Electrical Power & Protection


Latest Articles

Double-deck ­terminal block
April 2013, Shorrock Automation
Wago’s new TOPJOB S 2002 series double-deck terminal block has the option of combining the functions of the top and lower levels. The top level, for example, can be used as a disconnect and fuse terminal ...

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Eliminate incorrect phase sequence
April 2013, NewElec Pretoria
Rotating machines are particularly vulnerable to incorrect phase sequence. Three-phase motors can rotate in the wrong direction, potentially leading to physical damage or the risk of injury to personnel, ...

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Energy measuring devices now also with UL approval
April 2013, Phoenix Contact , PI SA (PROFIBUS & PROFINET SA)
EMpro energy meters from Phoenix Contact now have UL 61010-1 approval for the US market. The network-capable meters acquire and monitor the characteristic electrical data of machines and systems. The ...

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Insulation diagnostic system
April 2013, Surge Technology
Megger’s DELTA4000 series 12 kV insulation diagnostic system offers fully automatic power factor, tan delta and tip-up testing. Intelligent temperature correction based on the actual condition of the ...

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Earth leakage protection with harmonic filtering
April 2013, NewElec Pretoria
NewElec’s GA relay range protects variable speed drives against earth leakage faults or down-grading earth leakage protection thresholds, thereby avoiding nuisance trips on start-up. All GA relay models ...

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Identifying energy peaks helps reduce costs
March 2013, Phoenix Contact
As part of a of a long-term technological collaboration, Phoenix Contact, manufacturer of industrial electronics, and Gossen Metrawatt, manufacturer of measuring and testing technology, have jointly developed ...

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Optimised solar power concentration
March 2013, Siemens South Africa
A key technology for sustainable power generation in Africa.

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Royal HaskoningDHV manages cables at Medupi
March 2013
Under construction in Limpopo province is the world’s largest dry-cooled coal-fired power station, the 4800 MW Medupi power plant. As part of the project implementation, Royal HaskoningDHV has been appointed ...

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Green building solutions from Eaton
March 2013
Forward-looking building technology saves energy, protects the environment and safeguards investment.

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Power supply for medical applications
March 2013, Vepac Electronics
MTM Power offers its extensive portfolio of the open frame AC/DC power supplies series CPAmed350 accredited to EN 60 601 and UL 60 601 for medical applications. High packing density and small dimensions ...

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Gas discharge tube surge arresters
March 2013, Surge Technology
DEHN’s DEHNgate is a family of lightning current surge arresters with a cable adaptor design for protecting coaxial systems such as CCTV, mobile radio stations, cell sites and antenna systems. Different ...

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Eliminating underload conditions
March 2013, NewElec Pretoria
NewElec’s MA Series motor protection relays provide protection against underloads or undercurrents, sustained and cyclic overload conditions, and unbalanced current, single phasing and earth leakage. ...

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Profibus accredited motor protection and control relay
March 2013, NewElec Pretoria, PI SA (PROFIBUS & PROFINET SA)
The new NewCode motor protection and control relay from NewElec is fully Profibus accredited and retains the user-friendly features that are synonymous with the company’s products. Customers will benefit ...

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Three in one low voltage motor protection relay
March 2013, PI SA (PROFIBUS & PROFINET SA), NewElec Pretoria
NewElec’s KD and KE low voltage three-phase motor protection relays are designed for conveyor, compressor, crusher, fan and pump motor protection. The KD relay facilitates certain control panel mounted ...

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Low resistance digital ohmmeter
March 2013, Surge Technology
Megger’s DLRO200-115 ohmmeter checks and measures contact resistance in high voltage circuit breakers, disconnecting switches (isolators), busbar joints and other low resistance applications. The test ...

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Megger finds cable faults fast
February 2013, Surge Technology
The new PFL22M1500 cable fault location system from Megger provides all of the facilities needed for fast, accurate and safe location of faults on underground cables. An essential resource for utilities ...

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Three-phase motor protection and control
February 2013, NewElec Pretoria, PI SA (PROFIBUS & PROFINET SA)
NewElec’s locally designed and manufactured NewCode relay is designed for the low voltage motor protection market. It provides comprehensive motor protection, with time and date stamped event and fault ...

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Low profile enclosed type power supply
February 2013, Current Automation
Mean Well has extended its RSP-200 series of 200 W AC/DC low profile, single output, enclosed switching power supplies. Featuring a 1U low profile, high efficiency and fanless free air convection cooling, ...

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Plug connectors in miniature format
February 2013, Phoenix Contact
With the M17 compact series of round plug connectors, Phoenix Contact has reduced the size of its standard connectors. The diameter of the cable connector was reduced by 2,6 mm to 18,7 mm and the total ...

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Rockwell Automation supplies drive control for Madagascar
January 2013, Rockwell Automation
Over the past year, Rockwell Automation South Africa has been using its medium voltage (MV) resources to commission 26 Allen-Bradley PowerFlex 7000 MV variable speed drives (VSDs) for the Ambatovy large-tonnage, ...

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