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手持式電能表效驗儀特點與常見故障分析</span></div>  <div id="iqaqewgi6e" class="n-3 c-news"> <div id="iqaqewgi6e" class="newsnr"> <h1>手持式電能表效驗儀特點與常見故障分析</h1> <p class="source"><span>日期：2022-09-29</span><span>瀏覽：1567次</span></p> <div> <h1 style="line-height:150%"><span style=";font-family:黑體;line-height:150%;font-size:19px"><span style="font-family:黑體"></span></span></h1><p><span style=";font-family:黑體;font-size:19px"><span style="font-family:黑體">手持式電能表效驗儀特點與常見故障分析</span></span></p><p><span style=";font-family:黑體;font-size:19px"><span style="font-family:黑體">一、<span style="font-family: 黑體; font-size: 19px;">手持式電能表效驗儀</span>功能特點</span></span></p><p style="margin-left:24px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">1</span><span style="font-family:宋體">、儀器是集電能表校驗、電參量測試、互感器二次負(fù)荷測試和檢測</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">電網(wǎng)中發(fā)生波形畸變、電壓波動和三相不平衡等</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">電能質(zhì)量問題為一體的</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">高精度測試儀器。</span></span></p><p style="margin-left:24px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">2</span><span style="font-family:宋體">、不停電、不改變計量回路、不打開計量設(shè)備情況下，在線實負(fù)荷檢測計量設(shè)備的綜合誤差。</span></span></p><p style="margin-left:24px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">3</span><span style="font-family:宋體">、精確測量電壓，電流，有功功率，無功功率，相角，功率因數(shù)，頻率等多種電參量，從而計算出測試設(shè)備回路的測量誤差。</span></span></p><p style="margin-left:24px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">4</span><span style="font-family:宋體">、可顯示被測電壓和電流的矢量圖，用戶可以通過分析矢量圖得出計量設(shè)備接線的正確與否。同時，在三相三線接線方式時，可自動判斷</span><span style="font-family:Calibri">48</span><span style="font-family:宋體">種接線方式；追補電量自動計算功能，方便使用人員對接線有問題的用戶計算追補電量。</span></span></p><p style="margin-left:24px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">5</span><span style="font-family:宋體">、電流回路可使用鉗形互感器進行測量，操作人員無須斷開電流回路，就可以方便、安全的進行測量。</span></span></p><p style="margin-left:24px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">6</span><span style="font-family:宋體">、可校驗電壓表、電流表、功率表、相位表等指示儀表以及三相三線、三相四線、單相的</span><span style="font-family:Calibri">1A</span><span style="font-family:宋體">、</span><span style="font-family:Calibri">5A</span><span style="font-family:宋體">的各種有功和無功電能表?？赏瑫r檢測主副表的誤差。</span></span></p><p style="line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">7</span><span style="font-family:宋體">、可采用光電、手動、脈沖等方式進行電能表校驗。</span></span></p><p style="margin-left:24px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">8</span><span style="font-family:宋體">、</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">測量分析公用電網(wǎng)供到用戶端的交流電能質(zhì)量，其測量分析：頻率偏差、電壓偏差、電壓波動、三相電壓允許不平衡度和電網(wǎng)諧波。</span></span></p><p style="line-height: 27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">9</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、可顯示單相電壓</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">電流波形并可同時顯示三相電壓</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">電流波形。</span></span></p><p style="margin-left: 24px;line-height: 27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">10、負(fù)荷波動監(jiān)視：測量分析各種用電設(shè)備在不同運行狀態(tài)下對公用電網(wǎng)電能質(zhì)量造成的波動。記錄和存儲電壓、電流、有功功率、無功功率、視在功率、頻率、相位等電力參數(shù)。</span></span></p><p style="margin-left: 24px;line-height: 27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">11、</span></span><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">電力設(shè)備調(diào)整及運行過程動態(tài)監(jiān)視，幫助用戶解決電力設(shè)備調(diào)整及投運過程中出現(xiàn)的問題。</span></span></p><p style="margin-left:32px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">12、</span></span><span style=";font-family:宋體;font-size:16px"> </span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">測試分析電力系統(tǒng)中無功補償及濾波裝置動態(tài)參數(shù)并對其功能和技術(shù)指標(biāo)作出定量評價</span></span></p><p style="margin-left:32px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">13、可選配條碼掃描器，對電表的條碼進行自動錄入。