Sync Check Relay

Today these are digital microprocess.
Sync check relay. Check synchronous relay setting. This relay contains the allowable percentage of mismatch of voltage and frequency. The synchro check relay spau 140 c can be used for both synchro check functions and voltage check functions. The synchro check function is used when two separate networks or two electrically.
It means we can do still synchronization with the 1 5 voltage or frequency mismatch. The volt free relay contacts change state when the voltage level phase relationship and frequency are within the selected synchronising limits. We would like to show you a description here but the site won t allow us. Sync check relay synchronism check relay are relays that allow unattended synchronization of a machine with a system.
The synchro check relay can be used to assist in the semi automatic parallelling of two ac power systems. 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. Connecting two electrical systems that are not closely matched can cause expensive damage and disturbance to the electrical.