ABB RELION REX640, Техническое руководство, Страница: 1729 / 1960

9.10.10 Technical data
Table 1587: OL5ATCC 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.
Reset ratio for control operation
Reset ratio for analog based blockings (ex-
cept run back raise voltage blocking)
Typically 0.80 (1.20)
Typically 0.96 (1.04)
9.10.11 Technical revision history
Table 1588: OL5ATCC Technical revision history
Product connectivity
level
Technical revision Change
PCL2 B
Added new output
TAP_DIFF
for indicating
the difference in tap position between mas-
ter and follower
Changed the
Band width voltage
minimum
value to "1.00"
Added setting
Inst out of step Cor for en-
abling triggering of instant out-of-step se-
quence in M/F mode
PCL4 C Added new inputs I3P2, U3P2, PWR_DIR. Add-
ed new output REV_REG. Added new set-
tings Regulation mode , Step of Tap , Tap nom-
inal
and
Impedance voltage
. Updated the im-
plementation to handle HV side regulation
during reverse power flow from stronger
sources.
1
Default setting values used.
2
Voltage before deviation = set
Band center voltage.
1MRS759142 F Control functions
REX640
Technical Manual
1729