标题: DSH 543AA Representative test Voltage for induction motor-compressors [打印本页] 作者: 小米 时间: 2012-9-9 16:11 标题: DSH 543AA Representative test Voltage for induction motor-compressors
+ Z3 l+ n3 \/ ]2 m4 u/ Q- @0 yQuestion: 9 l( V0 `$ D, K" [For locked rotor testing of induction motors, is testing at 50 Hz considered more severe than 60 Hz. ) U8 z( `7 K; n' V) M3 Stesting, so that locked rotor testing at 50 Hz can be considered representative of testing at 60 Hz?" Q5 W2 S3 z: G0 U; C
Proposal (if any): " u- A/ r, |6 u- {! E, _% e' UFor induction motors including motor-compressors rated 50 and 60 Hz, with the same rated) |. U a9 [$ A* f2 B* |
voltage(s) at each frequency, locked rotor testing at 50 Hz is considered more unfavorable. M6 K, p& B+ ^" LFor induction motors including motor-compressors rated 50 and 60 Hz, locked rotor testing at& b5 |2 m4 T% `) u' o
50 Hz, at the highest rated voltage(s) is considered to be the more unfavorable condition. For, i8 X k$ v/ T+ V, \
induction motors including motor-compressors rated 60 Hz, locked rotor testing at 50 Hz and1 r% E1 u6 e0 [$ _) a
rated voltage(s) is considered more unfavorable.4 g8 Y, N8 f, A5 j M
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DSH 543AA7 D9 E# v8 F1 d