AEZ GCM02 Podręcznik - Strona 4

Przeglądaj online lub pobierz pdf Podręcznik dla Panel sterowania AEZ GCM02. AEZ GCM02 12 stron. Automatic microprocessor control panel for stand-by generator

AEZ GCM02 Podręcznik
HOW A STAND-BY GENERATOR UNIT WORKS
Fig. 1 illustrates the system components that consist of a public mains R, a generator unit G-M, a
command and control panel with a built-in mains contact maker CR, a generator unit contact maker
and the
M02
module that controls the system.
R
Fig. 1
Supposing that the mains R is within the normal limits, the CR mains contact maker is closed therefore the
utility is powered from the mains. The M02 module controls the R mains and if there should be a drop in
voltage, for a phase lack or in case of dissymmetrical phases, the control panel:
1. opens the CR mains contact maker;
2. operates the start of the G-M generator unit, which, when reached the established operating conditions ,
the M02 module closes the CG contact maker that then powers the utility from the generator unit G;
3. When running, the M motor and G generator are safeguarded against possible anomalies, which could
cause the immediate generator stop and the written recording of the alarm cause on the display (i.e. low
oil pressure, overload and so on);
4. When the R mains is restored within the normal limits, the M02 after a fixed delay, opens the contact
maker of the CG generator and one second later closes the CR contact maker, powering the utility from
the mains again;
5. The generator continues working for at least another minute to cool down and after that it stops
automatically;
6. Even when the generator is not working, some safety devices relating to the fuel and water level are
operating and if an anomaly is detected an alarm status is triggered. The switching of the mains/generator
is also constantly controlled and in case of overload on the mains contact maker an alarm buzzer is
triggered.
To ensure the perfect generator working order, an automatic battery charger maintains the battery perfectly
efficient. An automatic fuel filling system constantly keeps the correct level in the daily tank. A pre-heating
system maintains an ideal temperature to the motor so that it is ready to start whenever necessary.
GCM02-M-USO-INGLESE.doc
1.2 OPERATING PRINCIPLE
QGE
CR
FILE
GC-M02
CG
UTILITY
VER
LAST ISSUE
SDG/02
G
M
LANG.
18/11/2005
ENG
QGE
CG
PAGE
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