Transcription of OVERLOAD RELAYS, STARTERS TESTING, …
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OVERLOAD RELAYS, STARTERS TESTING, …
OVERLOAD RELAYS, STARTERSTESTING, installation & trouble & SUREL&T SWITCHGEAR30 SAFE & SUREL&T SWITCHGEARESPSERVICEMANUALOVERLOAD TEST1m1mDUT1m1mFROM CURRENT SOURCE'NC' CONTACTOF RELAYC onnections of Thermal OVERLOAD Relay for O/L TestingTESTING OF THERMAL OVERLOAD up the following data of relay under ) Relay Type _____ b) Relay Range _____c) Max. Back up fuse rating continuity of auxiliary contacts and main ) Normally open _____b) Normally closed _____c) R Pole _____d) Y Pole _____NOTE : If the answer is to all above points then only take the relay for OVERLOAD the proper size of cable for connection. In case of smaller size of cable or improper termination, relay may trip all three poles of relay in series as shown in the following proper size of cables.
overload relays, starters testing, installation & trouble shooting. safe & sure l&t switchgear
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