Electrical Power & Protection


Latest Articles

Energy monitoring from the terminal
June 2010, Beckhoff Automation
Beckhoff Building Automation: PC-based automation as the basis for energy efficient buildings. Investors and planners are faced with the challenge of coming to grips with energy costs without making ...

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Megger's portable relay tester
June 2010, Surge Technology
Megger’s SVERKER 760 and SVERKER 780 protection relay test sets can now optionally be ordered with a rugged protective case that makes them even easier and more convenient to store, transport and use. ...

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Protecting photovoltaic installations
June 2010, Phoenix Contact
The PV-SET and VAL-MS 1000DC family of surge arresters from Phoenix Contact effectively protect photovoltaic systems against surge voltages. There are optimum protective devices available for all generally ...

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230 W battery charger
June 2010, Current Automation
MEAN WELL has introduced a new product in its AC/DC charger range. The PB-230 is a 230 W aluminium enclosed charger with active PFC function. Along with the existing PB series products, users now have ...

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160 W AC/DC green adapters
May 2010, Current Automation
MEAN WELL has further expanded its AC/DC green adapter line by introducing the GS160 series. The new 160 W adapter complies with worldwide regulations for external power supplies, including ErP second ...

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Programma's B10E power supply unit
May 2010, Surge Technology
The best way to ascertain whether or not solenoids and protective mechanisms are sluggish or set improperly is to perform a test at minimum tripping voltage. The minimum trip voltage test is described ...

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Low cost 30 Watt converter
May 2010, Current Automation
With the PSD-30 series, MEAN WELL has added a new 30 W unit to its DC/DC line that enlarges the offering of its low wattage DC/DC open frame switching power supply products. Accompanying the existing ...

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Protection for antenna systems
May 2010, Surge Technology
DEHN’s DEHNgate family of lightning current surge arresters feature a cable adapter design and protect cell sites and antenna systems from potential damage. Depending on the application, different mechanical ...

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600 A sealed contactor
May 2010, Denver Technical Products
GIGAVAC has announced the GX16 – a low cost 600 A SPST (single pole single throw) normally open sealed contactor just 76 mm tall and weighing less than a kilogram. The GX16 further expands GIGAVAC’s line ...

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Ai-Tec's acoustic friendly generator range
May 2010
Included in Ai-Tec’s range of industrial and commercial equipment, are low noise generators, available from 2 kVA to 2500 kVA for industrial, commercial and domestic applications. The acoustic design ...

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Siemens at African Utility Week
April 2010, Siemens South Africa
During African Utility Week 2010 in February, Siemens Power Distribution exhibited its portfolio of medium voltage switchgear, protection and automation equipment and service solutions. Business unit ...

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Advanced energy management solutions
April 2010
CHI Control Components is launching the CIRCUTOR range of products into the South African market. CIRCUTOR is a company specialising in the design and marketing of innovative electrical energy efficiency ...

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Open frame power supplies
April 2010, Current Automation
Rising energy costs and environmental concerns are driving the requirement for energy saving products. In response to the trend for low power consumption, MEAN WELL has introduced its new green concept ...

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Slim DIN rail supply
April 2010, Current Automation
In response to the growing demand for narrower DIN rail mounted power supplies, MEAN WELL has introduced the WDR family with single phase input range. WDR-120 is a 120 W AC/DC slim DIN rail power supply ...

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Series BLG battery chargers
April 2010, Vepac Electronics
MTM Power’s modular chargers of the BLG series are equipped with a microcontroller. They are available with an output power of 650, 1300 or 2000 W and are free scalable. The units have been designed for ...

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Lightning and surge protection
March 2010, Extech Safety Systems
Application note – basic principles.       Abstract This application note discusses the nature of the threat to electronic instrumentation and communications networks posed by voltage surges induced by ...

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Energy monitoring and targeting
March 2010, Endress+Hauser South Africa
Energy has become a key area of attention in recent years. South Africa in particular has a larger than average problem as a result of the capacity shortages it faces in the short term. With a predicted ...

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Medium voltage distribution solutions
March 2010, Schneider Electric South Africa
Schneider Electric’s RM6 provides high reliability in distribution networks while providing exceptional levels of safety. Schneider Electric offers medium voltage distribution solutions to enhance electrical ...

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Accurate Rogowski coil sensors
March 2010, Denver Technical Products
LEM has introduced the first of its AC current sensor families based on Perfect Loop Technology. After calibration, the new RT series achieves absolute accuracy of better than 0,65% – including position ...

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Miniature reliable power supplies
March 2010, Current Automation
MEAN WELL’s new generation HRP-100 series miniature power supplies with high reliability, low power consumption and active PFC have been introduced. The addition of the 100 W enclosed type units expands ...

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