HHD
Applications
Protection of Transformers Type C
Recommendation for the protection of transformer mains with HHD fuses without cable a LV fuse on the low voltage side for overload protection of the transformer, individual exits are protected with LV fuses operating class gL/gG.
HV Fuse Selection Guide
System Voltage( Line - Line) [kV]
6 - 7.2
10 - 12
15 - 17.5
20 - 24
30 - 36
Transformer Rating
Rated Current of Fuse
[kVA]
[A] 10
[A]
[A]
[A]
[A]
50
-
10
4 - 6.3- 6.3-
6.3
10
-
6.3
16
10 6.3
20 -
16 16
- - - - - - - - -
25 31.5 31.5 40
16 10 10 25 20 25
100 125 160 200 250 315 630 500 400 800
31.5
20 16
- -
40
10
20
- 20
50 20 25
20 25 25 20
31.5
25
25 20 16 20 16 10 10 10
-
16 - 16 -
- - - - - - - - -
20 40 25 63 63 20 80
31.5 -
- -
16
31.5 31.5 31.5
80 63
40
25
50 80 40 50
-
20 25 50 40 16 16
-
31.5
- 50 - - 25
50 -
125 100 100 160 160 200
- - - -
- - - - -
31.5 31.5
63 80
63 50 80
50 63
31.5
31.5 -
80 125 160
40
100 125 160
40
- -
80 100
63 63
- 50 31.5 - 50
- - 200 160 250
100 100
1 000 1 250 2 000 1 600
80
50
250
125 100 160
2x160 2x200
100 125
63 rrr2222reerrrrrr 2x40
portal: www.siballc.net e-mail: info@sibafuse.com
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