MRS1 Negative Sequence Relay
The MRS1 relay is a negative sequence protection relay with universal application. It serves for negative sequence protection of three-phase generators.
With a large number of different tripping characteristics and adjustment possibilities, the tripping characteristic can be made suitable for almost every type of generator with regard to its special thermal time-constant.
There is a choice between an independent or an inverse time tripping characteristic.
In case of low unbalanced load, a warning is given after an adjustable time delay. In case of inadmissible high unbalanced load, the MRS1 relay trips in accordance with the set characteristic.
Benefits and Key Features
19“ racks – fully withdrawable
Door mounting – withdrawable and sealable
Panel mounting – fully withdrawable
Fault / disturbance recorder
Display (of primary values)
Easy setting software – Smart view
Compact form factor
Protection of electrical (HV, MV) synchronous generators against:
Negative sequence protection (ANSI / IEEE C37.2: 46)
|Inputs and Outputs|
|Current transformer inputs||3|
|Negative sequence protection||46||•|
|Housing is withdrawable||•|
|Housing suitable for 19” rack mounting||(Option)|
|Housing suitable for door mounting||(Option)|
|Housing suitable for mounting plate||•|