GE Industrial Solutions Entelliguard TU, MicroVersaTrip Plus and PM Conversion Kits - Manual (Page 4)

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SECTION 1. GENERAL INFORMATION
GE Conversion Kit installation is straightforward, but
does require careful workmanship and attention to
these instructions. Familiarity with the breaker is
highly desirable. The general approach is to first
remove the existing trip devices from the breaker,
then install the Entelliguard, MicroVersaTrip Plus and
MicroVersaTrip PM kit components. Following this
procedure, the converted breaker is performance
tested before it is returned to service.
The majority of trip unit kit installations do not
require any customized assembly work. However,
some conversions may involve unusual mounting
conditions or accessory combinations that require
minor modifications and/or relocation of compo-
nents. In most instances, this supplementary work
can be done on site.
In preparation for the conversion, the installer should
verify that the appropriate current sensors and trip
unit have been furnished. Whenever a ground-fault
trip element is installed on a breaker with a four-wire
system, an associated neutral sensor (CT) is required
for separate mounting in the equipment.
Ensure that retrofitted breakers are applied within
their short-circuit ratings. For example, when the trip
elements of the breaker are to be changed from long-
time instantaneous to long-time short-time, the short-
time rating will govern the application.
As a service-related consideration, the installation of
a Entelliguard, MicroVersaTrip Plus and
MicroVersaTrip PM kit provides an excellent
opportunity to perform normal maintenance on the
breaker. Such procedures are described in the
installation and maintenance manuals supplied with
the breaker and equipment.
SECTION 2. BEFORE INSTALLATION
Before starting any work, turn off and lock out all
power sources leading to the breaker, both primary
and secondary. Remove the breaker to a clean, well-
lighted work area.
WARNING: Low-voltage power circuit breakers use
high-speed, stored-energy spring operating
mechanisms. The breakers and their enclosures
contain interlocks and safety features intended to
provide safe, proper operating sequences. For
maximum personnel protection during installation,
operation, and maintenance of these breakers, the
following procedures must be followed. Failure to
follow these procedures may result in personal
injury or property damage.
• Only qualified persons, as defined in the
National Electrical Code, who are familiar with
the installation and maintenance of low-voltage
power circuit breakers and switchgear
assemblies, should perform any work on these
breakers.
• Completely read and understand all instructions
before attempting any breaker installation,
operation, maintenance, or modification.
• Turn off and lock out the power source feeding
the breaker before attempting any installation,
maintenance, or modification. Follow all lock-out
and tag-out rules of the National Electrical Code
and all other applicable codes.
• Do not work on a closed breaker or a breaker
with the closing springs charged. Trip the
breaker OPEN and be sure the stored-energy
springs are discharged, thus eliminating the
possibility that the breaker may trip open or the
closing springs discharge and cause injury.
• Trip the breaker OPEN, then remove the breaker
to a well-lighted work area before beginning
work.
• Do not perform any maintenance that includes
breaker charging, closing, tripping, or any other
function that could cause significant movement
of a draw-out breaker while it is on the draw-out
extension rails.
• Do not leave the breaker in an intermediate posi-
tion in the switchgear compartment. Always
leave it in the CONNECTED, TEST, or
DISCONNECTED position. Failure to do so could
lead to improper positioning of the breaker and
flashback.
• Refer to DEH-4567 for supplementary
instructions of settings of the Entelliguard
Electronic Trip Unit.
• Refer to DEH-3456 for supplementary
instructions for wiring the RELT circuit.