{"id":1319,"date":"2025-11-25T15:44:54","date_gmt":"2025-11-25T15:44:54","guid":{"rendered":"https:\/\/xbrele.com\/?page_id=1319"},"modified":"2025-11-26T08:47:13","modified_gmt":"2025-11-26T08:47:13","slug":"oil-immersed-transformer","status":"publish","type":"page","link":"https:\/\/xbrele.com\/ar\/power-distribution-transformers\/oil-immersed-transformer\/","title":{"rendered":"\u0645\u062d\u0648\u0644 \u0645\u063a\u0645\u0648\u0631 \u0628\u0627\u0644\u0632\u064a\u062a"},"content":{"rendered":"\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-d99d032\" data-block-id=\"d99d032\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-d99d032-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-d70f59e\" data-v=\"4\" data-block-id=\"d70f59e\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-d70f59e-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-d70f59e-inner-blocks\">\n<section id=\"sec1-oil-hero\" style=\"position:relative;overflow:hidden;background:radial-gradient(circle at top left,#0f172a 0,#020617 55%,#020617 100%);color:#e5e7eb;padding:200px 0 128px;\">\n  <style>\n    \/* \u4fdd\u6301\u5168\u7ad9\u7edf\u4e00\u7684 Hero \u6837\u5f0f *\/\n    #sec1-oil-hero{font-family:system-ui,-apple-system,BlinkMacSystemFont,\"Segoe UI\",Arial,sans-serif;}\n    #sec1-oil-hero .ckg-shell{max-width:1600px;margin:0 auto;padding:0 5vw;}\n    #sec1-oil-hero .ckg-grid{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(0,1fr);gap:48px;align-items:center;}\n    #sec1-oil-hero .kicker{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:600;color:#38bdf8;margin-bottom:10px;}\n    #sec1-oil-hero h1{font-size:40px;line-height:1.1;letter-spacing:-.03em;margin:0 0 14px;color:#f9fafb;}\n    #sec1-oil-hero p.sub{max-width:660px;font-size:16px;line-height:1.75;margin:0 0 20px;color:#cbd5f5;text-wrap:balance;}\n    #sec1-oil-hero .badges{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 32px;}\n    #sec1-oil-hero .badge{padding:6px 12px;border-radius:999px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;border:1px solid rgba(148,163,184,.55);background:rgba(15,23,42,.45);backdrop-filter:blur(14px);color:#e5e7eb;}\n    #sec1-oil-hero .hero-card{position:relative;border-radius:20px;padding:22px 22px 18px;background:radial-gradient(circle at top left,rgba(56,189,248,.20) 0,rgba(15,23,42,.95) 36%,rgba(15,23,42,1) 100%);border:1px solid rgba(148,163,184,.4);box-shadow:0 18px 45px rgba(15,23,42,.9);color:#e5e7eb;}\n    #sec1-oil-hero .hero-card h3{font-size:15px;text-transform:uppercase;letter-spacing:.16em;color:#bae6fd;margin:0 0 10px;}\n    #sec1-oil-hero .hero-card p{font-size:13px;line-height:1.7;color:#cbd5f5;margin:0 0 16px;}\n    #sec1-oil-hero .spec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 20px;font-size:12px;}\n    .spec-label{text-transform:uppercase;letter-spacing:.12em;color:#9ca3af;margin-bottom:2px;font-size:11px;}\n    .spec-value{font-weight:500;color:#e5e7eb;}\n    @media(max-width:1000px){#sec1-oil-hero .ckg-grid{grid-template-columns:1fr;}}\n    @media(max-width:690px){#sec1-oil-hero h1{font-size:30px;}#sec1-oil-hero .ckg-shell{padding:0 18px;}}\n  <\/style>\n\n  <div class=\"ckg-shell\">\n    <div class=\"ckg-grid\">\n\n      <!-- \u5de6\u4fa7\u6807\u9898\u533a -->\n      <div>\n        <div class=\"kicker\">Power Distribution Transformers<\/div>\n\n        <h1>Oil-Immersed Distribution &amp; Power Transformers (S11 \/ S13 \/ 35kV OLTC)<\/h1>\n\n        <p class=\"sub\">\n          XBRELE provides a complete range of <strong>oil-immersed transformers<\/strong> covering S11 &amp; S13\n          fully-sealed distribution units (30\u20132500&nbsp;kVA) and <strong>35kV OLTC power transformers<\/strong> for substations and heavy-duty industrial networks.\n          Designed for long service life, low losses and reliable outdoor performance.\n        <\/p>\n\n        <div class=\"badges\">\n          <span class=\"badge\">S11 \/ S13 Series<\/span>\n          <span class=\"badge\">10kV \/ 20kV<\/span>\n          <span class=\"badge\">35kV OLTC<\/span>\n          <span class=\"badge\">30\u201331500 kVA<\/span>\n        <\/div>\n      <\/div>\n\n      <!-- \u53f3\u4fa7\u5361\u7247 -->\n      <aside class=\"hero-card\">\n        <h3>Series Overview<\/h3>\n        <p>\n          Three major product lines for utility grids and industrial substations, featuring hermetically sealed tanks,\n          low-loss core design and optional on-load tap changers for 35kV networks.\n        <\/p>\n\n        <div class=\"spec-grid\">\n          <div>\n            <div class=\"spec-label\">Primary Voltage<\/div>\n            <div class=\"spec-value\">10 \/ 20 \/ 35 kV<\/div>\n          <\/div>\n          <div>\n            <div class=\"spec-label\">Secondary Voltage<\/div>\n            <div class=\"spec-value\">0.4 \/ 6.3 \/ 10.5 kV<\/div>\n          <\/div>\n          <div>\n            <div class=\"spec-label\">Capacity Range<\/div>\n            <div class=\"spec-value\">30 \u2013 31500 kVA<\/div>\n          <\/div>\n          <div>\n            <div class=\"spec-label\">Tap Regulation<\/div>\n            <div class=\"spec-value\">Off-Circuit \/ OLTC (35kV)<\/div>\n          <\/div>\n        <\/div>\n      <\/aside>\n\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-315131c\" data-block-id=\"315131c\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-315131c-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-e35c9ef\" data-v=\"4\" data-block-id=\"e35c9ef\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-e35c9ef-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-e35c9ef-inner-blocks\">\n<section id=\"sec2-oil-overview\" style=\"background:#ffffff;padding:90px 0 105px;color:#0f172a;\">\n  <style>\n    \/* \u6837\u5f0f\u4fdd\u6301\u4e0d\u53d8 *\/\n    #sec2-oil-overview{font-family:system-ui,-apple-system,BlinkMacSystemFont,\"Segoe UI\",Arial,sans-serif;}\n    #sec2-oil-overview .ckg-shell{max-width:1600px;margin:0 auto;padding:0 5vw;}\n    #sec2-oil-overview .overview-grid{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:52px;align-items:center;}\n    #sec2-oil-overview .kicker{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:600;color:#38bdf8;margin-bottom:10px;}\n    #sec2-oil-overview h2{font-size:28px;margin:0 0 14px;color:#0f172a;}\n    #sec2-oil-overview p{font-size:16px;line-height:1.85;margin:0 0 16px;color:#4b5563;}\n    #sec2-oil-overview .apps-box{background:#f9fafb;padding:22px 24px 20px;border-radius:18px;border:1px solid #e5e7eb;}\n    #sec2-oil-overview .apps-box h3{font-size:15px;margin:0 0 12px;text-transform:uppercase;letter-spacing:.14em;color:#6b7280;}\n    #sec2-oil-overview ul{list-style:none;padding:0;margin:0;display:grid;gap:10px;font-size:14px;color:#374151;}\n    #sec2-oil-overview ul li{position:relative;padding-left:16px;line-height:1.7;}\n    #sec2-oil-overview ul li::before{content:\"\";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:999px;background:#38bdf8;}\n    @media(max-width:1000px){#sec2-oil-overview .overview-grid{grid-template-columns:1fr;}}\n  <\/style>\n\n  <div class=\"ckg-shell\">\n    <div class=\"overview-grid\">\n      <div>\n        <div class=\"kicker\">Oil Immersed Transformer Overview<\/div>\n        <h2>Reliable Oil Immersed Transformers for Power Distribution &amp; Industrial Applications<\/h2>\n\n        <p>\n          Oil Immersed Transformers are essential for a variety of industrial and power distribution applications. XBRELE offers a range of oil-immersed transformers to meet the specific needs of mining, industrial drives, and high-voltage power networks.