ABB Relion 670 series - Setting parameters; Technical data; Four step phase overcurrent protection OC4 PTOC (51;67)

7.1.5 Setting parameters
Table 186: PHPIOC (50) Group settings (basic)
Name Values (Range) Unit Step Default Description
Operation Disabled
Enabled
- - Disabled Disable/Enable Operation
IBase 1 - 99999 A 1 3000 Base current
OpModeSel 2 out of 3
1 out of 3
- - 1 out of 3 Select operation mode (2 of 3 / 1 of 3)
Pickup 1 - 2500 %IB 1 200 Phase current pickup in % of IBase
Table 187: PHPIOC (50) Group settings (advanced)
Name Values (Range) Unit Step Default Description
MultPU 0.5 - 5.0 - 0.1 1.0 Multiplier for operate current level
7.1.6 Technical data
Table 188: PHPIOC (50) technical data
Function
Range or value Accuracy
Operate current (1-2500)% of lBase ± 1.0% of I
n
at I £ I
n
± 1.0% of I at I > I
n
Reset ratio > 95% -
Operate time 25 ms typically at 0 to 2 x I
set
-
Reset time 25 ms typically at 2 to 0 x I
set
-
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Operate time 10 ms typically at 0 to 10 x I
set
-
Reset time 35 ms typically at 10 to 0 x I
set
-
Critical impulse time 2 ms typically at 0 to 10 x I
set
-
Dynamic overreach < 5% at t = 100 ms -
7.2 Four step phase overcurrent protection OC4PTOC
(51/67)
1MRK505222-UUS C Section 7
Current protection
381
Technical reference manual