64
Instruction Booklet
IB022018EN
Effective July 2020
Instructions for the installation and
EATON
www.eaton.com
Figure 113. VT front lift final position.
m
DANGER
ENERGIZED PARTS WILL CAUSE SERIOUS INJURY OR DEATH. DO NOT
CONNECT A PLUG-IN TYPE VOLTAGE TRANSFORMER WHILE THE XGIS
SWITCHGEAR IS ENERGIZED.
BEFORE INSTALLING OR REMOVING THE VOLTAGE TRANSFORMER, CUT
POWER TO THE RELEVANT BUSES AND GROUND THEM ACCORDING TO
REGULATIONS.
5.14.2 Voltage transformer installation
Top voltage transformer compartment mounted VTs (fused and
unfused)
Installing a top-mounted fused VT and its mounting bracket is
facilitated by the VT Installation/Removal tool, Eaton catalog number
87A1060G01
. Eaton will furnish one tool per XGIS lineup. This tool is
composed of three elements, and additional tools can be purchased
from Eaton or purchased from McMaster-Carr using the following
catalog numbers:
ote:
N
some applications will require that the VT mounting brackets be fitted
with fuse blocking plates to prevent access to the VT fuses without removing
the VT.
Figure 114.
Metal-Clad
Plug-in VT
(One per phase)
VT Lifting /
Mounting
Bracket
Fused VT
Mounting
Bracket
Brace
Fuse Blocking Plate
Welded to Mounting Bracket
(One per phase)
VT lifting / mounting brackets with fuse blocking
plates installed.
Table 13. Top VT installation tool components
Catalog
Number
Description
5522A39
3/8” square drive socket extension, 34 inches
7229A62
Magnet bit holder, 3/8” square drive, 1/4’ bit hex
shank
4309A16
Screw-holding 6 mm hex bit, 1/4”hex shank
One VT installation/removal tool set will be provided per lineup.
The voltage transformer is provided with a mounting bracket
installed. The mounting bracket also serves as an installation bracket.
Do not remove this bracket.
shows a fused bus VT with
its mounting bracket.
Voltage transformers are heavy - they can weigh as much as 165
lb. If it is necessary to install or remove a voltage transformer, care
must be taken to properly handle the voltage transformer in a safe
and secure manner.
Prepare the vertical section for VT installation
•
Remove the top sheet from the VT compartment. Loosen the VT
mounting bracket back brace to facilitate VT installation.
shows the VT bracket brace.
Voltage transformer lift truck
The VT lift truck comes in two designs to accommodate site ceiling
heights.
The high height design works best on sites where the control room
), while the low height design works
best for low ceilings.
With the high lift truck, a VT can be installed from the front of a
vertical section. The low height design requires that the vertical
section side sheet be removed, and the VT installed from the side
for lateral access to the VT compartments.