标题: Which standard should be apply for mediun voltage converter [打印本页] 作者: Andy.Yang 时间: 2010-3-5 09:21 标题: Which standard should be apply for mediun voltage converter Now my company wanna have a UL certification for our medium voltage converter, brief introduction as below:1 Q. R* G+ m) b
--------------------------------------------------------------------------------------------------------------------- , R. }; q# _- m: a- u n: BPower cell: input:690V/3 phases, output voltage and frequency can be adjusted.$ b: Q7 p. I* ~4 z# J
System:6 power cells in series, and then the total output voltage can be very high. " k% V) {" R. {3 ^9 w! m--------------------------------------------------------------------------------------------------------------------- : n# w7 E; a/ I8 w! oAfter checking the UL standards, I think UL508C and UL347A will be used, but UL508C only applies to 1500V and below, UL347A is for more than 1500V. From my side, I think UL347A is a supplement for UL508C, so I feel our products should follow UL508C first for the power cell, then for system, we can use UL347A.... 7 W. v2 T# W/ T* L6 u6 T { O5 E# ^7 @- I$ W2 e0 ~7 eAm I right, or if my friends have other advise or instruction, pls kindly instruct me. ' x7 w$ e0 j+ x( x & `% L3 c7 U4 b$ g. o2 OThanks!