IG-123-EN version 11; 23/07/2021
72
Operations sequence
General instructions
cpg
.0: GIS medium-voltage switchgear,
gas insulated, up to 40.5 kV,
in accordance with IEC Standard
Recommended fuses
The fuses recommended for use in
cpg
.0-f and
cpg
.0-
fl cubicles are defined according to tests carried out
by the manufacturers. The following table shows the
recommended fuse ratings according to the U
n
/P
trafo
ratio:
U
n
(Network)
(kV)
U
n
(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 < 40ºC.
Shaded areas: Overload < 30% and Temperature < 50ºC Maximum fuse losses admitted: < 75 W (55 W for U = 10 kV).
Table 7.1.
Recommended fuse calibres
Transfer currents according to IEC 62271-105
The transfer currents have been tested in accordance with
the following parameters:
U
n
Fuse
(kV)
U
n
Cubicle
(kV)
I
n
Fuse
(A)
I
Transfer
(A)
Up to 36
Up to 36
40
820
Table 7.2.
Transfer current
Summary of Contents for velatia cpg.0
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