Página 41 - elastimold

Versión de HTML Básico

United States
Tel: 901.252.8000
800.816.7809
Fax: 901.252.1354
Technical Services
Tel: 888.862.3289
www.tnb.com
H-101
Hi-Tech
®
FX Series Full-Range Current-Limiting Fuses
Power & High Voltage —
Elastimold
®
& Hi-Tech
®
Fuse Products
Recommended Trans-Guard
®
FX Mounted in Air at 40° C Ambient Temperature
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
22.9–24.9
c
34.5
c
A B A B A B A B A B A B A B A B A B A B
15
6
3
3
3
a
3
a
3
a
3
a
6
a
6
a
6
a
22.5
8
6
a
6
a
3
a
3
a
3
a
3
a
6
a
6
a
6
a
30
10
b
12
6
6
6
a
3
3
a
3
a
6
a
6
a
6
a
45
12 18
8
8
6
a
6
a
3
3
6
a
6
a
6
a
75
20 40 12 18 12
b
18
8
8
6
6
a
6
a
6
a
6
a
100
25 40 18 20 18 20
12 10
b
12
8
6
6
a
6
a
6
a
112.5
30 50 20 25 18 20 12
b
18
12
8
8
6
a
6
a
6
a
150
40 65 25 30 20 25 18 20 12 18 10
b
12 8
b
10
6
6
6
a
200
65 80 30 50 25 40 20 25 18 20 12
b
18 12
b
18
8
8
6
a
225
80 100 40 65 40 50 25 30 20 30 12 18 12
b
18 8 10
8
6
300
80 125 50 80 40 75 25 40 25 30 18 20 18 20
12 10 12
8
500
150
80 125 80 100 50 (65)
40 (65)
25 40 25 40 18 25 18 25 12
b
18
750
125 200 125 150 (65)
100 (65)
(80)
40 (65)
40 (65)
25 40 20 40 18 25
1000
200
150
100 (130)* (80)
(130)* (65)
100 (65)
80 30 50 30 50 20 25
1500
(160)* 200* (130)* 200
c
* 100 130* 80 130* 50
50
25 50
2000
200*
200
c
* 250
c
* 130* 200* 100 160*
40
2500
160* 200* 130* 200*
50
3000
200*
200*
Notes:
Column A = 140–200% of transformer rating and Column B = 200–300% of transformer rating.
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 6 times transformer full load current for 1 second and 3 times transformer full load current for 10 seconds.
* Indicates parallel fuse applications.
Ratings in parenthesis are 2.2"-dia. fuses (catalog numbers HTFX230065, HTFX230080 and HTFX240065).
a Fuse allows greater than 300% of transformer rating.
b Fuse allows greater than 200% of transformer rating.
c Recommendations limited to gndY-gndY transformers with no more than 50% delta connected secondary load. Phase-to-ground rated fuses are frequently
recommended for gndY-gndY three phase transformers.