Electricity + Control September 2015

DRIVES, MOTORS + SWITCHGEAR

ROUND UP

New switchgear for City Power

City Power is ACTOM MV Switchgear ’s first customer for its new generation AMV12 range of air-insulated switchgear officially launched into the market at the beginning of the year.The business unit was awarded a contract in April last year to provide a 17-panel 12 kV rated switchboard incorporating the new switchgear for in-

stallation in the 88 kV/11 kV Industria substation in Industria, West of Johannesburg’s city centre.The contract, which formed part of a refurbishment and upgrade of the substation by City Power, was awarded by Midrand-based Machite Engineering, the electrical and civils contractor on the project. ACTOMMV Switchgear, which com- pleted the contract in January this year, developed the AMV12 range in line with the changing requirements of its principle customers and in conformity with the latest international quality and safety standards. It developed the new range in partnership withYIHE Electric Group, a Qingdao (China) based manufacturer of electrical equipment.The AMV12 range of switchgear is rated for 12 kV with current ratings of 800 A, 1250 A and 2 500 A at 31,5 kA in accordance with IEC 62271-200. Enquiries: GregWhyte.Tel. 011 820 5140 or email greg.whyte@actom.co.za

ACTOM MV Switchgear technicians completing assembly and inspection of the AMV12 switchgear panel for City Power’s Industria substation.

Unique handheld instrument Diagnosis, maintenance and servicing of electric drive motors necessitate the measurement of various electrical quantities, as well as function and safety testing. Several measuring and test instruments are required which are only condition- ally portable and therefore unsuitable for on-site service calls. Gossen Metrawatt’s new Metrahit Coil unites all important measuring and test instru- ments for electric drives into a single handheld device.The instrument includes a universal digital multimeter, an insulation measuring instrument and a motor coil tester.This combination is unique in a handheld instrument.The short-circuited coil detection function is a world first. Asymmetries resulting from short-circuited coils can be detected by comparing the measurement results obtained for motor coils inmultiphase drives. Measurement is performed with a charging voltage of 1 000 V, which makes it possible to detect errors which only occur under operating conditions. Enquiries:Timecount. Joss Laurencik.Tel. 011 882 3105 or email sales@timecount.co.za

MARTHINUSEN AND COUTTS - LEADERS IN ELECTRIC MOTOR AND POWER GENERATION REPAIR, MAINTENANCE AND SPECIALISED MANUFACTURE.

Large AC / DC Motors Small AC / DC Motors Traction & Flameproof Motors Transformers Power Generation

ON SITE SERVICES

Removal repair and re-installation

On site testing and breakdown repair

Root cause analysis

Condition monitoring

Preventative and predictive maintenance

Motor management programme

CUSTOMISED ELECTRICAL

AND MECHANICAL DESIGN

Reliability improvements/enhancements

Efficiency improvements

Performance upgrades

Power savings

Marthinusen & Coutts Your Assets. Your Needs. Your Service Partner.

Tel: +27 (0)11 607 1700 www.mandc.co.za commercial@mandc.co.za