Why the output of generator varies eventhough the shaft speed is constant in t

Categories >> Engineering >> Electrical Engineering
Suggest New Category

Why the output of generator varies eventhough the shaft
speed is constant in thermal power plant?

Question Posted / mdelias87

5 Answers
5657 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Why the output of generator varies eventhough the shaft speed is constant in thermal power plant?..

Answer / abhishek-gaur

n=120f/p

i.e speed dirctly proprtnal to freq
when load is increasd , speed decreases, so the frequncy ,
frequncy has to be maintained within a limit to prevent
appliances from failure...

Is This Answer Correct ?

1 Yes

0 No

Why the output of generator varies eventhough the shaft speed is constant in thermal power plant?..

Answer / nethaji

I do know

Is This Answer Correct ?

0 Yes

0 No

Why the output of generator varies eventhough the shaft speed is constant in thermal power plant?..

Answer / k.prakashchandra

There is some defect in governor or pressure tank.When the
gen is connected to grid the speed remains constant as the
grid determines the speed.Check pf meter for fluctuations
also.These are teething problems in newly commissioned
gen.If the AVR is defective there will be fluctuations in
pf but not load

Is This Answer Correct ?

0 Yes

0 No

Why the output of generator varies eventhough the shaft speed is constant in thermal power plant?..

Answer / pandiya

due to stepup or stepdown transformer is my opinion

Is This Answer Correct ?

1 Yes

2 No

Why the output of generator varies eventhough the shaft speed is constant in thermal power plant?..

Answer / hardik085gmdc

It is ALL controlled by automatic voltage regulator,when we increase steam flow in turbine, stator current increase so generator terminal voltage decreased then for increasing voltage A.V.R increase excitation voltage and current SO MW INCRESE. OK

Is This Answer Correct ?

0 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

what is is the potential diffrence between two phase ?

3 Answers Bhel,

Can we use 1.1x 2 split air-conditioning at a same time in 2kw power loadar

1 Answers

in alternator why on load terminal voltage is less than no load teprminal voltage

1 Answers

Please tell me the formulaes while designing a substation for power Calculations in designing a 33 KV Substation?????

0 Answers

What is meant by Energy Efficient Transformers??? give significance

1 Answers MahaGenco,

what is an impedance & inductance ?

4 Answers

What is the meaning of ST and HT in electrical transmission and what are thier range.

6 Answers

in a transmission line if the load is suddenly increased in the receiving end of the system the phase shift will ?

1 Answers

what is diffrence between neutral and earth wire

23 Answers Bhel, Esab, MTNL,

What is circuit breaker failure protection?

2 Answers

what is a lightning arrester???

12 Answers ABB, NTPC,

what is use of substation? Any book on how to instal or construction of substations?

6 Answers Siemens,

For more Electrical Engineering Interview Questions Click Here