太阳能逆变器局部放电测试

houfengp83

广东安规检测
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小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

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可程式恒温恒湿试验箱

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各种灯头量规现货

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GB1002插头量规

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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

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家电温升测试角

针焰试验机现货

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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？
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清水白菜

8 j) }2 ?7 }. i; R& NIn 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.
( V) M8 t0 N, K- m- ~5 u9 ^8 c# K1 MCompliance 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.
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4 e( |8 W2 b% ^& z4 I+ @; IStarting 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
The test shall be considered to have been successfully passed if the partial discharge is less than 10 pC during the measurement period

) W2 \' w8 k4 p0 ^至于测试设备，网上一搜索就有了。
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来学习

ok_hmh

UPD 是哪个电压？

feiniaoo

ok_hmh 发表于 2012-9-27 11:28
UPD 是哪个电压？

! e1 [3 I! {4 C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