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. How will the machine share, 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. How will the machine share, if the load is 600 MW?

generator 1 gets over load

230.7 MW and 369.23 MW respectively

200 MW and 400MW respectively

generator 2 gets over load

generator 1 gets over load

230.7 MW and 369.23 MW respectively

200 MW and 400MW respectively

generator 2 gets over load

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Electrical Machines
Which of these types of motor is self starting?

None of these.

Poly-phase induction motor.

Poly-phase synchronous machine.

Single phase induction motor.

None of these.

Poly-phase induction motor.

Poly-phase synchronous machine.

Single phase induction motor.

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Electrical Machines
In an induction motor, what is the ratio of rotor input to rotor copper loss?

S

1-S

1/(1-S)

1/S

S

1-S

1/(1-S)

1/S

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Electrical Machines
Silicon content in steel lamination is kept within 5% as it

increases hysteresis loss.

All of these

makes the material brittle.

Increases cost.

increases hysteresis loss.

All of these

makes the material brittle.

Increases cost.

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Electrical Machines
With the increase in speed of DC motor

Back emf increase but line current falls.

Both back emf as well as line current increase.

Back emf falls and line current increase.

Both back emf as well as line current fall.

Back emf increase but line current falls.

Both back emf as well as line current increase.

Back emf falls and line current increase.

Both back emf as well as line current fall.

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Electrical Machines
Semi closed slots or totally closed slots are used in induction motors, essentially to

increase pull out torque

decrease starting torque

improve starting torque

reduce magnetising current and improve power factor

increase pull out torque

decrease starting torque

improve starting torque

reduce magnetising current and improve power factor

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Electrical Machines

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. How will the machine share, if the load is 600 MW?

Electrical Machines Which of these types of motor is self starting?

Electrical Machines In an induction motor, what is the ratio of rotor input to rotor copper loss?

Electrical Machines Silicon content in steel lamination is kept within 5% as it

Electrical Machines With the increase in speed of DC motor

Electrical Machines Semi closed slots or totally closed slots are used in induction motors, essentially to

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. How will the machine share, if the load is 600 MW?

Electrical Machines
Which of these types of motor is self starting?

Electrical Machines
In an induction motor, what is the ratio of rotor input to rotor copper loss?

Electrical Machines
Silicon content in steel lamination is kept within 5% as it

Electrical Machines
With the increase in speed of DC motor

Electrical Machines
Semi closed slots or totally closed slots are used in induction motors, essentially to