Technical CATERPILLAR – 1000 kVA Page
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Description UTILITY POWER MODULE
Revision 1.0 1 May 2006
6. Switchgear & Controls
6.1 CONTROL SYSTEM DESCRIPTION
Utility paralleling switchgear is intended for automatic or manual synchronizing with a
utility power source as a load management system, with provisions for standby
operation feeding an isolated load network. Modes of operation are field configurable
and include:
- Single Unit Island Mode.
- Multiple Unit Island Mode (up to 18 units).
o Includes Load Sense / Load Demand control, ramp loading, bumpless transfer
o Load sharing (kW and kVAR) capability is provided via network communication.
- Single Unit Utility Parallel Mode.
o Automatic paralleling.
o Selectable for Import / Export control. (Requires 4-20 mA customer input.)
o This product is intended for unmanned operation Automatic paralleling.
• .Convenient operator interface
- 4 lines text display
- Graphical one-line diagrams with LED status indicators.
• Modules can operate in groups up to 18 with all communications synchronizing and
load sharing between units by datalink for quick and convenient setup. (Max
cumulative distance 450 m)
• Protection includes 1600A motorized generator 3 poles circuit breaker with 55kA
interrupt capability, extensive protective relays and internal power distribution.
• Convenient customer connections for power
• Request to run / stop signal (customer input)
• Can also be paralleled to Woodward compatible legacy modules in island operation.
• Languages available: Dutch, German, French, Russian, Spanish.
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