Description

MAG10x

Universal Generator / Motor Protective Relay

• All-in-one unit combining Reverse Power, Overload, Over Current and Short Circuit functions

• “Predictor” early action feature

• One common alarm output eases installation

• “Pathfinder” function (Over Current and Short Circuit)

• One fast response analogue output (<50mS)

• Optional Slave Indicator

Application
The digitally controlled MAG10x generator guard combines Reverse Power (R/P), Overload (O/L), Over Current (O/C) and Short Circuit protection (S/C) in one unit. Features depend on selected model.

Available for 3-phase 3-wire (2W3) and 4-wire (3W4) systems.

Normally the auxiliary voltage is supplied from the monitored voltage input. Use step-down transformer for input voltage higher then 480VAC.

Relay operation depends on the selected model. Only three functions are available in each unit. Other combinations are available on request.

A trip timer will reset if the fault is removed during count-down. Remote alarm reset input. Fixed hysteresis prevents relay “chatter”.

Full functionality control during power-up/power-down, with 500mS power-out reservoir.

User settable trip levels and delays. Colour of LEDs indicates alarm status. LEDs flash during count-down.

The Pathfinder indicates the phase causing an overcurrent or short circuit trip by the flashing pattern of the relevant LED.

True RMS current measurements, not affected by any distorted waveform, provides precision (class 1.0) active/reactive power and highest up current protection. Less than 50mS processing time.

Fast response mA output signal proportional to FSD-range (A, V, Hz, kW or kVAr).

Optional slave indicator with scale and status display.

The unit meets IEC60092-504 and the relevant environmental and EMC tests specified in IEC60068/60092 and IEC61000/60533 respectively, to comply with the requirements of the major Classification Societies.