太阳能逆变器局部放电测试

houfengp83

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

有人清楚局放测试在做太阳能逆变器认证时怎么做的吗？用哪款设备？
: E, f4 R* `1 y6 r+ Z/ t: _3 t3 N$ W

清水白菜

* n. p8 T/ E; V1 r6 f. H' A; q' G6 \5 }
' O% L7 ]- ]4 C' d) G, uIn addition, double and reinforced insulation shall withstand the partial discharge test according to 7.5.3, if the recurring peak working voltage across the insulation is greater than 700 V and the voltage stress on the insulation is greater than 1 kV/mm.
0 _! z( z" t9 ?- W; xCompliance is shown by impulse withstand voltage test according to 7.5.1 and the a.c. or d.c. voltage test according to 7.5.2, and partial discharge testing according to 7.5.3 if applicable.
$ ]6 w) _% k* T2 Q2 h% w
Starting from a voltage below the rated discharge voltage UPD a, the voltage shall be linearly increased to 1,875 times UPD and held for a maximum time of 5 s
The voltage shall then be linearly decreased to 1,5 times UPD (± 5 %) and held for a maximum time of 15 s, during which the partial discharge is measured
% \, \, a8 F" P# @$ T1 SThe test shall be considered to have been successfully passed if the partial discharge is less than 10 pC during the measurement period

7 Q5 I3 d8 Q* t) f- j: A, ^+ C  y至于测试设备，网上一搜索就有了。

lu-zgsh

来学习

ok_hmh

UPD 是哪个电压？

feiniaoo

ok_hmh 发表于 2012-9-27 11:28
" `1 Z- w: N, @1 DUPD 是哪个电压？

$ N' L" u. _- h- v被绝缘物隔离的两边带电体的电压最大值

feiniaoo

局部放电只针对起保护隔离的固体绝缘进行，在器件级别进行即可.
要使用局部放电测试仪