MV Switchgear Divisional News – Mobile prefabricated substations

Mobile prefabricated substations


Mobile prefabricated substations gain popularity among mines and municipalities

In recent years greater use has been made by mines and municipalities of prefabricated mobile medium voltage substations in place of conventional brick substations.

“More and more customers are realising how much more convenient and versatile the mobile substations are,” commented Alec Duff, ACTOM MV Switchgear’s Marketing Manager.

“Besides their lower cost and portability compared with the standard brick structures, their big advantage is that they can be brought in complete, connected up and put into operation fairly quickly. The quality of the sheet steel type of container and its sturdiness also make it suitable for rough terrain use.”

The mobile substations designed and manufactured by ACTOM MV Switchgear, all custom-built according to customers’ requirements, are suitable for voltages of between 3,3 kV and 33 kV.

“Many of those for mining applications are made with skids to enable them to be hauled at site over rough ground, whereas municipalities and other users usually go for either wheeled units that can be towed to site, or without wheels, which are delivered direct to site by crane truck,” Duff said.

One of the company’s recent orders was for four skid units to supply power to the Cut 8 Project at Debswana Diamond Company’s Jwaneng mine in Botswana.

“They are 6,6 kV units, each weighing 14 t and 4 m wide, 7 m long and 4,5 m high. The switchgear mounted inside the container consists of an incomer and four feeders, two of which supply power to shovels and two to drills,” Duff explained.

ACTOM (Pty) Ltd is the largest manufacturer and distributor of electrical equipment in South Africa, employing about 6 000 people and with an annual order intake in excess of R5bn. It is a black empowered company with 33 operating units, 27 production facilities and 28 distribution centres throughout South Africa.

ACTOM partners Alstom France for environmental equipment and in serving the maintenance, upgrade and retrofit market for larger boilers, as well as for railway transport activities.

ACTOM holds exclusive distribution, technology and representation rights for Alstom Grid (formerly the Transmission business of Areva T&D) in Southern Africa and maintains management, technical and commercial links to Alstom Grid business units in Europe.

Following the acquisition by Schneider Electric of the global Distribution business of Areva T&D, the distribution, technology and representation agreements that existed between ACTOM and Areva will remain in place until such time as a new agreement has been concluded.

ACTOM formerly traded under the name Alstom South Africa and re-branded to ACTOM in September 2009.

For further information contact Alec Duff, ACTOM MV Switchgear
PO Box 13024, Knights 1413
Tel (011) 820-5145 Fax (011) 820-5212
Press release compiled by Julian Kraft, J Kraft Public Relations
PO Box 2826 Wilropark 1731
Tel (011) 472-6686 Fax 086-613-9657

Date:  December 30, 2011

Caption:  ACTOM MV Switchgear’s Marketing Manager Alec Duff (right) and Tendering Engineer Phil Myburgh stand in the doorway of one of the mobile substations the company has custom designed and manufactured for Jwaneng diamond mine’s Cut 8 Project.