标题: 变压器绝缘材料测试 [打印本页] 作者: xiaoning 时间: 2015-1-14 14:15 标题: 变压器绝缘材料测试 一、交代背景:刚做这个,不了解请教一下。请问变压器绝缘材料测试即打耐压,翻阅以往UL工程师发的data sheet 要求:测试方法1:1层:2500V;2层:5000V。测试方法2:Samples of theinsulating materials were conditioned for 96 hours in moist air having arelative humidity of 85% to 95% and a temperature of 33°C to 37°C. The samples were then placed between twoopposing electrodes after the conditioning period. The electrodes were cylindrical brass rods of6.4mm diameter, with edges rounded to a 0.8mm radius. The AC test potential of 3000 V was then appliedacross the electrodes for a period of 1 minute.二、请问:变压器上的绝缘材料是指包裹在变压器外面的那一层一层的黄颜色的胶带吗?变压器的绝缘骨架需要测试耐压吗?2层可以将单个绝缘材料叠加测试吗?谢谢5 z$ c$ I$ X9 M- P7 j! z: n
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" J/ f9 B( g. F, u$ D# x$ O * U7 d; Q; C- V F/ A' o3 J' |; @作者: Nezof 时间: 2015-1-14 14:22
一般是指那胶带4 f' e3 c8 J5 l1 h
可以两层叠在一起 / ]- y! C1 ]5 M, {6 N骨架一般不需要测试耐压,而是测试温度作者: icoffee_zhang 时间: 2015-1-14 14:40
UL的一般用卷轴测试胶带耐压作者: xiaoning 时间: 2015-1-14 14:47
' W! h! P: c/ s1 _用的是这个data sheet 上描述的方法 d3 s* u+ u- [8 C$ D5 q, p , x1 x e8 s4 CSamples of the insulating materials were placed between two opposing electrodes. The electrodes were [×] cylindrical brass [ ] stainless steel rods 6.4mm in diameter, with edges rounded to a 0.8mm radius. The upper moveable electrode weighed between 48 and 52 grams. The AC test potential of [X] 2500 V [X] 5000 V was then applied across the electrodes for a period of 1 second.% n! \; ~0 B, r2 H3 q( |, q/ y 作者: xiaoning 时间: 2015-1-14 14:59
Nezof 发表于 2015-1-14 14:22 1 { s( Q% s3 }" k; ?# c% w1 U- I
一般是指那胶带) p x# [* [( k: D: R
可以两层叠在一起* b0 ^& H# |+ r+ i- m0 c1 [0 s
骨架一般不需要测试耐压,而是测试温度