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GX1600直流接地故障查找儀

發布日期：2025-01-04
訪問次數：1226
地址：上海寶山

GX1600直流接地故障查找儀：電力直流系統接地是易發生且對電力系統危害較大的故障。直流系統正極接地，可能造成繼電保護誤動，因爲跳閘線圈接直流電源負極，可能引起保護誤動；直流系統負極接地，可將跳閘回路或合閘回路短路，造成保護拒動；此時系統發生故障，保護的拒動必然導致系統事故擴大，同時還可能燒壞繼電器的觸點或燒保險。

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GX1600直流接地故障查找儀

産品介紹

電力直流系統接地是易發生且對電力系統危害較大的故障。直流系統正極接地，可能造成繼電保護誤動，因爲跳閘線圈接直流電源負極，可能引起保護誤動；直流系統負極接地，可將跳閘回路或合閘回路短路，造成保護拒動；此時系統發生故障，保護的拒動必然導致系統事故擴大，同時還可能燒壞繼電器的觸點或燒保險。

GX1600直流接地故障查找儀

産品特點：

★信号发生器产生1.0 mA～5.0mA 的信号电流，且zui大功率小于0.2W；适用于各类直流系统，并在现场进行了大量的实际应用，对系统无任何影响；对直流系统的安全运行、可靠运行提供了保障。

★該裝置具有接地點方向顯示，可以高效快速的處理複雜支路或環路中接地點的定位。

★具有絕緣指數顯示功能。絕緣指數是爲分析待測支路絕緣程度而引入的說法，以0～100的數字形式來反映被測支路的絕緣程度，數字越大表示絕緣越差，該指數結合高精度鉗表非常有利于多點接地與高阻接地的檢測。

★具有波形顯示功能。所謂波形顯示，即在檢測過程中檢測器所搜索到的信號發生器的波形,其在查找接地過程中有非常重要的作用，合理利用檢測器中的波形顯示，可以大幅度的提升設備的檢測範圍與檢測精度以及判斷的准確度。

★信號發生器與檢測器不受距離限制。在複雜的直流系統中，信號發生器接入點可能與接地查找點有著很長的一段距離，不過檢測器並不受此距離的限制，可以在同一個系統中的任何一點進行查找。

★操作簡單，使用方便、快速。使用時只需將鉗表鉗住待測支路，按一下工作按鍵，3～6S即可完成一條支路的檢測。

技術參數

1.可檢測接地電阻範圍

系統電壓爲220V時：　0～500KΩ

系統電壓爲110V時：　0～250KΩ

系统电压为48V时：　 0～50KΩ

系统电压为24V时：　 0～10KΩ

3.检测信号功率：≤ 0.2W（信号发生器输出功率）

4.抗對地分布電容值：對地電容單支路≤8uF，系統對地總電容≤100uF；

5.適用直流系統電壓：

220V±10%，110V±10%，48V±10%，24V±10%，或用戶提出其它電壓等級；

6.環境溫度：-35℃～+55℃；

7.相對濕度：≤95%

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