MFAC High Impedance Bus Differential Relay

Product Description

 MFAC High Impedance Bus Differential Relay

MFAC relays provide high-speed differential protection forvarious types of power system plants including generators, reactors, busbars,motors and the individual windings of power transformers. MFAC relays are fastand reliable due to simple electromechanical construction and operate as a highimpedance unit protection scheme with a wide range of setting.

Two versions for phase and earth fault protection

The MFAC relay operates as a high impedance unit protectionscheme, with settings determined by a series of resistors. The resistors areselected on a seven-way plug bridge.

MFAC 14, a single element version, is applied only whenearth fault protection is required. MFAC 34, comprised of three elements,provides both phase and earth fault protection.

Wide settings range with a simple, robust design

Ensuring high stability with through faults, MFAC relaysbenefit from a simple application technique. With 'tuned to rated frequency'and a wide settings range, the MFAC has a robust and straightforward design.