General Instructions
Operations sequence
62
cpg.1
Fully SF6 gas insulated single and double busbar GIS switchgears up to 36 kV in accordance
with IEC Standards
IG-137-EN version 03; 24/06/2016
7.10.1 Selection of fuses recommended for
cpg.1-f
The rated current of the fuses recommended for use in
the
cpg.1-f
cubicle are defined according to tests carried
out by the manufacturers. The following table shows the
recommended fuse ratings according to the U
n
/P
transf.
ratio:
U
r
(Network)
(kV)
U
r
(Cubicle)
(kV)
Transformer power (kVA)
100
125
160
200
250
315
400
500
630
800
1000
1250
10
24
16
25
25
40
40
40
63
63
100
100
125
160
13.8
24
10
16
16
25
25
40
40
63
63
100
100
125
15
24
10
16
16
25
25
40
40
40
63
63
100
100
20
24
10
16
16
25
25
25
40
40
63
63
63
100
25
36
10
10
16
25
25
25
40
40
40
40
40
63
30
36
10
10
16
16
25
25
40
40
40
40
40
63
General operating conditions
:
Overload < 20% and Temperature < 40 ºC
Shaded areas
:
Overload < 30% and Temperature < 50 ºC
Maximum permitted power loss for a fuse
:
< 75 W (55 W for U
r
= 10 kV)
Transfer currents according to IEC 62271-105
The transfer currents have been tested in accordance with
the following parameters:
U
r
Fuse
(kV)
U
r
Cubicle
(kV)
I
r
Fuse
(A)
I
transfer
(A)
24
24
63
800
36
36
40
800
Summary of Contents for Ormazabal cpg.1 Series
Page 67: ......
