ABB REU 610, Техническое справочное руководство

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5.1.4.8. Technical data on protection functions
Table 5.1.4.8.-1 Overvoltage protection, elements 59P-1, 59P-2 and 47
Feature Element 59P-1 Element 59P-2 Element 47
Set pickup value 59P-1, 59P-2
and 47:
-at definite-time characteristic 0.60...1.40 × U
n
(VT)
0.80...1.60 × U
n
(VT)
0.05...1.00 × U
n
(VT)
-at IDMT characteristic 0.60...1.25 × U
n
(VT)
a)
0.80...1.25 × U
n
(VT)
a)
0.05...1.00 × U
n
(VT)
Pickup time, typical 60 ms 50 ms 50 ms
Time/voltage characteristic:
-definite-time operate time,
59P-1 TDLY, 59P-2 TDLY 0.06...600 s 0.05...600 s 0.05...600 s
-IDMT curve A curve A curve A
curve B curve B curve B
time dial, 59P-1 TD, 59P-2 TD 0.05...2.00 0.05...2.00 0.05...2.00
Resetting time, typical/
maximum 70/80 ms
b)
70/80 ms 70/80 ms
Retardation time, typical 30 ms 30 ms 50 ms
Set resetting time, 59P-1
RESET 0.07...60.0 - -
Drop-off/pick-up ratio, 59P-1
D/P 0.95...0.99 0.95...0.99 0.96
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
-
-0.05...0.15 × U
n
(VT) - - ± 10% of the set
pickup value
-0.15...1.00 × U
n
(VT) - - ± 5% of the set
pickup value
a)
Because of the maximum measured voltage (2 × U
n
(VT)), the setting value 1.25 is used for the
IDMT calculation if the set value is greater than 1.25. This makes the operate time faster than
the theoretical IDMT curve. However, the element always picks up according to the set value.
b)
Resetting time of the trip signal.
46
REU 610
Voltage Relay
Technical Reference Manual - ANSI Version
1MRS755972