Eaton VacClad-W, Instructions For Installation, Operation, Maintenance

10

Instruction Booklet 

IB02201004E

Effective October 2017 
Revision #4

Instructions for installation, operation, and 

maintenance of 38 kV type VacClad-W, 

150 BIL switchgear indoor housings 

EATON

 www.eaton.com

3 .  From the floor or from the portable lifter, roll the transformer 

drawer into the auxiliary compartment until the drawer 

latches into place .  An audible “clicking” noise can be heard 

when the drawer latches in place .  Pull back on the drawer to 

confirm it is fixed and latched in place .  In this position, the 

drawer and transformer(s) are considered in the Disconnect 

position (see Figure 7) .

4 .  Verify the primary shutters remain closed (see Figure 7) .

Figure 8. Transformer Drawer.

Figure 9. Transformer Drawer in the Retracted Position.

F .  Install the front cover and check the transformer fuse static 

ground plunger devices:
1 .  Install and bolt the front compartment cover in place .  Lift 

the cover in line with the compartment and align the slots on 

the cover with the protruding brackets on the compartment 

side sheets (see

Figures 6 and 7) .  Push the cover into place 

and allow the cover to drop down to its final bolting location .  

Bolt the cover in place .  The transformer drawer is fitted with 

a safety plate that blocks access to the racking screw until 

the drawer is in the compartment and the front compartment 

cover is in place (see Figure 7) .

Fuse Tube 

Nut

Secondary 

Contacts

Contact 

Plunger

Fully 

Retracted 

Position

Lower Half 

Section of 

Drawer

Upper Half 

Section of 

Drawer

G .  Movement of the transformer drawer from the Disconnect posi-

tion to the Connect position:
1 .  Rotate the racking cover plate knob to expose the nut at the 

front of the racking screw on the transformer drawer (see 

Figure 6) .

2 .  Place the socket of the levering crank through the cover and 

onto the racking screw nut .  Rotate the levering crank clock-

wise until the transformer drawer is in the Connect position .  

The Connect position is reached when the torque limiter on 

the levering crank “breaks” free .  Check to make sure the pri-

mary and the secondary contacts (see

Figure 8) are engaged 

when the transformer drawer is in the Connect position .  Use 

the “lighting out” or “ringing” methods to verify .

3 .  Verify that the primary shutters are open and have operated 

properly .  The shutters can be viewed from within the closed 

compartment through the viewing window on the front 

cover .

4 .  The front cover can not be removed when a transformer 

drawer is in the Connect position .  The transformer drawer 

must be in the Disconnect position to remove the cover .  

When the drawer is moved to the Connect position, a 

mechanical linkage system on the compartment side sheet, 

operated by a bracket on the transformer drawer, engages 

a link with a bracket on the bottom left corner of the front 

cover, preventing the cover from being removed (see Figures 

6 and 7) .

H .  Movement of the transformer drawer from the Connect position 

to the Disconnect position:
1 .  Rotate the racking cover plate knob to expose the nut at the 

front of the racking screw on the transformer drawer (see 

Figure 6) .

2 .  Place the socket of the levering crank through the cover and 

onto the racking screw nut .  Rotate the levering crank coun-

ter-clockwise until the transformer drawer stops and is in the 

Disconnect position .

3 .  Verify that the primary shutters are closed and have operated 

properly .  The shutters can be viewed from within the closed 

compartment through the viewing window on the front 

cover .

4 .  The front cover can now be unbolted and removed because 

the drawer is in the Disconnect position .

I .  Disengaging and removing the transformer drawer from the aux-

iliary compartment .  Refer to the portable lift device instructions 

in the optional accessories section of this document for proper 

positioning of the lifting device prior to performing the following 

actions:
1 .  With the portable lifting device in position and the trans-

former drawer in the Disconnect position, grasp and firmly 

pull the red drawer release handle on the front of the drawer 

(see Figure 7) .  This will unlatch the drawer from the compart-

ment .

2 .  Pull the drawer onto the pan on the lifting device and latch 

the drawer in place on the lifter .

3 .  When removing the drawer from a lower compartment, it is 

only necessary to unlatch the drawer, pull, and roll the drawer 

directly onto the floor .

Step 12: Perform loading check on both the control and primary cir-

cuits to ensure the system is ready for operation .