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電阻

電流互感器絕緣電阻測量方法

發(fā)布日期:2022-10-11 點擊率:2160 品牌:組態(tài)王_Kingview

1、繞組的絕緣電阻測量使用儀器:2500V絕緣電阻測量儀(又稱絕緣兆歐表)。

    測量要求:測量一次繞組和各二次繞組的絕緣電阻。測量時各非被試繞組、底座、外殼均應(yīng)接地。

    試驗結(jié)果判斷依據(jù):繞組絕緣電阻不應(yīng)低于出廠值或初始值的60%。

    注意事項:試驗時應(yīng)記錄環(huán)境濕度。測量二次繞組絕緣電阻的時間應(yīng)持續(xù)60s,以替代二次繞組交流耐壓試驗。

2、鐵芯夾緊螺栓(可接觸到的)絕緣電阻測量使用儀器:2500V絕緣電阻測量儀(又稱絕緣兆歐表,包含絕緣搖表)。

    試驗結(jié)果判斷依據(jù):一般不得低于10MΩ。

    注意事項:試驗時應(yīng)記錄環(huán)境濕度。

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