New compact genset series

1 June 2010

Cummins new C22D5 compact generator set, powered by the company’s X2.5 engine is specifically designed to deliver more power from a smaller unit with less environmental impact, and is aimed mainly at the construction market which is facing increasing pressure to reduce downtime and increase productivity,

The new sets are part of a wider range which includes the X 1.3 powered sets available in 8 -11kVA configurations at 50Hz, the X 2.5 powered sets in 17 – 28kVA at 50Hz (12 – 20kW at 60Hz) and the X 3.3 model rated 30 to 38kVA at 50 Hz and 27 to 35 kW at 60 Hz.

Steve Juden, executive product manager, said, ‘Exceptional power delivery coupled with reduced running costs ensures the new compact range meets the specific requirements of the construction industry. We believe this new line with its unique features and benefits, will take leadership in this market segment.’

Additional features include in-built fuel tanks, which provide customers with excellent fuel autonomy in excess of 30 hours at 75% load, whcih saves on refuelling frequency, associated costs and emissions. Running costs are further reduced through an extended oil change period of 500 hours. It is supported by a comprehensive warranty on services and parts.

Standby for the Ropemaker building

Cummins has supplied standby power to maintain the proper functioning of a

586 000 sq ft building providing residential, office and retail space, including two trading floors of 42 500 sq ft (4000m2) in the city of London. The generator sets are four C2500 D5A, powered by QSK60 G8 engines, featuring DMC200 generator set controls, and capable of delivering 8MWe with an associated noise level below 63db(A).

Designed by Arup Associates,the 20 storey Ropemaker development may well become one of the city of London’s most impressive and energy-sustainable constructions. The building incorporates two large trading floors, expansive roof terraces overlooking London and a double height atrium with innovative public art by Jason Bruges.

The development is designed to enable its users to reduce energy and water use, cut down waste, decrease carbon dioxide emissions and lower associated costs. All energy used for heating water and space will come from renewable sources.

A reliable source of standby power is required to ensure the delivery of an uninterrupted supply of power to the residential, retail and commercial units occupying the building and Arup Associates involved Cummins’ UK arm in the project from an early stage, inviting it to assist in the proposed layout of the generators and any auxiliary equipment. This application presented the challenge of six individual LV switchboards each with a separate incoming supply. The required control philosophy treats each of these supplies independently, and requires a DMC200 unit to instigate generator support for a failure of supply at any one, a number of, or all switchboards. With the switchboards each located in physically separate locations, additional safety is provided by the DMC200 which monitors emergency switches (EPO’s) at each location and immediately responds by isolating generator supply to that individual switchboard, without affecting the efficient operation at all the others.

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