Numerical Directional Overcurrent Protection Relay Type By Easun Reyrolle Ltd.

We are the famous manufacturer and supplier of Numerical Directional Overcurrent Protection Relay Type in Hosur, Tamil Nadu, India. The directional members of the family provide the ability to apply bi-directional control to each protection stage independently.Different settings can be applied for operation in the forward and reverse zones. The advantage of this capability is that a single relay can perform the function of two traditional directional relays. Phase-fault directional elements are polarised by the quadrature phase-phase connection, and earth fault elements are polarised by the system residual voltage obtained from the open delta tertiary winding of a voltage transformer or alternatively the relay will itself calculate the residual voltage internally from the three applied phase to neutral voltages. Alternatively, current polarised earth fault elements are available. Characteristic angles (or MTA) are selectable.