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ReGen launches highest-capacity indigenous wind turbine

EM News Bureau ,  Thursday, November 13, 2014, 12:04 Hrs  [IST]

ReGen Powertech is working on India’s largest wind turbine WD 2.8 with a rated power output of 2.8 mw and rotor diameter of 109m. This is the largest capacity turbine with the biggest rotor diameter to be developed in India, a release by ReGen Powertech said. Entirely designed and developed by ReGen’s own R & D subsidiary in Germany, Wind Direct GmbH, this turbine has many unique design and constructional features.

Primarily developed for the medium and high wind regions, this turbine is mainly intended for export to the emerging markets outside of the Indian subcontinent. It is expected that the introduction of this new turbine, a prototype of which is under testing in ReGen’s own test site in Coimbatore district of Tamil Nadu, will mark ReGen’s foray into the global arena.

regen1.jpgWind Direct GmbH Germany, established in 2008, is fully equipped with software tools required for the design and development of wind turbine and has the competence to carryout load calculations, finite element analysis and detailed engineering and design of electrical systems including frequency converters. The permanent magnet synchronous generator of this turbine has very unique design and construction features and offers distinct advantage over the generators used in geared turbines as well as gearless turbines.

The generator of WD 2.8 offers IP54 protection compared to IP23 protection normally available for generators of other gearless wind turbines. The generator is of segmental design and has two fully independent power systems, each of 1.4-mw capacity. This allows operation of the turbine at half the rated power in case of any maintenance to some of the segments of the generator. The unique design of the windings helps the generator to operate at a higher efficiency and also reduce the generator size and weight. The weight of the tower head mass is only 156 tonnes compared to almost 250 tonnes of other gearless wind turbines of comparable capacity and almost of the same weight as geared wind turbines of similar capacity.

The generator has an active air to air cooling system which makes it suitable for operation in high temperature sites. The WD 2.8 MW wind turbine, whose prototype is under testing, is another feather in ReGen’s cap. This next generation product with its unique modular design is highly suitable for medium and high wind regions. This wind turbine is expected to be ready for commercial launch by end of 2015. ReGen is also in the process of launching the next wind turbine based on Vensys technology for low wind markets like India and it is expected that a larger turbine with a rated capacity up to 3 mw Regen2.jpgwith a rotor diameter between 110-120m will be ready for commercial launch in early 2016. ReGen Powertech has been in the Indian market for the last six years and has about 1,500 mw of installation in India and Sri Lanka behind it. It presently manufactures 1.5 mw synchronous permanent magnet gearless wind turbines with a technology agreement with Vensys Germany. In this short span of six years, ReGen Powertech has introduced wind turbines with three different rotor diameters of 77m, 82m and 87m suitable for low and medium wind regions found in countries like India.

ReGen Powertech has two manufacturing facilities one in Tada, Andhra Pradesh with a capacity to produce 500 wind turbines annually and another in Udaipur with annual capacity of 200 wind turbines.

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