difference between shunt coil and tripping coil8 60544
why transformer cannot rotate though the princplebehind induction motor is similar to a transformer?2 3331
Why ACB is used in LT why not in HT and why VCB is used in HT why not in LT1 19804
If 3-Ph motor of same rating connected in Delta & Star for same load one by one then which connection take more current in running (not in starting)for full load.(eg 8.5 KW,3-Ph 400 V)1 3774
In Swinburne's Test on D.C.machines, why the efficiency is more when the machine runs as generator than when it runs as motor???6 33278
In 110V DC supply,if a closed circuit gets open, How can we identify the voltage which is measured after the resistor(4KOhm) which is open with negative.it shows 55V +ve when measured, also the actual positive source is 55V +ve .Because there is no voltage drop in open circuit. How can we identify whether this is the voltage which is series with the resistor or the DC source direct +ve.1 2876
Why CT secondary is grounded?11 45771
What are types of losses in the Transmisson Lines ?4 3783
Why power factor should not be in leading (capacitive) mode of any load.3 4632
what is an S.C.R. and how do they work?4 4280
why we are grounding the neutral?1 1405
why trip circuit supervision is taking through breaker contact? what happen if takendirectly?2 2349
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