Electrical Power & Protection


Latest Articles

Power cable fault locator
February 2014
The PFL40A Series cable fault locating system from Megger provides a safe, efficient and easy to use solution for quickly identifying and isolating faults over a wide variety of power distribution cables. ...

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Short circuit intervention
February 2014, NewElec Pretoria, PI SA (PROFIBUS & PROFINET SA)
A short circuit condition occurs when the insulation between the phase conductors fails and the load current level exceeds the normal locked rotor current levels that a motor would draw during start-up. ...

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500 W enclosed low profile power supply
January 2014, Current Automation
Mean Well has introduced its new low profile enclosed type power supply with single output and PFC function – RSP-500 series (500 W). The complete product line now covers the ranges 75, 100, 150, 200, ...

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Digital earth tester
January 2014
The Megger DET3TD digital earth tester is a compact instrument designed to measure earth electrode resistance. It uses the three-terminal method of measurement where the resistance of the current circuit ...

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Protection of mobile radio stations
January 2014, DEHN Protection South Africa
Radio base-station protection using Dehn’s DEHNvap CSP combined surge arresters.

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Alwyn Rautenbach talks on solar power and the Assmang Khumani project
December 2013, Iritron
SA Instrumentation and Control speaks to Iritron’s managing director about photovoltaic solutions and their suitability for industrial projects in southern Africa.

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Low profile 75 W power supply with PFC
December 2013, Current Automation
After the launch of RSP-150 (150 W) series, Mean Well has extended its lower wattage models by the introduction of the RSP-75 series, the 75 W low profile enclosed type switching power supply with PFC ...

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Space-saving terminal blocks
December 2013
DEHN’s DEHNconnect SD2 surge arresters are space-saving terminal blocks with a width of 6 mm. Featuring integrated surge protection, they have a modular disconnection function that allows the user to ...

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Eaton’s UPSs provide effective power protection
December 2013
Eaton has announced a new range of high-efficiency uninterruptible power supplies developed specifically to meet the needs of contractors, installers and facilities managers with requirements for a cost-effective ...

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Safe buildings a reality with Prisma Plus
December 2013, Schneider Electric South Africa
Schneider Electric introduces modular low voltage switchboards.

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Insulated tools and equipment
November 2013
Haupa‘s 1000 V insulated tools are manufactured and tested in accordance with the latest conditions set out in national and international standards. If the additional safety measures are observed, they ...

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Dehn’s intelligent surge arrester system
November 2013, DEHN Protection South Africa
Dehn Protection South Africa has introduced Blitzductor, a modular DIN rail TVSS for series insertion into low energy measurement and control circuits (typically twisted pair with or without a ground ...

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Phase angle meters
November 2013
Megger’s PAM400 phase angle meters are compact, lightweight, fast and easy to use. They offer a convenient and cost-effective solution for a wide range of applications, including checking polyphase metering ...

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Single vs three-phase motors
November 2013, WEG Africa
Three-phase motors with VSDsoffer technical benefits and cost reduction over single-phase motors.

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Connected to the wind
November 2013
Stable connections for transmitting data, signals and power in wind turbine applications.

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Surge arrester for multi-pair telecom cabling
November 2013, DEHN Protection South Africa
In today’s modern world, the uninterrupted use of information technology and automation equipment is often taken for granted. However, lightning discharges, surges and over-voltages can be extremely harmful ...

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Power monitoring solution via the Web
November 2013, R&C Instrumentation
In a joint local effort, Omniflex and R&C Instrumentation have developed a complete power monitoring system available on a local network or via the Internet. Nearly every factory, shopping mall, airport, ...

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Power supply for LED applications
November 2013, Current Automation
Mean Well has introduced a 40 W AC/DC power supply to fulfil requirements of the LED lighting market. Featuring 110-295 VAC input range, these new units have six selectable constant current outputs from ...

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Lightning protection for photovoltaic systems
October 2013, DEHN Protection South Africa
In recent years, photovoltaic (PV) systems have become a significant sector within the energy market. They increase energy security, enhance sustainability, reduces pollution and keep fossil fuel prices ...

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Active redundancy for high system availability
October 2013, Phoenix Contact
The Quint Oring active redundancy module for an output current of 80 A is a new addition to the Phoenix Contact’s line that already includes 20 and 40 A models. For the first time, there is a solution ...

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