Fault Record And Trip Counter; Event Log - ABB REF601 Applications Manual

Section 2
REF601/REJ601 overview
2.4.2
2.4.3
10

Fault record and Trip counter

The relay stores records of analog values for last five trip events in non-volatile
memory. The fault recording is triggered by the trip signal of a protection function.
Each fault record includes the rms current values of fundamental component for all
three phases and the neutral current at five different times along the trip event.
Figure 2: Fault record
These records enable the user to analyze the five most recent power system events.
The oldest recording is lost when a new fault recording is made.
Additional, the relay count the number of phase fault trip and earth fault trip into
dedicated trip counters. These trip counters cannot be reset by the user and are
stored in nonvolatile memory.
The values of fault records and trip counters are accessible locally LHMI and
remotely via communication interface of the relay.

Event Log

To collect sequence-of-events (SoE) information, the relay incorporates a non-
volatile memory to store 100 event logs. Each event log includes type of event
along with date and time stamping.
recent being first and so on.
The SoE information are accessible locally via LHMI and remotely via
communication interface of the relay.
The event logs are stored sequentially, the most
1MDU07212-YN Rev. A
REF601 / REJ601
Application Manual