ABB REQ650 User Manual

If applicable, the counter can be set to stop or rollover to zero and continue counting
after reaching the maximum count value. The steady overflow output flag indicates
the next count after reaching the maximum count value. It is also possible to set the
counter to rollover and indicate the overflow as a pulse, which lasts up to the first count
after rolling over to zero. In this case, periodic pulses will be generated at multiple
overflow of the function.
12.6.2.1 Setting guidelines
The parameters for Limit counter L4UFCNT are set in the local HMI or PCM600.
12.7 Disturbance report
12.7.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Disturbance report DRPRDRE - -
Analog input signals A1RADR - -
Analog input signals A2RADR - -
Analog input signals A3RADR - -
Analog input signals A4RADR - -
Binary input signals B1RBDR - -
Binary input signals B2RBDR - -
Binary input signals B3RBDR - -
Binary input signals B4RBDR - -
Binary input signals B5RBDR - -
Binary input signals B6RBDR - -
12.7.2 Application
To get fast, complete and reliable information about disturbances in the primary and/
or in the secondary system it is very important to gather information on fault currents,
voltages and events. It is also important having a continuous event-logging to be able
to monitor in an overview perspective. These tasks are accomplished by the
disturbance report function DRPRDRE and facilitate a better understanding of the
power system behavior and related primary and secondary equipment during and after
a disturbance. An analysis of the recorded data provides valuable information that can
be used to explain a disturbance, basis for change of IED setting plan, improve
existing equipment, and so on. This information can also be used in a longer
perspective when planning for and designing new installations, that is, a disturbance
recording could be a part of Functional Analysis (FA).
Section 12 1MRK 505 291-UEN A
Monitoring
270
Application manual

ABB REQ650 Specifications

General

Brand	ABB
Model	REQ650
Category	Protection Device
Language	English