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No partial discharge transformer

试验变压器是电力设备检测及预防性试验所必备的试验设备。随着我国电力工业的发展，对试验变压器的电压等级要求也越来越高，而传统的油浸式试验变压器，无论在体积上和重量上还是在性能上都越来越不能满足现场工作的要求。
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Transformer, motor test
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　　一、概述

　　试验变压器是电力设备检测及预防性试验所必备的试验设备。随着我国电力工业的发展，对试验变压器的电压等级要求也越来越高，而传统的油浸式试验变压器，无论在体积上和重量上还是在性能上都越来越不能满足现场工作的要求。

 

　　二、工作原理

　　把电源输入有过流自动脱扣及防止突发加压的零位连锁装置的操作箱，经自耦调压器调节电压输入NDYDQ试验变压器初级绕组，根据电磁感应原理，在次级(高压)绕组按其与初级绕组匝数之比可获得同等倍数的电压幅值-工频高压。此工频高经高压硅堆整流及稳压电容器滤波可取得直流高压，其幅值是工频高压有效值的2倍。

 

　　三、技术指标及参数

　　1、对各电压等级变压器的空载电流4～9%，阻抗电压4～10%

　　2、NDX(T)C-系列现有规格及运行时间

 

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