Application - ABB RELION Series Technical Manual

Section 8
Measurement functions
8.2.4
598
combined with logical functions, for example AND and OR. The name of the binary
channel can be configured and modified by writing the new name to the Channel id
text parameter of the corresponding binary channel.
Note that the Channel id text parameter is used in COMTRADE configuration files as
a channel identifier.
The recording always contains all binary channels of the disturbance recorder. If one
of the binary channels is disabled, the recorded state of the channel is continuously
FALSE and the state changes of the corresponding channel are not recorded. The
corresponding channel name for disabled binary channels in the COMTRADE
configuration file is Unused BI.
To enable or disable an analog or a binary channel of the disturbance recorder, the
Operation parameter of the corresponding analog or binary channel is set to "on" or
"off".
The states of manual triggering and periodic triggering are not included in the
recording, but they create a state change to the Periodic triggering and Manual
triggering status parameters, which in turn create events.
The TRIGGERED output can be used to control the indication LEDs of the protection
relay. The TRIGGERED output is TRUE due to the triggering of the disturbance
recorder, until all the data for the corresponding recording has been recorded.
The IP number of the protection relay and the content of the Bay name
parameter are both included in the COMTRADE configuration file for
identification purposes.

Application

The disturbance recorder is used for post-fault analysis and for verifying the correct
operation of protection relays and circuit breakers. It can record both analog and
binary signal information. The analog inputs are recorded as instantaneous values and
converted to primary peak value units when the protection relay converts the
recordings to the COMTRADE format.
COMTRADE is the general standard format used in storing
disturbance recordings.
The binary channels are sampled once per task execution of the disturbance recorder.
The task execution interval for the disturbance recorder is the same as for the
protection functions. During the COMTRADE conversion, the digital status values
are repeated so that the sampling frequencies of the analog and binary channels
correspond to each other. This is required by the COMTRADE standard.
1MRS758755 A
REC615 and RER615
Technical Manual