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| Question |
Why do we give DC excitation to AC Synchronous motor?? |
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Answer Posted By |
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Question Submitted By :: ShyamalMandirwala |
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I also faced this Question!! |
© ALL Interview .com |
| Answer | TO PRODUCE MAGNETIC FIELD  |
| Kunal
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| Answer | my question is why do we provide DC excitation????
can we provide AC excitation to the notor??? |
| Shyamal Mandirwala
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| Answer | if AC excitation is given then alternate north and south
pole is created on rotor field
the rotor move half cycle clockwise and half cycle anti
clockwise and finaly stop to rotate
due to this dc current is given to the rotor of the
syncroneous motor |
| Sanjeet Swarnakar
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| Answer | In AC synchronous motor its stator coil is not a
permanment magentising property so it is connected with dc
exciter for initial operation purpose. |
| Ashok Kumar
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| Question |
Why don't we provide SURGE ARRESTORS for Transformer
feeders? |
Rank |
Answer Posted By |
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Question Submitted By :: ShyamalMandirwala |
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I also faced this Question!! |
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| Answer | BECAUSE VOLTAGE VATIATION IS IN STEPS FOR TRANSFORMER
FEEDERS |
| Yogesh
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| Question |
what is a boiler
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Answer Posted By |
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Question Submitted By :: Guest |
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I also faced this Question!! |
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| Answer | boiler is a system in which we generate steam its also
called steam generator |
| Rahul
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| Question |
Questions :-
HR-
Q.1 about yourself & family background ?
Q.2 Why u choose Power sector as ur carrier starting not any
other sector ??
Q. 3 What think abt NTPC ?
Techincal Questions:-
Q.1 about Vocational Training……What u did , see the main
equipments….etc
Q.2 Why a transformer Noise during its running condition ?
Q.3 about transformer oil material & Test name for the
measurement of its dielectric strength & wht will u do if
its dielectric strength goes low ? ……..some discussion type ?
Q.4 What is relation between transmission lines &
Communication lines ?
Q.5 Which Machine u will prefer to use at a place where
flammable gases are coming out & why ?
Q.6 how fault in an electric system is detected & hw
protection of equipments is done ?
Q.7 Why we didn’t feel electric shock in an electric train ??
Q.8 Anything u want to ask from us ??
|
Rank |
Answer Posted By |
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Question Submitted By :: Chetram Meena |
| This Interview Question Asked @ NTPC |
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I also faced this Question!! |
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| Answer | give ur mail id
my email id is
sanjeet.swarnakar@gmail.com |
| Sanjeet
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| Question |
How to convert SR latch using JK flip flop? |
Rank |
Answer Posted By |
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Question Submitted By :: Ravichandra |
| This Interview Question Asked @ Bosch |
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I also faced this Question!! |
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| Answer | s is connected with not(q)
r is connected with q |
| Raj
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| Question |
why power generate in 33 kv it will be step down by 11 kv . |
Rank |
Answer Posted By |
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Question Submitted By :: Ayyappan |
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I also faced this Question!! |
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| Answer | for generation of 33kv we require large alternators thus
increase the initial investment of plant. |
| Sathish
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| Answer | for generation of 33kv we require large alternators thus
increase the initial investment of plant.reduse the voltage
fluctuation |
| V.chandrasekharreddy
[First Technologies Pvt Ltd] |
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| Answer | generating 33kv that will reduce the current flow
transmission line so line loss will be reduced and step
down to 11kv for distributing to consumer |
| Sridhar,psgtech
[First Technologies Pvt Ltd] |
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