Power quality

Article (3)
  • Get grid smart
    By turning the classic linear energy grid into an intelligent and interactive network, smart grid is transforming the way we use energy.
  • Is power protection costing more than it should?
    All electronics in an organisation - from desktops to data centres - require continuous, clean power. Anything less puts businesses at risk of data corruption, equipment damage and unplanned downtime. Most organisations meet this requirement by having a central UPS that serves an entire building/data centre, or distributed UPSs placed closer to the equipment being protected, or both.
  • Six simple steps to avoid weather-related power quality problems
    Eaton, an electrical power quality systems supplier, warns that electrical infrastructures across Australia will experience increased weather-related stresses and offers advice on how to protect against power outages during severe weather, heat, electrical storms and cyclones during the upcoming summer season.
White Paper (1)
  • The Seven Types of Power Problems
    Many of the mysteries of equipment failure, downtime, software and data corruption, are often the result of a problematic supply of power. This white paper will describe the most common types of power disturbances, what can cause them, what they can do to your critical equipment, and how to safeguard your equipment, using the IEEE standards for describing power quality problems.
Feature (1)
Product (80)
  • International Rectifier IRS2980 LEDrivIR high-voltage buck regulator control IC
    The International Rectifier IRS2980 LEDrivIR is a high-voltage buck regulator control IC for LED light bulb replacement, LED tube lighting and other non-isolated LED driver applications.
  • Emerson Network Power LDS100 series power supplies for LED lighting
    The LDS100 series 100 W LED power supplies offer a choice of models - featuring an input range of 120 to 277 VAC (H models) and an input range of 100 to 240 VAC (U model).
  • Cincon CFM101S high-density/high-efficiency switching power supply range
    The Cincon CFM101S series of high-density/high-efficiency switching power supplies is available in a compact open-frame package with active power factor correction and convection cooled operation.
  • Linear Technology LT1431 three-terminal adjustable shunt voltage regulator
    Linear Technology has released a high-reliability, MP-grade version of the LT1431, a three-terminal adjustable shunt voltage regulator that operates over a -55 to 150°C junction temperature range.
  • Advantech APAX-5343 and -5343E PAC power supply modules
    Advantech has released two PAC power supply modules with 72 W output power for their APAX series. The APAX-5343 and -5343E have passed Energy Star compliance and provide a power transmission efficiency of over 88% from AC input to DC output, providing power for more APAX modules.
  • Connector-Tech ALS Cannon APD plugs
    The Cannon APD plugs have an IP rating of IP69K and are suitable for use in transport and the food and beverage industry.
  • TekMark PSW-Series multi-range DC power supply
    The PSW-Series is a single output multi-range programmable switching DC power supply covering a power range up to 1080 W.
  • Schaffner RN series current compensated chokes
    The Schaffner RN series current compensated chokes are suitable for lighting ballasts and power supplies for a wide range of lighting applications including LEDs, and low-pressure and high-pressure discharge lamps.
  • Power Parameters UNI-T UT500 series insulation testers
    The UNI-T UT500 series, battery-powered insulation testers are available as 1000 V max (model 501) and 2500 V max (model 502) models. The UNI-T insulation testers are characterised by compact size (150 x 100 x 71 mm) and a large, backlit display measuring 71 x 34 mm.
  • North Atlantic Industries 44LS1 input power line conditioner
    The input power line conditioner 44LS1 from North Atlantic Industries is suitable for rugged land, sea and air applications. The conditioner protects downstream DC-DC converters from MIL-STD-704A-F and MIL-STD-1275 transients, including high- and low-voltage transients as well as power interruptions lasting up to 50 ms. In addition, the 44LS1 provides reverse polarity protection for downstream electronics.
  • Fluke power quality analyser
    The 434/PWR power quality analyser can be used to conduct energy consumption studies and electrical load analysis, and to perform power quality logging and analysis surveys. The instrument helps electricians, field service engineers and maintenance technicians uncover energy waste in commercial and factory buildings as well as in equipment and machines. It can also help technicians demonstrate the benefits of efficiency improvements by testing energy consumption.
  • AEMC power quality analyser
    The model 8335 three-phase power quality analyser is intended for technicians and engineers to measure and carry out diagnostic work and power quality work on one-, two- or three-phase networks. Four voltage and four current inputs are provided.
