ABB Relion 670 Series RES670, Technical Manual

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Name Type Default Description
AMBTEMP REAL 0 Ambient temperature from external temperature sensor
SENSFLT BOOLEAN 0 Validity status of ambient temperature sensor
RESET BOOLEAN 0 Reset of internal thermal load counter
Table 124: LCPTTR (26) Output signals
Name Type Description
TRIP BOOLEAN Trip
BFI_3P BOOLEAN Pickup Signal
ALARM BOOLEAN Alarm signal
LOCKOUT BOOLEAN Lockout signal
Table 125: LFPTTR (26) Output signals
Name Type Description
TRIP BOOLEAN Trip
BFI_3P BOOLEAN Pickup Signal
ALARM BOOLEAN Alarm signal
LOCKOUT BOOLEAN Lockout signal
8.5.5 Settings
Table 126: LCPTTR (26) Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Operation Disabled/Enabled
TRef 0 - 300 Deg C 1 90 Final temperature rise above ambient of the
line when loaded with IRef
IRef 0 - 400 %IB 1 100 The load current (in % of IBase) leading to TRef
temperature
IMult 1 - 5 - 1 1 Current multiplier when function is used for two
or more lines
Tau 1 - 1000 Min 1 45 Time constant of the line in minutes.
AlarmTemp 0 - 200 Deg C 1 80 Temperature level for pickup (alarm)
TripTemp 0 - 300 Deg C 1 90 Temperature level for trip
ReclTemp 0 - 300 Deg C 1 75 Temperature for reset of lockout after trip
tPulse 0.05 - 0.30 s 0.01 0.10 Operate pulse length. Minimum one execution
cycle
Table continues on next page
1MRK 511 365-UUS A
Section 8
Current protection
Phasor measurement unit RES670 2.1 ANSI 243
Technical manual