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<div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> <span style="color: rgb(0, 0, 0);"><strong><a href="http:///SonList-514898.html" target="_blank"><span style="color: rgb(0, 0, 0);">微機(jī)保護(hù)綜合測試儀</span></a></strong></span>的日常巡檢維護(hù)：</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 1.檢查微機(jī)保護(hù)裝置外觀及模塊背板有無異常，液晶顯示是否正常，接線是否有松動或脫落，有無發(fā)熱、異味、冒煙等異?，F(xiàn)象。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 2.檢查微機(jī)保護(hù)裝置的運(yùn)行狀態(tài)、運(yùn)行監(jiān)視情況，如采集的電壓、電流數(shù)據(jù)是否正確，三相是否平衡；裝置的開關(guān)狀態(tài)輸入量顯示與實(shí)際情況是否相符，如儲能機(jī)構(gòu)位置、斷路器分合位、接地刀閘分合位、操作把手遠(yuǎn)近控位置等是否顯示正確。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 3.檢查微機(jī)保護(hù)裝置屏上各操作把手、旋轉(zhuǎn)開關(guān)的位置是否正確；微機(jī)保護(hù)裝置有無異常信號,如裝置是否發(fā)跳閘或告警信號，如有故障信號要及時(shí)查明原因。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 4.對微機(jī)保護(hù)裝置定值進(jìn)行核對，看是否與所下定值相符。檢查整定電流、電壓及時(shí)限值的輸入是否正確，保護(hù)硬壓板、軟壓板的投退是否滿足定值的邏輯關(guān)系等。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 5.對微機(jī)保護(hù)裝置的動作報(bào)告記錄進(jìn)行查看。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> </span><strong style="font-size: 16px;">微機(jī)保護(hù)綜合測試儀</strong><span style="font-size: 16px;">的定期校驗(yàn)：</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 為保證微機(jī)保護(hù)裝置可靠動作，應(yīng)對繼電保護(hù)裝置及二次回路進(jìn)行定期的停電校驗(yàn)，一般校驗(yàn)周期為一年，主要做以下內(nèi)容：</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 1.對二次回路絕緣電阻的測試。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 2.用繼電保護(hù)測試儀輸入標(biāo)準(zhǔn)的電流、電壓模擬量，校驗(yàn)微機(jī)保護(hù)裝置的電流、電壓采樣精度及功率角是否正確。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 3.校驗(yàn)微機(jī)保護(hù)裝置的就地或遠(yuǎn)控操作按鍵是否正常工作。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 4.根據(jù)保護(hù)定值單，用繼電保護(hù)測試儀輸入模擬動作值進(jìn)行開關(guān)二次整組保護(hù)動作試驗(yàn)。檢驗(yàn)裝置的動作可靠性及定值保護(hù)動作邏輯關(guān)系是否滿足定值單要求。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> </span><strong style="font-size: 16px;">微機(jī)保護(hù)綜合測試儀</strong><span style="font-size: 16px;">常見故障：</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 1.裝置面板按鍵失靈、顯示屏顯示模糊、暗淡或黑屏不顯示、模塊插件損壞、顯示數(shù)據(jù)不正確、裝置分合開關(guān)不正確等。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 2.定值問題。主要包括：①因未向保護(hù)計(jì)算人員提供準(zhǔn)確的計(jì)算參數(shù)及圖紙資料，導(dǎo)致整定計(jì)算差錯(cuò)。②看錯(cuò)數(shù)值，TA、TV變比計(jì)算錯(cuò)誤。③在微機(jī)保護(hù)菜單中找錯(cuò)位置，定值區(qū)使用、保護(hù)壓板投退等人為造成的錯(cuò)誤。</span></div><div><span style="font-size: 16px;"><br /></span></div><div><span style="font-size: 16px;"> 3.保護(hù)動作問題。①故障發(fā)生時(shí)，保護(hù)裝置不動作或動作不可靠，無法迅速切除故障。②*發(fā)生時(shí)，保護(hù)裝置誤動作等情況。</span></div> <div class="eqckvv83f" id="news_sx"><li id="eqckvv83f" class="sx_left">上一篇：<a href="/Article-371812.html">數(shù)字絕緣電阻測試儀介紹</a> <br />下一篇：<a href="/Article-368948.html">組合式在線閥門研磨機(jī)的特點(diǎn)有哪些？</a></li></div> </div> </div> </div> </div> <script type="text/javascript"> $(document).ready(function(e) { $(".about_con img").each(function(index, element) { $(this).attr('style', 'max-width:100%'); }); }); </script> <div id="eqckvv83f" class="clear"></div>  <div id="eqckvv83f" class="ly_foot"> <div id="eqckvv83f" class="ft_main"> <div id="eqckvv83f" class="ft_contact"> <em>Contact Us</em> <ul> <li><img 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