27
Technical data
Table 6: Minimum trip currents
Characteristic
Unit
Voltage class
Rated maximum voltage U
r
kV
15.5
27.0
Rated continuous current I
r
A
630, 800
630, 800
Rated lightning impulse withstand voltage U
p
kV
110
125
Power frequency insulation level withstand test voltage (one
minute dry) U
d
kV
50
60
Rated symmetrical interrupting current I
sc
kA
12.5, 16
12.5
Rated asymmetrical making current (rms)
kA
20, 25
20
Rated peak making current
kA
32.5, 41
32.5
Mechanical life (operating cycles)
OPS
10,000
10,000
Permissible short-circuit operations
OPS
up to 250
up to 250
Ambient temperature range
ºC
-40 to +55
-40 to +55
Centerline spacing between phases
in (mm)
14.8 (376)
14.8 (376)
Flashover distance
Unit
Phase/phase
in (mm)
12.3 (312)
12.3 (312)
Phase/ground (earth)
in (mm)
10.4 (265)
10.4 (265)
Creepage distance
Unit
Phase/ground (earth)
in (mm)
31.9 (810)
31.9 (810)
Between line-side and load-side terminal
in (mm)
46.1 (1,170)
46.1 (1,170)
Table 5: Main characteristic data
Protective function
Unit
Minimum trip current
Phase faults
A
40
40
Ground (earth) faults
A
4
4
Sensitive ground (earth) faults
A
4
4
Table 7: Operating times
Operation time
Unit
Time
Closing time
ms
<60
<60
Opening time
ms
<35
< 35
Arcing time
ms
<15
<15
Interrupting time
ms
<50
<50
Table 8: Dead times for recloser
cycle (reclosing interval)
Dead time
Unit
Time range
Dead time after first open
s
0.2 to 14,400
0.2 to 14,400
Dead time after second and third open
s
2 to 14,400
2 to 14,400
Dead time after fourth open
s
30 to 14,400
30 to 14,400
Содержание SDR 15.5
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