Auxiliary Relays Bitable Relay Combined Over Current & Earth Fault Relay Capacitor Protection Relay Earth Fault Voltage Relay Frequency Relay Fuse Failure Relay Feeder protection Relay Feeder Terminal High Burden Relay High Impedance Protection Relay Instantaneous Over current & Earth Fault Relay Inverse- Time Over Current & E/F Relay Motor Terminal Motor Protection Relay Over Fluxing Relay Power Directional Relay Synchro - Check Relay Traction Relay Transformer Differential Relay Trip Circuit Supervision Relay Time Delay Relay. ( Delay on Drop Off ) / (Delay on Pick Up) Under / Over Voltage Relay