\n        <\/p>\n\n        <p>\n          <strong>Oil Immersed Transformers<\/strong> are built with precision engineering to provide excellent cooling and insulation, ensuring safe and efficient power delivery. Whether it&#8217;s for small-scale industrial usage or large-scale power generation, these transformers are built to last and perform under demanding conditions.\n        <\/p>\n        \n        <p style=\"margin-top:14px;font-size:14px;color:#4b5563;\">\n          For more details on power distribution transformers and specifications, visit our \n          <a href=\"https:\/\/xbrele.com\/power-distribution-transformers\" style=\"color:#2563EB;text-decoration:none;\">\n            Power Distribution Transformers Pillar Page\n          <\/a>.\n        <\/p>\n      <\/div>\n\n      <aside class=\"apps-box\">\n        <h3>Typical Applications<\/h3>\n        <ul>\n          <li><strong>Power Distribution Networks:<\/strong> Reliable transformers for urban and rural grid systems.<\/li>\n          <li><strong>Mining Operations:<\/strong> Essential for powering mining equipment in remote areas.<\/li>\n          <li><strong>Industrial Machinery:<\/strong> Ensures stable operation of industrial machinery and high-capacity drives.<\/li>\n          <li><strong>Renewable Energy Projects:<\/strong> Essential for converting and distributing electricity from solar and wind energy plants.<\/li>\n        <\/ul>\n      <\/aside>\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-04bdf4f\" data-block-id=\"04bdf4f\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-04bdf4f-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-bdc6629\" data-v=\"4\" data-block-id=\"bdc6629\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-bdc6629-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-bdc6629-inner-blocks\">\n<section id=\"sec3-oil-tech\" style=\"padding:90px 0;background:#F9FAFB;\">\n  <style>\n    \/* 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.main-fig-large{margin:0;border-radius:14px;border:1px solid #E5E7EB;background:#F9FAFB;padding:10px;}\n    #sec3-oil-tech .main-fig-large img{display:block;width:100%;max-height:320px;object-fit:contain;}\n    #sec3-oil-tech .main-fig-large figcaption{margin-top:8px;font-size:12px;color:#6B7280;line-height:1.6;}\n    \n    #sec3-oil-tech .thumb-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px;}\n    #sec3-oil-tech .thumb-btn{border-radius:10px;border:1px solid #E5E7EB;padding:4px;background:#FFFFFF;cursor:pointer;transition:all .18s ease;}\n    #sec3-oil-tech .thumb-btn img{display:block;width:90px;height:70px;object-fit:contain;}\n    #sec3-oil-tech .thumb-btn.active{border-color:#0F172A;box-shadow:0 0 0 1px #0F172A,0 8px 18px rgba(15,23,42,.18);}\n    #sec3-oil-tech .thumb-btn:hover{border-color:#0F172A;}\n    \n    \/* \u53f3\u4fa7\u63cf\u8ff0\u533a *\/\n    #sec3-oil-tech .panel-right h3{font-size:16px;margin:0 0 10px;color:#0F172A;}\n    #sec3-oil-tech .panel-right p{font-size:14px;line-height:1.8;margin:0 0 10px;color:#4B5563;}\n    #sec3-oil-tech .badge-row{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 14px;}\n    #sec3-oil-tech .badge{padding:4px 10px;border-radius:999px;font-size:11px;letter-spacing:.12em;text-transform:uppercase;border:1px solid #D1D5DB;background:#F9FAFB;color:#4B5563;}\n    \n    \/* \u8868\u683c\u6837\u5f0f (\u9996\u5217\u51bb\u7ed3) *\/\n    #sec3-oil-tech .block-title{font-size:14px;font-weight:600;margin:4px 0 6px;color:#111827;}\n    #sec3-oil-tech .table-wrap{width:100%;overflow-x:auto;border-radius:14px;border:1px solid #E5E7EB;background:#F9FAFB;margin-bottom:18px;box-shadow:inset -10px 0 10px -10px rgba(0,0,0,0.05);}\n    #sec3-oil-tech table{width:100%;border-collapse:separate;border-spacing:0;font-size:13px;min-width:600px;}\n    #sec3-oil-tech th,#sec3-oil-tech td{padding:10px 12px;border-bottom:1px solid #E5E7EB;text-align:left;color:#111827;white-space:nowrap;}\n    #sec3-oil-tech 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24px rgba(15,23,42,.18);white-space:nowrap;}\n    #sec3-oil-tech .cta-btn:hover{background:#1E293B;box-shadow:0 14px 32px rgba(15,23,42,.25);transform:translateY(-1px);}\n    \n    @media(max-width:1000px){#sec3-oil-tech .panel-grid{grid-template-columns:1fr;}}\n    @media(max-width:690px){#sec3-oil-tech .tech-shell{padding:0 18px;}#sec3-oil-tech h2{font-size:24px;}#sec3-oil-tech .thumb-btn img{width:80px;height:60px;}}\n  <\/style>\n\n  <div class=\"tech-shell\">\n    <div class=\"sec-header\">\n      <div class=\"kicker\">Technical Specifications<\/div>\n      <h2>Oil-Immersed Transformer Data by Series<\/h2>\n      <p>\n        Switch between S11, S13 and 35kV OLTC series to review rated capacities, voltage combinations and key loss parameters\n        for power distribution and substation applications.\n      <\/p>\n    <\/div>\n\n    <!-- TAB \u5207\u6362\u6309\u94ae -->\n    <div class=\"tab-row\">\n      <div class=\"tab-btn active\" data-tab=\"s11-series\">S11-M 10\/20kV Fully Sealed Distribution<\/div>\n      <div class=\"tab-btn\" data-tab=\"s13-series\">S13-M Low-Loss Fully Sealed Distribution<\/div>\n      <div class=\"tab-btn\" data-tab=\"oil-35kv-series\">35kV OLTC Oil-Immersed Power Transformers<\/div>\n    <\/div>\n\n    <!-- TAB 1\uff1aS11-M -->\n    <div id=\"s11-series\" class=\"tab-content active\">\n      <div class=\"panel-card\">\n        <div class=\"panel-grid\">\n          <div>\n            <figure class=\"main-fig-large\">\n              <img decoding=\"async\" id=\"s11-main-img\" src=\"\/wp-content\/uploads\/2025\/11\/xbrele-s11-m-oil-immersed-transformer-main.webp\" alt=\"XBRELE S11-M 10kV fully sealed oil-immersed distribution transformer\">\n              <figcaption id=\"s11-main-cap\">\n                S11-M 30\u20132500kVA fully sealed oil-immersed distribution transformer for 10\/0.4kV and 20\/0.4kV networks.\n              <\/figcaption>\n            <\/figure>\n          <\/div>\n          <div class=\"panel-right\">\n            <h3>S11-M Series &mdash; Standard Fully Sealed Distribution Transformers<\/h3>\n            <p>\n              S11-M oil-immersed transformers adopt hermetically sealed corrugated tanks, high-permeability cold-rolled\n              silicon steel cores and concentric windings. They are widely used in 10kV and 20kV distribution networks with\n              30&ndash;2500kVA ratings.