FORCED OPERATION (Kerys in “AUTO” mode)
Start of FORCED OPERATION
• Generating set start request (dry contact, switch, clock, etc.).
• The speed and voltage of the generating set increase.
• Generating set power unit switched off after voltage and frequency stabilisation.
The installation is supplied by the generating set
End of FORCED OPERATION
• Dry contact, switch, clock, etc. switched on.
• Generating set power unit switched on.
• Cooling delay.
• Generating set stopped and set to standby.
The Kerys remains in ”AUTO” mode
Manual operation of generating set
This mode of operation is selected with the “MANU” key (on the front of the MMI module). The operator is able to start and stop the
generating set by using the MMI keypad. The generating set power unit is switched off by means of the MMI keys. The safety
devices of the generating set remain active in this mode of operation.
This mode of operation is the responsibility of the operator.
Temporary coupling to the grid (A651)
This configuration is designed to provide:
Emergency electricity supply to an installation following a grid loss. Return to the grid is achieved by a temporary coupling
with transfer of the generating set load to the grid.
FORCED OPERATION with a generating set.
Temporary coupling for “Effacement Jour de Pointe” (EJP)* mode or other rates (Information transmitted by dry contacts).
Regulation
module
Base
module
C
A
N
b
u
s
E
t
h
e
r
n
e
t
3PH + N
3PH
3PH
3PH
M
M
M
Optional
manual or
motorised
circuit
breaker
MMI Module
Application
(load)
Grid
* the “EJP” (Peak Day Load Shedding) system is specific to the French power grid.
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