ABB REU 610, Техническое справочное руководство

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47
Table 5.1.4.8.-2 Undervoltage protection, elements 27P-1, 27P-2 and
27D
Feature Element 27P-1 Element 27P-2 Element 27D
Set pickup value 27P-1, 27P-2
and 27D:
-at definite-time characteristic 0.20...1.20
×
U
n
(VT)
0.20...1.20
×
U
n
(VT)
0.20...1.20
×
U
n
(VT)
-at IDMT characteristic 0.20...1.20 × U
n
(VT)
0.20...1.20 × U
n
(VT)
0.20...1.20 × U
n
(VT)
Pickup time, typical 80 ms 50 ms 50 ms
Time/voltage characteristic:
-at definite operate time, 27P-1
TDLY and 27P-2 TDLY 0.10...600 s 0.10...600 s 0.10...600 s
-IDMT curve C curve C curve C
time dial 27P-1 TD and 27P-2
TD 0.10...2.00 0.10...2.00 0.10...2.00
Resetting time, typical/
maximum 70/80 ms
a)
70/80 ms 70/80 ms
Retardation time, typical 30 ms 30 ms 50 ms
Set resetting time, 27P-1
RESET 0.07...60.0 s - -
Drop-off/pick-up ratio, 27P-1
D/P 1.01...1.05 1.01...1.05 1.04
Operate time accuracy:
-at definite-time characteristic ± 2% of the set
operate time or
±
25 ms
± 2% of the set
operate time or
±
25 ms
± 2% of the set
operate time or
±
25 ms
-at IDMT characteristic ± 25 ms or the
accuracy
appearing when
the measured
voltage varies
± 3%
± 25 ms or the
accuracy
appearing when
the measured
voltage varies
± 3%
± 25 ms or the
accuracy
appearing when
the measured
voltage varies
± 3%
Operation accuracy ± 1.5% of the set
pickup value
± 1.5% of the set
pickup value
± 5% of the set
pickup value
a)
Resetting time of the trip signal.
Table 5.1.4.8.-3 Residual overvoltage protection, elements 59N-1 and
59N-2
Feature Element 59N-1 Element 59N-2
Set pickup value 59N-1 and 59N-2:
-at definite-time characteristic 2.0...80% U
n
(VT) 2.0...80% U
n
(VT)
Pickup time, typical 70 ms 60 ms
Time/voltage characteristic:
-definite-time operate time, 59N-1
TDLY, 59N-2 TDLY 0.10...600 s 0.10...600 s
Resetting time, typical/maximum 30/50 ms
a)
30/50 ms
a)
1MRS755972
Voltage Relay
Technical Reference Manual - ANSI Version
REU 610