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SZJC-220C直流接地故障測試儀

發布日期：2025-01-04
訪問次數：889
地址：上海寶山

SZJC-220C直流接地故障測試儀：是一种易发生且对电力系统危害较大的故障。直流系统正极接地，可能造成继电保护误动，因为跳闸线圈接直流电源负极，系统再有一点接地或绝缘不良，可能引起保护误动。

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SZJC-220C直流接地故障測試儀

産品介紹：

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。

直流接地故障检测仪是新一代直流接地故障測試儀。它能够适用于任何电压等级的直流系统，配备了高精度的检测钳表，通过对多种信号的高效处理大大提高了检测范围与抗干扰能力；采用了*的算法和*的模糊控制计算理论，将被检测绝缘支路的绝缘状况以数值的形式表示出来，充分体现了人工智能的*性；对于直流系统绝缘下降或发生接地位置的断定，具有准确的判断力。

直流接地故障檢測儀不僅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。

SZJC-220C直流接地故障檢測儀由信號發生器和信號采集接收器二部分組成，信號發生器與直流系統正負母線和地相連，當直流系統出現接地故障後，它會自動産生一個低頻小信號，故障檢測器與鉗表獨立于信號發生器，故障檢測器與鉗表之間使用連接線相連，通過對待檢測支路漏電流信號的采集、分析，從而判斷出該支路的絕緣情況。　　　

SZJC-220C直流接地故障測試儀

功能特點：

1.定位查找金屬接地、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；

2.測量顯示直流系統電壓，對地電壓、接地阻值；

3.高精度采樣鉗表，對間接接地，高阻接地點定位准確可靠；

4.高效快速的處理複雜支路或環路中接地點的定位；

5.具有絕緣指數顯示功能；

6.具有波形顯示功能；

7.操作簡單，使用方便，快速；

8.信號發生器與檢測器不受距離限制；

9.運行安全，可靠。

主要技術參數：

1. 直流电压检测范围：24V 48V 110V 220V

2. 接地电阻范围：　 0-10K 0-50K 0-100K 0-200K

3. 分布电容：支路对地电容≤8μ F　系统对地总电容≤100μ F

4.信號發生器功率：0.2W

5.环境温度 -35℃-+55℃

6.相对温度 ≤95％

7.外形尺寸 460×240×120mm

8.重量　　 2.2kg

上一篇：SZJC-220C直流系统接地故障測試儀

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