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class="source"><span>日期：2024-09-10</span><span>瀏覽：507次</span></p> <div> <h1 style="margin-top:0;margin-bottom:0;line-height:33px"><strong><span style="font-family: 宋體;font-size: 19px">高壓試驗(yàn)變壓器使用方法</span></strong><strong></strong></h1><p style="text-indent:37px;line-height:33px"><span style=";font-family:宋體;font-size:19px">1、YDJ-（G）、TDM（G）試驗(yàn)變壓器做被試品的工頻耐壓試驗(yàn)使用接線原理圖見(jiàn)圖6。</span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img45.chem17.com/9/20240910/638615547389854942895.png" width="476" height="302" title="638615547389854942895.png" alt="638615547389854942895.png"/></p><p style="text-align:center;line-height:150%"><span style=";font-family:宋體;font-size:14px"> </span><br/></p><p style="text-align:center;line-height:31px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">圖</span><span style="font-family:宋體">6：被試品工頻耐壓試驗(yàn)接線圖</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">圖中：</span><span style="font-family:宋體">R</span></span><span style=";font-family:宋體;font-size:19px;position:relative;top:9px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:19px"> </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">限流電阻</span></span> <span style=";font-family:宋體;font-size:19px">RCF </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">阻容分壓器</span></span> <span style=";font-family:宋體;font-size:19px">R</span><span style=";font-family:宋體;font-size:19px;position:relative;top:7px"><span style="font-family:宋體">F</span></span><span style=";font-family:宋體;font-size:19px"> </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">球間隙保護(hù)電阻</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">G </span></span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">球間隙</span></span> <span style=";font-family:宋體;font-size:19px">C</span><span style=";font-family:宋體;font-size:19px;position:relative;top:7px"><span style="font-family:宋體">X</span></span><span style=";font-family:宋體;font-size:19px"> </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">被試品</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px">注：高壓尾必須可靠接地。</span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">工頻耐壓試驗(yàn)中限流電阻</span><span style="font-family:宋體">R</span></span><span style=";font-family:宋體;font-size:19px;position:relative;top:9px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">應(yīng)根據(jù)試驗(yàn)變壓器的額定容量來(lái)選擇。如高壓側(cè)額定輸出電流在</span><span style="font-family:宋體">100 </span></span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">300mA時(shí)，可取0.5 - 1Ω∕ⅴ（試驗(yàn)電壓）；高壓側(cè)額定輸出電流為1A以上時(shí)，可取1Ω∕ⅴ（試驗(yàn)電壓）。常用水電阻作為限流電阻，管子長(zhǎng)度可按150KV∕m考慮，管子的粗細(xì)應(yīng)具有足夠的熱容量（水阻液配制方法：用蒸餾水加入適量硫酸銅配制成各種不同的阻值）。</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">球間隙及保護(hù)電阻：當(dāng)電壓超過(guò)球間隙整定值時(shí)（一般取試驗(yàn)電壓的</span><span style="font-family:宋體">110％ - 120％）球間隙放電，對(duì)被試品起到保護(hù)作用。球間隙保護(hù)電阻可按1Ω∕ⅴ（試驗(yàn)電壓）選取。</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">在工頻耐壓試驗(yàn)中，低壓側(cè)測(cè)量電壓（儀表電壓）不是非常準(zhǔn)確的，其原因是由于試驗(yàn)變壓器存在著漏坑，在這上個(gè)漏抗上必然存在著壓降或容升，使試品上的電壓低于或高于低壓側(cè)測(cè)量電壓表上反映出來(lái)的電壓。工頻耐壓試驗(yàn)時(shí)，被試品上的電壓高于試驗(yàn)變壓器的輸出電壓，也就是所謂容升現(xiàn)象。