Sices GC600 Mains, Руководство пользователя

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User manual GC600-GC600
Mains
25
Following a brief example of the operation sequence of a generic SSB + SSTP system, where, when the
mains is back, the parallel with the Generator is performed, so not to leave the Loads not supplied. The system
consists of a public power line “
Mains
”, a “
Load
” line (the load that you want to feed), a “
Generator
” line
( Generator set with alternator and drive diesel engine), a control panel containing: a MCB contactor to
manage the electric Mains , a GCB contactor to manage the Generator a device GC600
Mains
to control the
engine and the electric lines concerned, an electronic board to adjust the speed of the engine, a battery trickle
charger and a number of components to manage the auxiliaries (relays, fuses, terminals, etc ...).
Some sequence steps depend on the configuration of the plant, as the circuit breaker management, or the
Mains/Genset status.
7.2.1.1
Off/Reset Mode
In this mode the Genset is off and the Load is usually supplied by the Mains with the MCB contactor
closed. The supply of the Load is guaranteed all the time the MCB remains closed because it is fed
by the same Mains . If a Black out occurs on the Mains , the Load will remain de-energized and the
gen-set idle. The protections on the electrical measures and on the engine are disabled.
7.2.1.2
MAN Mode
Usually, this mode is used only for the management of the genset by the skilled operators, mainly to
carry out tests on the plant or in particular situations.
In this mode the Load is usually powered by the Mains with the MCB contactor closed. The supply
of the Load is guaranteed all the time the MCB remains closed because it is fed by the same Mains .
The management of the switching between the Mains and Generator ( MCB and GCB contactors),
the starting and stopping of the Generator set are managed entirely by the operator.
With Genset off, the MCB
contactor is commanded to open after pressing the “
MCB
” button for at
least 5 seconds. The Load stays disconnected.
The engine must be started by the operator by pressing START .
With the Genset parameters and Mains live and with controller configured to manage the
synchronisation on the GCB
contactor pressing the “
GCB
”, the synchronisation is activated. Once
the synchronisation is done, the MCB contactor is opened and the Load stays supplied by the
Genset .
With Mains off and with the Genset
parameters, by pressing the “
GCB
” button the
GCB contactor
is automatically closed.
With genset running, Load supplied by the Genset and Mains
live, by pressing the “
MCB
” button,
the synchronisation with the Mains is activated. Once the synchronisation is done, the GCB
GENSET
MAINS
MCB
GCB
ELECTRONIC CONTROL
DEVICE
GC600/ GC600
Mains
G
ENGINE
LOAD