Transformer Differential

MR-DIFF

A comprehensive relay used for differential protection.

150mm(w)x150mm(h) withdrawable case construction with self-shorting CT contacts, M4 screw terminals and IP54 rated perspex cover

2x Tri-colour LEDs
2x Digital inputs
4x Changeover contact relay outputs
6x CT inputs 1A or 5A (3ph + 3ph)

Aux supply 80-265V ac/dc or low voltage 24-70V ac/dc
RS485 Modbus
Mini USB front port

MR-TD2

A comprehensive relay used for 2 winding transformer differential protection, allowing star-star, delta-delta, or star-delta, delta-star configurations.

The protection characteristic is sectioned and can operate differently within its 4 areas, Idiff 0, Idiff 2, Idiff 10, Idiff ∞

Measure current in each phase is displayed along with the differential current between phases.

192mm(w)x92mm(h) fixed case construction with screw terminals for the CT contacts

2×16 Character LCD
2x Tri-colour LEDs
4x Changeover contact relay outputs
2x Digital Input
6x CT inputs 1A or 5A (3ph + 3ph)

Aux supply 80-265V ac/dc or low voltage 24-70V ac/dc
RS485 Modbus
Mini USB front port[/expand]