64
MOU NTI NG A N D OPE R ATI ON M A N UA L
I N D O O R A I R S W I TC H - D I S CO N N EC TO R , N A L /N A L F/ V R
Rated
system
voltage
[kV]
Transformer
Fuse-link
Switch-fuse
combination
dedicated
type
Rated
power S
R
[kVA]
Relative
impedance
voltage
uk [%]
Rated
current I
R
[A] 100%
Rated
current I
R
[A] 120 %
Type
Rated
voltage
U
R
[kV]
Rated
normal
current
I
R
[A]
Length
e [mm] Catalogue number
15 - 17.5
50
4
1.90
2.28
CEF
10/17.5
6.3
292
367
442
1YMB711713M2512
1YMB711713M3512
1YMB711713M4512
NALF 17.5 kV
75
4
2.90
3.48
CEF
10/17.5
10
292
367
442
1YMB711716M2512
1YMB711716M3512
1YMB711716M4512
100
4
3.80
4.56
CEF
10/17.5
10
292
367
442
1YMB711716M2512
1YMB711716M3512
1YMB711716M4512
125
4
4.80
5.76
CEF
10/17.5
10
292
367
442
1YMB711716M2512
1YMB711716M3512
1YMB711716M4512
160
4
6.20
7.44
CEF
10/17.5
16
292
367
442
1YMB711718M2512
1YMB711718M3512
1YMB711718M4512
200
4
7.70
9.24
CEF
10/17.5
16
292
367
442
1YMB711718M2512
1YMB711718M3512
1YMB711718M4512
250
4
9.60
11.52
CEF
10/17.5
20
292
367
442
1YMB711719M2512
1YMB711719M3512
1YMB711719M4512
315
4
12.10
14.52
CEF
10/17.5
20
292
367
442
1YMB711719M2512
1YMB711719M3512
1YMB711719M4512
400
4
15.40
18.48
CEF
10/17.5
25
292
367
442
1YMB711721M2512
1YMB711721M3512
1YMB711721M4512
500
4
19.20
23.04
CEF
10/17.5
31.5
292
367
442
1YMB711724M2612
1YMB711724M3512
1YMB711724M4512
630
4
24.20
29.04
CEF
10/17.5
40
292
367
442
1YMB711725M2612
1YMB711725M3512
1YMB711725M4512
800
5
30.80
36.96
CEF
10/17.5
40
292
367
442
1YMB711725M2612
1YMB711725M3512
1YMB711725M4512
1000
5
38.50
46.20
CEF
10/17.5
50
292
4)
367
442
1YMB711727M2812
4)
1YMB711727M3612
1YMB711727M4612
1250
5
48.10
57.72
CEF
10/17.5
63
292
4)
367
442
1YMB711729M2812
4)
1YMB711729M3612
1YMB711729M4612
1600
6
61.60
73.92
CEF
10/17.5
80
292
4)
367
442
1YMB711731M2812
4)
1YMB711731M3612
1YMB711731M4612
2000
6
77.00
92.40
CEF
10/17.5
100
292
367
442
1YMB711733M2812
1YMB711733M3812
1YMB711733M4612
2500
6
96.20
115.44
CEF
10/17.5
125
367
4)
442
1YMB711735M3812
4)
1YMB711735M4812
—
1)
Fuse link is not able to clear independently transformer secondary side terminals short circuit current
2)
Available for 100% load only