ABB Relion 670 Series RES670, Technical Manual

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• applicable to very long time accumulation (≤ 99999.9 hours)
• output
ACC_HOUR
presents accumulated value in hours and
ACC_DAY
presents accumulated value in days
• accumulated value is retained in a non-volatile memory
• any retained value is used as initiation value for the integration following by a
restart
• RESET: Reset of the accumulated value. Consequently all other outputs are also reset
•
independent of the input
IN
value
• reset the value of the nonvolatile memory to zero
• reset can be made by activation of input RESET or from LHMI or with
IEC61850 command
• ADDTIME: Manually add time to the currently accumulated time
•
the amount of time to be added is defined by a setting tAddToTime
• time is added through activation of input
ADDTIME
or from LHMI or with
IEC61850 command
• BLOCK: Freeze the accumulation and block/reset the other outputs
•
independent of the input
IN
value
•
BLOCK
request overrides
RESET
request
• Monitor and report the conditions of limit transgression
•
overflow if output ACC_HOUR > 99 999.9 hours
• alarm if output
ACC_HOUR
> tAlarm
• warning if output
ACC_HOUR
> tWarning
The
ACC_HOUR
output represents the accumulated time in hours and the
ACC_DAY
output represents the accumulated time in days.
tAlarm and tWarning are user settable time limit parameters in hours. They are also
independent of each other, that is, there is no check if tAlarm > tWarning .
tAddToTime is a user settable time parameter in hours.
tAlarm , tWarning and tAddToTime are possible to be defined with a resolution of 0.1 hours
(6 minutes).
The limit for the overflow supervision is fixed at 99999.9 hours. The outputs will reset and
the accumulated time will reset and pickup from zero if an overflow occurs.
16.10.6.1 Operation accuracy
The accuracy of TEILGAPC depends on essentially two factors
Section 16
1MRK 511 365-UUS A
Monitoring
582 Phasor measurement unit RES670 2.1 ANSI
Technical manual