True or False 1. In solid grounding large fault current flows between the fault point and the grounded neutral. 2. Solenoid relay works on the idea that an armature is attracted to the poles of an electro-magnet. 3. The net force applied to the disc of an induction relay depends on the angle between the fluxes. 4. In a watt-hour meter the secondary is connected to the relay. 5. Pickup current is the minimum current in a relay coil at which the relay starts to operate.
Synchronous Generator
In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.
Salient Pole Rotor
Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.
True or False
1. In solid grounding large fault current flows between the fault point and the grounded neutral.
2. Solenoid relay works on the idea that an armature is attracted to the poles of an electro-magnet.
3. The net force applied to the disc of an induction relay depends on the angle between the fluxes.
4. In a watt-hour meter the secondary is connected to the relay.
5. Pickup current is the minimum current in a relay coil at which the relay starts to operate.
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