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FA-CZJ-2便携式直流系统接地故障定位儀

發布日期：2025-01-04
訪問次數：1068
地址：上海寶山

FA-CZJ-2便携式直流系统接地故障定位儀：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％。

FA-CZJ-2便携式直流系统接地故障定位儀

【産品概述】

直流系统接地故障测试仪是新一代直流接地故障测试仪。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；采用了优秀的算法和的模糊控制计算理论，将被检测绝缘支路的优势程度以数值的形式表示出来，充分体现了人工智能的性；对于接地点位置的断定，它们更是拥有准确的判断力，每次检测都能够指出接地点位置及方向。本装置以系统安全为首要前提，按行业标准的zui高要求，以可靠的低频信号方式进行检测，并在现场进行了大量的实际应用，对系统无任何影响。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。
直流系统接地故障测试仪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％。本仪器与国内外同类型的仪器相比具有以下优点：
1、使用簡單。本儀器只需按下電源開關（ON）可直接使用,無需別的按鍵操作。
2、安全可靠。本儀器無需停浮充電機及其它一切電源，對直流系統沒有任何影響。
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，信號接收器自帶充電電池，無需外接電源，可以隨身攜帶到任何地方查找接地點。
6、直流系統不斷電查找接地點，不影響系統正常工作。
7、抗幹擾能力強，克服了系統分布電容的影響。
8、智能化充電管理，減少充電時間，延長電池壽命。

FA-CZJ-2便携式直流系统接地故障定位儀

【工作原理】
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。该仪器在原理上引入一种全新的探测方法----波形分析法，其主要特点和优点：检测灵敏度高、排查系统分布电容能力强、不断电查找、不影响系统正常运行、抗干扰能力强、安全可靠等。
       波形分析法，就是利用在直流母线与地之间加入一种特定的周期性信号，通过钳式探头探测各支路电流，分析、计算电流信号基波与谐波的相位及相位差，进而判断是否存在接地故障及接地故障点。
        装置的构成：本装置由信号发生器、信号接收器和信号采集器（卡钳）三部分组成。在查找直流系统故障时，三者须同时配合使用。
1、信號發生器的原理：本信號發生器不采用傳統的LC或RC的振蕩電路，而采用全新的數字技術，因而具有信號穩定的特點。該信號發生器由單片機、A/D轉換電路、信號放大濾波電路、功率放大及隔直電路、輸出反饋及保護等部分組成。
【技術指標】
1、信號發生器
      信号空载输出电压：±5V,2.5HZ
    信号电压幅值误差：<5%
     输出口抗冲击能力：400V直流冲击
    电源电压：AC220V±10%   50Hz±5%
      输入保险：200mA
      zui大功率：2W
    体    积：275×225×100mm
2、信號接收器
      直流系统母线电压范围：220V DC、110V DC、48V DC、24V DC
      电流钳：70mm
      接收器显示：液晶屏显示。
    接地电阻检测范围：0 —60K Ω，分辩率1K Ω ,精度10% ± 2 K Ω。（0-20K精度1%±1K）。
    接地电容检测范围：1-60 μ F，分辩率1 μ F。
    功耗小于2W。
      工作温度：-20至+ 55°C。
      电    源：一节9V电池。
      重    量：0.5公斤
3、整機
      检测zui大接地电阻：60KΩ
    检测zui大电容：60μF
    接地电阻测量精度:0-30KΩ 误差≤0.5KΩ±1K
    接地电容检测范围：0-60uF
    接地电容测量精度：0-60uF 误差≤1uF
【裝箱清單】
1．信號發生器1台
2．信號接收器1台
3．卡鉗1支
4．信號輸出引線1套
5．電源線1根
6．使用說明書1本
7．合格證1份
【産品別名】
直流系统接地故障测试仪、直流系统接地故障定位儀/查找仪

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