\n            <\/p>\n            <div class=\"badge-row\">\n              <span class=\"badge\">10 \/ 20kV<\/span>\n              <span class=\"badge\">30&ndash;2500kVA<\/span>\n              <span class=\"badge\">Fully Sealed Tank<\/span>\n              <span class=\"badge\">Dyn11 \/ Yyn0<\/span>\n            <\/div>\n          <\/div>\n        <\/div>\n\n        <p class=\"block-title\">Main Technical Parameters (S11-M Series)<\/p>\n<div class=\"table-wrap\">\n  <table>\n    <thead>\n      <tr>\n        <th>Rated capacity (kVA)<\/th>\n        <th>High voltage (kV)<\/th>\n        <th>Tap range (%)<\/th>\n        <th>Low voltage (kV)<\/th>\n        <th>Connection group<\/th>\n        <th>No-load loss (W)<\/th>\n        <th>Load loss (W) Dyn11\/Yyn0<\/th>\n        <th>Impedance voltage (%)<\/th>\n        <th>No-load current (%)<\/th>\n      <\/tr>\n    <\/thead>\n    <tbody>\n    <tr>\n      <td>30<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>100<\/td>\n      <td>600\/630<\/td>\n      <td>4.0<\/td>\n      <td>1.50<\/td>\n    <\/tr>\n    <tr>\n      <td>50<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>130<\/td>\n      <td>870\/910<\/td>\n      <td>4.0<\/td>\n      <td>1.30<\/td>\n    <\/tr>\n    <tr>\n      <td>80<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>180<\/td>\n      <td>1040\/1090<\/td>\n      <td>4.0<\/td>\n      <td>1.20<\/td>\n    <\/tr>\n    <tr>\n      <td>100<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>200<\/td>\n      <td>1250\/1310<\/td>\n      <td>4.0<\/td>\n      <td>1.10<\/td>\n    <\/tr>\n    <tr>\n      <td>125<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>240<\/td>\n      <td>1500\/1580<\/td>\n      <td>4.0<\/td>\n      <td>1.10<\/td>\n    <\/tr>\n    <tr>\n      <td>160<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>280<\/td>\n      <td>1800\/1890<\/td>\n      <td>4.0<\/td>\n      <td>1.00<\/td>\n    <\/tr>\n    <tr>\n      <td>200<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>340<\/td>\n      <td>2200\/2310<\/td>\n      <td>4.0<\/td>\n      <td>1.00<\/td>\n    <\/tr>\n    <tr>\n      <td>250<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>400<\/td>\n      <td>2600\/2730<\/td>\n      <td>4.0<\/td>\n      <td>0.90<\/td>\n    <\/tr>\n    <tr>\n      <td>315<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>480<\/td>\n      <td>3650\/3830<\/td>\n      <td>4.0<\/td>\n      <td>0.90<\/td>\n    <\/tr>\n    <tr>\n      <td>400<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>570<\/td>\n      <td>4300\/4520<\/td>\n      <td>4.0<\/td>\n      <td>0.80<\/td>\n    <\/tr>\n    <tr>\n      <td>500<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>680<\/td>\n      <td>5150\/5410<\/td>\n      <td>4.0<\/td>\n      <td>0.80<\/td>\n    <\/tr>\n    <tr>\n      <td>630<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>810<\/td>\n      <td>6200<\/td>\n      <td>4.0<\/td>\n      <td>0.60<\/td>\n    <\/tr>\n    <tr>\n      <td>800<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>980<\/td>\n      <td>7500<\/td>\n      <td>4.5<\/td>\n      <td>0.60<\/td>\n    <\/tr>\n    <tr>\n      <td>1000<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>1150<\/td>\n      <td>10300<\/td>\n      <td>4.5<\/td>\n      <td>0.60<\/td>\n    <\/tr>\n    <tr>\n      <td>1250<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>1360<\/td>\n      <td>12000<\/td>\n      <td>4.5<\/td>\n      <td>0.50<\/td>\n    <\/tr>\n    <tr>\n      <td>1600<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>1640<\/td>\n      <td>14500<\/td>\n      <td>4.5<\/td>\n      <td>0.50<\/td>\n    <\/tr>\n    <tr>\n      <td>2000<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>1940<\/td>\n      <td>18300<\/td>\n      <td>5.0<\/td>\n      <td>0.40<\/td>\n    <\/tr>\n    <tr>\n      <td>2500<\/td>\n      <td>10<\/td>\n      <td>\u00b15 \/ \u00b12\u00d72.5<\/td>\n      <td>0.4<\/td>\n      <td>Dyn11 or Yyn0<\/td>\n      <td>2290<\/td>\n      <td>21200<\/td>\n      <td>5.0<\/td>\n      <td>0.40<\/td>\n    <\/tr>\n    <\/tbody>\n  <\/table>  \n<\/div>\n\n\n        <div class=\"cta-right-col\">\n          <a href=\"#ct-popup-882\" class=\"cta-btn\">Request S11-M Detailed Datasheet<\/a>\n        <\/div>\n      <\/div>\n    <\/div>\n\n    <!-- TAB 2\uff1aS13-M -->\n    <div id=\"s13-series\" class=\"tab-content\">\n      <div class=\"panel-card\">\n        <div class=\"panel-grid\">\n          <div>\n            <figure class=\"main-fig-large\">\n              <img decoding=\"async\" id=\"s13-main-img\" src=\"\/wp-content\/uploads\/2025\/11\/xbrele-s13-m-oil-immersed-transformer-main.webp\" alt=\"XBRELE S13-M fully sealed low-loss oil-immersed distribution transformer\">\n              <figcaption id=\"s13-main-cap\">\n                S13-M 30&ndash;2500kVA low-loss fully sealed oil-immersed distribution transformer for 10kV systems.\n              <\/figcaption>\n            <\/figure>\n          <\/div>\n          <div class=\"panel-right\">\n            <h3>S13-M Series &mdash; Low-Loss Fully Sealed Distribution Transformers<\/h3>\n            <p>\n              S13-M transformers upgrade the S11 platform with optimized three-column iron cores and tighter loss limits.\n              Compared with the previous generation, no-load loss is reduced by about 30% and noise is lower,\n              while keeping high short-circuit strength and overload capability.\n            <\/p>\n            <div class=\"badge-row\">\n              <span class=\"badge\">Low Loss<\/span>\n              <span class=\"badge\">30&ndash;2500kVA<\/span>\n              <span class=\"badge\">10kV<\/span>\n              <span class=\"badge\">GB \/ IEC Compliant<\/span>\n            <\/div>\n          <\/div>\n        <\/div>\n\n        <p class=\"block-title\">Key Technical Parameters &amp; Loss Data (S13-M)<\/p>\n        <div class=\"table-wrap\">\n          <table>\n            <thead>\n              <tr>\n                <th>Rated capacity (kVA)<\/th>\n                <th>High voltage (kV)<\/th>\n                <th>Tap range (%)<\/th>\n                <th>Low voltage (kV)<\/th>\n                <th>Connection group<\/th>\n                <th>No-load loss (W)<\/th>\n                <th>Load loss (W) Dyn11 \/ Yyn0<\/th>\n                <th>Impedance voltage (%)<\/th>\n                <th>No-load current (%)<\/th>\n              <\/tr>\n            <\/thead>\n            <tbody>\n          \n            <tr><td>30<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>100<\/td><td>600 \/ 630<\/td><td>4.0<\/td><td>1.50<\/td><\/tr>\n          \n            <tr><td>50<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>130<\/td><td>870 \/ 910<\/td><td>4.0<\/td><td>1.30<\/td><\/tr>\n          \n            <tr><td>80<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>180<\/td><td>1040 \/ 1090<\/td><td>4.0<\/td><td>1.20<\/td><\/tr>\n          \n            <tr><td>100<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>200<\/td><td>1250 \/ 1310<\/td><td>4.0<\/td><td>1.10<\/td><\/tr>\n          \n            <tr><td>125<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>240<\/td><td>1500 \/ 1580<\/td><td>4.0<\/td><td>1.10<\/td><\/tr>\n          \n            <tr><td>160<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>280<\/td><td>1800 \/ 1890<\/td><td>4.0<\/td><td>1.00<\/td><\/tr>\n          \n            <tr><td>200<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>340<\/td><td>2200 \/ 2310<\/td><td>4.0<\/td><td>1.00<\/td><\/tr>\n          \n            <tr><td>250<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>400<\/td><td>2600 \/ 2730<\/td><td>4.0<\/td><td>0.90<\/td><\/tr>\n          \n            <tr><td>315<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>480<\/td><td>3650 \/ 3830<\/td><td>4.0<\/td><td>0.90<\/td><\/tr>\n          \n            <tr><td>400<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>570<\/td><td>4300 \/ 4520<\/td><td>4.0<\/td><td>0.80<\/td><\/tr>\n          \n            <tr><td>500<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>680<\/td><td>5150 \/ 5410<\/td><td>4.0<\/td><td>0.80<\/td><\/tr>\n          \n            <tr><td>630<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>810<\/td><td>6200<\/td><td>4.0<\/td><td>0.60<\/td><\/tr>\n          \n            <tr><td>800<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>980<\/td><td>7500<\/td><td>4.5<\/td><td>0.60<\/td><\/tr>\n          \n            <tr><td>1000<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>1150<\/td><td>10300<\/td><td>4.5<\/td><td>0.60<\/td><\/tr>\n          \n            <tr><td>1250<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>1360<\/td><td>12000<\/td><td>4.5<\/td><td>0.50<\/td><\/tr>\n          \n            <tr><td>1600<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>1640<\/td><td>14500<\/td><td>4.5<\/td><td>0.50<\/td><\/tr>\n          \n            <tr><td>2000<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>1940<\/td><td>18300<\/td><td>5.0<\/td><td>0.40<\/td><\/tr>\n          \n            <tr><td>2500<\/td><td>10<\/td><td>\u00b15 \/ \u00b12\u00d72.5<\/td><td>0.4<\/td><td>Dyn11 \/ Yyn0<\/td><td>2290<\/td><td>21200<\/td><td>5.0<\/td><td>0.40<\/td><\/tr>\n          \n            <\/tbody>\n          <\/table>          \n        <\/div>\n\n        <div class=\"cta-right-col\">\n          <a href=\"#ct-popup-882\" class=\"cta-btn\">Request S13-M Loss Table &amp; Datasheet<\/a>\n        <\/div>\n      <\/div>\n    <\/div>\n\n    <!