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 ...
Two-pole phase comparators April 2012, Surge Technology 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 ...
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 ...
Power tubes and high-voltage capacitors April 2012, Denver Technical Products 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 ...
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. ...
Lightning current arresters for power supply systems April 2012, Surge Technology 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 ...
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. ...
Fire protection for substations March 2012, Alien Systems & Technologies Pyrogen aerosol generators localise the fire source and minimise collateral damage
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 ...
Voltage detection in MV switchgear March 2012, Surge Technology Integrated voltage indicator with relay output.
The Vois R+ from Kries is an integrated capacitive voltage indicator according to the IEC 61243-5 standard for voltage detecting in medium voltage switchgear. ...
Omron South Africa completes first solar PV installation March 2012, Omron Electronics Omron South Africa has recently completed its first photovoltaic installation using a 10 kW grid-tied 400 V inverter. The solar PV panel is roof mounted on a light weight aluminium structure designed ...
Avoiding short circuits March 2012, PI SA (PROFIBUS & PROFINET SA), NewElec Pretoria In a motor circuit a short circuit condition occurs when the insulation between the phase conductors fails and the load current level exceeds the normal locked rotor current level that the motor would ...
SPS power supply from Manson March 2012, MANTECH The SPS series power supply from Manson is a high power regulated, variable voltage, constant current switch mode power supply with voltage and current indication. The SSP series provides 25, 40 and 60 ...
Surge arrestors for DC photovoltaic applications March 2012, Surge Technology The rapidly growing PV industry has placed exceptional demands on the available SPD products intended to protect systems components such as inverters, arrays, or combiner box components from the effects ...
Sustainable, cost-effective solutions from Eaton March 2012 Forward-looking building technology saves energy, protects the environment and safeguards investment.
At Eaton, green building solutions encompass the interlocking areas of power distribution, power ...
