Eaton bolsters MV switchgear product offering
17 November 2010
Eaton has strengthened its medium voltage (to 24kV) product offering for use in distribution networks, infrastructure and industrial applications. These include the FMX single-busbar switchgear (bottom picture), W-VACi vacuum circuit breakers (top picture) and Unitole UX withdrawable switchgear. The new products complement the organisation’s existing MV switchgear portfolio, including the recently introduced Xiria 24kV ring main units, which are available in the UK under the Holec brand name.
The core technologies that underpin Eaton’s MV products include vacuum switching, which offers reliable maintenance-free operation over a long working life, and cast resin insulation, which provides excellent control of electric fields and eliminates the risk of open arcs. The products provide an attractive and viable alternative to sulphur hexafluoride (SF6) insulated switchgear. By eliminating the high maintenance requirements of SF6 equipment, as well as the environmental issues associated with use and ultimate disposal of SF6 gas, they offer significantly reduced life-time costs.
A key addition to the Eaton family of MV products, the FMX units offer metal-enclosed single-busbar solid- and air-insulated switchgear for use at up to 24kV and 2,000A. Tested in accordance with the latest IEC 62271 standard, the FMX range is based on vacuum switching technology. It is compact and environmentally friendl with low total cost of ownership for applications in main feeder stations and substations, as well as in industrial and infrastructure projects.
For applications where withdrawable switchgear is preferred, Eaton will be launching the Unitole UX range of switchgear with ratings up to 4,000A. This is also fully compliant with IEC 62271 and offers full segregation by earthed metal partitions of all major compartments. Products in the Unitole UX range, which will be available for delivery in the near future, have been specifically designed for ease of installation, to minimise maintenance requirements and to offer low environmental impact.
Unitole UX switchgear incorporates the new W-VACi vacuum circuit breakers, but these can also be supplied separately for use in other equipment. Compact and cost-effective, they are available in IEC 12kV, 17.5kV and 24kV versions. The breakers are offered in fixed and withdrawable configurations, with all types using a universal mechanism assembly that combines reliability with long life and virtually maintenance-free operation.
These new products join the new Xiria 24kV ring main units, which are a recent addition to the Eaton MV product family. Xiria units are offered in two-, three-, four- or five-panel versions with the primary parts of the units and the mechanisms fully enclosed. Xiria units are among the smallest of their type currently available and are supplied, as standard, ready for use in fully automated networks.
Other products that make up the complete and comprehensive Eaton MV product family include Magnefix insulation-enclosed 3.6kV to 15kV ring main units, over 200,000 of which are already in use around the world; SVS/08 and SVS/12 modular switchgear, a fully enclosed epoxy-resin insulated system with integral vacuum interrupters; and the MMS compact double busbar switchgear system for use where providing the highest levels of supply availability is a key requirement.
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