-- TAB 3\uff1a35kV OLTC -->\n<div id=\"oil-35kv-series\" class=\"tab-content\">\n  <div class=\"panel-card\">\n    <div class=\"panel-grid\">\n      <div>\n        <figure class=\"main-fig-large\">\n          <img decoding=\"async\" id=\"oil35-main-img\" src=\"\/wp-content\/uploads\/2025\/11\/xbrele-35kv-oltc-oil-immersed-transformer-main.webp\" alt=\"XBRELE 35kV double-winding OLTC oil-immersed power transformer for substations\">\n          <figcaption id=\"oil35-main-cap\">\n            35kV double-winding oil-immersed power transformer with on-load tap changer, rated up to 31500kVA.\n          <\/figcaption>\n        <\/figure>\n      <\/div>\n      <div class=\"panel-right\">\n        <h3>35kV Double-Winding OLTC Oil-Immersed Power Transformers<\/h3>\n        <p>\n          Designed as main step-down units in 35kV substations and industrial power systems, these transformers\n          provide flexible voltage regulation with on-load tap changers and wide capacity coverage from 50kVA up to 31500kVA.\n        <\/p>\n        <div class=\"badge-row\">\n          <span class=\"badge\">35kV<\/span>\n          <span class=\"badge\">50&ndash;31500kVA<\/span>\n          <span class=\"badge\">On-load Tap Changer<\/span>\n          <span class=\"badge\">Dyn11 \/ Yd11 \/ YNd11<\/span>\n        <\/div>\n      <\/div>\n    <\/div>\n\n    <!-- \u5185\u5c42\u5b50 TAB \u6837\u5f0f -->\n    <style>\n      .oil35-sub-tabs{\n        display:flex;\n        flex-wrap:wrap;\n        gap:8px;\n        margin:32px 0 20px;\n      }\n      .oil35-sub-tabs .oil35-sub-tab-btn{\n        border:1px solid #CBD5E1;\n        padding:8px 16px;\n        border-radius:999px;\n        font-size:14px;\n        line-height:1.4;\n        cursor:pointer;\n        background:#FFFFFF;\n        color:#0F172A;\n        transition:all .2s ease;\n      }\n      .oil35-sub-tabs .oil35-sub-tab-btn:hover{\n        border-color:#38BDF8;\n      }\n      .oil35-sub-tabs .oil35-sub-tab-btn.active{\n        background:#0F172A;\n        border-color:#0F172A;\n        color:#FFFFFF;\n      }\n      .oil35-sub-panel{\n        display:none;\n      }\n      .oil35-sub-panel.active{\n        display:block;\n      }\n      .oil35-sub-panel .block-title{\n        margin-top:4px;\n      }\n      .oil35-sub-panel table{\n        width:100%;\n        border-collapse:collapse;\n        font-size:14px;\n      }\n      .oil35-sub-panel thead th{\n        background:#F1F5F9;\n        border-bottom:1px solid #E2E8F0;\n        padding:10px 12px;\n        text-align:left;\n      }\n      .oil35-sub-panel tbody td{\n        border-bottom:1px solid #E2E8F0;\n        padding:8px 12px;\n        white-space:nowrap;\n      }\n      .oil35-sub-panel tbody tr:nth-child(even){\n        background:#F9FAFB;\n      }\n      .oil35-sub-panel tbody tr:last-child td{\n        border-bottom:none;\n      }\n    <\/style>\n\n    <!-- \u5185\u5c42 TAB \u6309\u94ae -->\n    <div class=\"oil35-sub-tabs\">\n      <button class=\"oil35-sub-tab-btn active\" data-sub-target=\"oil35-50-2500\">\n        50&ndash;2500kVA (Distribution OLTC Section)\n      <\/button>\n      <button class=\"oil35-sub-tab-btn\" data-sub-target=\"oil35-630-31500\">\n        630&ndash;31500kVA (Overall 35kV OLTC Range)\n      <\/button>\n      <button class=\"oil35-sub-tab-btn\" data-sub-target=\"oil35-2000-31500\">\n        2000&ndash;31500kVA (High-Capacity OLTC Section)\n      <\/button>\n    <\/div>\n\n    <!-- \u5b50 TAB 1\uff1a50\u20132500kVA \u8be6\u7ec6\u8868 -->\n    <div id=\"oil35-50-2500\" class=\"oil35-sub-panel active\">\n      <p class=\"block-title\">Main Technical Parameters &mdash; 35kV OLTC Section 50&ndash;2500kVA<\/p>\n      <div class=\"table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Rated capacity (kVA)<\/th>\n              <th>No-load loss (kW)<\/th>\n              <th>Load loss (kW)<\/th>\n              <th>No-load current (%)<\/th>\n              <th>Short-circuit impedance (%)<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>50<\/td>\n              <td>0.16<\/td>\n              <td>1.20 \/ 1.14 (Dyn11 \/ Yyn0)<\/td>\n              <td>1.3<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>100<\/td>\n              <td>0.23<\/td>\n              <td>2.01 \/ 1.91<\/td>\n              <td>1.1<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>125<\/td>\n              <td>0.27<\/td>\n              <td>2.37 \/ 2.26<\/td>\n              <td>1.1<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>160<\/td>\n              <td>0.28<\/td>\n              <td>2.82 \/ 2.68<\/td>\n              <td>1.0<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>200<\/td>\n              <td>0.34<\/td>\n              <td>3.32 \/ 3.16<\/td>\n              <td>1.0<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>250<\/td>\n              <td>0.40<\/td>\n              <td>3.95 \/ 3.76<\/td>\n              <td>0.95<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>315<\/td>\n              <td>0.48<\/td>\n              <td>4.75 \/ 4.53<\/td>\n              <td>0.95<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>400<\/td>\n              <td>0.58<\/td>\n              <td>5.74 \/ 5.47<\/td>\n              <td>0.85<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>500<\/td>\n              <td>0.68<\/td>\n              <td>6.91 \/ 6.58<\/td>\n              <td>0.85<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>630<\/td>\n              <td>0.83<\/td>\n              <td>7.86<\/td>\n              <td>0.65<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>800<\/td>\n              <td>0.98<\/td>\n              <td>9.40<\/td>\n              <td>0.65<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>1000<\/td>\n              <td>1.15<\/td>\n              <td>11.5<\/td>\n              <td>0.65<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>1250<\/td>\n              <td>1.40<\/td>\n              <td>13.9<\/td>\n              <td>0.60<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>1600<\/td>\n              <td>1.69<\/td>\n              <td>16.6<\/td>\n              <td>0.60<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>2000<\/td>\n              <td>1.99<\/td>\n              <td>19.7<\/td>\n              <td>0.55<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>2500<\/td>\n              <td>2.36<\/td>\n              <td>23.2<\/td>\n              <td>0.55<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p style=\"font-size:13px;color:#64748B;margin-top:8px;\">\n        Note: Above data for 50&ndash;2500kVA section are based on the manufacturer&rsquo;s standard OLTC design at 35kV \/ 10.5kV, Dyn11 or Yyn0 connection.