DSH 543AA Representative test Voltage for induction motor-compressors

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IEC60335试验指甲

DSH 543AA

Representative test Voltage for induction motor-compressors

4.8.1(3rd)/5.8.1(4th)

60335-1(ed.3) & 60335-1(ed.4) 5 n7 E- B, i$ B# H' _5 {

* s& r4 R! J& LQuestion:
. l, U6 C0 u% S+ M  pFor locked rotor testing of induction motors, is testing at 50 Hz considered more severe than 60 Hz.
2 C+ U6 W" B8 H+ r) V4 x6 Btesting, so that locked rotor testing at 50 Hz can be considered representative of testing at 60 Hz?
Proposal (if any):
3 {% i8 n" D* Y( J& |* u( b2 hFor induction motors including motor-compressors rated 50 and 60 Hz, with the same rated
# b$ }! V% ?/ M& o, Lvoltage(s) at each frequency, locked rotor testing at 50 Hz is considered more unfavorable.
- A1 V: f! g) N, n0 t1 IFor induction motors including motor-compressors rated 50 and 60 Hz, locked rotor testing at
50 Hz, at the highest rated voltage(s) is considered to be the more unfavorable condition. For
+ v) [/ u. ^- M- Y4 z4 kinduction motors including motor-compressors rated 60 Hz, locked rotor testing at 50 Hz and
rated voltage(s) is considered more unfavorable.
& `8 |; ~/ J0 j8 d' P