Technical Data - ABB Relion 670 Series Technical Reference Manual

1MRK 505 208-UEN B
Name Values (Range)
ResetTypeCrv4
tReset4
tPCrv4
tACrv4
tBCrv4
tCCrv4
tPRCrv4
tTRCrv4
tCRCrv4
HarmRestrain4
Table 93: OC4PTOC Non group settings (basic)
Name Values (Range)
MeasType
6.1.6
Technical reference manual
Unit
Instantaneous -
IEC Reset
ANSI reset
0.000 - 60.000 s
0.005 - 3.000 -
0.005 - 200.000 -
0.00 - 20.00 -
0.1 - 10.0 -
0.005 - 3.000 -
0.005 - 100.000 -
0.1 - 10.0 -
Off -
On
Unit
DFT -
RMS

Technical data

Table 94: OC4PTOC technical data
Function
Operate current
Reset ratio
Min. operating current
Maximum forward angle
Minimum forward angle
2nd harmonic blocking
Independent time delay
Minimum operate time
Inverse characteristics, see
table 483, table 484 and table
485
Table continues on next page
Step Default
- Instantaneous
0.001 0.020
0.001 1.000
0.001 13.500
0.01 0.00
0.1 1.0
0.001 0.500
0.001 13.500
0.1 1.0
- Off
Step Default
- DFT
Setting range
(1-2500)% of lBase
> 95%
lBase
(1-100)% of
(40.0–70.0) degrees
(75.0–90.0) degrees
(5–100)% of fundamental
(0.000-60.000) s
(0.000-60.000) s
19 curve types
Section 6
Current protection
Description
Selection of reset curve type for step 4
Reset time delay used in IEC Definite
Time curve step 4
Parameter P for customer programmable
curve for step 4
Parameter A for customer programmable
curve for step 4
Parameter B for customer programmable
curve for step 4
Parameter C for customer
programmable curve for step 4
Parameter PR for customer
programmable curve for step 4
Parameter TR for customer
programmable curve for step 4
Parameter CR for customer
programmable curve for step 4
Enable block of step 4 from harmonic
restrain
Description
Selection between DFT and RMS
measurement
Accuracy
± 1.0% of I at I ≤ I
r r
± 1.0% of I at I > I
r
-
± 1.0% of I at I ≤ I
r r
±1.0% of I at I > I
r
± 2.0 degrees
± 2.0 degrees
± 2.0% of I
r
± 0.5% ±10 ms
± 0.5% ±10 ms
See table 483, table
table 485
484 and
161