Substation protection relays

ERL_Relays

protection Relays

Easy-to-use, intuitive relays which are “future ready” for next generation applications.
Our relays and recorders provide smart, easy-to-use protection & monitoring of electrical power systems.

Multi-Function Numerical Relays:

B-PRO 4000 Bus Protection Relay (Supports up to 6 bays)

B-PRO 4000 Multi-Busbar Protection Scheme (Supports up to 24 bays)

L-PRO 4000 Transmission Line Protection Relay

L-PRO 4500 Transmission Line Protection Relay

T-PRO 4000 Transformer Protection Relay

T-PRO 4500 Transformer Protection Relay

S-PRO 4000 Sub-Harmonic Protection Relay Model 4001

Feeder Protection and Management Relays:

F-PRO 116: Feeder Protection Relay

F-PRO 215: Non-Directional Over Current Protection Relay, F-PRO 216: Non-Directional Over Current Protection Relay with SEF, F-PRO 235: Directional Multifunction Protection Relay, F-PRO 295: Voltage and Frequency Protection Relay

F-PRO 297: Feeder Management Relay F-PRO 298: Feeder Management Relay with Vsync

Single Function Auxiliary Relays:

TR High Speed Tripping Relay

XR351 Trip Circuit Supervision Relay