\n      <\/p>\n    <\/div>\n\n    <!-- \u5b50 TAB 2\uff1a630\u201331500kVA \u6982\u89c8\u8868\uff08\u6574\u4f53\u533a\u95f4\u6458\u8981\uff09 -->\n    <div id=\"oil35-630-31500\" class=\"oil35-sub-panel\">\n      <p class=\"block-title\">Main Technical Parameters &mdash; 35kV OLTC Overall Range 630&ndash;31500kVA<\/p>\n      <div class=\"table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Item<\/th>\n              <th>Parameter<\/th>\n              <th>Typical value \/ range<\/th>\n              <th>Remarks<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>Rated capacity<\/td>\n              <td>kVA<\/td>\n              <td>630 &ndash; 31500<\/td>\n              <td>Covers 630, 800, 1000, 1250, 1600, 2000, 2500, 3150, 4000, 5000, 6300, 8000, 10000, 12500, 16000, 20000, 25000, 31500.<\/td>\n            <\/tr>\n            <tr>\n              <td>High voltage<\/td>\n              <td>kV<\/td>\n              <td>35 \/ 35&ndash;38.5<\/td>\n              <td>Standard 35kV system; some models with extended 35&ndash;38.5kV tap range.<\/td>\n            <\/tr>\n            <tr>\n              <td>Tap range (HV)<\/td>\n              <td>%<\/td>\n              <td>&plusmn;2&times;2.5 \/ &plusmn;5 \/ +3&nbsp;~&nbsp;&minus;5<\/td>\n              <td>On-load tap changer, tap pattern depends on capacity section.<\/td>\n            <\/tr>\n            <tr>\n              <td>Low voltage<\/td>\n              <td>kV<\/td>\n              <td>6.3 \/ 6.6 \/ 10.5<\/td>\n              <td>Typical distribution levels for 35kV\/10kV substations and feeders.<\/td>\n            <\/tr>\n            <tr>\n              <td>Connection group<\/td>\n              <td>&mdash;<\/td>\n              <td>Dyn11 \/ Yd11 \/ YNd11<\/td>\n              <td>Dyn11 for low-voltage 10.5kV section; Yd11 or YNd11 for higher capacities.<\/td>\n            <\/tr>\n            <tr>\n              <td>No-load loss<\/td>\n              <td>kW<\/td>\n              <td>\u2248 0.83kW (630kVA) &ndash; 21.8kW (31500kVA)<\/td>\n              <td>See detailed tables in the following high-capacity section or full catalogue.<\/td>\n            <\/tr>\n            <tr>\n              <td>Load loss (75&deg;C)<\/td>\n              <td>kW<\/td>\n              <td>\u2248 7.86kW (630kVA) &ndash; 115kW (31500kVA)<\/td>\n              <td>Values vary with capacity and tap position.<\/td>\n            <\/tr>\n            <tr>\n              <td>No-load current<\/td>\n              <td>%<\/td>\n              <td>0.25 &ndash; 0.65<\/td>\n              <td>Typical range from 35kV OLTC transformer parameter tables.<\/td>\n            <\/tr>\n            <tr>\n              <td>Short-circuit impedance<\/td>\n              <td>%<\/td>\n              <td>6.5 \/ 7.0 \/ 8.0 \/ 10.0<\/td>\n              <td>6.5% for small ratings, 7&ndash;8% for medium, 10% for 25&ndash;31.5MVA section.<\/td>\n            <\/tr>\n            <tr>\n              <td>Cooling<\/td>\n              <td>&mdash;<\/td>\n              <td>ONAN \/ ONAF (for larger ratings)<\/td>\n              <td>Natural oil-air cooling; forced oil cooling available for high-capacity models.<\/td>\n            <\/tr>\n            <tr>\n              <td>Measuring &amp; protection<\/td>\n              <td>&mdash;<\/td>\n              <td>Oil level gauge, oil temperature indicator, gas relay, Buchholz relay<\/td>\n              <td>As described in the structural features section of the catalogue.<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n    <\/div>\n\n    <!-- \u5b50 TAB 3\uff1a2000\u201331500kVA \u8be6\u7ec6\u8868 -->\n    <div id=\"oil35-2000-31500\" class=\"oil35-sub-panel\">\n      <p class=\"block-title\">Main Technical Parameters &mdash; 35kV OLTC High-Capacity Section 2000&ndash;31500kVA<\/p>\n      <div class=\"table-wrap\">\n        <table>\n          <thead>\n            <tr>\n              <th>Rated capacity (kVA)<\/th>\n              <th>No-load loss (kW)<\/th>\n              <th>Load loss (kW)<\/th>\n              <th>No-load current (%)<\/th>\n              <th>Short-circuit impedance (%)<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td>2000<\/td>\n              <td>2.30<\/td>\n              <td>19.2<\/td>\n              <td>0.50<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>2500<\/td>\n              <td>2.72<\/td>\n              <td>20.6<\/td>\n              <td>0.50<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>3150<\/td>\n              <td>3.23<\/td>\n              <td>24.7<\/td>\n              <td>0.50<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>4000<\/td>\n              <td>3.87<\/td>\n              <td>29.1<\/td>\n              <td>0.50<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>5000<\/td>\n              <td>4.64<\/td>\n              <td>34.2<\/td>\n              <td>0.50<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>6300<\/td>\n              <td>5.63<\/td>\n              <td>36.7<\/td>\n              <td>0.50<\/td>\n              <td>6.5<\/td>\n            <\/tr>\n            <tr>\n              <td>8000<\/td>\n              <td>7.87<\/td>\n              <td>40.6<\/td>\n              <td>0.40<\/td>\n              <td>7.0<\/td>\n            <\/tr>\n            <tr>\n              <td>10000<\/td>\n              <td>9.28<\/td>\n              <td>48.0<\/td>\n              <td>0.40<\/td>\n              <td>7.0<\/td>\n            <\/tr>\n            <tr>\n              <td>12500<\/td>\n              <td>10.9<\/td>\n              <td>56.8<\/td>\n              <td>0.35<\/td>\n              <td>7.0<\/td>\n            <\/tr>\n            <tr>\n              <td>16000<\/td>\n              <td>13.1<\/td>\n              <td>70.3<\/td>\n              <td>0.35<\/td>\n              <td>8.0<\/td>\n            <\/tr>\n            <tr>\n              <td>20000<\/td>\n              <td>15.3<\/td>\n              <td>82.7<\/td>\n              <td>0.35<\/td>\n              <td>8.0<\/td>\n            <\/tr>\n            <tr>\n              <td>25000<\/td>\n              <td>18.3<\/td>\n              <td>97.8<\/td>\n              <td>0.30<\/td>\n              <td>10.0<\/td>\n            <\/tr>\n            <tr>\n              <td>31500<\/td>\n              <td>21.8<\/td>\n              <td>115<\/td>\n              <td>0.30<\/td>\n              <td>10.0<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p style=\"font-size:13px;color:#64748B;margin-top:8px;\">\n        Note: High-capacity 35kV OLTC transformers are usually supplied with Yd11 or YNd11 connection, tap ranges &plusmn;2&times;2.5% \/ &plusmn;5%, and cooling type ONAN\/ONAF according to project requirements.\n      <\/p>\n    <\/div>\n\n    <!-- \u5171\u7528 CTA -->\n    <div class=\"cta-right-col\">\n      <a href=\"#ct-popup-882\" class=\"cta-btn\">Request 35kV OLTC Specification Sheet<\/a>\n    <\/div>\n  <\/div>\n\n  <!