ABB Relion 670 series - Page 734

13.1.4 Signals
PID-3482-INPUTSIGNALS v6
Table 421: CCSSPVC (87) Input signals
Name Type Default Description
I3P GROUP
SIGNAL
- Group signal for three phase current input
IREF GROUP
SIGNAL
- Residual reference current input
BLOCK BOOLEAN 0 Block of function
PID-3482-OUTPUTSIGNALS v6
Table 422: CCSSPVC (87) Output signals
Name Type Description
FAIL BOOLEAN Detection of current circuit failure
ALARM BOOLEAN Alarm for current circuit failure
13.1.5 Settings
PID-3482-SETTINGS v6
Table 423: CCSSPVC (87) Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Operation Disabled/Enabled
IMinOp 10 - 200 %IB 1 20 Minimum operate current differential
pickup in % of IBase
Table 424: CCSSPVC (87) Group settings (advanced)
Name Values (Range) Unit Step Default Description
Pickup_Block 20 - 500 %IB 1 150 Block of the function at high phase
current, in % of IBase
Table 425: CCSSPVC (87) Non group settings (basic)
Name Values (Range) Unit Step Default Description
GlobalBaseSel 1 - 12 - 1 1 Selection of one of the Global Base Value
groups
13.1.6 Operation principle
M12396-5 v9
Current circuit supervision CCSSPVC (87) compares the absolute value of the vectorial sum of the
three phase currents |ΣIphase| and the numerical value of the residual current |Iref| from another
current transformer set, see figure
388.
Section 13 1MRK 502 066-UUS B
Secondary system supervision
728
Technical manual