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EntelliGuard* L

Electronic Trip Units layout & Main menu

State of the Art Electronic Trip Unit
EntelliGuard* L Power Circuit Breakers is equipped with a digital electronic trip unit type GT-L,
that has a LCD screen providing an ammeter and a touchpad that allows a simple and
accurate menu driven adjustment of the breaker parameters.
All functionality is menu driven accessed by using 4 setting and one enter key thus allowing
a fast and accurate setting of the device. These have the following functionality.
 UP: Scroll up, Increment Value

Electronic Trip Units In situations where the installation is not yet connected to the power supply and the device
DOWN: Scroll down, Decrement value

NEXT function, next page

PREVIOUS function, previous page

SAVE setting into memory
needs to be adjusted and have the installed options set the use of the separately available
TESTER with Power Pack is advised. (Cat No. GTUTK20)
In Power On situations the Trip Unit display is only functional when the breaker is carrying
at least 20% of it’s nominal current value. (Single phase)

To enter this option begin the process by pressing the UP or DOWN key until SETUP is selected
SET UP SET UP MENU
Intro METER on the screen… Pressing the NEXT or PREVIOUS key allows one to enter the setup mode.
After selecting this mode all functions can be chosen by depressing the NEXT or PREVIOUS key.
Within the setup menu all breaker protection values, trip unit parameters, relaying functions in
STATUS
and outputs, communication and trip unit access codes are set.
A EVENTS Each EntelliGuard* L Electronic trip units provides long-time over-current protection (LT),
long-time delay (LTD/t ) and some form of Short Circuit over-current protection (ST and/or I).
R
Optionally Groundfault protection (GFsum) with a delay funtion (GFDB/T ) can be added.
G
B
METER
SET UP To enter this option begin the process by pressing the UP or DOWN key until to METER is
C METER selected on the screen.. Pressing the NEXT or PREVIOUS key allows one to view the current in
METER
all three phases and the neutral. The ammeter is only available when the trip unit is powered
by the distribution or via the external Testkit.
STATUS
D EVENTS

E
STATUS
SET UP To enter this option begin the process by pressing the UP or DOWN key until METER is
selected on the screen. The status option indicates the present status and settings of the trip
X METER unit and circuit breaker.
STATUS
STATUS

EVENTS

EVENTS
SET UP To enter this option begin the process by pressing the UP or DOWN key until EVENTS is selected
on the screen. Pressing the NEXT or PREVIOUS key allows one to access events. Here a total of
METER 10 events with data as, event type and event magnitude are stored. The connection of a 24V
DC auxiliary supply to the Trip Unit will expand this option to include a time stamp of
STATUS each event.
Tripping events as LT, ST, I GF) are visualized with the associated levels. It is possible to clear this
EVENT LOG
EVENTS
so called “trip register” locally.

B.2