Electrical Power & Protection


Latest Articles

Reliable power supplies for harbours and shipping
August 2015
Vert Energy works closely with the marine and offshore sector, offering the supply of quality branded components and the support of a comprehensive repair and maintenance service. “An important part ...

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A better battery analyser
August 2015, Comtest
Stationary batteries need to be maintained and tested regularly and even maintenance-free batteries can deteriorate over time. All it takes is one battery in a string to fail to take the entire string ...

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Intelligent surge protection for process technology
August 2015, Phoenix Contact
Phoenix Contact’s Plugtrab PT-IQ surge protection devices for MCR and process technology warn plant operators before protection of the plant is lost. To achieve this, each voltage-limiting component in ...

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Next generation WEG contactors save energy
August 2015, WEG Africa
The next generation of WEG contactors has been engineered to facilitate energy savings as well as the optimisation of space within electric panels. These environmentally friendly devices use only non-toxic ...

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Industrial LED light bar for increased productivity
August 2015, Turck Banner Southern Africa
RET Automation Controls has introduced the WLB92 industrial LED light bar from Banner Engineering. Featuring bright, high-quality and uniform light, the WLB92 is designed to increase worker productivity ...

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Efficient earth leakage protection
August 2015, NewElec Pretoria
NewElec’s earth leakage relays are becoming the preferred earth leakage protection device for all industries. This move can be attributed to the original design criteria that include harmonic filters ...

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Five lighting tests in 30 seconds
August 2015, Comtest
Building maintenance technicians for commercial, retail or institutional facilities with fluorescent lighting have hundreds, if not thousands of fluorescent tubes that have to be routinely checked and ...

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Schneider Electric solar systems power new SA game lodge
July 2015, Schneider Electric South Africa
Alternative energy has made the building of luxury accommodation off-the-beaten track a reality. System installers, AdSolar EPC, chose photovoltaic (PV) innovation by Schneider Electric to power the creation ...

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Services audits shed light on electrical installations
July 2015, Schneider Electric South Africa
Major trends are changing customer needs and positively driving services growth. Today’s customers want consolidated data and seek means to convert data into insightful information in order to create ...

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Compact GA MSO relay
July 2015, NewElec Pretoria
NewElec’s compact GA MS0 earth leakage protection relay is designed for use on underground gully boxes. Following the success of NewElec’s GA relay, the GA MS0 enables more sensitive earth leakage protection ...

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False alarms caused by surges can be prevented
July 2015, DEHN Protection South Africa
The function of emergency alarm systems is to produce an alarm in the event of danger and to remain passive when there is none. The malfunction of these systems, either no alarm sounding if there is danger, ...

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Security on smart grids
June 2015, H3iSquared
Moving to a smart grid solution does create more security concerns that need to be addressed.

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The protocols driving smart grid interoperability
June 2015, eTX Data Services
Efforts are underway to create a smarter grid by adding intelligence to the electrical infrastructure that connects generation, distribution, transmission, and consumption.

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Dehn Africa launches powerful DC switching device
June 2015, DEHN Protection South Africa
Dehn Africa, has launched DEHNguard SE DC, a modular type 2 surge arrester that is designed so that the protective device is safely disconnected in case of overload, thus preventing DC switching arcs ...

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Phoenix Contact introduces power supply for frequency inverters
June 2015, Phoenix Contact
Phoenix Contact’s new Quint Power power supply is specifically designed for connection to frequency inverters. In the event of mains failures it is used as a compact buffer solution and ensures that the ...

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Periodic inspection of portable earthing and short-circuiting ­devices
June 2015, DEHN Protection South Africa
An important measure when working on electrical installations, according to the five safety rules of DIN VDE 0105 - 100, is the fourth rule: “Carry out earthing and short-circuiting”. This ensures that ...

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Nuclear power and reactor protection systems
1 May 2015
Topics covered were: a potted history of commercial nuclear power; important concepts to commercial nuclear power; ‘passive’ and active safety; reactor protection systems.

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Multi-channel device circuit breaker boards
May 2015, Phoenix Contact
The new multi-channel device circuit breaker boards from Phoenix Contact are available with 4, 8 and 12 channels. The boards are versatile as they can be fitted individually with thermomagnetic or electronic ...

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Protect the fieldbus against voltage spikes
April 2015, Pepperl+Fuchs
Lightning protection modules with self-monitoring functionality.

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Schneider Electric’s off-grid solar and backup power inverter
April 2015, Schneider Electric South Africa
Schneider Electric Solar Business, a global leader in solutions for the solar power conversion chain, has released its off-grid solar and backup power inverter/charger, the Conext SW, in the southern ...

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