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font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: 微軟雅黑, "Microsoft YaHei"; vertical-align: baseline; box-sizing: border-box;">　三相繼電保護(hù)測(cè)試儀可以做差動(dòng)保護(hù)啊，具有豐富的軟件測(cè)試功能: 電壓/電流、時(shí)間測(cè)試、頻率/滑差測(cè)試、諧波疊加、故障再現(xiàn)、狀態(tài)序列、全組測(cè)試、線路保護(hù)定值校準(zhǔn)、阻抗/方向繼電器、功率振蕩、差動(dòng)保護(hù)、自動(dòng)準(zhǔn)同期、常規(guī)繼電器測(cè)試、反時(shí)限繼電器特性、測(cè)量?jī)x表等。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="margin: 0px; padding: 0px; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: 微軟雅黑, "Microsoft YaHei"; vertical-align: baseline; box-sizing: border-box;">　　在測(cè)試前，待合并側(cè)的電壓不滿足相同周期(低于或高于系統(tǒng)側(cè)的電壓)的條件，如果頻率滿足條件但不相等，則兩側(cè)的角差能量可以周期性地開(kāi)啟和關(guān)閉。同步裝置的提升信號(hào)和抑制信號(hào)在測(cè)試過(guò)程中連接到測(cè)試儀 A 和 a，由于電壓不滿足同一周期條件，裝置不發(fā)出閉合信號(hào)，而是周期性地發(fā)出“上(下)”信號(hào)。此時(shí)，測(cè)試儀將能夠測(cè)量在這種壓差下穩(wěn)壓的脈沖寬度和周期，穩(wěn)壓的脈沖寬度與壓差成線性關(guān)系。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: center;"><img alt="" src="https://img77.chem17.com/9/20210324/637521731704823074529.png" style="width: 498px; height: 357px;" /></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="margin: 0px; padding: 0px; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: 微軟雅黑, "Microsoft YaHei"; vertical-align: baseline; box-sizing: border-box;">　　調(diào)頻脈寬試驗(yàn)研究方法：</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="margin: 0px; padding: 0px; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: 微軟雅黑, "Microsoft YaHei"; vertical-align: baseline; box-sizing: border-box;">　　在測(cè)試前，將兩側(cè)電壓設(shè)定為滿足同一周期條件，但頻率不滿足同一周期條件(低于或高于待合并側(cè)頻率)。同步裝置的上下頻率信號(hào)連接到測(cè)試儀，并在測(cè)試中切換到 B和 b，由于頻率不滿足同一周期的條件，裝置不發(fā)送信號(hào)，而是周期性地發(fā)送“上(下)頻率”信號(hào)，此時(shí)測(cè)試儀將能夠測(cè)量在這個(gè)頻率差下的頻率調(diào)制脈沖寬度和頻率調(diào)制周期。一般而言，頻率偏移量與頻率調(diào)制脈沖寬度之間存在線性關(guān)系。</span></p><p style="margin: 18px 0px 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 2em; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; text-align: justify;"><span style="margin: 0px; padding: 0px; border: 0px; font-style: inherit; font-variant: inherit; font-weight: inherit; font-stretch: inherit; font-size: 16px; line-height: inherit; font-family: 微軟雅黑, "Microsoft YaHei"; vertical-align: baseline; box-sizing: border-box;">　　三相繼電保護(hù)測(cè)試儀的調(diào)壓脈沖寬度測(cè)試和調(diào)頻脈沖寬度測(cè)試是較為傳統(tǒng)的高壓功率實(shí)驗(yàn)。電力工人需要在實(shí)踐中掌握它們。在測(cè)試期間，您需要閱讀產(chǎn)品說(shuō)明并嚴(yán)格按照說(shuō)明使用。</span></p> <div id="iqaqewgi6e" class="clear"></div> </div> <div id="iqaqewgi6e" class="article"> <p>上一篇：<a href="/Article-2598831.html">如何正確安裝及調(diào)試電力變壓器</a></p> <p>下一篇：<a href="/Article-2588814.html">單相、三相、六相繼電保護(hù)測(cè)試儀有哪些區(qū)別?</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(lèi)</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" id="submenu_大電流發(fā)生器" style="display:none"> <ul> </ul> </div> </li> <li><a href="/ParentList-1384344.html" onmouseover="showsubmenu('LCR數(shù)字電橋')" 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