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id="1zlx7hpjjv5" class="right">文章来源:<a href="">北京创联汇通电气</a> ????? 发布时间： 2023-10-31 16:19:35</div> </div> <div class="1zlx7hpjjv5" id="daodu"><span>导读：</span>干式变压器的正常工作条件是过载、外部短路引起的过流、外部接地短路引起的中性点过电压、油箱泄漏引起的油位下降或冷却系统故障引起的温升。此外，大容量干式变压器由于其额定工作磁通密度高，与电压频率比成正比，在过电压或低频运行时，可能导致干式变压器过励磁故障。鉴于上述情况，大型干式变压器一般采用以下?；し绞? </div> <p><p>干式变压器的正常工作条件是过载、外部短路引起的过流、外部接地短路引起的中性点过电压、油箱泄漏引起的油位下降或冷却系统故障引起的温升。此外，大容量干式变压器由于其额定工作磁通密度高，与电压频率比成正比，在过电压或低频运行时，可能导致干式变压器过励磁故障。鉴于上述情况，大型干式变压器一般采用以下?；し绞剑?/p><p><img src="/static/upload/image/20231031/1698741275657760.jpg" alt="IMG_1113.jpg"/></p><p>一、气体保护：?；じ墒奖溲蛊髂诓慷搪泛陀臀唤档?。</p><p>二、差动?；?、电流速断?；ぃ罕；じ墒奖溲蛊魅谱榛虺鱿叩南嗉涠搪?、大接地电流系统的接地短路和绕组匝间短路。</p><p>三.过流?；ぃ罕；ね獠肯嗉涠搪?，作为气体?；ず筒疃；?或电流速断?；?的后备保护。</p><p>四.零序电流?；ぃ罕；ご蠼拥氐缌飨低惩獠康ハ嘟拥囟搪?。</p><p>五.过载?；ぃ憾猿乒乇；ぶ蛔饔糜谛藕?。</p><p><br/></p><p><br/></p></p> <div class="1zlx7hpjjv5" id="prevnext"> <span>上一篇：<a href="/cpzs/8940.html">变压器的电流计算方法</a> </span>????? <span>下一篇：<a href="/cpzs/8942.html">干式变压器外壳的作用</a></span> </div> </div> </div>   <div 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