Can anyone explain about Control and power circuits of star delta starter & DOL starter ? How it works? please!
DOL- DIRECT ONLINE STARTER
we use one contactor,one thermal o/l relay
in this connection we use the contactors NO contact parallel to contactor coil after stop push button,
when we push start P/B and realease it at this time the NO
contact becames NC and the contactor run continously.
Is This Answer Correct ? | 0 Yes | 0 No |
how do you calculate IKW(consumption per TR) in HVAC?
27 Answers Aircon, CBRE, Cipla, Clivet, Cushman Wakefield, JLL, Sodexo, Voltas, Wipro,
In Power transformer oil temperature or winding temperature will be high
What is the breakdown voltage?
a transformer can have zero voltage regulation a)o pf b)1 pf c)lagg pf d)lead pf
highest rating of alternator used in india
WHAT IS B & C CLASS SURGE PROTECTION AND WHAT IS DIFFERENCE BETWEEN B & c CLASS SP
What is harmonics in AC waves. How it is generated? How it will effect the system network? how can eliminate it?
Why the magneti fields are not passes from southpole to north pole
how can we can take BDV test in transformer?
If we say that an cable of size 3.5X 50 mm sq. can take current upto 140 amps,is it the current of single core of the cable or of all the cores jointly.
what will happen if ac power supply is given to the rotor of an alternator
what is derating factor in Cable ? how we minimise this?
18 Answers Bhel, College School Exams Tests,