Mechanics; Common Problems - Gamatronic POWER PLUS Technical Manual

Gamatronic Electronic Industries Ltd.
3.9.4.5 Q: D
A. Power Plus systems, as any other standard Gamatronic systems above 10Kva, use dual inputs,
meaning independent input for the rectifier and a bypass input for the ST/SW.
3.9.4.6 Q: W
A. The wires should fit he current they stand for. Each P+ module consumes 15A of current maximum on
the input of each phase. This current has to be multiplied by the total number of modules. Each country
can have different accepted standards for wire size assignment. The size of the neutral wire should
stand for 1.5 times the maximum current of the phase wires, because the rectifier in each phase works
with the neutral independently. When connecting a unit with two input cables, the neutral wire is double
size anyway because the input and the bypass of Power Plus have single common neutral connection.
3.9.4.7 Q: I
S THERE A NEUTRAL CONNECTION ON THE INPUT AND THE OUTPUT OF THE
?
UNIT
A. Power Plus units operate with neutral on input and on the output. To achieve three-phase operation
without neutral delta to star (or the opposite for output) transformers can be used.
3.9.4.8 Q.
A. The terminals are 70mm screw type on all models. To connect you will need to use cable ends with
your cables with 8mm or 10mm hole.
3.9.4.9 Q.
SIGNAL
A. Yes, it is located on the ST/SW module. Unscrew two mounting screws on the front panel of the
ST/SW module and slightly pull it out. The dry contact connection is on its top, 230v rated, usually for use
with electricity switchboards with make-before-break load transfer function for protection.
3.9.5

MECHANICS

3.9.5.1 Q: T
HERE ARE
A. There are two types of ST/SW modules, for 50/40KVA and for 100/80KVA. For example, for a 30k unit
you should think if after all additional upgrades (an additional module each time) more then 50KVA load
will be reached. If so, then it's better to order a unit with ST/SW module for 100Kva. Of course, there is a
price difference. Don't forget that the base module for these units can also be 50/40Kva or 100/80Kva.
So, every customer might require different solution.
3.9.5.2 Q: H
A. In these systems the housing is modular. In order to upgrade the system with a new module an
additional shelf should be installed. This is a simple process, which might take no mode then half an hour
for single person.
3.9.6

COMMON PROBLEMS

3.9.6.1 Q: A
UNDERSTAND WHAT IS WRONG
A. On the left side of the controller there is an "alarm off" button. When you press it, you will see the list
of all the alarms for the system and their state. They can be browsed using the up and down arrows. The
active alarms will have an asterisk (*) sign near them.
Power+ Technical Guide
OES THIS UNIT HAVE DUAL INPUTS
HAT SHOULD BE THE CONNECTION WIRE SIZE IN MM
W
HAT IS THE TERMINALS TYPE OF THE UNIT FOR THE INSTALLATION
D
OES THE UNIT HAVE DRY CONTACT FOR THE
?
50/40KVA
OW CAN THE UNIT BE UPGRADED IF THERE ARE NO FREE SHELVES
LED
N ALARM IS IN RED ON THE FRONT PANEL
?
100/80KVA ST/SW
AND
?
2
?
"L "
OAD ON BYPASS
. W ?
MODULES HY
?
. H I
OW CAN QUICKLY
?
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