|
|
|  DSH 470
$ W( w/ K% F0 H y/ G
8 B2 M# \1 J" B. ]; ? | Abnormal operation Appendix B
* V" p% p+ A! F8 @' Q | B19.101 to B19.103
" o+ L' e: Q/ p4 L | 60335-1(ed.2)
- q3 L% R7 t1 O |
( k3 D C" S" c$ ^
Standard: IEC 60335-1:1976, 2nd Ed.% K+ T& e: i0 f1 z$ o
Sub clause: B19.101 to B19.103
9 |* i9 M6 X6 h5 ?( i. B5 |( `Sheet No. DSH 470
8 d* H- P/ r) R% F) P. g, L2 LSubject: Abnormal operation Appendix B
2 D; ^* i. t6 S( YKey words: - electronic controls - electronic components
+ T: C; N; A/ ]2 f" ]; tDecision taken at the 40th CTL meeting 2003- P+ h) N0 u2 G# Z
Question:
9 `" Q; Q4 m& OHow are the test results evaluated when testing speed control units for series motors?' B* F. H d6 k* e$ O. L& ^! v
Rationale:
! _6 u. y$ }( TSee question.
9 d& W) P' }, B! ODecision:6 ~( r' K' h/ Q( s9 {
Rapid reversal of the motor rotation and jumping of the appliance during short-circuiting of
" }% l* I/ M; ?* |+ Qthe electronic control is checked during 1 complete cycle. The fault is introduced from the: q. a F" w- t* w! ]6 J+ V- v+ ? l$ ^( X* y
beginning. The jumping is judged for the possible mechanical risk. After the test the# a, m& @; Z5 v) x4 ?; k& R% Y6 V
appliance is checked for consequential faults or breaks.. ?6 k. j) Z. j; l7 @
9 \. J: y ]! ^! s# p/ t
: r7 w6 E% ?' z5 J# v, `$ R! Q4 k |
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有帐号？注册安规
x
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-9-12 12:59
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