Manual 26059 EGCP-1 Engine Generator Control Package
Woodward 37
Circuit Breaker Control (Breaker/Contactor)
•
Defines action of Generator and Mains closure command.
•
Breaker issues momentary breaker close signal, and a separate momentary
breaker open signal independently.
•
Contactor issues continuous breaker close signal through the breaker close
command relay output. Removes this signal to open contactor.
■
Breaker Logic Contactor Logic
breaker close
breaker open
contactor
close/open
Normally Open
and de-energized
on mains and generator
Normally open Normally closed
and energized and de-energized
on generator on mains
Normally open and
de-energized on generator
Normally closed and
de-energized on Mains
Figure 4-33. Breaker Logic and Contactor Logic
Check Mains Breaker (enabled/disabled)
•
Used to activate checking of mains C.B. Aux. input when enabled.
•
If disabled, unit relies on other units with this setpoint enabled to broadcast
state of mains C.B. Aux. contact over network.
Operating Mode
•
Mains Parallel or No Parallel
•
Mains Parallel
will allow the unit to synchronize to the mains, and carry
load while in parallel with the mains as well (closed transition).
•
No Parallel
will not allow the unit to operate with load until the mains
breaker is sensed as being open (open transition).
•
All units operating in a load sharing system must be set for the same
parameter, i.e. mains parallel, or no parallel.
Number of Units (single, multiple)
•
Defines whether unit is part of a multiple unit system or not.
•
If
single unit
, there is no auto starting, auto sequencing, load or PF sharing
with other units under any circumstances. Unit displays “single unit no
sequencing” on sequencing screen. Network Priority and Network Address
setpoints are removed from the configuration setpoint menu automatically.
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