February, 2011

Caterpillar says its new 455ekW mobile diesel generator set meets Environmental Protection Agency (EPA) Tier 4 Interim emission standards. This power module is rated for prime operation at 455ekW (480/277V, 240/139V and 208/120V); it is powered by the Cat C15 ACERT engine and is sold and rented exclusively through Cat dealers. Equipped with the EMCP 4.4 control panel, the XQ500 features a user-friendly interface and automatic genset paralleling. The EMCP 4.4, ADEM A4 and Cat Digital Voltage Regulator (CDVR) sense changes and adjust the parameters for optimum performance. Providing greater flexibility when moving between multiple job sites with differing frequency and voltage needs, the auto-configuration capability eliminates the time required when reprogramming units and potential errors. The XQ500 power module is suited for utility paralleling applications as it offers power metering, protective relaying, and engine and generator control monitoring. The optional Utility Multifunction Relay (UMR) provides the protection often required by utilities when paralleling with a utility source. The power module meets 76dBA at seven metres at 110% of the prime rating per SAE J1074 measurement procedure, while maintaining the ambient and altitude performance for all voltages. Additionally, the customer GFCI convenience receptacles featured on the XQ500 are supplied with 110V consistently, regardless of the voltage at the main load bus terminal.

CATERPILLAR