-- \u5185\u5c42 TAB \u5207\u6362\u811a\u672c -->\n  <script>\n    (function(){\n      var subBtns = document.querySelectorAll('.oil35-sub-tabs .oil35-sub-tab-btn');\n      var subPanels = document.querySelectorAll('.oil35-sub-panel');\n      if(!subBtns.length){ return; }\n      subBtns.forEach(function(btn){\n        btn.addEventListener('click', function(){\n          var target = btn.getAttribute('data-sub-target');\n          subBtns.forEach(function(b){ b.classList.remove('active'); 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<\/script>\n<\/section>\n\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-37d69ed\" data-block-id=\"37d69ed\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-37d69ed-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-c445034\" data-v=\"4\" data-block-id=\"c445034\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-c445034-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-c445034-inner-blocks\">\n<section id=\"sec4-oil-features\" style=\"background:#ffffff;padding:90px 0 100px;\">\n  <style>\n    #sec4-oil-features{font-family:system-ui,-apple-system,BlinkMacSystemFont,\"Segoe UI\",Arial,sans-serif;color:#0F172A;}\n    #sec4-oil-features .features-shell{max-width:1600px;margin:0 auto;padding:0 5vw;}\n    #sec4-oil-features 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.grid{grid-template-columns:1fr;}\n      #sec4-oil-features h2{font-size:24px;}\n    }\n  <\/style>\n\n  <div class=\"features-shell\">\n    <div class=\"sec-header\">\n      <div class=\"kicker\">Engineered for Reliability<\/div>\n      <h2>Features of Oil-Immersed Distribution Transformers<\/h2>\n      <p>\n        XBRELE\u2019s S11\/S13\/S20 oil-immersed transformers deliver high efficiency, low loss and exceptional durability\u2014ideal for power distribution grids, industrial loads, and substations.\n      <\/p>\n    <\/div>\n\n    <div class=\"grid\">\n\n      <!-- Card 1 -->\n      <article class=\"card\">\n        <span class=\"tag\">Low Loss<\/span>\n        <h3>High-Efficiency Core (S11 \/ S13)<\/h3>\n        <p>\n          Built with high-grade cold-rolled silicon steel sheets to minimize core loss and improve long-term operating efficiency.\n        <\/p>\n        <ul>\n          <li><strong>Reduced no-load loss:<\/strong> 20\u201330% lower than older S9 models.<\/li>\n          <li><strong>Lower noise level:<\/strong> Precision lamination &#038; core structure.<\/li>\n          <li><strong>Energy-saving design:<\/strong> Meets GB\/T 6451 and IEC 60076.<\/li>\n        <\/ul>\n      <\/article>\n\n      <!-- Card 2 -->\n      <article class=\"card\">\n        <span class=\"tag\">Durability<\/span>\n        <h3>High-Strength Windings<\/h3>\n        <p>\n          Copper windings with improved mechanical strength help the transformer withstand short-circuit forces during grid faults.\n        <\/p>\n        <ul>\n          <li><strong>Strong short-circuit endurance:<\/strong> Reinforced with epoxy resin &#038; bracing.<\/li>\n          <li><strong>Uniform temperature rise:<\/strong> Improves insulation lifespan.<\/li>\n          <li><strong>Multi-layer structure:<\/strong> Ensures stable electrical performance.<\/li>\n        <\/ul>\n      <\/article>\n\n      <!-- Card 3 -->\n      <article class=\"card\">\n        <span class=\"tag\">Safe &#038; Reliable<\/span>\n        <h3>Oil Tank &#038; Cooling System<\/h3>\n        <p>\n          The robust oil-immersed structure ensures stable cooling and long-term safe operation in outdoor or indoor substations.\n        <\/p>\n        <ul>\n          <li><strong>Corrugated tank:<\/strong> Self-regulating oil expansion.<\/li>\n          <li><strong>ONAN cooling:<\/strong> Natural air-oil circulation.<\/li>\n          <li><strong>Enhanced sealing:<\/strong> Prevents leakage and moisture ingress.<\/li>\n        <\/ul>\n      <\/article>\n\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-907c214\" data-block-id=\"907c214\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-907c214-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-03df50c\" data-v=\"4\" data-block-id=\"03df50c\"><div 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4px;color:#E5F0FF;}\n    #sec5-oil-quality .qa-card p{font-size:13px;color:#CBD5F5;margin:0 0 4px;line-height:1.65;}\n    #sec5-oil-quality .qa-block{margin-top:10px;padding-top:10px;border-top:1px solid rgba(148,163,184,.35);}\n    #sec5-oil-quality .qa-block:first-of-type{margin-top:6px;padding-top:0;border-top:none;}\n    #sec5-oil-quality .qa-block h4{font-size:13.5px;margin:0 0 3px;color:#E5F0FF;}\n    #sec5-oil-quality .qa-block ul{list-style:none;padding:0;margin:0;font-size:12.5px;color:#E5E7EB;}\n    #sec5-oil-quality .qa-block li{position:relative;padding-left:12px;margin-bottom:2px;line-height:1.6;}\n    #sec5-oil-quality .qa-block li::before{\n      content:\"\";position:absolute;left:0;top:7px;\n      width:5px;height:5px;border-radius:999px;background:#38BDF8;\n    }\n    #sec5-oil-quality .qa-note{font-size:12px;color:#9CA3AF;margin-top:4px;}\n    \n    @media(max-width:1000px){#sec5-oil-quality .grid{grid-template-columns:1fr;}}\n    @media(max-width:690px){\n      #sec5-oil-quality .quality-shell{padding:0 18px;}\n      #sec5-oil-quality h2{font-size:22px;}\n    }\n  <\/style>\n\n  <div class=\"quality-shell\">\n    <div class=\"sec-header\">\n      <div class=\"kicker\">Quality Control<\/div>\n      <h2>Manufacturing &#038; Testing of Oil-Immersed Transformers<\/h2>\n      <p>\n        From core laminations to final routine tests, every XBRELE oil-immersed transformer follows a controlled process to meet IEC\/GB standards for long-term grid operation.\n      <\/p>\n    <\/div>\n\n    <div class=\"grid\">\n      <!-- \u5de5\u827a\u6d41\u7a0b\uff08\u5de6\u4fa7\uff09 -->\n      <article class=\"process-card\">\n        <h3>Controlled Manufacturing Process<\/h3>\n        <p>\n          Each S11 \/ S13 \/ S20 transformer is manufactured on a dedicated line, with clear steps from core cutting to vacuum oil filling to ensure low loss and high reliability.\n        <\/p>\n\n        <ul class=\"step-list\">\n          <li class=\"step\">\n            <div class=\"step-badge\">01<\/div>\n            <div>\n              <h4>Core Cutting &#038; Stacking<\/h4>\n              <p>Cold-rolled silicon steel sheets are sheared and stacked with step-lap joints to reduce no-load loss and noise.<\/p>\n            <\/div>\n          <\/li>\n\n          <li class=\"step\">\n            <div class=\"step-badge\">02<\/div>\n            <div>\n              <h4>Coil Winding &#038; Insulation<\/h4>\n              <p>Copper windings are wound under tension, with layered paper\/pressboard insulation to withstand thermal and short-circuit stresses.<\/p>\n            <\/div>\n          <\/li>\n\n          <li class=\"step\">\n            <div class=\"step-badge\">03<\/div>\n            <div>\n              <h4>Vacuum Drying<\/h4>\n              <p>The active part is placed in a vacuum oven to remove moisture from windings and insulation, improving dielectric strength.<\/p>\n            <\/div>\n          <\/li>\n\n          <li class=\"step\">\n            <div class=\"step-badge\">04<\/div>\n            <div>\n              <h4>Oil Filling Under Vacuum<\/h4>\n              <p>Transformer oil is filled under deep vacuum, ensuring no air bubbles remain in the winding and core gaps.<\/p>\n            <\/div>\n          <\/li>\n\n          <li class=\"step\">\n            <div class=\"step-badge\">05<\/div>\n            <div>\n              <h4>Tank Sealing &#038; Leak Test<\/h4>\n              <p>Fully assembled tanks are pressure-tested and checked for leaks before painting and nameplate installation.<\/p>\n            <\/div>\n          <\/li>\n        <\/ul>\n      <\/article>\n\n      <!-- \u8d28\u91cf\u6807\u51c6\uff08\u53f3\u4fa7\uff09 -->\n      <section class=\"qa-card\">\n        <div class=\"qa-section\">\n          <div class=\"qa-label\">QA Standards<\/div>\n          <h3>Routine &#038; Type Tests<\/h3>\n          <p>\n            All transformers are tested according to IEC 60076 and GB\/T 6451 to verify electrical, mechanical and insulation performance.