Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are 4% and 5% 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 4% and 5% 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 2 gets over load

200 MW and 400MW

generator 1 gets over load

None of these

generator 2 gets over load

200 MW and 400MW

generator 1 gets over load

None of these

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Electrical Machines
In speed control of DC Series motor, speed lower than the rated speed can be obtained by

Connecting an additional resistance in the field circuit.

Connecting an additional resistance in the armature circuit.

Any of the above.

Connecting an additional resistance in stator circuit.

Connecting an additional resistance in the field circuit.

Connecting an additional resistance in the armature circuit.

Any of the above.

Connecting an additional resistance in stator circuit.

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Electrical Machines
The squirrel cage induction motors are provided with blades in order to

none of these.

eliminate noise.

balance the rotor dynamically.

facilitate cooling of rotor.

none of these.

eliminate noise.

balance the rotor dynamically.

facilitate cooling of rotor.

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Electrical Machines
Armature reaction in DC generators will result in

short circuit.

increase in slip.

reduction in generated emf.

open circuit.

short circuit.

increase in slip.

reduction in generated emf.

open circuit.

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Electrical Machines
To avoid formation of grooves in the commutator

None of these

the brushes of opposite polarity should track each other.

the brushes of same polarity should track each other.

brush position has no effect on the commutator grooving.

None of these

the brushes of opposite polarity should track each other.

the brushes of same polarity should track each other.

brush position has no effect on the commutator grooving.

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Electrical Machines
If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will

remain unchanged.

reduce by 5 %.

depend on other factors.

increase by 5 %.

remain unchanged.

reduce by 5 %.

depend on other factors.

increase by 5 %.

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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 4% and 5% 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 In speed control of DC Series motor, speed lower than the rated speed can be obtained by

Electrical Machines The squirrel cage induction motors are provided with blades in order to

Electrical Machines Armature reaction in DC generators will result in

Electrical Machines To avoid formation of grooves in the commutator

Electrical Machines If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will

Electrical Machines
Two synchronous generators operating in parallel 200 MW and 400 MW respectively. The drooping characteristics of their governors are 4% and 5% 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
In speed control of DC Series motor, speed lower than the rated speed can be obtained by

Electrical Machines
The squirrel cage induction motors are provided with blades in order to

Electrical Machines
Armature reaction in DC generators will result in

Electrical Machines
To avoid formation of grooves in the commutator

Electrical Machines
If the load current and the flux of a DC motor are held constant and voltage applied across its armature is increased by 5%, the speed of the motor will