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HT-PDF-3000直流系統接地故障測試儀

發布日期：2025-01-03
訪問次數：889
地址：上海寶山

HT-PDF-3000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各种类型的接地故障均能迅速地查找出接地点准确率达到100％。

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HT-PDF-3000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。

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各种类型的接地故障均能迅速地查找出接地点准确率达到100％。

HT-PDF-3000直流系統接地故障測試儀

産品特點

1、使用簡單：本儀器只需打開電源開關就可直接使用，無需別的按鍵操作。
2、安全可靠：直流系統不斷電查找接地點，不影響系統正常工作。
3、適用電壓等級多：直流系統220V、110V、48V、24V都可以使用。
4、適用範圍廣：任何類型電廠、變電站、煤礦、化工廠等供電部門都可使用。
5、攜帶方便：信號接收器自帶電池，無需外接電源，可以隨身攜帶到任何地方查找接地點。
6、抗幹擾能力強：克服了系統分布電容的影響。
7、智能化充電管理：減少充電時間，延長電池壽命。

技術參數

信號發生器	輸出信號頻率：2.5Hz
	信號空載輸出電壓：±20V±5%
	信號電壓幅值誤差：＜5%
	信號短路輸出電流：≤80mA
	輸出口抗沖擊能力：400V直流沖擊
信號接收器	信號電流檢測靈敏度：0.5mA；阻抗40kΩ
信號接收器	大輸出電流：2.5mA；顯示：數字0~19

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