感應(yīng)耐壓試驗(yàn)時(shí)，試驗(yàn)變壓器的漏抗必須存在著壓降。為了準(zhǔn)確測(cè)量被試品上所施加的電壓，因此常在高壓側(cè)接入</span><span style="font-family:宋體">RCF阻容分壓器來(lái)測(cè)量電壓（見(jiàn)圖6）。</span></span></p><p style="text-indent:37px;line-height:32px"><strong><span style=";font-family:宋體;font-size:19px">工頻耐壓試驗(yàn)操作注意事項(xiàng)：</span></strong><strong></strong></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">（</span><span style="font-family:宋體">1）試驗(yàn)人員應(yīng)做好分工，明確相互間聯(lián)系辦法。并有專門人監(jiān)護(hù)現(xiàn)場(chǎng)安全及觀察試品狀態(tài)。</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">（</span><span style="font-family:宋體">2）被試品應(yīng)先清掃干凈，并絕對(duì)干燥，以免損壞被試品和試驗(yàn)帶來(lái)的誤差。</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">（</span><span style="font-family:宋體">3）對(duì)于大型試驗(yàn)，一般都應(yīng)先進(jìn)行空升試驗(yàn)。即不接試品時(shí)升壓至試驗(yàn)電壓，校對(duì)各種表計(jì)，調(diào)整球間隙。</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">（</span><span style="font-family:宋體">4）升壓速度不能太快，并必須防止突然加壓。例如調(diào)壓器不在零位的突然合閘。也不能突然切斷電源，一般應(yīng)在調(diào)壓器降至零位時(shí)拉閘。</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">（</span><span style="font-family:宋體">5）當(dāng)電壓升至試驗(yàn)電壓時(shí)，開(kāi)始計(jì)時(shí)，到1min后，迅速降壓到1∕3試驗(yàn)電壓以下時(shí)，才能拉開(kāi)電源。</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">（</span><span style="font-family:宋體">6）在升壓或耐壓試驗(yàn)過(guò)程，如發(fā)現(xiàn)下列不正常情況時(shí)，應(yīng)立即降壓，切斷電源。停止試驗(yàn)并查明原因：①電壓表指針擺動(dòng)很大；②發(fā)現(xiàn)絕緣燒焦或冒煙；③被試品內(nèi)有不正常的聲音。</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">（</span><span style="font-family:宋體">7）耐壓試驗(yàn)前后應(yīng)測(cè)量絕緣電阻，檢查絕緣情況。</span></span></p><p style="text-indent:37px;line-height:32px"><span style=";font-family:宋體;font-size:19px">2、</span><span style=";font-family:宋體;font-size:19px">TDM（G）</span><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">試驗(yàn)變壓器在做被試品的直流耐壓或泄漏試驗(yàn)時(shí)接線原理圖如圖</span><span style="font-family:宋體">7。</span></span></p><p style="text-indent:37px;line-height:32px"><strong><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">注：此試驗(yàn)應(yīng)先抽出短路桿</span><span style="font-family:宋體">“D"，圖7中所示。</span></span></strong><strong></strong></p><p style="text-align: center"><img style="max-width: 800px; max-height: 300%; width: 431px; height: 300px;" src="https://img44.chem17.com/9/20240910/638615548421866929336.png" width="431" height="300" title="6763fcce-4db1-42ab-861f-7247e063cd15.png" alt="6763fcce-4db1-42ab-861f-7247e063cd15.png" border="0" vspace="0"/></p><p style="text-align:center;line-height:150%"><span style=";font-family:宋體;font-size:14px"> </span><br/></p><p style="text-align:center;line-height:33px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">圖</span><span style="font-family:宋體">7：高壓直流泄漏試驗(yàn)接線圖</span></span></p><p style="text-indent:37px;line-height:33px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">圖中：</span><span style="font-family:宋體">V</span></span><span style=";font-family:宋體;font-size:19px;position:relative;top:3px"><span style="font-family:宋體">D</span></span><span style=";font-family:宋體;font-size:19px"> </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">高壓硅堆</span></span> <span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">R</span></span><span