ABB RELION 620 Series Technical Manual page 806

Section 4
Protection functions
4.12.3.6
4.12.3.7
Table 762: SRCPTOC Group settings (Basic)
Parameter
Alarm start value
Start value
Tuning harmonic Num
Operate delay time
Alarm delay time
Table 763: SRCPTOC Non group settings (Basic)
Parameter
Operation
800
Settings Alarm start value and Start value should be selected as such
that in normal operation SRCPTOC should not operate.
Signals
Table 760: SRCPTOC Input signals
Name
I_A
I_B
I_C
BLOCK
RESO_IN
Table 761: SRCPTOC Output signals
Name
ALARM
OPERATE
Settings
Values (Range) Unit
0.03...0.50 xIn
0.03...0.50 xIn
1...11
120...360000 ms
120...360000 ms
Values (Range) Unit
1=on
5=off
Type Default Description
SIGNAL 0 Phase A current
SIGNAL 0 Phase B current
SIGNAL 0 Phase C current
BOOLEAN 0=False Block signal for activating the blocking mode
BOOLEAN 0=False Input signal from higher frequency resonance
branch
Type Description
BOOLEAN Alarm
BOOLEAN Operate signal
Step Default
0.01 0.03
0.01 0.03
1 11
1 200
1 200
Step Default
1=on
1MRS757644 F
Description
Alarm limit for filtered harmonic currents
Tripping limit for filtered harmonic currents
indicating resonance condition
Tuning frequency harmonic number of the
filter branch
Operate delay time for resonance
Alarm delay time for resonance alarm
Description
Operation Off / On
Technical Manual
620 series