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标题: 17章变压器和相关电路的过载保护问题 [打印本页]

作者: zephon    时间: 2013-10-10 16:27
标题: 17章变压器和相关电路的过载保护问题
请教大家,电池充电器做17章Overload protection of transformers and associated circuits  实验,是直接给变压器次级rectifier之后输出带过载吗?是不是从额定带载到保护为止?新手求前辈们指导3 [  r. G- _7 H7 s9 a

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作者: zephon    时间: 2013-10-10 20:40
怎么一个指导的都没有啊
作者: jd_ren    时间: 2016-3-8 10:48
同问,是不是都是意思下就好了
作者: wu501x    时间: 2016-3-9 17:24
17 Overload protection of transformers and associated circuits9 B5 @. z5 m$ b* E' `
Appliances incorporating circuits supplied from a transformer shall be constructed so that in
/ {) y" w/ M% I" X0 Y6 @2 Fthe event of short circuits which are likely to occur in normal use, excessive temperatures do
9 a7 h; `+ S& P" y/ _1 y& {3 {not occur in the transformer or in the circuits associated with the transformer.
' f' M( q* w, j  Q) J7 Y4 RNOTE Examples are the short-circuiting of bare or inadequately insulated conductors of accessible circuits
) N6 `/ h& g; t, L. Aoperating at safety extra-low voltage.
0 x( t  ~# m, F$ d+ {Compliance is checked by applying the most unfavourable short circuit or overload which is
% ?( b/ M. a/ Y# ~1 n  o0 clikely to occur in normal use, the appliance being supplied with 1,06 times or 0,94 times rated( C: w, O3 K1 j/ z6 c- N: U- d
voltage, whichever is the more unfavourable. Basic insulation is not short circuited.
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特殊标准好像有补充




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