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id="1571n5fppxr7" class="inside_rnewcon"><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">工頻驗電信號發(fā)生器又叫工頻驗電器現(xiàn)場校驗儀。</span><br style="margin: 0px; padding: 0px;" /><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">作用：</span><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">高壓聲光驗電器在驗電前，應(yīng)先在有電設(shè)備上進行試驗，先確證驗電器良好，再去確認帶電體是否帶電。如無法在有電設(shè)備上進行試驗時可用工頻驗電信號發(fā)生器確證驗電器是否良好。驗電器驗電前不進行校驗，會對安全作業(yè)帶來極大的隱患，為了杜絕意外的發(fā)生，驗電器使用前應(yīng)*行檢驗。</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><img alt="" src="http://img48.chem17.com/9/20180908/636719930610276999431.jpg" style="height:541px; width:292px" /><br style="margin: 0px; padding: 0px;" /><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px"> 目前一般檢驗驗電器好壞的驗電信號發(fā)生器為高頻電子升壓式信號發(fā)生器，由于高頻和工頻存在很大區(qū)別，因此普通驗電信號發(fā)生器不能*確定驗電器性能的好壞，即使檢驗時正常，驗電器也可能是壞的，不能正常使用。針對上述問題，應(yīng)眾多電力部門的要求，我廠研制了工頻驗電信號發(fā)生器，*杜絕了驗電器檢驗失靈的問題。</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">二．工頻驗電信號發(fā)生器的工作原理：</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px"> 工頻信號發(fā)生器有交流供電式和自身供電式兩種類型。</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px"> 交流供電式工頻信號發(fā)生器適用于有市電的場合，經(jīng)過調(diào)壓器，升壓變壓器將工頻電升壓到驗電器啟動電壓，用以檢驗驗電器性能好壞。</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px"> 自身供電式工頻信號發(fā)生器就是發(fā)生器本身自帶可充電蓄電池，經(jīng)過工頻逆變器將直流變換成工頻電，然后經(jīng)升壓器升壓至驗電器啟動電壓，用以檢驗驗電器性能好壞。</span><br style="margin: 0px; padding: 0px;" /><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">三．工頻驗電信號發(fā)生器的性能參數(shù)</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">1.10KV型輸出電壓：工頻0-4KV(10KV啟動電壓1.5-4KV）</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">2.6-35KV型輸出電壓：工頻0-12KV（35KV啟動電壓5.25-14KV）</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">3.6-110KV型輸出電壓：工頻0-35KV（110KV啟動電壓16.5-44KV）</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">4.6-220KV型輸出電壓：工頻0-60KV（220KV啟動電壓33-88KV）</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">注：一般驗電器啟動電壓控制范圍在（0.15-0.4）倍額定電壓。</span><br style="margin: 0px; padding: 0px;" /><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">四．工頻驗電信號發(fā)生器的使用說明<img alt="" src="http://img47.chem17.com/9/20180908/636719930925399019218.jpg" style="height:473px; width:587px" /></span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">使用時接通電源，調(diào)壓器調(diào)到零位，將電源開關(guān)打開，一個人將驗電器探頭接觸發(fā)生器高壓輸出，另一人緩緩升高輸出電壓，至驗電器聲光報警，觀察驗電器報警時啟動電壓是否在規(guī)定范圍內(nèi)。工頻驗電信號發(fā)生器使用后調(diào)壓器調(diào)到零位，關(guān)閉電源。自帶電瓶式如果出現(xiàn)無高壓現(xiàn)象，應(yīng)首先檢查電瓶是否老化。</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">注意：因為工頻驗電信號發(fā)生器的內(nèi)部加了限流元件，因此高壓輸出電流很小，對人體沒有傷害。但為了安全起見，身體部分不要接觸工頻驗電信號發(fā)生器的高壓輸出端！</span><br style="margin: 0px; padding: 0px;" /><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px">五.工頻驗電信號發(fā)生器的維護及注意事項</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px"> 1. 工頻驗電信號發(fā)生器的在運輸和使用中，應(yīng)遠離高溫、高濕和腐蝕性氣體。劇烈的震動有可能會損壞設(shè)備。</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px"> 2. 工頻驗電信號發(fā)生器在運行過程中，發(fā)現(xiàn)異常立即停止運行。</span></p><p style="padding: 0px; font-family: 微軟雅黑;"><span style="font-family:microsoft yahei; font-size:16px; line-height:2; margin:0px; padding:0px"> 3. 工頻驗電信號發(fā)生器長期存放后再次使用時，應(yīng)對外觀是否有損傷和污物進行檢查。</span></p></div> <div id="1571n5fppxr7" class="inside_newsthree"> <p 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