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HW-PDF直流系統接地故障測試儀

發布日期：2025-01-03
訪問次數：779
地址：上海寶山

HW-PDF直流系統接地故障測試儀：该直流系統接地故障測試儀用于在不断电情况下查找发电厂、变电站直流系统接地点的准确位置。

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HW-PDF直流系統接地故障測試儀

産品介紹

发电厂、变电站的直流系统为控制、保护、信号和自动装置提供电源，直流系统的安全连续运行对保证发供电有着极大的重要性。由于直流系统为浮空制的不接地系统，如果发生两点接地，就可能引起上述装置误动、拒动，从而造成重大事故。因此当发生一点接地时，就应在保证直流系统正常供电的同时准确迅速地探测出接地点，排除接地故障，从而避免两点接地可能带来的危害。
　　该直流系統接地故障測試儀用于在不断电情况下查找发电厂、变电站直流系统接地点的准确位置。

HW-PDF直流系統接地故障測試儀

産品特性

1.系統不斷電查找接地點，不影響系統正常工作.
2.檢測靈敏度高.
3.抗幹擾能力強，克服了系統分布電容和濾波電容的影響.
4.智能化程度高，人機界面友好.
5.安全可靠,操作簡單,易于攜帶.

技術參數

1.信號發生器
　输出信号频率 2.5Hz±1%
　低频信号空载输出电压 ±15V±5%
　低频信号电压幅值误差＜5%
　低频信号短路输出电流 ≤80mA
　输出口抗冲击能力 400V直流冲击
　电源电压 AC220V±10%
　电源频率 50Hz±5%
　大功率 2W
　体积 275×225×100mm
2.信號接收器
　信号电流检测灵敏度： 0.5mA
　电源： 4.8V可充电池组
　抗工频干扰： 5A
　体积： 195×100×30mm

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