</span></span></p><p style="margin-left:32px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:16px">4</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、選配</span><span style="font-family:宋體">W</span></span><span style=";font-family:宋體;font-size:16px">IFI(</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">藍牙</span></span><span style=";font-family:宋體;font-size:16px">)</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">模塊，用平板電腦或手機對儀器進行遠程操控。</span></span></p><p style="margin-left:32px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:16px">5</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、電能表的</span><span style="font-family:宋體">485通訊接口進行檢測，并能完成現(xiàn)場校驗多功能（智能）電能表的工作需求，可根據(jù)電表中已設(shè)置的需量周期和滑差的時間對需量進行誤差校驗。</span></span></p><p style="margin-left:32px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:Calibri">1</span></span><span style=";font-family:Calibri;font-size:16px">6</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、具備萬年歷、時鐘功能，實時顯示日期及時間?？稍诂F(xiàn)場校驗的同時保存測試數(shù)據(jù)和結(jié)果，并通過串口上傳至計算機，通過后臺管理軟件（選配件）實現(xiàn)數(shù)據(jù)微機化管理。</span></span></p><p style="margin-left:32px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:16px">7</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、采用大屏幕進口彩色液晶作為顯示器，中文圖形化操作界面并配有漢字提示信息、多參量顯示的液晶顯示界面，人機對話界面友好</span></span></p><p><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">1</span></span><span style=";font-family:宋體;font-size:16px">8</span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">、</span></span><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">體積小、重量輕，便于攜帶，既可用于現(xiàn)場測量，也可用做實驗室的標(biāo)準(zhǔn)設(shè)備。</span></span></p><p><span style="font-family: 黑體; font-size: 19px;"><span style="font-family: 黑體; font-size: 19px;">二，手持式電能表效驗儀</span>常見故障分析</span></p><h2 style="margin-top:0;margin-bottom:0;margin-left:28px;line-height:27px"><span style=";font-family:黑體;font-weight:normal;font-size:16px"><span style="font-family:黑體">1、常見故障</span></span></h2><p style="margin-left:56px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑴裝置接線錯誤</span></span></p><p style="margin-left:56px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑵電能表故障</span></span></p><p style="margin-left:56px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑶</span><span style="font-family:Calibri">CT</span><span style="font-family:宋體">部分故障</span></span></p><h2 style="margin-top:0;margin-bottom:0;margin-left:28px;line-height:27px"><span style=";font-family:黑體;font-weight:normal;font-size:16px"><span style="font-family:黑體">2、經(jīng)驗判斷</span></span></h2><p style="margin-left:77px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑴計量裝置正常時綜合誤差（含CT誤差、二次接線誤差和電表誤差）在±3%時。</span></span></p><p style="margin-left:77px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑵綜合誤差在-10%至-3%時一般可能為</span></span></p><p style="margin-left:77px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">a、電表不準(zhǔn)</span></span></p><p style="margin-left:77px;line-height:27px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">b、CT二次負(fù)載重</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">c、CT負(fù)誤差</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑶綜合誤差超過10%時可能為</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">a、CT二次接線錯誤</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">b、CT變比不對</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">c、缺相或錯相</span></span></p><p style="margin-left:49px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">一般現(xiàn)場工作時可*行綜合誤差的測量，綜合誤差在</span><span style="font-family:宋體">±3%時系統(tǒng)基本沒有問題，當(dāng)綜合誤差較大時可分別進行CT誤差、電表誤差的校驗及線路診斷。