描述

測量電機(jī)絕緣主要分兩種，一種是繞組對地絕緣，還有就是繞組相間絕緣。都是使用兆歐表（搖表）測量。

另外繞組層間（匝間）絕緣也是一種，但要使用萬用表測量。

測量繞組對地絕緣時，要把電機(jī)的接線全都拆掉。先檢查搖表的好壞，做開路、短路試驗。搖表沒問題后，用搖表一個表筆接電機(jī)外殼，轉(zhuǎn)動搖把，達(dá)到120轉(zhuǎn)/分，此時另一個表筆接繞組的一端，當(dāng)讀數(shù)穩(wěn)定時，就是這個繞組的對地絕緣阻值。三個繞組要分別測量三次，有的電機(jī)是已經(jīng)把星型連接接好了的，只引出三根出線，那就只需搖測一次就行。

相間絕緣就是繞組之間的絕緣，把表筆先接在一個繞組上，然后轉(zhuǎn)表、測量另一個繞組與它的阻值。最低要求是每伏一K，即；1K/V380V的電機(jī)是380K。一般要大于0.5兆。

層間絕緣使用萬用表測量，就是通過比較三個繞組的直流電阻值來判斷繞組是否存在層間（匝間）短路的故障。當(dāng)測量后有一組數(shù)值明顯偏小時，就懷疑這組層間有問題了。

歐美品牌停產(chǎn)的，常用的“PLC”備品備件

我司產(chǎn)品應(yīng)用于以下領(lǐng)域：

1,《發(fā)電廠DCS監(jiān)控系統(tǒng)》

2,《智能平鋼化爐系統(tǒng)制造》

3,《PLC可編程輸送控制系統(tǒng)》

4,《DCS集散控制系統(tǒng)》
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5,《智能型消防供水控制系統(tǒng)》

6,《化工廠藥液恒流量計算機(jī)控制系統(tǒng)》

7,《電氣控制系統(tǒng)》造紙,印染生產(chǎn)線,變電站綜合自動化控制系列

本特利，英維思，伍德沃德，福克斯波羅、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂，ACSO，力士樂等各大品牌的DCS系統(tǒng)配件，機(jī)器人系統(tǒng)配件，大型伺服系統(tǒng)備件。

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