Synchrocheck relays ensures that bus and line side voltages are within programmed differentials of voltage magnitude phase angle frequency and phase rotation is the same.
Sync check relay.
The synchro check function is used when two separate networks or two electrically.
The volt free relay contacts change state when the voltage level phase relationship and frequency are within the selected synchronising limits.
The numerical synchro check relay type spau 140 c is a voltage measuring relay designed to be used when two power systems are to be connected together.
Synchro check or sync check relays are used to verify that voltage phase angle frequency and phase rotation across two sides of a breaker are the same prior to closing the breaker.
It means we can do still synchronization with the 1 5 voltage or frequency mismatch.
Connecting two electrical systems that are not closely matched can cause expensive damage and disturbance to the electrical.
Today these are digital microprocess.
Sync check relay synchronism check relay are relays that allow unattended synchronization of a machine with a system.
Check synchronous relay setting.
This relay contains the allowable percentage of mismatch of voltage and frequency.
The synchro check relay can be used to assist in the semi automatic parallelling of two ac power systems.