</span></span></p><h2 style="margin-top:0;margin-bottom:0;margin-left:28px;line-height:29px"><span style=";font-family:黑體;font-weight:normal;font-size:16px"><span style="font-family:黑體">3、三相四線制線路常見問題</span></span></h2><p style="margin-left:56px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑴缺一相</span></span></p><p style="margin-left:49px;text-indent:32px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">缺某相電壓、電流時，可從分析儀的</span><span style="font-family:宋體">“測量參量1"或“矢量圖"兩功能項直接看出。缺相原因一般是計量裝置的三組元件中的某一組元件出現(xiàn)故障或接線斷開。具體可能原因如下：</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">a、電能表電壓線圈一相不通（線圈斷路、雷擊、電壓掛鉤與螺釘未接觸）</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">b、計量回路一次測某相保險熔斷或接觸不良</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">c、電壓二次回路一相線路斷路（保險熔斷或接觸不良）</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">d、電表或CT本身一相電流線圈或CT二次繞組開路（線圈燒斷、電能表接線端或二次接線端接觸不上）</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">e、二次電流回路中某相電流開路</span></span></p><p style="margin-left:56px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑵缺兩相</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">與缺一相的原因和情況基本類似。</span></span></p><p style="margin-left:56px;line-height:29px"><span style=";font-family:宋體;font-size:16px"> </span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img62.chem17.com/9/20220929/638000328557181935696.png" title="7}6EY`JXMM(BPBS3~`0)XOO.png" alt="7}6EY`JXMM(BPBS3~`0)XOO.png"/></p><p style="margin-left:56px;line-height:29px"><span style=";font-family:宋體;font-size:16px"></span><br/></p><p style="margin-left:56px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑶電流一相或幾相反向</span></span></p><p style="margin-left:77px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">電流反向可從</span> <span style="font-family:宋體">“矢量"功能中看出，例如上圖所示的情況為A相電流反向，反向后角度與正常應(yīng)相差180°，</span></span></p><p style="margin-left:56px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">造成此種現(xiàn)象的原因為：</span></span></p><p style="margin-left:84px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">a、A相CT 的K1、K2接反</span></span></p><p style="margin-left:84px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">b、A相CT電纜穿出方向反向</span></span></p><p style="margin-left:84px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">c、CT上K1、K2與實際標(biāo)注不符</span></span></p><p style="margin-left:56px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑷電壓與電流錯相</span></span></p><p style="margin-left:61px;text-indent:32px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">一相或幾相電壓和電流不對應(yīng)，使實際角度與正常差</span><span style="font-family:宋體">120°或240°，如下圖（圖二十六）</span></span></p><p style="margin-left:21px;text-indent:32px;line-height:29px"><span style=";font-family:宋體;font-size:16px"> </span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img67.chem17.com/9/20220929/638000327692062491759.png" width="537" height="120" title="TSV{~O1E72RE66AJZ~K$KGM.png" alt="TSV{~O1E72RE66AJZ~K$KGM.png"/></p><p style="text-align:center;line-height:150%"><span style=";font-family:Calibri;line-height:150%;font-size:19px"> </span><br/></p><p style="text-align:center;line-height:150%"><span style=";font-family:宋體;line-height:150%;font-size:16px"><span style="font-family:宋體">圖二十六</span></span></p><p style="text-align:center;line-height:150%"><span style=";font-family:Calibri;line-height:150%;font-size:14px"></span></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img64.chem17.com/9/20220929/638000327891751295734.png" title="XF6]9OG{BHZMCKM.png" alt="XF6]9OG{BHZMCKM.png"/></p><p style="text-align:center;line-height:150%"><span style=";font-family:Calibri;line-height:150%;font-size:14px"> </span><br/></p><h2 