MRG3-IE Generator Protection Device (MRG3I1E1D)
Request an offer
Prices incl. VAT plus shipping costs Please configure your device with the selection fields available below. You must select a value for each field and then you can submit a price request.
Configuration
The MRG3-IE is a universal mains decoupling device that covers all protection functions which are required by utilities for the mains parallel operation of power stations such as:
over/and under voltage protection,
over/and under frequency protection,
extremely fast generator mains decoupling in case of vector surges or rate of change of frequency df/dt
The MRG3 can furthermore be equipped with a multi-purpose over current time and earth fault protection relay and it has been designed as to be also used for grids with isolated and compensated star points respectively. It is applicable for the mains parallel operation of power generating gensets and includes the following protection functions.
Independent (Definite) time over current relay,
dependent time over current relay with selectable characteristics, independent short circuit protection
two-element (low and high set) earth fault protection with definite or inverse time characteristics
19“ racks – fully withdrawable
Door mounting – withdrawable and sealable
Panel mounting – fully withdrawable
Fault / disturbance recorder
Intuitive HMI
Display (of primary values)
Easy setting software – Smart view
Compact form factor
Protection of electrical (HV, MV) synchronous generators against:
Managing Overload by Load shedding by ROCOF, Underfrequency,…
Stator Earth Fault / insulation damages
Rotor Earth fault detection
Insulation damage due to overvoltage
Overfrequency, Underfrequency (over-/underspeed)
Vector surge protection against asynchrounous coming back of grid voltage after power outage (e.g. caused by auto reclosure)