High impedance relay – Reyrolle 7PG23
The 7PG23 electro-mechanical single phase circulating current protection is used to detect earth faults in ‘high impedance’ protection schemes. The relay is typically applied in transformer protection schemes to provide restricted earth fault protection.
The 7PG23 electro-mechanical single phase circulating current protection is used to detect earth faults in ‘high impedance’ protection schemes. The relay is typically applied in transformer protection schemes to provide restricted earth fault protection.