4 | Technical data
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8DJH • Installation and Operating Instructions • Version 11 • 500-8384.9
4.2 Three-position switch-disconnector
Tab. 14:
Switching capacity for switch-disconnector according to IEC/EN 62271-103 / VDE 0671-103
Rated voltage U
r
kV
7.2
12
15
17.5
24
Test duty TD
load
Rated mainly active
load-breaking cur-
rent I
load
100 operations
I
load
[I
1
]
A
630
20 operations
0.05 I
load
[I
1
]
A
31.5
Test duty TD
loop
Rated closed-loop breaking current
I
loop
[I
2a
]
A
630
Test duty TD
cc
Rated cable-charging breaking current
I
cc
[I
4a
]
A
68
Test duty TD
Ic
Rated line-charging breaking current
I
Ic
[I
4b
]
A
68
Test duty TD
ma
Rated short-circuit making current
I
ma
50 Hz up to
kA
63
50/52.5
1)
60 Hz up to
kA
65
52/55
1)
Test duty TD
ef1
Rated earth-fault breaking current
I
ef1
[I
6a
]
A
200
Test duty TD
ef2
Rated cable-charging breaking current and
rated line-charging breaking current under
earth-fault conditions
I
ef2
[I
6b
(√3 · I
4a
)
or I
6b
(√3 · I
4b
)]
A
115
Number of mechanical operating cycles / classification
n
1,000 / M1
Number of electrical operating cycles with I
load
/ Classification
n
100 / E3
Number of short-circuit making operations with I
ma
/ Classification
n
5 / E3
C-classification
for switch-disconnector (no restrikes, TD: I
cc
, I
Ic
)
C2
1)
Design option
Tab. 15:
Switching capacity for make-proof earthing switch according to IEC/EN 62271-102 /
VDE 0671-102
Rated voltage U
r
7.2
12
15
17.5
24
Rated short-circuit making current I
ma
50 Hz
up to
kA
63
50/52.5
1)
60 Hz
up to
kA
65
52/55
1)
Number of mechanical operating cycles / classification
n
1000 / M0
Number of short-circuit making operations / Classification
n
5 / E2
1)
Design option
Tab. 16:
Switching capacity for switch-fuse combination according to IEC 62271-105 /
VDE 0671-105
Rated voltage U
r
kV
7.2
12
15
17.5
24
Rated normal current I
r
A
200
1)
Rated transfer current I
transfer
A
1500
1300
Maximum transformer rating
kVA
1000
1250
1600
1600
2000
Tripping time for striker operation
ms
≥50 ms
Tripping time for release operation
ms
≥130 ms
Setting time for delay at the protection device
ms
≥100 ms
1)
Depending on HV HRC fuse-link
Tab. 17:
Switching capacity for make-proof earthing switches (with HV HRC fuse-links on feeder
side)
Rated voltage U
r
kV
7.2
12
15
17.5
24
Rated short-circuit making current I
ma
50 Hz
kA
6.3
60 Hz
kA
6.5
Rated short-time withstand current
I
k
with t
k
= 1 s
kA
2.5
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