style="margin-top:0;margin-bottom:0;line-height:29px"><span style=";font-family:黑體;font-weight:normal;font-size:16px"><span style="font-family:黑體"><br/></span></span></h2><h2 style="margin-top:0;margin-bottom:0;line-height:29px"><span style=";font-family:黑體;font-weight:normal;font-size:16px"><span style="font-family:黑體">4、三相三線制線路分析方法</span></span></h2><p style="text-indent:56px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">三相三線制線路接線正確時矢</span></span></p><p style="text-indent:24px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">量圖如右圖，錯誤接線的分析方法參</span></span></p><p style="text-indent:24px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">照三相四線制線路。</span></span></p><h2 style="margin-top:0;margin-bottom:0;line-height:29px"><span style=";font-family:黑體;font-weight:normal;font-size:16px"><span style="font-family:黑體">5、單相表測量</span></span></h2><p style="text-indent:28px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">單相表測量時可用儀器的任意一相進行（通常情況用</span><span style="font-family:宋體">A相），情況比較簡單，此處不做具體講解。</span></span></p><h2 style="margin-top:0;margin-bottom:0;line-height:29px"><span style=";font-family:黑體;font-weight:normal;font-size:16px"><span style="font-family:黑體">6、CT常見故障及原因</span></span></h2><p style="margin-left:28px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑴故意更換</span><span style="font-family:Calibri">CT</span><span style="font-family:宋體">銘牌</span></span></p><p style="margin-left:28px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑵</span><span style="font-family:Calibri">CT</span><span style="font-family:宋體">精度不合格</span></span></p><p style="margin-left:28px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">⑶</span><span style="font-family:Calibri">CT</span><span style="font-family:宋體">損壞</span></span></p><h2 style="margin-top:0;margin-bottom:0;line-height:29px"><span style=";font-family:黑體;font-weight:normal;font-size:16px"><span style="font-family:黑體">7、電能表故障</span></span></h2><p style="text-indent:32px;line-height:29px"><span style=";font-family:宋體;font-size:16px"><span style="font-family:宋體">如果接線正確但誤差還是很大，則應(yīng)調(diào)整或更換電表。</span></span></p><p><span style=";font-family:Calibri;font-size:19px"><br clear="all" style="page-break-before:always"/></span></p><p><br/></p> <div id="iqaqewgi6e" class="clear"></div> </div> <div id="iqaqewgi6e" class="article"> <p>上一篇：<a href="/Article-3153161.html">變壓器空載試驗的目的、試驗方法</a></p> <p>下一篇：<a href="/Article-3149208.html">單相手持式多功能用電檢查儀使用方法</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> <ul> <li><a href="/ParentList-1388067.html" onmouseover="showsubmenu('大電流發(fā)生器')" class="yj">大電流發(fā)生器</a> <div class="iqaqewgi6e" 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<li><a href="/SonList-1341762.html">> OT-8898紅外線測溫儀</a></li> <li><a href="/SonList-1324120.html">> 噪聲儀</a></li> <li><a href="/SonList-1324119.html">> 測厚儀</a></li> <li><a href="/SonList-1324118.html">> 軸承故障測試儀</a></li> <li><a href="/SonList-1324117.html">> 測振儀</a></li> <li><a href="/SonList-1324116.html">> 轉(zhuǎn)速表</a></li> <li><a href="/SonList-1324115.html">> 測溫儀</a></li> </ul> </div> </li> <li><a href="/ParentList-1349465.html" onmouseover="showsubmenu('避雷器及絕緣子測試儀器')" class="yj">避雷器及絕緣子測試儀器</a> <div class="iqaqewgi6e" id="submenu_避雷器及絕緣子測試儀器" style="display:none"> <ul> <li><a href="/SonList-1349472.html">> 無線絕緣子測試儀</a></li> <li><a href="/SonList-1349471.html">> 避雷器放電計數(shù)器校驗儀</a></li> <li><a href="/SonList-1349470.html">> 氧化鋅避雷器在線測試儀</a></li> <li><a href="/SonList-1349469.html">> 絕緣子串電壓分布測量表</a></li> <li><a href="/SonList-1349468.html">> 絕緣子絕緣電阻測試儀</a></li> <li><a href="/SonList-1349467.html">> 氧化鋅避雷器特性測試儀</a></li> <li><a href="/SonList-1349466.html">> 氧化鋅避雷器檢測儀</a></li> </ul> 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