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LH-ZJD直流接地故障探測儀

發布日期：2025-01-04
訪問次數：1142
地址：上海寶山

LH-ZJD直流接地故障探測儀：重點解決了直流系統間接接地、非金屬接地、環路接地、正負同時接地、正負平衡接地、多點接地等疑難故障的准確檢測，並且還能准確的顯示系統電壓、對地電壓、接地阻值，真正解決了運行及檢修人員的後顧之憂。

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LH-ZJD直流接地故障探測儀

産品概述：

直流系統接地是一種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，系統再有一點接地或絕緣不良，可能引起保護誤動；直流系統負極接地，系統再有一點接地或絕緣不良，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。

LH-ZJD直流接地故障探測儀重點解決了直流系統間接接地、非金屬接地、環路接地、正負同時接地、正負平衡接地、多點接地等疑難故障的准確檢測，並且還能准確的顯示系統電壓、對地電壓、接地阻值，真正解決了運行及檢修人員的後顧之憂。

産品特點
1.高精度采樣鉗表
2.接地點方向顯示
3.具有絕緣指數顯示功能
4.具有波形顯示功能
5.操作簡單，使用方便、快速
6.信號發生器與檢測器不受距離限制
7.運行安全、可靠

技術參數
1. 可检测接地电阻范围
系统电压为220V时： 0 -500KΩ
系统电压为110V时： 0 -250KΩ
系统电压为48V时： 0 -50KΩ
系统电压为24V时： 0 -10KΩ
2. 检测信号功率 ≤ 0.2W(信号发生器输出功率)
3. 抗对地分布电容值：
对地电容单支路≤8uF，系统对地总电容≤100uF；
4. 适用直流系统电压：
220V±10%，110V±10%，48V±10%，24V±10%，或用户提出其它电压等级；
5. 环境温度：-35℃～+55℃；
6. 相对湿度：≤95%

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