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JD900便携式直流接地故障定位儀

發布日期：2025-01-04
訪問次數：1000
地址：上海寶山

JD900便携式直流接地故障定位儀：能够适用于任何电压等级的直流系统并能快速、准确地实现包括环路在内的接地检测。

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JD900便携式直流接地故障定位儀

研發背景

电力系统中的直流系统接地故障是一种易发生且对电力系统危害性较大的故障。无论是正极接地或者负极接地，在两点接地的情况下，都可能造成保护误动或者保护拒动，危害一次系统正常运行。由于直流系统的复杂性和动态性，直流接地故障往往难以定位，NR-JC型直流系统接地故障定位装置能够适用于任何电压等级的直流系统并能快速、准确地实现包括环路在内的接地检测。

JD900便携式直流接地故障定位儀

應用範圍

主要用于定位电力、通信、矿路、铁路、金融等系统中的直流系统接地故障的准确接地点。

解決問題

重点解决了直流系统间接接地、非金属接地、环路接地、正负同时接地、正负平衡接地、多点接地等接地故障

應用原理

装置的构成:本装置由信号发生器、故障检测器和信号采集器(钳表)三部分组成。

便携式直流接地故障定位儀

功能特點

.新型微計算機技術:

双层抗分布电容干扰的硬件设计和利用模糊控制理论及通信噪声理论的软件设计，可*消除大分布电容的干扰、电磁脉冲干扰和其他噪声干扰的影响。

.系統適應性強:

信号发生器能有效地排除交直流串电故障.接入系统的位置不受接地故障点距离的限制，可适应各类复杂不同电压等级的直流系统。

.智能化的故障點定位:

形象的接地点方向显示，可对包括环路在内各种直流接地故障进行准确定位。

.絕緣指數量化顯示:

通过对现场数据的智能化分析.以绝缘指数的形式直观地反映出检测支路的绝缘程度。

.專業化的波形顯示:

形象的波形曲线，显示支路接地电阻与接地电流大小，实现对直流系统的诊断分析功能。

.絕緣程度分級管理:

基于*的阻抗检测.可订制合适的绝缘告警门限，对接地告警门限值进行分级管理，有效判断接地故障类型.提高检测效率

技術參數：

*        接地阻抗檢測範圍：
系統電壓爲220V時：  檢測範圍：0 —— 250KΩ
系統電壓爲110V時：  檢測範圍：0 ——125KΩ
系統電壓爲48V時：    檢測範圍：0 ——60KΩ
系統電壓爲24V時：    檢測範圍：0 ——12KΩ
*        抗對地分布電容：對地電容單支路≤ 5*F ，系統對地總電容≤ 100*F。
*        適用系統電壓：
220V±10% ， 110V±10% ， 48V±10% ， 24V±10%  （或其它電壓等級）。
*        環境溫度： -30℃ —— +50℃。
*        環境濕度： ≤95%（不結露）
*        重量： 2.5Kg
*        外形尺寸（包裝箱）：450×260×110（mm）

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