9
Instruction Booklet
IB48050
Effective September 2012
Instructions for installation,
operation, and maintenance of the
AMPGARD 15 kV, 300A vacuum starter
eaton Corporation
www.eaton.com
Review the order drawings supplied with the equipment for
information on the incoming connections for your specific equipment .
Ensure that all connections are tight and of the proper ampacity
to carry the rated load . Cables should be properly supported and
braced, with special attention to ensure that the insulation
is protected from damage .
Motor load cable termination
Motor load cable terminations are typically located in the left rear of
the controller compartment . Refer to
Figure 16
for location details .
In reduced voltage starters, the terminations are located in the
reduced voltage compartment . Load cables may exit either the top
or bottom of the structure . Ensure that the factory supplied phase
barriers are installed before energizing the starters . Note that the
left barrier is larger than the other barriers . The larger barrier must
be installed in the left-most position . Failure to properly install the
barriers can result in a flashover at the load connections .
Motor Load
Connections
Figure 16. Motor Load Connections, Shown With Optionally
Supplied Lugs
Removable Phase Barriers
Figure 17. Close-Up, Motor Load Connections
MV Conduit Cover
LV Conduit Cover
Removable
Lifting
Angles
Front
Structure
Rear
Structure
Figure 18. Top Cover (View from Front of Bus Compartment,
Back-to-Back Structures)
Control connections
Control wires may enter the enclosure from either the top or the
bottom . For lineups with main bus, a low voltage wireway is located
in the left front of the bus compartment to facilitate top entry of
control wiring . For controllers where bottom entry is used, wires
enter the lower left front of the enclosure . Refer to the order specific
drawings for locations for control wireways .
Terminal Blocks
Figure 19. Low Voltage Terminal Blocks and Vertical Wireway
A fixed row of terminal blocks for control connections is located in
the left front of the controller compartment . The starter isolation
switch should be in the disconnected position and the medium
voltage door open for wiring access to these terminal blocks .
When top entry of LV wiring is used, confirm that the wiring is
routed to the left and secured using wire ties as soon as possible
to prevent interference with the low voltage control compartment
when the medium voltage door is closed .