Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. What is the operating frequency, if the load is 600 MW?

Electrical Machines
Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are identical as 4% from no load to full load. Consider the governors operating at 50Hz on no load. What is the operating frequency, if the load is 600 MW?

48.5 Hz

50 Hz

48 Hz

45 HZ

48.5 Hz

50 Hz

48 Hz

45 HZ

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Electrical Machines
The output power of a dc motor is given by

none of these.

EbIa.

EIa.

EbIa2.

none of these.

EbIa.

EIa.

EbIa2.

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Electrical Machines
Transformer core is laminated to reduce

copper loss.

both 1 and 2.

eddy current loss.

hysteresis loss.

copper loss.

both 1 and 2.

eddy current loss.

hysteresis loss.

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Electrical Machines
Example of double excited machine is

DC Shunt Motor

Synchronous motor.

None of these

Both are correct.

DC Shunt Motor

Synchronous motor.

None of these

Both are correct.

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Electrical Machines
For a transformer to be tested at full load conditions but consuming only losses from the main, we do

OC and SC tests

load test

back to back test

None of these

OC and SC tests

load test

back to back test

None of these

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Electrical Machines
A small air gap in poly phase induction motor helps to

reduce chance of cogging.

reduce magnetizing current.

increase starting torque.

reduce chance of crawling.

reduce chance of cogging.

reduce magnetizing current.

increase starting torque.

reduce chance of crawling.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines The output power of a dc motor is given by

Electrical Machines Transformer core is laminated to reduce

Electrical Machines Example of double excited machine is

Electrical Machines For a transformer to be tested at full load conditions but consuming only losses from the main, we do

Electrical Machines A small air gap in poly phase induction motor helps to

Electrical Machines
The output power of a dc motor is given by

Electrical Machines
Transformer core is laminated to reduce

Electrical Machines
Example of double excited machine is

Electrical Machines
For a transformer to be tested at full load conditions but consuming only losses from the main, we do

Electrical Machines
A small air gap in poly phase induction motor helps to