Kohler 20RESC Manuale di istruzioni per l'installazione e il funzionamento - Pagina 2
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Circuit Breaker Kits
If the APM is not installed within sight of the generator
sets, local codes may require the installation of circuit
breakers near the APM. Circuit breaker kits are
available for installation inside the APM enclosure.
Figure 2 shows the circuit breaker kit numbers for the
14RESA,
14RCA,
20RESA/B/C/D
generator sets. Verify that you have the correct kit for
your generator set model.
Model
Circuit Breaker Kit
14RESA
14RCA
GM86368-KP1-QS
14RCAL
20RESA
20RESB
20RESC
GM86369-KP1-QS
20RESD
20RCA
20RCAL
Figure 2 Kit Numbers
Term
Automatic paralleling module (APM)
Single-phase paralleling system
Generator management
Load management
Generator 1
Generator 2
Primary generator
Secondary generator
First-order generator
Second-order generator
Runtime order selection
Manual order selection
Auto-Off
Auto-Run
Auto-Discovery
Figure 3 Definitions
2
Other Accessories
Other compatible accessories include:
D
D
If OnCue Plus will be used, a unique OnCue activation
and
20RCA
code is required for each generator set. Two activation
codes are provided with the APM kit.
Definitions
APM Kit
Some terms used in these instructions are defined in
Figure 3.
GM85144-KP1-QS
Definition
The box that contains the contactors and optional circuit breakers.
See Figure 1.
System that includes the APM, two generator sets, current transformers
(CTs), transfer switch, load management device, optional PIM, and
optional OnCuer Plus. See Figure 7.
Determination of the number of generator sets needed to supply the
load and logic for stopping one of the generator sets.
Shedding and adding loads using the load control module (LCM), load
shed kit, or RXT ATS with combined interface/ load management board.
The generator set connected to the left-side contactor in the APM.
The generator set connected to the right-side contactor in the APM.
The generator set whose RDC2 controller is controlling the RBUS
network.
The generator set whose RDC2 controller is monitoring but not
controlling the RBUS network.
The generator set that is not stopped by generator management.
The generator set that is turned off by generator management when it
is not needed.
The generator with the fewest number of hours of operation is selected
as the first order generator set. Runtime order selection may cause
generators 1 and 2 to alternate order.
The generator set that has last been taken off-line (see Auto-Off) is
always the second order generator set. Runtime hours are ignored.
See Section 5.3.2.
Pressing the AUTO and OFF buttons simultaneously on one generator
set's RDC2 controller removes that generator set from the bus. The
other generator set will start if it is offline. See Section 5.3.2.
Pressing the AUTO and RUN buttons simultaneously on either
generator set places generator management in runtime hour selection
mode. See Section 5.3.2.
A required procedure after paralleling system installation,
auto-discovery confirms that the system components are connected
correctly and communicating as required. See Section 4.4.
Programmable Interface Module (PIM)
OnCuer Plus Generator Management System
See Section 5.3.2.
TT-1596
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