2
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
m
Danger
reaD anD unDerstanD this manual in its entirety before
installing or operating controller. installation, aDjustment,
repair anD maintenance of these controllers must be
performeD by qualifieD personnel. a qualifieD person is
one who is familiar with the construction anD operation
of this equipment anD the hazarDs involveD.
introduction
This instruction book is intended to cover the handling, installation,
operation, and maintenance of AMPGARD
T
300A, 15 kV starters
and associated equipment . The function of these controllers is
to start, stop, and protect medium voltage motors, transformers,
and other loads . Controllers may be of full voltage, reduced voltage
reactor, reduced voltage autotransformer, or two-speed type .
They may control induction or synchronous machines, and may
be non-reversing or reversing .
While this instruction book is dedicated primarily to full-voltage
starting, the other applications listed are an expansion of the
principles identified in this book . This book does not purport to
cover all possible contingencies, variations, and details that may
arise during operation or maintenance of this equipment .
If further information is desired regarding this product, contact
your local Eaton sales office .
Figure 1. 15 kV Starter with Incoming Cable Section
identification
A rating nameplate is located on the door of each controller .
Contained on this nameplate are the controller type and ratings as
required by industry standards . Also contained on this nameplate
is the factory’s general order number . This number should be given
to the Eaton sales office if a question should arise concerning the
equipment or if renewal parts are required . Refer to
Figure 2
for
typical location of rating nameplates .
Medium
Voltage
Door
Rating
Nameplate
Low
Voltage
Door
Figure 2. Starter with Rating Nameplate
m
Danger
exceeDing the nameplate ratings of an ampgarD controller
may cause equipment Damage, severe injury, or Death.
Do not apply an AMPGARD controller beyond its nameplate ratings .
Description
Controller
The AMPGARD 300A, 15 kV controller consists of a non-loadbreak
isolation switch, medium voltage current limiting fuses, one or
more Type SL 15 kV vacuum-break contactors, a set of current
transformers, plus control and protection devices . The isolating
switch has a limited make and break rating, suitable only for closing
and opening limited transformer magnetizing currents . The controller
is designed to start, stop, and protect a three-phase medium voltage
motor within the ratings shown in
Table 1
and
Table 2
. The controller
may also be used to switch transformer windings as shown . For
applications other than those indicated, consult the factory . Each
AMPGARD controller occupies all or a portion of a steel structure
that may also enclose a horizontal bus system to distribute power
to two or more sections and a vertical bus system to connect
individual starters to the horizontal bus . The controllers are
configured for full-voltage or reduced voltage starting, reversing
or non-reversing, in single-speed or two-speed applications .
