Página 39 - elastimold

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United States
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800.816.7809
Fax: 901.252.1354
Technical Services
Tel: 888.862.3289
www.tnb.com
H-99
Hi-Tech
®
FX Series Full-Range Current-Limiting Fuses
Power & High Voltage —
Elastimold
®
& Hi-Tech
®
Fuse Products
Recommended Trans-Guard
®
FX Mounted in a Standard Drywell Canister in Oil (at a max. oil temp. of 100° C)
Fuse Voltage
Recommended Fuse Current Ratings (Amperes)
5.5kv
8.3kv
15.5kv
23kV
1-Phase
Transformer
kVA
Transformer 1-Phase Voltage Rating (kV) Phase-to-Ground
2.4
4.16
4.8
7.2
7.62
12
14.4
16
19.9
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
10
6
b
8
6
a
3
3
a
3
a
3
a
3
a
3
a
6
a
15
8
12
6
6
3
3
3
a
3
a
3
a
6
a
25
18
20
8
12
8
b
10
6
6
3
3
3
6
a
37.5
20
30
12
18 12
b
18
8
10
8
6
6
a
6
a
6
a
50
30
40
18
20
18
20
10
12
10
12
6
6
6
6
a
75
50
75
25
40
20
30
12
20
12
20
8
12
8
10
8
6
100
65 80*
30
50
25
40
20
25
20
25 12
b
18
10
12 10
b
12
8
167
100*
65 80*
50
65
30
50
30
50
20
25
18
25
18
20
12
18
250
80*
80*
50 60*
50 60*
25
40
20
40
20
30
18
25
333
100*
60*
100*
60*
100*
40 60*
30
50
25
40
20
30
500
60*
80*
50 80*
40 60*
40
50
750
80*
80*
60*
100*
1000
100*
Notes:
Column A = 140–200% of transformer rating and Column B = 200–300% of transformer rating.
Fuses recommended in bottom chart must be mounted in a 15.5kV mounting code 5 drywell canister.
Recommended fuses meet inrush criteria of 12 times transformer full load current for .1 second and 25 times transformer full load current for .01 second. Fuses also meet cold load pickup
criteria of six times transformer full load current for 1 second and three times transformer full load current for 10 seconds.
* Indicates parallel fuse applications.
a Fuse allows greater than 300% of transformer rating.
b Fuse allows greater than 200% of transformer rating.
Recommended 8.3kV Trans-Guard
®
FX Mounted in 15.5kV Drywell Canister in Oil (at a max. oil temp. of 100° C)
fuse Voltage
Recommended Fuse Current Ratings (Amperes)
8.3kV
1-Phase
Transformer
kVA
Transformer 1-Phase Voltage Rating (kV) Phase-to-Ground
2.4
4.16
4.8
7.2
7.62
A
B
A
B
A
B
A
B
A
B
75
80
100
65
80
167
X
160*
65
80
80
250
160*
80
130*
80
130*
65
65
333
130*
160*
X
160*
65
X
65
X
500
160*
160*
130*
130*
X=Use an 8.3kV Drywell Canister. See top chart for fuse recommendations.