ABB Relion 620 Series - Technical Data

Name Type Values (Range) Unit Description
PAR_UNIT_MCC Enum
0=No parall units
1=Trafo 1
2=Trafo 2
3=Trafos 1 and 2
4=Trafo 3
5=Trafos 1 and 3
6=Trafos 2 and 3
7=Trafos 1+2+3
Parallel units in-
cluded in MCC
calculation
OPR_CNT INT32 0...2147483647 Total number of
raise and lower
commands given
in the manual
and automatic
modes
OLATCC Enum
1=on
2=blocked
3=test
4=test/blocked
5=off
Status
9.5.9 Technical data
Table 1029: OLATCC Technical data
Characteristic Value
Operation accuracy
1
Depending on the frequency of the measured
current: f
n
±2 Hz
Differential voltage U
d
= ±0.5% of the meas-
ured value or ±0.005 × U
n
(in measured vol-
tages <2.0 × U
n
)
Operation value = ±1.5% of the U
d
for Us = 1.0
× U
n
Operate time accuracy in definite time mode
2
+4.0%/-0% of the set value
Operate time accuracy in inverse time mode
2
+8.5%/-0% of the set value
(at theoretical B in range of 1.1…5.0)
Also note fixed minimum operate time
(IDMT) 1 s.
Table continues on the next page
1
Default setting values used
2
Voltage before deviation = set
Band center voltage
Control functions 1MRS757644 H
1080 620 series
Technical Manual