|
|
|  DSH 470. i. z! c$ B; O; Z2 u" T6 `
* G1 a- Z3 x7 r; F* l
| Abnormal operation Appendix B3 R o" C" {- t% \, ?0 f
| B19.101 to B19.103$ p' I4 ^6 \# b C
| 60335-1(ed.2)2 W8 m0 C$ P+ Y4 s
|
$ T4 g( O, `# Y9 {- G, R: m& wStandard: IEC 60335-1:1976, 2nd Ed.
; t4 I% ^& _ Q0 s/ Q& KSub clause: B19.101 to B19.103/ o" E3 V! O/ o+ N- M
Sheet No. DSH 4706 u3 [5 q) n1 I; S3 ?" G/ U
Subject: Abnormal operation Appendix B8 k5 t" t f- x
Key words: - electronic controls - electronic components
$ ~+ M6 V2 Q. M4 l4 kDecision taken at the 40th CTL meeting 2003
8 ~4 j2 a' r' _Question:4 H# M' F% R) O% k. _! x
How are the test results evaluated when testing speed control units for series motors?
G$ W$ t n! wRationale:, H! W1 E9 @% c0 j' n6 h4 w
See question.
n: t6 {2 n) Y, FDecision:
6 r/ g+ d8 n, W5 {/ y$ bRapid reversal of the motor rotation and jumping of the appliance during short-circuiting of
! x$ s# I$ B' q# D! a. w9 Ithe electronic control is checked during 1 complete cycle. The fault is introduced from the
* i4 R5 C0 W" }( e" d8 fbeginning. The jumping is judged for the possible mechanical risk. After the test the
" ~, O) \5 \/ z7 p2 mappliance is checked for consequential faults or breaks.* Y8 E1 E( ?. n& q _7 B
6 h7 H" A; G7 f1 f$ A7 r; X
5 M, \5 ~+ c4 C4 L5 S" s8 Z9 Y. w
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有账号？注册安规
x
|
/1 
|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
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