50
Table 15: Technical ratings
Footnotes:
1
Circuit breaker is in closed position.
2
User must supply external time delay (typically using setting in reclosing relay) for the minimum reclose time interval of 0.3 s in accordance with
ANSI/IEEE.
3
Consult factory for -50 °C.
4
First value is for stored-energy operator; value after slash is for magnetic-actuator operator
.
For magnetic-actuator operator, add 10 ms if
command power is ac.
Item
Unit
15.5 kV
27.6 kV
38.0 kV
Lightning impulse withstand voltage
Full wave 1.2/50 µs
Chopped wave 2 µs
1
Chopped wave 3 µs
kV
110
142
----
150
194
----
200
258
----
Power-frequency withstand voltage
kV
50
60
80
Rated short-circuit current
kA
20/25/31.5/40
20/25
20/25/31.5/40
%dc component
%
48
48
48
Rated closing and latching current
kA peak
52/65/82/104
52/65
52/65/82/104
Rated duty cycle
Reclosing duty
Non-reclosing duty
----
O-0.3 s-CO-3 min.-CO
O-15 s-CO
O-0.3 s-CO-3
min.-CO
O-15 s-CO
O-0.3 s-CO-3 min.-CO
O-15 s-CO
Minimum reclosing time
2
s
0.3
0.3
0.3
Rated power frequency
Hz
60
60
60
Capacitance switching
Overhead line
Isolated bank
Back-to-back
A
100
400
400
100
400
400
100
250
250
Phase spacing
(bushing center-to-center)
1,200 A
2,000 A
3,000 A
inches (mm)
13.0 (330)
13.0 (330)
16.0 (406)
16.0 (406)
16.0 (406)
----
19.5 (495)
19.5 (495)
2,500 A 19.5 (495)
External creep
inches (mm)
25.2 (640)
26.5 (673)
41.0 (1,040)
External strike-to-ground
inches (mm)
10 (255)
10 (255)
17 (480)
Operating temperature range
Standard
Optional
°C
-30 to +40
-40 to +40
3
-30 to +40
-40 to +40
3
-30 to +40
-40 to +40
3
Operating mechanism
----
Stored-energy/
magnetic-actuator
Stored-energy/
magnetic-
actuator
Stored-energy/magnetic-
actuator
Closing time
4
ms
≤65/≤55
≤65/≤55
≤70/----
Opening time by interrupting time
4
Three-cycle
Five-cycle
ms
≤38/≤33
≤56/----
≤38/≤33
≤56/----
≤38/≤----
≤56/----
Dual trip coils (mechanically and electrically
independent)
----
Optional
(stored-energy)
Optional
(stored-energy)
Optional
(stored-energy)
Auxiliary voltages (options)
Close, trip and protection
Space heaters, auxiliaries
----
Vac
See Table 11
120/240
See Table 11
120/240
See Table 11
120/240
Contact gap (stroke)
Vacuum interrupter type
1,200 A
2,000 A
3,000 A
mm
20/25
VSS-17006
7-9
7-9
----
20/25
VS-25008
13-15
13-15
----
31.5/40
VS-15052
7-9
7-9
7-9
VS-25008
13-15
13-15
----
VS-30030
18-22
18-22
(2,500) 18-22
VS-30041
18-22
18-22
18-22
Radio influence voltage (RIV) 1,000 kHz
μV
≤500
≤650
≤650
Seismic withstand (optional) (ANSI/IEEE 693-
2005 high-response spectrum)
g
0.5
0.5
0.5
Содержание SDV7-AR
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