Schweitzer Engineering Laboratories, Inc. has announced three new additions to the popular SEL-787 family of differential protection relays, providing low-cost, versatile transformer differential ...

Cooper Power Systems has designed its full-featured differential relay, the iXP-420, to provide comprehensive two-winding transformer protection, and monitoring and control. The iXP-420 incorporates ...

Abstract: The trip characteristic of a differential protection relay is a function: I/sub differential/=f(I/sub restraint/). Beside the normal differential currents caused by the magnetizing current ...

Protective relay training offers a comprehensive overview of power system protection, relay schemes, digital and electromechanical relays, fault detection, coordination & practical relay settings, ...