S.No
|
Amperage type Relay
|
Voltage type Relay
|
1.
|
It is used with split phase hermetic motors.
|
It is used with capacitor start capacitor
run hermetic motors. |
2.
|
It is used to disconnect the starting winding of the motor when it reaches at 75% of its rated speed.
|
It is used to disconnect the starting capacitor from the circuit when the motor reaches at 75% of its rated speed.
|
3.
|
Its coil is made up of few turns of large wire.
|
Its coil is made up of many turns of small wire.
|
4.
|
Its coil is connected in series with the running winding.
|
Its coil is connected in parallel with the starting winding.
|
5.
|
Its working depends upon quantity of current flow through the running winding during starting and running time of the motor.
|
It operates due to the extra voltage provided by the capacitors in nthe series circuit of starting winding.
|
6.
|
Its contact points remain off when the motor is at rest.
|
Its contact points remain "ON" when the motor is at rest.
|
7.
|
It is used with fractional H.P. motors.
|
It is used with 1 to 2 H.P. motors.
|
Friday 12 January 2018
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