  • Balluff wind energy equipment power supply
    The Balluff semi-potted power supply for use in wind energy equipment has an efficiency rating of 93%. It is designed for high shock and vibration loads and a long service life of nearly 20 years with a MTBF of 800,000 h.
  • IECI RSM-8Rx series console management switch with remote power reboot
    The RSM-8Rx series console management switch provides secure remote access to RS232 console ports and the ability to power cycle remote IT equipment. Two models are available: RSM-8R4 providing eight RJ45 serial ports and four IEC reboot power outlets, and RSM-8R8 that provides eight RJ45 serial ports and eight reboot power outlets.
  • Automated Control Engineering SNT8024 switchmode DC power supply
    Automated Control Engineering and FEAS have introduced the SNT8024 switchmode DC power supply, suitable for harsh industrial environments.
  • Modempak Clever intelligent PDU range
    The Modempak Clever range of intelligent network (LAN, WAN) monitored and controlled power distribution units, environmental monitoring and automatic switches is designed for use in cabinets for the management of servers and other power devices connected to the PDU. Typical applications include: data centres; utilities monitoring equipment; managing servers and IT equipment in remote office locations; and managing mission-critical environments in health and telecoms.
  • Legrand Stop & Go automatic power supply resetting device
    The Stop & Go is an intelligent and secure automatic resetting device designed to protect circuits in homes and commercial properties. The device automatically restarts the power supply after an electrical fault.
  • Wieland Electric Wipos PB1 power supply series
    The Wieland Electric Wipos PB1 power supply series is suitable for electrical installations in various special-purpose and industrial buildings, where cabling is laid in suspended ceilings, in intermediate floors or in the dado trunking. Decentralised installation is often carried out at the same time, ie, the components for specific switching or automation tasks are also built into the ceiling, floor or trunking.
  • FEAS SNT230-K switchmode power supply series
    The FEAS SNT230-K series switchmode power supplies are robust devices to power sensitive loads in harsh industrial environments. The devices feature modern construction with high RF shielding and high reliability integrated into a functional and stable casing.
  • Mean Well TN/TS-3000 series DC/AC true sine wave inverters
    The Mean Well TN/TS-3000 series DC/AC true sine wave inverters are lightweight and have a claimed efficiency of up to 92%. They can provide 3000 W continuously, 3450 W for 3 min, 4500 W for 10 s, or 6000 W surge power for 30 utility cycles.
  • Western Telematic PTS-9CM20-2 automatic power transfer switch
    The PTS-9CM20-2 automatic power transfer or redundant power switch from Western Telematic is claimed to provide a reliable method of automatically switching equipment to a backup power source. By constantly monitoring a primary power source, redundant power switches can decide when to switch to a secondary redundant source to ensure that critical network devices are always up and running.
  • Eaton Intelligent Power Manager software
    The Eaton Intelligent Power Manager software and shutdown modules integrate into VMware’s vCenter Server virtualisation platform to assist in reducing data centre infrastructure and operating costs, as well as increasing productivity and responsiveness.
  • SVC Light (Static Var Compensator) with Energy Storage
    The SVC Light (Static Var Compensator) with Energy Storage is the latest development in the FACTS (flexible alternating current transmission systems) family. The technology combines SVC Light with scalable Li-Ion battery storage technology.
  • Moxa IMC-P101 industrial PoE media converters
    The Moxa IMC-P101 series of UL508-certified industrial PoE media converters offer a long-distance ethernet-to-fibre communications solution, while adding PoE functionality to reduce cabling costs and set-up times.
  • VMR series remote power distribution units
    The VMR series remote power distribution units (PDUs) with output power metering allow secure power management of rackmount equipment via web browser, telnet, external modem or local terminal interfaces.
  • Meanwell PLN-45 LED power supply
    The Meanwell PLN-45 is an AC/DC enclosed-type LED power supply with a fully isolated plastic case designed for dustproof and waterproof (IP64-rated) situations. This 45 W unit joins the existing PLN 30, 60 and 100 W models and offers greater flexibility for LED system designs.
  • Interworld Electronics & Computer Industries VMR series managed power controllers
    The high-current VMR series managed power controllers allow secure power management of rackmount equipment via IP, external modem or local terminal.
