when the cable of a motor shorted then differetial relay act
when the cable of a motor shorted then differetial relay act
differential protection relay
In power transformer, a differential relay is a relay that verifies the balance of current between the primary and the secondary face of a transformer. It is also employed in other components of the power system like in protecting cables. Differential relay is also called a unit protection.
CT's are used as inputs to the differential. If the CT is bad, or it is not wired to the differential correctly, it will cause differential current to be seen by the relay, resulting in a trip.
The differential is part of the transmission gear train. It does not have a separate motor.
Where is the blower motor relay at.
Power Transformer
A relay cannot be used to power a motor. It can be used to control the motor by wiring the motor circuit in series with the relay contacts.
The wiper motor relay is in the box, built on the wiper motor.
the blower motor relay is located next to the blower motor it is connected to the motor by a purple and black wires
They're completely different, used for different applications (usually). A distance relay uses both current and voltage. A differential relay uses only current. A differential relay usually has harmonic restraint capability, while distance relays ideally track system frequency. Differential relays require fast operation, while distance relays may not be required to operate as quickly. Distance relays have more issues with operating for out of zone problems than differential relays. There are many more, but this gives an idea.
Under or near your glovebox is your relay center. Blower motor relay is in there. Usually it is black