Technical CATERPILLAR – 1000 kVA Page
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Description UTILITY POWER MODULE
Revision 1.0 1 May 2006
FACTORY INSTALLED STANDARD EQUIPMENT
Feature
Switchgear Control
MODES of OPERATION
Utility paralleling switchgear is included for automatic paralleling with a utility
power source as a load management system, with provisions for standby
operation feeding in an isolated load network.
Modes of operation are field configurable and include:
- Single Unit Island Mode
- Multiple Unit Island Mode (up to 18 modules per site) with ramp loading
· Includes Load Sense / Load Demand control
· Each module displays system summary power level and summary alarms.
·
Load sharing capability is provided via CAN network communication
- Single Unit Utility Parallel Mode.
· Automatic paralleling
· Selectable for Import / Export control
· If Import control is selected a 4-20mA or 0 - 10 V signal is required and will be
provided by others that is scalable to the utility contribution.
·
Provision for Manual Paralleling
50 - 60 Hz selectable controls.
AUTOMATIC LOAD DEMAND:
Load demand operation includes sequencing of multiple units, with configurable
start stops levels and timers. Although the modules are intended for prime power
rental applications, they can also be configured for various stand-by scenarios
as well. This includes strategies where the first module up to speed becomes
the master and can close on a dead bus with the remaining packaging
automaticall
arallelin
to it.
AUTOMATIC SYNCHRONIZING:
The control system provides soft loading and unloading for bumpless transfer in
parallel operation. The control system also works together with EMCP 3.3
to provide automatic cooldown feature. The control system provides data
communication for 1 to 18 modules in a network.
Communication is provided with a robust high speed CAN network.
The CAN data link was selected for robust high speed deterministic data transfer.
Modules are connected in series with a 15 m long high
speed CAN cabes (provided with each module).
Parallel o
eration includes both real kW and reactive KVAR load sharin
and control.
Benefits
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