A 6.6 KV motor breaker is try to Drack OUT by me while the
motor running. What will Happened?
a, will Trip.
b,Drack Out lever will not access
c, will get shock
d, noting will happened
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Answer Posted / vinayak
For 6.6 KV Motor's VCB haves inbuilt interlock that if you
try to rack out VCB it will trip VCB and naturally trip
Motors. IS/IEC will not permit omit this intelock.
In Case if interlock not working, It will produce arching
and Noise at point of disconnection of contact.
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