Página 46 - elastimold

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H-106
Hi-Tech
®
SX Series Full-Range Current-Limiting Fuses
Power & High Voltage —
Elastimold
®
& Hi-Tech
®
Fuse Products
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
10
10
a
5
5
a
5
a
5
a
5
a
5
a
10
a
15
12
10
a
10
a
5
5
5
a
5
a
5
a
10
a
25
20
b
25
12
12
10
a
10
a
5
5
a
5
a
10
a
37.5
30
b
40
20
20
a
12
12
a
10
a
10
a
10
a
10
a
50
40
b
50 25
b
30 20
b
25
15
15
10
10
a
10
a
10
a
75
50
65
30
40 30
b
40 20
b
25
20
15
12
12
a
10
a
100
65 (100)
40
50 40
b
50
25
30
25
30
20
15
15
12
167
(150)
b
(175)
65 (100)
50
75
40
50 40
b
50
25
30 25
b
30 20
b
25
20
250
(150)
(225)
(100)
(150)
75 (100)
50
75
50
65 40
b
50
30
40 30
b
40 25
b
30
333
(225)
(150)
(175)
(150)
b
(175)
75
90
65
90
50
65
40
50 40
b
50
30
40
500
(250)
c
(175)
(250)
(150)
(225)
100 150 100 150 65
90
50
75
50
65
40
50
833
(250)
c
(250)
160
160
100 150 90 100 75
65
1000
(250)
c
160
c
150
100 150
1500
150
c
150
Note:
Column A = 140–200% of transformer rating and Column B = 200–300% of transformer rating. See additional notes on
page H-107
.
Recommended Trans-Guard
®
SX for Switchgear (mounted in a wet-well fuseholder with a max. oil temp. of 60° C)
Recommended Trans-Guard
®
SX for Switchgear: Protecting Delta Connected Transformers
(mounted in a wet-well fuseholder with a max. oil temp. of 60° C)
Fuse Voltage
Recommended Fuse Current Ratings (Amperes)
(5.5kV) 8.3kV
15.5kV
23kV
3-Phase
Transformer
kVA
Transformer 3-Phase Voltage Rating (kV) Phase-to-Phase
2.4
4.16
4.8
7.2–7.96
8.32
12.47
13.2–14.4
20.8
A
B
A
B
A
B
A
B
A
B
A
B
A
B
A
B
15
10
a
5
5
5
a
5
a
5
a
5
a
10
a
22.5
12
10
a
10
a
5
5
a
5
a
5
a
10
a
30
15
10
10
a
10
a
5
5
a
5
a
10
a
45
20
b
25
15
12
10
10
a
5
5
10
a
75
30
40
20
b
25
20
12
12
10
a
10
a
10
a
100
40
50
25
30
25
b
30
20
15
12a
10
a
10
a
112.5
40
65
30
b
40
25
30
20
20
a
12
12
a
10
a
150
65
75
40
b
50
30
40
25
b
30
20
b
25
15
15
10
200
75 (100)
50
65
40
50
30
40
25
30
20
20
12
225
75 (100)
50
75
40
65
30
40
30
b
40
20
b
25
20
15
300
(150)
b
(175)
65 (100)
65
75
40
50
40
b
50
25
30
25
30
20
500
(175)
(250)
(150)
b
(175)
(100)
(150)
65
90
50
75
40
50
40
b
50
25
30
750
(250)
(150)
(225)
(150)
(225)
90
150
75
100
d
50
75
50
65
40
b
50
1000
(225)
(175)
(250)
150 160 100
d
150
d
75
90
65
90
50
65
1500
(250)
c
(250)
160
150
d
100 150 100 150
65
2000
150
150
2500
150
c
150
3000
150
c
Note:
Column A = 140–200% of transformer rating and Column B = 200–300% of transformer rating. See additional notes on
page H-107
.