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Cat XQ1250G Natural Gas Mobile Generator Set

Posted on April 14, 2010

Caterpillar has announced the availability of the XQ1250G natural gas mobile generator set. Sold and rented exclusively through Cat dealers, the new set is rated for continuous operation at 1250 kW 480/277 V 60 Hz. Cat said the XQ1250G was designed as a transportable, self-contained, natural gas power plant. It includes a control system to parallel with other Cat generators or with an electric utility.

The XQ1250G power module employs a low emission G3516B engine with integrated exhaust aftertreatment to comply with July 2010 U. S. EPA's New Source Performance Standard for Spark Ignited Engines. If local emission requirements are more stringent, the XQ1250G product design is suitable for the addition of aftertreatment devices beyond the standard oxidation catalyst.

The G3516B operates on low pressure natural gas (0.2 to 0.48 bar) and is equipped with an active air-to-fuel ratio controller to allow for varying fuel energy content. The engine, fuel regulation components, control and distribution system, and cooling package are housed in a sound-attenuated 12.2 m ISO container. It is CSC-certified for nine unit high stacking. To reduce installation time at the project site, the XQ1250G offers an integrated cooling and exhaust system. Cat said the operator can connect the natural gas supply line and the load cables to ready the unit for operation. The design of the XQ1250G includes 100% spill containment of all engine fluids, Cat said.

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