Relay Data; Event Register - GE MLP1000 Manual

5.3 RELAY DATA

The following sections will explain the complementary information, supplied by the
relay. The rest of the information such as: view settings and their modifications, operations,
settings configuration, etc. is sufficiently explained in the corresponding sections of this
manual.

5.3.1 EVENT REGISTER

The MLP contains an internal event register which logs all actions produced by the
relay.
Each event is composed of, in addition to the previous information, the following
data:
- Indication of the activation of measurement unit AG in zone I
- Indication of the activation of measurement unit BG in zone I
- Indication of the activation of measurement unit CG in zone I
- Indication of the activation of measurement unit AB in zone I
- Indication of the activation of measurement unit BC in zone 1
- Indication of the activation of measurement unit CA in zone 1
- Indication of the activation of measurement unit AG in zone 3
- Indication of the activation of measurement unit BG in zone 3
-- Indication of the activation of measurement unit CG in zone 3
- Indication of the activation of measurement unit AB in zone 3
- Indication of the activation of measurement unit BC in zone 3
- Indication of the activation of measurement unit CA in zone 3
- Indication of a critical error
- Indication of a non-critical error
- Breaker status
- Protection status
- Recloser status
- The current of each phase and the zero sequence
- The voltage of each phase
The register is maintained as a circular stack with a limit of 240 events. Once the
limit is exceeded the latest events will be stored in the fields of the first events registered.
This means that event number 241 will be stored in the field of event 1 overwriting it's
previous contents.
In some cases you may not wish to record certain events which have no
importance. Through the use of a mask, you can program only those events which you
wish to register.
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