Electrical Power & Protection


Latest Articles

Signal and instrumentation protection
September 2014
Saltek’s FLP-B+C MAXI VS/1+1 is a Class 1 and Class 2 combined lightning current arrester designed to protect LV single-phase TT (TNS, TNCS) networks against surge voltages due to direct or indirect lightning ...

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Cold commissioning of motor protection relays
September 2014, NewElec Pretoria
NewElec’s senior technician, Howard Madiba, recently assisted a switchboard manufacturer to program the NewCode three-phase motor protection and control relays. The assistance offered included upgrading ...

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90 Watt LED power supply with active PFC
September 2014
Thanks to the market trend for environmental protection there has been an explosive growth in demand for LED lighting. In order to address this, Mean Well has released its new 90 W single output LED power ...

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Energy management lessons from Europe
August 2014
ARC Advisory Group research indicates that, by employing appropriate energy management measures, energy-intensive companies can reduce their energy consumption by around 30 to 40% over a time span of around 15 years.

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Extended range current transducers
August 2014
LEM extends the HO series to 250 A.

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Intelligent surge protection for intrinsically safe applications
August 2014, Phoenix Contact
Phoenix Contact’s new PT-IQ Ex models from the self-monitoring Plugtrab PT-IQ surge protection system are specifically designed for intrinsically safe applications and can be installed directly in Ex ...

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Schneider Electric’s N-Series auto reclosers
August 2014, Schneider Electric South Africa
Intelligent switching to ensure quick response to faults can be achieved thanks to the N-Series medium voltage automatic circuit reclosers by Schneider Electric. “The N-Series three-phase pole mounted ...

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The smart solution for protective relay testing
August 2014
Megger’s SMRT36 is a small, light protective relay test set and has more output power than any other comparable three-phase instrument available anywhere. The SMRT36 has a unique constant power output, ...

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Dehn protects against arc faults
August 2014
An arc flash is a type of electrical explosion that results from a low impedance connection to ground or another voltage phase in an electrical system. The light and heat produced from an arc flash can ...

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AC/DC digital clamp meter
August 2014
Megger’s DCM340 is a highly versatile instrument and is ideal for use in the installation, maintenance, monitoring or checking of AC or DC electrical systems and equipment. The DCM340 is capable of measuring ...

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Schneider Electric says services vital for installed base
July 2014, Schneider Electric South Africa
Enlisting the help of an experienced and specialised installed base service provider levels the path for an organisation to achieve its overall business goals. This is the case for an organisation either ...

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Compact convection cooled power supply delivers 400 W without fans
July 2014, Vepac Electronics
XP Power has announced the SDH400 series of single and dual output 400 W convection cooled power supplies. These compact 1U profile chassis mount supplies can deliver the full 400 W output without the ...

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Gigavac announces hermetically sealed battery disconnects
July 2014
Gigavac has announced a new addition to its extensive line of advanced switching solutions. The HBD series of manual service disconnect switches incorporate new technology to deliver unprecedented protection ...

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Lightning and surge protection
July 2014
Dehn protection for buildings and industrial installations.

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Varistor-based surge arrester
July 2014
Saltek’s SLP-275 V/1+1 is a Class 2 combined varistor-based surge arrester and an encapsulated spark gap connected in the 1+1 circuit mode. It is designed for installation in single phase low-voltage ...

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EcoBreeze cooling solution for the data centre
July 2014, Schneider Electric South Africa
Today’s data centre managers are facing increased financial and regulatory pressure to improve the efficiency of their data centres. For the South African climate, an indirect evaporative cooling system ...

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Schneider Electric launches EasyPact CVS circuit breakers
June 2014, Schneider Electric South Africa
Schneider Electric has announced the local release of the EasyPact CVS range of moulded case circuit breakers (MCCB) for low-voltage applications from 100 to 630 amps. EasyPact CVS is specifically designed ...

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Clamp-type current transformers
June 2014
Denver Technical Products offers a comprehensive range of clamp-type current transformers for the measurement of AC and DC current – from milliamps up to 8000 A. Jaw sizes vary from 15-83 mm, allowing ...

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Siemens expands range of central inverters
June 2014, Siemens South Africa
Optimised output for photovoltaic power plants.

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Eaton’s ESS technology
June 2014
Danish data centres cut energy usage by 10%.

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