Battery Function - GE MicroVersaTrip Plus Series User Manual

Trip units for type akr low- voltage power circuit breakers power break insulated-case circuit breakers power break ii insulated-case circuit breakers r-frame molded-case circuit breakers low-voltage power circuit breaker conversion kits
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1.
Introduction
memory, so sub sequent loss of power does not result
in loss or change of any settings.
Figure
6.
Function key placement on face of Trip Unit.
The functions of the five keys are
- selects the mode of display.
FUNCTION
-chooses the next item for display.
SELECT
selects the phase-to-phase display or
VALU E
-
allows changing of set points.
stores set points.
ENTER-
powers the Trip Unit from the
B A TT E RY
-
internal battery.
Chapter 2 describes the operation of these keys in
detail.

Battery Function

Pressing the
key on the face of the Trip Unit
BATIERY
powers the unit from its internal battery. Bat tery
power is maintained for 30 seconds after the last key
is pressed. This self-powered mode allows setting up
the Trip Unit or viewing trip targets when the
breaker is de-energized and external control power
is unavailable . All normal setup, meter, and status
functions can be performed with battery power.
The battery is intended to power the Trip Unit when
it is otherwise unpowered. At low line currents the
Trip Unit display is not active. Pressing the
key under these conditions will not power the Trip
Unit
Note that at temperatures above
key may have to be held down for up to
the Trip Unit to be powered.
Batteries
The Trip Unit uses a lithium sulfuryl chloride battery
with a typical life of two years in a normally
energized breaker. Typical usage could include one
half-hour of use for first-time cold setup,
Unit status checks per year on a de-energized
breaker, and one or two configuration changes per
year.
CJCJ
The battery is
FUNCTION
SELECT
protection of the breaker. It is not needed nor used
D
to store setpoints, configurations, or trip target
BATIERY
information. It provides a source of power to display
DCJ
setpoints and trip information only if no other
VALUE
ENTER
source of power is available.
Battery Replacement
Replace the battery if it does not power up the Trip
Unit or if the low-battery symbol appears in the
display when the
right-side tab of the battery cover on the front of the
Trip Unit to expose the 3.9
suitable replacement is the Electrochem 3B24-XA,
which is available from industrial distributors. The
manufacturer's address is listed in Appendix
WARNING:
3B24-XA only. Use of a different battery may present
risk of fire, explosion, or dam age to equipment.
Observe proper battery polarity when installing in
the Trip Unit battery compartment.
ATTENTION:
uniquement des Electrochem 3B24-XA. L'utilisation
d'autres batteries peut presenter un risque de feu,
d' explosion ou d'endommagement du m ateriel.
Respecter la polarite de la batterie en !'installant
dans son logement.
W ARNING:
Do not recharge, disassemble, or dispose of in fire.
BAT IERY
Keep the battery away from children and dispose of
the used battery promptly.
ATTENTION:
40°
C, the
BATIERY
mauvaise utilisation. Ne pas la recharger, l'ouvrir ou
5
seconds for
la jeter dans un feu. Doit etre garder hors de portee
des enfants. Une fois usee, la batterie doit etre jete
rapidement.
8
required for proper operation or
not
key is pressed. Lift the
BATT E RY
V AA
Replace the battery with Electrochem
R e m p l a c e r
l a
The battery may explode if mistreated.
La batterie peut exploser en cas de
1 0
Trip
lithium cell. A
4.
b atterie
ave c

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