AEZ GCM02 Handbuch - Seite 4

Blättern Sie online oder laden Sie pdf Handbuch für Bedienfeld AEZ GCM02 herunter. AEZ GCM02 12 Seiten. Automatic microprocessor control panel for stand-by generator

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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.

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

FILE

GC-M02

UTILITY

VER

LAST ISSUE

SDG/02

LANG.

18/11/2005

ENG

QGE

PAGE

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