style=";font-family:宋體;font-size:19px;position:relative;top:9px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:19px"> </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">限流電阻</span></span> <span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">C</span></span><span style=";font-family:宋體;font-size:19px;position:relative;top:9px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:19px"> </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">高壓濾波電容</span></span></p><p style="text-indent:37px;line-height:33px"><span style=";font-family:宋體;font-size:19px">RCF </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">阻容分壓器</span></span> <span style=";font-family:宋體;font-size:19px">C</span><span style=";font-family:宋體;font-size:19px;position:relative;top:3px"><span style="font-family:宋體">X</span></span><span style=";font-family:宋體;font-size:19px"> </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">被試品</span></span> <span style=";font-family:宋體;font-size:19px">uA </span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">帶保護(hù)微安帶</span></span></p><p style="text-indent:37px;line-height:33px"><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">泄露試驗(yàn)中限流電阻</span><span style="font-family:宋體">R</span></span><span style=";font-family:宋體;font-size:19px;position:relative;top:9px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">選擇在額定輸出電壓時(shí)，輸出端短路電流不超過(guò)高壓硅堆的最大整流電流。如電壓硅堆的最大整流電流為</span><span style="font-family:宋體">100mA時(shí)用于60KV的試驗(yàn)裝置中，限流電阻按R</span></span><span style=";font-family:宋體;font-size:19px;position:relative;top:9px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:19px">=60/0.1=600KΩ選擇。限流電阻還應(yīng)具有足夠的容量和沿面放電距離。高壓濾流電容C</span><span style=";font-family:宋體;font-size:19px;position:relative;top:9px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">一般選擇在</span><span style="font-family:宋體">0.01 </span></span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">0.1uF，當(dāng)被試品的電容量很大時(shí)，C</span></span><span style=";font-family:宋體;font-size:19px;position:relative;top:9px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:19px">可省略不用。</span></p><p style="text-indent:37px;line-height:33px"><strong><span style=";font-family:宋體;font-size:19px">泄漏試驗(yàn)的操作及注意事項(xiàng)：</span></strong><strong></strong></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">（1） </span><span style=";font-family:宋體;font-size:19px">試驗(yàn)前應(yīng)先檢查被試品是否停電，接地放電，一切對(duì)外連線是否擦干凈。要嚴(yán)防將試驗(yàn)電壓加到有人工作的部位上去。</span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">（2） </span><span style=";font-family:宋體;font-size:19px">接好試驗(yàn)裝置的接線后，應(yīng)復(fù)查無(wú)誤后才可加壓。應(yīng)特別注意檢查高壓設(shè)備及引線與地、與操作人員安全距離，被試品的外殼是否可靠接地，要按安全規(guī)程中所規(guī)定的內(nèi)容進(jìn)行試驗(yàn)。</span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">（3） </span><span style=";font-family:宋體;font-size:19px">對(duì)于大電容量設(shè)備應(yīng)緩慢升壓，防止被試品的充電電流燒壞微安表。必要時(shí)應(yīng)分級(jí)加壓，分別讀取各級(jí)電壓下微安表的穩(wěn)定讀數(shù)。</span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">（4） </span><span style=";font-family:宋體;font-size:19px">試驗(yàn)過(guò)程，應(yīng)密切監(jiān)視被試品、試驗(yàn)裝置、微安表，一旦發(fā)生擊穿、閃爍等異常現(xiàn)象應(yīng)立即降壓，切斷電源，并查明原因，詳細(xì)記錄。