GE MicroVersaTrip PM - Trip Unit Functions and Cataloging

Micro
Versa
Trip
®
Pius
and
MicroVersaTrip
®
PM
Trip
Units
Chapter
1
.
Introduction
V
PTs
may
be
used
for
other
monitoring
functions
,
subject
to
reasonable
burden
limitations
.
Note
that
PTs
must
be
connected
in
a
specific
sequence
to
ensure
proper
phase
relations
and
power
-
flow
sensing
.
Each
PT
output
feeds
an
individual
voltage
condi
-
tioner
that
scales
the
nominal
voltage
to
approxi
-
mately
1.76
Vac
.
•
Top
right
comer
-
replacement
trip
unit
order
number
,
such
as
TT
09
N
031
,
and
date
-
of
-
manu
-
facture
code
of
the
trip
unit
,
such
as
E
301
=
.
•
Top
left
of
display
-
catalog
number
of
the
trip
unit
,
such
as
TT
32
LSPM
.
•
Top
right
of
display
-
sensor
rating
of
the
trip
unit
,
such
as
SENSOR
=
1600
A
.
•
Below
display
-
indicates
whether
the
unit
is
MicroVersaTrip
Plus
or
MicroVersaTrip
PM
.
There
are
two
more
labels
on
the
trip
unit
that
are
not
generally
visible
when
it
is
plugged
into
a
breaker
.
•
Top
of
unit
-
another
date
code
and
a
bar
code
,
used
for
manufacturing
only
.
•
Rear
of
unit
~
yellow
caution
label
.
Power
Requirements
A
small
amount
of
power
is
necessary
to
energize
the
liquid
crystal
display
(
LCD
)
during
setup
,
for
viewing
breaker
status
,
and
for
metering
displays
.
MicroVersaTrip
PM
trip
units
require
external
24
Vdc
control
power
for
operation
.
The
four
sources
of
such
power
are
the
following
.
•
Flow
of
current
-
Breaker
current
sensors
provide
sufficient
power
to
energize
the
LCD
when
at
least
20
%
of
the
sensor
’
s
ampere
rating
is
flowing
.
Function
Keys
There
are
four
function
keys
on
the
trip
units
,
marked
FUNCTION
,
SELECT
,
VALUE
,
and
ENTER
,
as
•
24
Vdc
control
poxoer
-
Breakers
with
illustrated
in
Figure
3
.
All
setup
,
status
,
and
metering
MicroVersaTrip
PM
trip
units
are
supplied
with
functions
and
displays
are
accessed
through
these
external
24
Vdc
power
that
,
whenever
present
,
keys
.
Control
power
is
necessary
to
operate
function
energizes
the
LCD
.
Some
breaker
models
that
keys
.
However
,
as
each
set
point
is
entered
,
it
is
are
configured
for
MicroVersaTrip
Plus
trip
stored
in
the
trip
unit
’
s
nonvolatile
memory
,
so
sub
-
units
may
be
optionally
equipped
to
accept
an
sequent
loss
of
power
does
not
lose
or
change
any
settings
.
external
24
Vdc
supply
.
•
MicroVersaTrip
Test
Kit
-
The
MicroVersaTrip
Test
Kit
,
Cat
No
.
TVRMS
,
contains
a
24
Vdc
power
supply
.
The
LCD
is
energized
whenever
the
test
kit
jack
is
plugged
into
the
test
recepta
-
cle
on
the
rating
plug
.
•
MicroVersaTrip
battery
pack
-
The
portable
MicroVersaTrip
battery
pack
contains
a
24
Vdc
power
source
and
a
jack
.
The
LCD
is
energized
when
the
jack
is
plugged
into
the
rating
plug
test
receptacle
.
m
mm
ip
!
i
IB
FUNCTION
SELECT
5
vsassas
gSSjj
:
:
:
:
:
:
:
:
:
:
VALUE
ENTER
Figure
3
.
Function
key
placement
on
face
of
trip
unit
.
The
functions
of
the
four
keys
are
•
FUNCTION
-
selects
the
mode
of
display
.
•
SELECT
-
chooses
the
next
item
for
display
.
•
VALUE
-
selects
the
phase
-
to
-
phase
display
or
allows
changing
of
set
points
.
•
ENTER
-
stores
set
points
.
Chapter
2
describes
the
operation
of
these
keys
in
detail
.
7
-
7
Trip
Unit
Information
Trip
Unit
Label
Information
Following
are
descriptions
of
the
various
labels
on
the
front
of
the
trip
unit
,
as
shown
in
Figure
1
.
•
Top
left
comer
-
serial
number
of
the
unit
,
such
as
LBA
000393
.
V
-
.
5
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