Access to the Cable Compartment from Front Side
To access the cable compartment from front side (AFL):
Opening of Cable Compartment Door
To open the cable compartment door:
-
Release the securing bolts (2) on the cable compartment (1) with standard double-bit key. Refer to Figure 54.
-
Swing the cable compartment door (3) to open it.
-
The cable compartment is now accessible from the front.
Figure 54
Access to Cable Compartment
|
1 |
Cable compartment |
|
2 |
Securing bolts |
|
3 |
Cable compartment door |
Removal of Fuse, VT, and Surge Arrester from 12/17.5 kV Cubicle
Removal of Fuse
-
Press the fuse lock (1) , and pull the fuse (2) upwards.
-
Remove the fuse (2). Refer to Figure 55.
Removal of VT
-
Unscrew the M10 screws (4) and remove the washer (5) provided on the mounting plate (6) on the either side of VT (7). Refer to Figure 55.
-
Remove the fuse lock (2) from fuse connection copper bar (3) and VT connection copper bar (8).
-
Remove the VT (6).
Figure 55
Removal of
Fuse and VT 12/17.5 kV
|
1 |
Fuse lock |
5 |
Washer |
|
2 |
Fuse |
6 |
Mounting plate |
|
3 |
Fuse connection copper bar |
7 |
VT |
|
4 |
M10 screws |
8 |
VT connection copper bar |
Removal of Surge Arrester Assembly
-
Unscrew the M12 screws (4) provided on both sides. Refer to Figure 56.
-
Remove the terminal copper bar (2) from the VT connection copper bar (1).
-
Remove the surge arrester (3). Refer to Figure 56.
Figure 56
Removal of Surge Arrester
Assembly 12/17.5 kV
|
1 |
VT connection copper bar |
3 |
Surge Arrester |
|
2 |
Terminal copper bar |
4 |
M12 Screws |
Removal of Fuse, VT, and Surge Arrester from 24 kV Cubicle
Removal of Fuse
-
Press the snap lock (1) of the fuse box, and pull it upwards.
-
Remove the fuse (2). Refer to Figure 57.
Removal of VT
-
Unscrew the M10 screws (3) and remove the washer (4) provided on the mounting plate (5) on the either side of VT (6). Refer to Figure 57.
-
Unscrew fixed VT connection copper bar (7) to the CT-VT connector (8) to access the VT.
-
Remove the VT (6).
Figure 57
Removal of Fuse and VT 24
kV
|
1 |
Snap lock |
5 |
Mounting plate |
|
2 |
Fuse |
6 |
VT |
|
3 |
M10 screws |
7 |
VT connection copper bar |
|
4 |
Washer |
8 |
CT-VT connector |
Removal of Surge Arrester Assembly
-
Unscrew the M10 screws (1) provided on both sides. Refer to Figure 58.
-
Remove the terminal copper bar (2) from the VT connection copper bar (1).
-
Remove the surge arrester (2). Refer to Figure 48.
Figure 58
Removal of Surge Arrester
Assembly 24 kV
|
1 |
VT connection copper bar |
3 |
Surge Arrester |
|
2 |
Terminal copper bar |
4 |
M10 Screws |
After removing the fuse, VT, and surge arrester the cable compartment is fully accessible.
DANGER |
|---|
|
HAZARD OF ELECTRIC SHOCK, EXPLOSION OR ARC FLASH
Failure to follow these instructions will result in death or serious injury.
|
Closing the Cable Compartment Door
After completing assembly work, Close the cable compartment door (1) and lock the securing bolts (2) with standard double-bit key. Refer to Figure 54.
DANGER