What is the function of overload relay (OLR)?
An overload relay is a device that protects an electric motor against overloads, phase failure, mechanical jamming and ground fault. It senses the overloading of the motor and interrupts the the power flow to the motor, consequently protecting it from overheating and winding damages.
What is the difference between relay and overload relay (OLR)?
A
relay with an inverse time characteristic operates faster as current increases.
If it's an electric motor, a higher (mechanical) load will provide upward push
to a higher current as a result overload
= overcurrent. Overload may also equate to overcurrent if the supply voltage is
essentially constant (whatever the equipment).
Read Also...
? | What is the difference between relay and overload relay (OLR)?){kind=link}
0 Comments