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Morris Line Engineering (MLE) has been at the leading-edge of design and manufacture of electrical equipment for railway systems for over three decades
uring this period, MLE has developed a range of manual and motorised high voltage and high current isolators fitted with porcelain insulators, and more recently equipment fitted with silicone rubber insulators for railway electrification.
Based in Bridgend, as well as MLE serving its home market of the UK and Ireland, it also exports extensively to the Middle East, Far East and Africa. The company’s range of switches and disconnectors are available in a voltage range from 750V up to 145kV, and current rating up to 4000A. An in-house dedicated design team keeps abreast of changing technology and develops new cost-effective solutions for the modern railway.
discussion with Network Rail engineers, MLE is currently developing a number of state-of-the-art designs specifically for rail applications. ‘New products include fully rated load break switches and fixed earthing devices (FED’s) which can be mounted at predetermined intervals along track overhead lines to provide quick, safe, and cost-effective earthing for maintenance teams. Once completed and fully tested these new additions should prove to be simple to install and maintain, offering significant labour savings over the life of the product,’ says Nigel Jones, sales and marketing engineer. ‘The track switch range forms just a small part of MLE’s portfolio, which also includes vertical break pushers, rocking and rotating disconnectors, and also fault throwing switches, load break devices, and portable isolators, continues Jones. ‘These all sit within the overall offering of MLE’s parent company, JW & E Morris and Son, who in terms of the rail market, supplies a series of auxiliary equipment such as motorised and manual mechanisms, fuse assemblies, cubicle isolators, indicator and control panels, circuit breaker cubicles, battery supply cubicles and marshalling cubicles which tie into the isolator system. All of this is backed up by the multi-disciplinary specialist consulting services provided by sister company, McLellan and Partners.’ Although a UK company, MLE’s first key rail contract actually took place in Taiwan where for the first three years of its operation the company worked as a
Recent developments include the
25kV, 1250A rotating track switch, which boasts a number of enhancements along with the benefit of its interchangeability with existing MLE 800A disconnectors. Available in both two and three position configurations with either manual or motor driven operating mechanisms, the 25kV 1250A switch can be adapted to suit customer requirements. The system also offers polymeric insulators, mechanical or electrical earth indication, bearings with limit switches, a worm drive gearbox preventing runback, and an electromagnetic brake to hold the mechanism in place when de-energised. Working closely with its rail representatives, Pace Networks, and in
consultant on the electrification of the 350km stretch of 25kV mainline between Taipei and Kaohsiung. It was at this point that MLE cemented its relationship with the UK rail industry, which continues today, by undertaking the design and manufacture of 25kV single break rotating isolators, and the associated manual and spring closing motorised mechanisms. It is not only its engineering staff upon which the reputation of MLE depends, but also the after sales and support teams. These teams are very capable of securing repeat business and ensuring that there are long-term relationships with customers.
MLE is committed to updating its products in line with technological progress. Today, the company is working, with support from Network Rail, to continually test and upgrade designs in order to bring about equipment which results in improved reliability, reduced maintenance and lower installed costs to the benefit of the industry as a whole. Further information from Nigel Jones, sales and marketing engineer, Morris Line Engineering. Tel: 01656 650680 E-mail:
nigel.jones@
morrisline.co.uk www.morrisline.co.uk
April 2013 Page 69
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