</span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">（5） </span><span style=";font-family:宋體;font-size:19px">試驗(yàn)完畢，降壓，切斷電源后應(yīng)將被試品及試驗(yàn)裝置本身充分放電。</span></p><h1 style="margin-top:0;margin-bottom:0;line-height:33px"><strong><span style="font-family: 宋體;font-size: 19px">高壓試驗(yàn)變壓器注意事項(xiàng)</span></strong><strong></strong></h1><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">1、 </span><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">按照您所進(jìn)行的試驗(yàn)接好工作線路。試驗(yàn)變壓器的外殼以及操作系統(tǒng)的外殼必須可靠接地。試驗(yàn)變壓的高壓繞組的</span><span style="font-family:宋體">X端（高壓尾）以及測(cè)量繞組的F端必須可靠接地。</span></span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">2、 </span><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">做串級(jí)試驗(yàn)時(shí)，第二級(jí)、第三級(jí)試驗(yàn)變壓器的低壓繞組成</span><span style="font-family:宋體">X端，測(cè)量繞組的F端以及高壓繞組的X端（高壓端）均接本級(jí)試驗(yàn)變壓器具外殼。第二級(jí)、第三級(jí)試驗(yàn)變壓器的外殼必須通過(guò)絕緣支架接地。</span></span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">3、 </span><span style=";font-family:宋體;font-size:19px">接通電源前，操作系統(tǒng)的調(diào)壓器必須調(diào)到零位后方可接通電源，合閘，開(kāi)始升壓。</span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">4、 </span><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">從零開(kāi)始勻速旋轉(zhuǎn)調(diào)壓器手輪升壓。升壓方式有：快速升壓法，即</span><span style="font-family:宋體">20s逐級(jí)升壓法；慢速升壓法，即60s逐級(jí)升壓法；極慢速升壓法供選用。電壓從零開(kāi)始按一定的升壓方式和速度上升到您所需的額定試驗(yàn)電壓的75％后，再以每秒2％額定試驗(yàn)電壓的速度升到您所需的試驗(yàn)電壓，并密切注意測(cè)量?jī)x表的及被試品的情況。升壓過(guò)程中或試驗(yàn)過(guò)程中如發(fā)現(xiàn)測(cè)量?jī)x表的指示及被試品情況異常，應(yīng)立即降壓，切斷電源，查明情況。</span></span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">5、 </span><span style=";font-family:宋體;font-size:19px">試驗(yàn)完畢后，應(yīng)在數(shù)秒內(nèi)勻速的將調(diào)壓器返回至零位，然后切斷電源。</span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">6、 </span><span style=";font-family:宋體;font-size:19px">本產(chǎn)品不得超過(guò)額定參數(shù)使用。除試驗(yàn)必需外，決不電壓通電或斷電。</span></p><p style="margin-left:0;text-indent:37px;line-height:33px"><span style="font-family:宋體;font-size:19px">7、 </span><span style=";font-family:宋體;font-size:19px"><span style="font-family:宋體">使用本產(chǎn)品做高壓試驗(yàn)時(shí)，除熟悉本說(shuō)明書外，還必須嚴(yán)格執(zhí)行國(guó)家有關(guān)標(biāo)準(zhǔn)和操作規(guī)程?？蓞⒄?/span><span style="font-family:宋體">GB311.1 </span></span><span style=";font-family:宋體;font-size:19px">–</span><span style=";font-family:宋體;font-size:19px"> <span style="font-family:宋體">97《高壓輸變?cè)O(shè)備的絕緣配合，高壓試驗(yàn)技術(shù)》；《電氣設(shè)備預(yù)防性試驗(yàn)規(guī)程》等。</span></span></p><p><br/></p> <div id="iqaqewgi6e" class="clear"></div> </div> <div id="iqaqewgi6e" class="article"> <p>上一篇：<a href="/Article-3803761.html">交直流試驗(yàn)變壓器配套產(chǎn)品選型</a></p> <p>下一篇：<a href="/Article-3803738.html">交直流高壓試驗(yàn)變壓器產(chǎn)品結(jié)構(gòu)與原理</a></p> </div> <div id="iqaqewgi6e" class="clear"></div> </div> </div> <div id="iqaqewgi6e" class="n-9"> <div id="iqaqewgi6e" class="c-right"> <div id="iqaqewgi6e" class="c-1 r-pro"> <div id="iqaqewgi6e" class="c-left"> <div id="iqaqewgi6e" class="h-2"><a href="/products.html">產(chǎn)品分類</a></div> 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