Electrical Power & Protection


Latest Articles

All-in-one UPS
May 2012, Turck Banner Southern Africa
New from Adelsystem is the all-in-one family of uninterruptible DC power supplies. These offer reliable, consistent backup of the DC supply, and are ideal where frequent power outages or dips occur. They ...

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The importance of surge arresters
May 2012
Lightning in South Africa causes millions of rands in damage to property annually. Each individual thunderstorm has the potential to cost a home or business time and money if it is not properly protected. ...

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Integrated, capacitive high voltage detector
May 2012
The Capdis-S1+ from Kries is an integrated, capacitive high voltage detecting system according to IEC-61243-5, providing continuous three-phase voltage indication. No external power supply or battery ...

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Low voltage three-phase relays
May 2012, NewElec Pretoria
NewElec’s KD and KE motor protection relays offer basic protection and motor management at an affordable price. The powerful, low voltage three-phase relays provide overload with user-selectable thermal ...

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Battery management for solar powered instrumentation
May 2012, Omniflex Remote Monitoring Specialists
The Powerterm industrial grade power supply/battery back-up range from Omniflex has been standardised by many major utilities around the world. It is the solution where battery backup is necessary to ...

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All-in-one UPS solution
May 2012, Turck Banner Southern Africa
Adelsystem’s all-in-one family of uninterruptible DC power supplies offers reliable, consistent backup of the DC supply and should be incorporated where frequent power outages or dips occur. These products ...

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Andasol solar energy project
April 2012, VEGA Controls SA
Vega contributes to the future of energy.

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New backup UPS from APC
April 2012, Schneider Electric South Africa
APC by Schneider Electric has introduced the APC BX650 battery backup with surge protection for electronics and computers. The unit features three South African outlets, all with enough battery back-up ...

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Two-pole phase comparators
April 2012
Dehn’s PHV phase comparators are two-pole devices that offer safe and reliable operation while testing for in-phase conditions in three-phase electrical systems. They are suitable for rated voltages up ...

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Infrared imaging increases boiler efficiency
April 2012, Mecosa
Monitoring over a period of time provides data on how the coal burning process is performing.

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Reflex iC60N and iC60H
April 2012, Schneider Electric South Africa
Schneider Electric SA introduces Reflex integrated control circuit breakers.

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Reduce the footprint, increase energy efficiency
April 2012, Beckhoff Automation
Stainless steel panels and servomotors in hygienic design.

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Comprehensive protection for LV motors
April 2012, NewElec Pretoria
NewElec’s N Series electronic motor protection relays are designed to protect LV motors. They offer the user a choice of protection features, mounting options, and a choice of appropriate motor thermal ...

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Power tubes and high-voltage capacitors
April 2012
Denver Technical Products, a major supplier of power tubes, high-voltage capacitors, high-voltage relays and hard-to-find electronic components, now also offers rebuilding of power tubes that carry better ...

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Motor protection relays for confined spaces
April 2012, NewElec Pretoria
NewElec’s 100M Series of electronic motor protection relays are compact in design and are ideally suited for fitting into gate-end boxes for protecting underground coal cutting machinery and transformers. ...

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Lightning current arresters for power supply systems
April 2012
The modular DehnBloc M lightning current arresters are energy coordinated with Dehn’s Type 2 DehnGuard arresters without the need for additional cable lengths or decoupling coils. DehnBloc M is ideally ...

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Reliable phase rotation protection
April 2012, NewElec Pretoria
There are times when it is important to ensure that machinery does not rotate in the incorrect direction, and the inclusion of phase rotation protection within a motor protection relay makes good sense. ...

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Precise timekeeping for 'Smart Grid'
March 2012, RJ Connect
Get substation automation in sync with IEEE 1588v2

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Fire protection for substations
March 2012, Alien Systems & Technologies
Pyrogen aerosol generators localise the fire source and minimise collateral damage

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Concentrated solar power
March 2012, Siemens South Africa
A key technology for sustainable power generation in Africa. The average daily solar radiation in most African countries makes concentrated solar power (CSP) one of the most attractive renewable energy ...

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