Answer / anand

Synchrnous motor is a constant speed motor but induction
motor is not an constant speed motor but synchronous motor
cannot be used for variable speed purpose....

Answer / sumit

the difference between induction and syncronous motor is
induction motor never run in syncronous speed but
synchronized motor run always in syncronous speed.so
induction motor is call asyncronous motor

Answer / iamdon

These are the differences between Induction
motor and synchronous motor
1)Induction motor always runs at speed less than
Synchronous speed where as synchronous motor always
runs at synchronous speed.
2)Induction motor has AC winding on rotor where as
synchronous motor has DC field winding on rotor.

Answer / ln sahu db power ltd.

3 phase induction motor is self starting device . its
relative speed between stator and rotor field not equal to
zero. while in synchronous motor its average torque is zero,
i.e. relative speed between stator and rotor field is zero
.hence it is not a self starting device.

Dear All, If we have 8No. 11kV cables running underground that are required to supply 20MW to a new development. What is the sustained current in Amps? Please advise.

1 Answers  

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give me applications of sequence bridges . (used in 3 phase un balanced systems)

0 Answers  

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what will happen if frequency is below 50 hz?

0 Answers   Student,

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When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?

6 Answers   APNPDCL,

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A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?

1 Answers  

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What is VCB'S @ ACB'S.Plz explain Briefly

2 Answers  

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how the B-H loop obtain under the static condition

0 Answers  

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why we calculate only 11kv 33kv and 132kv ... why not 10kv 20kv 45kv?

3 Answers   Bhel, ISMT,

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1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

0 Answers   ABC,

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What will happen if supply to three phase motor is given wiyhout inerting rotor in it?How much current it will draw?

5 Answers  

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why breaker closing coil gets burnt if supply is continously provided to it.

1 Answers   TATA,

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What are various modes for Mechanical interlocking of breakers (for both MCCBs & ACBs)

1 Answers  

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