why 3 phase motors are preferable over single phase motors ?
Answer Posted / dhivagar eee
bcoz comparing 2 single phase 3 ohase has more efficiency
&torque
| Is This Answer Correct ? | 2 Yes | 3 No |
Post New Answer View All Answers
Ceiling Fan and Storage type water heater. Discuss
wow to calculate the transformer rating(KVA)
State the types of distortions in amplifier?
What is difference between isolator and circuit breaker?
How DC earth leakage currents can be reduced ?
Why dry type cast resin transformers tap link blast in HV side while power shut down times on load?
what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:
what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?
What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket
how many load we can take for lighting
How to arrange a hous hold earthing system to keep minimum earth resistance( below 7ohms).
How to assume answer to electrical questions
What is the operating principle of turbo-generator.
Sir,In our company there are 3 caterpillar make(capacity:(1) 3.3KV,2.5MW(2)3.3KV,2.5MW & (3)3.3KV,1.9MW) & 1 deutz make (capacity:11KV,3.8MW)gas engines utilised,all are running in paralell. There are three transformer utilised,(1) 6.25MVA,3.3KV/22KV,Impedence voltage:6.7% used for two generator,both are 2.5MW(2)5.5MVA,3.3KV/22KV,Impedence voltage:7.2% used for one generator of 2.5MW & (3) 5.5MVA,11KV/22KV,Impedence voltage:7.8% used for one generator of 2.5MW.all generator breakers capacity of 1250Amps. Sir,I want the details of fault level calculation of generator,transformer individually & for whole system. If you require any information from me.feel free for contact me sir.pl.send the answer of my question as the earliest as possible.
how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?