DSH 543AA Representative test Voltage for induction motor-compressors

小米

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 543AA & }6 E5 E; V8 G7 H3 T( Y% o; h 9 H1 u0 B* k( B7 v

Representative test Voltage for induction motor-compressors

4.8.1(3rd)/5.8.1(4th)

60335-1(ed.3) & 60335-1(ed.4) 4 O' o6 G$ ~; @7 K" L

% o2 C3 ]+ b0 _% {+ BQuestion:
For locked rotor testing of induction motors, is testing at 50 Hz considered more severe than 60 Hz.
testing, so that locked rotor testing at 50 Hz can be considered representative of testing at 60 Hz?
Proposal (if any):
1 }" I. m* V6 H* TFor induction motors including motor-compressors rated 50 and 60 Hz, with the same rated
$ l# J$ J# I: h) E* c* Pvoltage(s) at each frequency, locked rotor testing at 50 Hz is considered more unfavorable.
For induction motors including motor-compressors rated 50 and 60 Hz, locked rotor testing at
0 Y$ ?+ M0 F6 W8 J4 b& m50 Hz, at the highest rated voltage(s) is considered to be the more unfavorable condition. For
. d4 }2 l% [3 Oinduction motors including motor-compressors rated 60 Hz, locked rotor testing at 50 Hz and
rated voltage(s) is considered more unfavorable.

8 k5 W) m( r7 W
4 Q# ^4 _6 E2 M5 @7 p. o+ j