\n          <\/p>\n        <\/div>\n\n        <div class=\"qa-block\">\n          <h4>Electrical Verification<\/h4>\n          <ul>\n            <li><strong>Ratio &#038; polarity test<\/strong> for each tapping position.<\/li>\n            <li><strong>Impedance &#038; load loss<\/strong> measured at 75&nbsp;\u00b0C.<\/li>\n            <li><strong>No-load loss &#038; current<\/strong> checked against S11 \/ S13 tables.<\/li>\n            <li><strong>Applied &#038; induced voltage tests<\/strong> on HV\/LV windings.<\/li>\n          <\/ul>\n        <\/div>\n\n        <div class=\"qa-block\">\n          <h4>Oil &#038; Insulation Control<\/h4>\n          <ul>\n            <li>Transformer oil tested for breakdown voltage, water content and dielectric loss factor.<\/li>\n            <li>Insulation resistance and tan&nbsp;\u03b4 measurements on windings.<\/li>\n            <li>Partial discharge level checked for higher-capacity units.<\/li>\n          <\/ul>\n        <\/div>\n\n        <div class=\"qa-block\">\n          <h4>Mechanical &#038; Appearance<\/h4>\n          <ul>\n            <li>Design verified for short-circuit withstand capability.<\/li>\n            <li>Tank, radiators and fittings inspected for weld quality and coating.<\/li>\n            <li>Final visual check of nameplate, terminals and accessories before packing.<\/li>\n          <\/ul>\n          <div class=\"qa-note\">\n            Test reports can be supplied with each shipment for utility or EPC documentation.\n          <\/div>\n        <\/div>\n      <\/section>\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-369b2e3\" data-block-id=\"369b2e3\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-369b2e3-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-62724dd\" data-v=\"4\" data-block-id=\"62724dd\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-62724dd-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-62724dd-inner-blocks\">\n<section id=\"sec6-transformer-delivery\" style=\"background:#F9FAFB;padding:88px 0 96px;\">\n  <style>\n    \/* \u6837\u5f0f\u4fdd\u6301\u5168\u7ad9\u7edf\u4e00 *\/\n    #sec6-transformer-delivery{font-family:system-ui,-apple-system,BlinkMacSystemFont,\"Segoe UI\",Arial,sans-serif;color:#0F172A;}\n    #sec6-transformer-delivery .delivery-shell{max-width:1600px;margin:0 auto;padding:0 5vw;}\n    #sec6-transformer-delivery .sec-header{max-width:860px;margin:0 auto 40px;text-align:center;}\n    #sec6-transformer-delivery .kicker{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:600;color:#38BDF8;margin-bottom:8px;}\n    #sec6-transformer-delivery h2{font-size:28px;margin:0 0 10px;color:#0F172A;}\n    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 <div class=\"delivery-shell\">\n    <div class=\"sec-header\">\n      <div class=\"kicker\">Delivery &amp; Project Support<\/div>\n      <h2>Reliable Supply Chain for Oil-Immersed Transformers<\/h2>\n      <p>\n        Whether you need urgent replacements for a transformer in the field or batch delivery for a new power station, \n        XBRELE ensures that your oil-immersed transformers arrive on time and are ready for installation.\n      <\/p>\n    <\/div>\n\n    <div class=\"grid\">\n      <article class=\"card\">\n        <div class=\"card-label\">Lead Time<\/div>\n        <h3>Flexible Production<\/h3>\n        <p>\n          Our manufacturing lines are optimized for quick turnaround of oil-immersed transformers, ensuring your critical installations are met with urgency.\n        <\/p>\n        <ul>\n          <li><strong>Standard Oil-Immersed Transformers:<\/strong> 30\u201345 days lead time for typical orders.<\/li>\n          <li><strong>Custom Capacity Orders:<\/strong> 60\u201390 days depending on transformer rating and customization.<\/li>\n          <li><strong>Emergency Replacements:<\/strong> Expedited production for urgent replacement needs in power plants.<\/li>\n          <li><strong>Spare Parts:<\/strong> Key components such as bushings and tap changers are often in stock for quick dispatch.<\/li>\n        <\/ul>\n      <\/article>\n\n      <article class=\"card\">\n        <div class=\"card-label\">Packing &amp; Logistics<\/div>\n        <h3>Heavy-Duty Protection<\/h3>\n        <p>\n          We understand that shipping transformers requires robust protection. Our packaging ensures your equipment survives long-distance transport safely.\n        <\/p>\n        <ul>\n          <li><strong>Wooden Crating:<\/strong> Fumigated export crates for all heavy transformer units.<\/li>\n          <li><strong>Moisture Barrier:<\/strong> Vacuum-sealed packaging to prevent corrosion, especially during sea transport.<\/li>\n          <li><strong>Shock Protection:<\/strong> Reinforced foam and padding to protect delicate transformer bushings.<\/li>\n          <li><strong>Labeling:<\/strong> Detailed labeling for easy receiving and inventory at project sites.<\/li>\n        <\/ul>\n      <\/article>\n\n      <article class=\"card\">\n        <div class=\"card-label\">Engineering Support<\/div>\n        <h3>Expert Installation &amp; Maintenance Support<\/h3>\n        <p>\n          Our technical team is always ready to assist with transformer installation and ongoing maintenance requirements.\n        <\/p>\n        <ul>\n          <li><strong>Installation Guidance:<\/strong> We provide guidance on proper installation and connection for optimal performance.<\/li>\n          <li><strong>Testing &amp; Commissioning:<\/strong> We offer on-site commissioning support to ensure the transformer operates within the required parameters.<\/li>\n          <li><strong>Maintenance Protocols:<\/strong> Detailed maintenance manuals and recommendations to ensure long-term reliability.<\/li>\n          <li><strong>Remote Support:<\/strong> Our team can provide remote troubleshooting and support if necessary.<\/li>\n        <\/ul>\n      <\/article>\n    <\/div>\n\n    <div class=\"cta-row\">\n      <a href=\"#ct-popup-882\" class=\"cta-btn\">\n        Get a Quote &amp; Lead Time for Oil-Immersed Transformers\n      <\/a>\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-4cb8284\" data-block-id=\"4cb8284\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-4cb8284-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-9af0dba\" data-v=\"4\" data-block-id=\"9af0dba\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-9af0dba-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-9af0dba-inner-blocks\">\n<section id=\"sec7-oil-faq\" style=\"padding:80px 0 100px;background:#ffffff;\">\n  <style>\n    #sec7-oil-faq{font-family:system-ui,-apple-system,BlinkMacSystemFont,\"Segoe UI\",Arial,sans-serif;color:#0F172A;}\n    \n    \/* Optimized container width *\/\n    #sec7-oil-faq .faq-shell{max-width:1200px;margin:0 auto;padding:0 5vw;}\n    \n    #sec7-oil-faq .faq-header{max-width:900px;margin:0 auto 48px;text-align:center;}\n    #sec7-oil-faq .faq-kicker{text-transform:uppercase;letter-spacing:.16em;font-size:12px;font-weight:600;color:#38BDF8;margin-bottom:10px;display:inline-block;background:#F0F9FF;padding:4px 12px;border-radius:99px;color:#0284C7;}\n    #sec7-oil-faq h2{font-size:30px;margin:0 0 14px;color:#0F172A;line-height:1.2;}\n    #sec7-oil-faq .faq-header p{margin:0 auto;font-size:16px;color:#4B5563;line-height:1.7;max-width:750px;}\n\n    \/* Grid Layout Optimization *\/\n    #sec7-oil-faq .faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;align-items:flex-start;}\n\n    #sec7-oil-faq details{border-radius:12px;border:1px solid #E2E8F0;background:#FFFFFF;padding:20px 24px;transition:all .2s ease;box-shadow:0 2px 4px rgba(0,0,0,0.02);}\n    #sec7-oil-faq details:hover{border-color:#CBD5E1;box-shadow:0 4px 12px rgba(0,0,0,0.04);}\n    #sec7-oil-faq details[open]{background:#F8FAFC;border-color:#CBD5E1;}\n    \n    #sec7-oil-faq summary{list-style:none;cursor:pointer;font-size:16px;font-weight:600;color:#1E293B;display:flex;justify-content:space-between;align-items:center;line-height:1.5;}\n    #sec7-oil-faq summary::-webkit-details-marker{display:none;}\n    \n    #sec7-oil-faq .faq-icon{flex-shrink:0;width:24px;height:24px;border-radius:99px;background:#F1F5F9;color:#64748B;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:bold;margin-left:12px;}\n    #sec7-oil-faq details[open] .faq-icon{background:#2563EB;color:#FFFFFF;transform:rotate(45deg);}\n    \n    #sec7-oil-faq .faq-answer{margin-top:12px;font-size:15px;color:#475569;line-height:1.75;}\n    \n    @media(max-width:690px){\n      #sec7-oil-faq .faq-grid{grid-template-columns:1fr;}\n      #sec7-oil-faq h2{font-size:24px;}\n      #sec7-oil-faq details{padding:16px;}\n    }\n  <\/style>\n\n  <div class=\"faq-shell\">\n    <div class=\"faq-header\">\n      <div class=\"faq-kicker\">FAQ \u00b7 Oil Immersed Transformers<\/div>\n      <h2>Common Questions About Oil Immersed Transformers<\/h2>\n      <p>\n        Here are answers to frequently asked questions about <strong>Oil Immersed Transformers<\/strong>, including their benefits, installation, and maintenance.\n      <\/p>\n    <\/div>\n\n    <div class=\"faq-grid\">\n      <details open>\n        <summary>\n          <span>What is an Oil Immersed Transformer?<\/span>\n          <span class=\"faq-icon\">+<\/span>\n        <\/summary>\n        <div class=\"faq-answer\">\n          An <strong>Oil Immersed Transformer<\/strong> is a type of transformer where the core and windings are submerged in oil. This oil not only provides insulation but also helps cool the transformer during operation. It is widely used in power distribution networks due to its reliability and cost-effectiveness.\n        <\/div>\n      <\/details>\n\n      <details>\n        <summary>\n          <span>What are the advantages of Oil Immersed Transformers?<\/span>\n          <span class=\"faq-icon\">+<\/span>\n        <\/summary>\n        <div class=\"faq-answer\">\n          Oil Immersed Transformers provide excellent cooling and insulation properties. The oil helps to dissipate heat and maintain optimal operating temperatures. Additionally, the oil provides dielectric strength, preventing short circuits. These transformers are reliable, cost-effective, and have a long service life when maintained properly.\n        <\/div>\n      <\/details>\n\n      <details>\n        <summary>\n          <span>What is the lifespan of an Oil Immersed Transformer?<\/span>\n          <span class=\"faq-icon\">+<\/span>\n        <\/summary>\n        <div class=\"faq-answer\">\n          The typical lifespan of an <strong>Oil Immersed Transformer<\/strong> is between 20 and 40 years, depending on usage, maintenance, and environmental factors. Regular oil testing and maintenance are key to ensuring longevity.\n        <\/div>\n      <\/details>\n\n      <details>\n        <summary>\n          <span>How do I maintain an Oil Immersed Transformer?<\/span>\n          <span class=\"faq-icon\">+<\/span>\n        <\/summary>\n        <div class=\"faq-answer\">\n          Maintenance of an Oil Immersed Transformer involves checking the oil quality, monitoring the temperature, inspecting the bushings, and testing the tap changer. Regular oil analysis is crucial for detecting moisture, contaminants, or any signs of deterioration. Periodic inspection of the transformer\u2019s mechanical parts is also necessary to ensure optimal operation.\n        <\/div>\n      <\/details>\n\n      <details>\n        <summary>\n          <span>Are Oil Immersed Transformers suitable for outdoor use?<\/span>\n          <span class=\"faq-icon\">+<\/span>\n        <\/summary>\n        <div class=\"faq-answer\">\n          Yes, Oil Immersed Transformers are designed for both indoor and outdoor use. For outdoor applications, they are usually housed in weatherproof enclosures to protect them from environmental factors like rain, dust, and temperature fluctuations.\n        <\/div>\n      <\/details>\n\n      <details>\n        <summary>\n          <span>Can I use an Oil Immersed Transformer in harsh environments?<\/span>\n          <span class=\"faq-icon\">+<\/span>\n        <\/summary>\n        <div class=\"faq-answer\">\n          Yes, Oil Immersed Transformers are ideal for use in harsh environments. Specialized models with solid-embedded poles and additional protection are available for use in industries with high pollution, humidity, or extreme temperatures. These models, such as the <strong>LZNJ Series<\/strong>, are designed to withstand challenging conditions like those found in cement plants or steel mills.\n        <\/div>\n      <\/details>\n\n      <details>\n        <summary>\n          <span>What testing standards are followed for Oil Immersed Transformers?<\/span>\n          <span class=\"faq-icon\">+<\/span>\n        <\/summary>\n        <div class=\"faq-answer\">\n          Oil Immersed Transformers are tested according to international standards, such as IEC 60076 and IEEE C57.12.01. These tests include dielectric tests, load losses, temperature rise, and mechanical strength tests to ensure the transformer operates safely and efficiently. \n          For more detailed information, check out the <a href=\"https:\/\/www.iec.ch\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"color:#2563EB;text-decoration:underline;\">IEC 60076 standards documentation<\/a>.\n        <\/div>\n      <\/details>\n    <\/div>\n  <\/div>\n<\/section>\n<\/div><\/div><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Power Distribution Transformers Oil-Immersed Distribution &amp; Power Transformers (S11 \/ S13 \/ 35kV OLTC) XBRELE provides a complete range of oil-immersed transformers covering S11 &amp; S13 fully-sealed distribution units (30\u20132500&nbsp;kVA) and 35kV OLTC power transformers for substations and heavy-duty industrial networks. Designed for long service life, low losses and reliable outdoor performance. S11 \/ S13 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1304,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_gspb_post_css":"","footnotes":""},"class_list":["post-1319","page","type-page","status-publish","hentry"],"blocksy_meta":{"has_hero_section":"disabled","vertical_spacing_source":"custom","content_area_spacing":"bottom","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/xbrele.com\/ar\/wp-json\/wp\/v2\/pages\/1319","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xbrele.com\/ar\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/xbrele.com\/ar\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/xbrele.com\/ar\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xbrele.com\/ar\/wp-json\/wp\/v2\/comments?post=1319"}],"version-history":[{"count":4,"href":"https:\/\/xbrele.com\/ar\/wp-json\/wp\/v2\/pages\/1319\/revisions"}],"predecessor-version":[{"id":1346,"href":"https:\/\/xbrele.com\/ar\/wp-json\/wp\/v2\/pages\/1319\/revisions\/1346"}],"up":[{"embeddable":true,"href":"https:\/\/xbrele.com\/ar\/wp-json\/wp\/v2\/pages\/1304"}],"wp:attachment":[{"href":"https:\/\/xbrele.com\/ar\/wp-json\/wp\/v2\/media?parent=1319"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}