Operations sequence
General instructions
37
cpg.1
GIS-type medium-voltage switchgear with full insulation in gas, up to 38 kV,
in accordance with IEEE Standards
IG-197-US version 02; 07/11/2019
6. To close the cover, first make sure that the clip (a) is
correctly engaged, and then turn the handle (b) down
into its vertical position.
Figure 7.30
Clip correctly engaged in
cpg.1-f
Figure 7.31
Handle in vertical position to close the cover
7.5.1 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
(Grid)
(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)
Up to 36
Up to 36
40
820
Summary of Contents for velatia cpg.1
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