  • Eaton power management and protection software
    The Eaton power management and protection software range, including Intelligent Power Manager, NetWatch, Network Shutdown Module (NSM), Personal Solution-Pac and LanSafe, allows Windows 7 enterprise servers and small business PCs to be monitored and safely shut down during a power failure, protecting and saving valuable data.
  • Western Telematic MPC-HD series switched PDUs
    The MPC-HD series switched PDUs from Western Telematic are designed to both deliver and switch high-amp power, to provide secure, remote power control and reboot capabilities for high amp devices such as Sun Blade 6000, Cisco Catalyst 6500 LAN switches, Cisco Nexus 7000 Data Centre switches and HP 7000 Blade servers.
  • Metal Work Pneumatic Australia Pneumo-Power electric generator
    Pneumo-Power is an electric generator that is powered either by exhaust air (reduced environmental impact) or a compressed air supply to create 24 VDC locally, where wiring may be costly or impractical to install.
  • FEAS Accupacks LDR4012 and LDR4024 charging regulators
    The FEAS Accupacks LDR4012 and LDR4024 charging regulators buffer 12 and 24 V systems, connecting between the line voltage and an electrical installation to provide DC to equipment. In the event of a mains power failure, the onboard sealed batteries supply power to equipment connected to the outlet. The supply duration depends on the load current of the consumer. The batteries can be easily replaced, if necessary.
  • Mean Well HLG-240 and HLG-240H outdoor power supplies
    The Mean Well HLG-240 and HLG-240H series of outdoor power supplies are designed to provide power for outdoor LED lighting and architecture illumination systems.
  • Eaton Intelligent Power Manager
    The supervision and protection range of Intelligent Power Manager, NetWatch, Network Shutdown Module (NSM), Personal Solution-Pac and LanSafe software are now compatible with Microsoft Windows 7 operating system.
  • Schaffner power quality product range
    The Schaffner range of power quality products are designed to provide flexible solutions for improved power quality. The product range includes ECOsineTM active and passive harmonic filters, line and output filters and load reactors, including sine wave and dv/dt filters.
  • Mean Well SDR single output DIN rail power supply
    The Mean Well SDR single output DIN rail-mounting power supply range has been extended into lower wattage applications with the SDR-120 series of AC/DC isolation Class I power units. Typical applications include factory automation and electro-mechanical installations.
  • MON32 Inline PDU monitor
    The Inline PDU range of power distribution monitoring units has been expanded with the release of the MON32 unit - a 32 A version that has the same features as the 15 A model, but with the ability to handle a greater current.
  • Rackpower coloured PDUs
    The Rackpower coloured power distribution units are designed to enable colour configuration of equipment installations in equipment racks.
  • Bravo switched and monitored PDUs
    The Bravo range of switched and monitored power distribution units (PDUs) is equipped with the latest DGP technology to provide more reliable and many advanced functions over the models it replaces, to make power management more user friendly to execute.
  • Rackmount power supply
    The Mean Well HRP-75 series is a 75 W AC/DC enclosed power supply, designed to provide energy savings through features such as low ‘no-load’ energy consumption, built-in active PFC function (PF >0.9), high operating efficiency and built-in remote ‘on/off’ control.
  • Power supplies with programmable output voltage
    The Mean Well SPV range of single output power supplies with programmable output voltage function has been extended to the lower wattages of 150 and 300 W, with the introduction of the SPV-150 and SPV-300 series.
  • DC power rectifier
    The eSure DC power rectifier is designed to be used to power electronic equipment in the telecommunications industry, delivering a claimed 97% energy efficiency, meaning far less energy is wasted in the conversion from AC to DC power. Less wasted energy results in an equivalent reduction of generated heat, which results in lower cooling requirements and reduced infrastructure costs.
  • DC-DC converters
    The Vicor DC-DC 28 VDC input family has been expanded with the addition of eight wide-input Micro DC-DC converters.
  • Intrinsically safe power supply
    The RN221N combined active barrier and power supply is SIL2 rated and provides galvanic isolation for the 4 to 20 mA measured signal. It is suitable for use in hazardous areas and can be powered by 20 to 250 VAC/DC, reducing the need for different versions across the plant.
  • Janitza DIN-rail power quality analyser
    The Janitza DIN-rail mounting, UMG 511 power quality analyser is capable of providing 24/7 continuous monitoring and analysis of single- and three-phase, three- and four-wire networks.
