efacec NORMAFIX - Start-Up; Essential Checking

NORMAFIX
20
In the case of fuses with striker:
 Remove the label of protection of the striker, when installing the fuse for the first
time;
 Make sure the striker is positioned correctly (upwards).
8.11 Definition of fuses
Power of
transformer
Transformer - primary voltage
10/11 kV
13.8 kV
15kV
20kV
24/25 kV
30 kV
kVA
Rated current (A) I
N
(**)
100
16
10
10
10
10
10
125
16
16
10
10
10
10
160
20
16
16
16
10
10
200
25
20
16
16
16
10
250
31.5
25
20
16
16
10
315
40
31.5
25
20
20
16
400
50
40
31.5
25
25
16
500
63
50
40
31.5
31.5
20
630
80
63
50
40
40
25
800
100
80
63
50
50
31,5
1000
125
100
80
63
63
40
1250
160
125
100
80
80
50
1600
160
(*)
125
100
(*)
(*)
2000
250
(*)
(*)
(*)
(*)
(*)
(*) The fuse definition must consider the power loss limits (indicated in the fuse documentation)
(**)To (IN a: –5ºC  T  +40ºC) and power transformer > 1000 kVA, the maximum intensity
of service 1.2 x IS.
9. START-UP
9.1 Essential checking
 Confirm the proper connection of the busbar, cable, earth circuits, measuring TF’s
and auxiliary LV circuits;
 Confirm the proper assembly of the fuses, busbar and cable field deflectors and
cable compartment panels;
 Confirm that the pressure indicator (if applicable) is in the green zone
9.2 Switchgear operations
 Confirm the proper functioning of the equipment and of the interlocking, by
operating the Switch and the Earthing Switch.
9.3 Voltage feeding
 Confirm that all devices are in “open” position.