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GCSNF系列水內冷發電機直流高壓試驗

發布日期：2025-01-06
訪問次數：783
地址：上海寶山

GCSNF系列水內冷發電機直流高壓試驗装置根据：“低压屏蔽法“原理研制的；实现了在通水情况下对水内冷发电机进行直流耐压和直流泄漏电流的试验。*克服了吹水时间长，底部积水难吹干，易引起线圈内拉弧等难题。

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産品介紹：

發電機直流試驗能靈敏有效發現定子繞組端部缺陷和間隙性缺陷以成爲發電機繞組絕緣試驗中普遍采用的方法。由于大型水內冷發電機彙水管傳導電流很大，且根據水質不同，一般在試驗電壓下電流達20～150mA不等，如果沒有足夠容量的直流高壓發生器，將無法升壓。

GCSNF系列水內冷發電機直流高壓試驗裝置是上海旺徐電氣專爲發電機，特別是水內冷發電機進行泄漏電流和直流高壓試驗而研制的。它特別設計了各種幹擾電流的補償回路，試驗時可*排除雜散電流和彙水管的極化電勢幹擾的影響，能夠准確測量水內冷發電機繞組的泄漏電流。

GCSNF系列水內冷發電機直流高壓試驗裝置控制部分還具有兆歐表功能，由于它的短路電流可≥20mA，足夠滿足水內冷發電機的絕緣電阻和吸收比的測量，是一般搖表無法替代的。

産品特點：

◎根据：“低压屏蔽法”原理研制的“水内冷发电机通水直流耐压试验装置”，实现了在通水情况下对水内冷发电机进行直流耐压和直流泄漏电流的试验。*克服了吹水时间长，底部积水难吹干，易引起线圈内拉弧等难题。

◎直流试验对一般高压电气设备而言，能发现其绝缘的贯穿性缺陷，而对电机来说，它能*发现它的局部绝缘缺陷（定子线卷端部绝缘）这是其它试验无法替代的。为能对水内冷发电机组的准确测量泄漏电流，GCSNF系列高压发生器特别设计了各种干扰电流的补偿回路试验时可*排除杂散电流和汇水管的极化电势干扰的影响，真正测到试品的电流。

技術參數：

技术参数 / 规格 kV/mA50/10050/12060/15060/20080/200输出电压kV输出电流mA输出功率W电压测量误差≤1.0%±1个字电流测量误差≤1.0%±1个字过压整定误差≤1.0%纹波系数≤3.0%电压稳定度≤1.0%电源电压AC220VAC380V（三相四线）机箱重量25.0kg25.0kg25.0kg倍压重量45.0k65.0kg70.0kg

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