The results of a slip test for determining direct axis (Xd) and quadrature axis (Xq) reactances of a star connected salient pole alternator are given below Phase values: Vmax = 108 V ; Vmin = 96 V Imax = 12 A ; Imin = 10 A Hence the two reactances will be

Electrical Machines
The results of a slip test for determining direct axis (Xd) and quadrature axis (Xq) reactances of a star connected salient pole alternator are given below Phase values: Vmax = 108 V ; Vmin = 96 V Imax = 12 A ; Imin = 10 A Hence the two reactances will be

Xd = 8Ω and Xq = 10.8Ω

Xd = 9.6Ω and Xq = 9Ω

Xd = 10.8Ω and Xq = 8Ω

Xd = 9Ω and Xq = 9.6Ω

Xd = 8Ω and Xq = 10.8Ω

Xd = 9.6Ω and Xq = 9Ω

Xd = 10.8Ω and Xq = 8Ω

Xd = 9Ω and Xq = 9.6Ω

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Electrical Machines
Capacitor fitted with ceiling / table fans is of the value of

1 - 2 µF.

5 - 10 F.

0.1 µF.

2 - 3 µF.

1 - 2 µF.

5 - 10 F.

0.1 µF.

2 - 3 µF.

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Electrical Machines
Dummy coils are used for

reducing armature reaction.

All of these

increasing efficiency.

mechanical balancing.

reducing armature reaction.

All of these

increasing efficiency.

mechanical balancing.

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Electrical Machines
If in a sub Ã¢â‚¬â€œ station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub Ã¢â‚¬â€œ station will be,

4.

7.

12.

3.

4.

7.

12.

3.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
Commutator in DC generator is used for

convert AC armature current in to DC

reduce losses

collecting of current

increase efficiency

convert AC armature current in to DC

reduce losses

collecting of current

increase efficiency

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines
The working principle of transformer depends on

Faradays law of electromagnetic induction.

Newtons law.

Amperes law.

Coulombs law.

Faradays law of electromagnetic induction.

Newtons law.

Amperes law.

Coulombs law.

ANSWER DOWNLOAD EXAMIANS APP

Electrical Machines

Electrical Machines The results of a slip test for determining direct axis (Xd) and quadrature axis (Xq) reactances of a star connected salient pole alternator are given below Phase values: Vmax = 108 V ; Vmin = 96 V Imax = 12 A ; Imin = 10 A Hence the two reactances will be

Electrical Machines Capacitor fitted with ceiling / table fans is of the value of

Electrical Machines Dummy coils are used for

Electrical Machines If in a sub Ã¢â‚¬â€œ station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub Ã¢â‚¬â€œ station will be,

Electrical Machines Commutator in DC generator is used for

Electrical Machines The working principle of transformer depends on

Electrical Machines
The results of a slip test for determining direct axis (Xd) and quadrature axis (Xq) reactances of a star connected salient pole alternator are given below Phase values: Vmax = 108 V ; Vmin = 96 V Imax = 12 A ; Imin = 10 A Hence the two reactances will be

Electrical Machines
Capacitor fitted with ceiling / table fans is of the value of

Electrical Machines
Dummy coils are used for

Electrical Machines
If in a sub Ã¢â‚¬â€œ station there is one 132 / 33 kV transformer whose secondary is connected with primary of one 33 / 11 kV transformer, the total transformation ratio of the sub Ã¢â‚¬â€œ station will be,

Electrical Machines
Commutator in DC generator is used for

Electrical Machines
The working principle of transformer depends on