  • PRO-M switchmode power supplies
    The PRO-M range of switchmode power supplies provides a claimed 50% space saving over regular power supplies and no ventilation gap required between multiple units, enabling them to be installed into tight locations within switchboards or machines.
  • DIN-rail power supplies
    The PBAMR product family is a Class II output DIN-rail switching power supply that is suited to building and factory automation applications and electromechanical and marine-related installations with medium to high power demand.
  • Power factor correction capacitor banks
    Power factor correction capacitor banks from Janitza Electronics are suitable for LV three-phase power distribution. They are supplied with detuning chokes, discharge resistors, internal busbar system and HRC fusegear.
  • Energy-storing capacitors
    The WIMA SuperCap double-layer capacitors are now available as cascaded and balanced modules with capacitances up to 200 F or with nominal voltages up to 28 VDC, for use in applications such as slip control of large wind power plants, starting micro-turbines, fuel cell start-up, starting large V16 or V24 cylinder motors in train or naval drives, energy storage in conjunction with photovoltaic devices, recuperation of braking energy for automobiles and parallel connection to batteries in vehicles or other applications.
  • Branch circuit power meter
    PowerLogic Branch Circuit Power Meter (BCPM) is a high-accuracy, full-featured meter designed for the multi-circuit and minimal space requirements of a distribution board or a high-performance power distribution unit (PDU). In data centres, for example, the meter helps plan and optimise the critical power infrastructure to meet the demands of continuous availability.
  • Strain gauge signal conditioner
    The ACT20P-Bridge strain gauge signal conditioner and isolator provides four switch-selectable input ranges of 0 to ±10, 20, 30 and 50 mV and proportional analog output of between 0-22 mA with loads of <600 Ω, and 0-11 V with loads >1 kΩ. Accuracy is claimed as being better than 0.05%, with a temperature drift of better that 50 ppm over the range of -40 to +70 °C.
  • Transformer analyser
    The Serveron continuous, online, dissolved gas analysis monitor for transformers is available in two models, both based on closed-loop gas chromatography.
  • Protective relay testing
    To enable electrical installations and relays to be tested to the new IEC 61850 international communication standard for electricity substations, an IEC 61850 option has been introduced for the MPRT protective relay test system, together with MGC configurator software.
  • Low harmonic drives
    The VLT low harmonic drive eliminates the harmonic disturbances on the supply grid by actively imposing currents into the grid so that the high-quality sine wave of the grid current is restored.
  • High-density power hub
    The FieldConnex 500 mA high-density power hub is an addition to the FieldConnex fieldbus interface products, designed for fast installation and reliable long-term operation in a fieldbus infrastructure.
  • Power quality monitor
    The KoCoS EPPE C8 power quality and power line monitor is a comprehensive electrical analyser in a panel-mounting instrument package suitable for applications that include busbar, feeder and individual load monitoring and power quality analysis.
  • Kyoritsu 3128 high-voltage insulation tester
    The Kyoritsu 3128 high-voltage insulation tester has a variable test voltage of up to 12 kV at 35 TΩ, with a short-circuit current of 5 mA. In addition to insulation resistance testing, the tester offers a range of diagnostic insulation testing.
  • Energy monitor
    The Sentron PAC4200 multifunction power monitoring device is the latest addition to the Siemens Power Management offering for use in energy management systems.
  • AC power load
    The 3091LD AC power tester is designed to provide precisely controlled nonlinear loads for testing AC power generation equipment such as UPSs, AC sources, electrical switches and circuit breakers.
  • Electrical ground test kit
    The Tower and Substation GroundFlex Field Kit includes the GroundFlex Adapter model 6474 and Ground Resistance Tester model 6472 to test ground resistance of individual power transmission tower legs and total resistance without disconnecting the overhead ground wire. It is designed to save time and money and enhance safety for operators.
  • Wire wound resistors
    The Merlin Power Resistor range is available in a wide range of resistances and wattages from 20 to 2000+.
  • AC/DC power supplies
    The pCon 2000 series of AC/DC power supplies is designed for installation into control cabinet applications to deliver up to 120 W of power.
  • Power quantity monitor
    The Power Standards Laboratory PQube power quantity monitor measures voltage disturbances and steady-state trend values and stores the data on an SD card.
  • Power condition assessment
    Delta3000 is an automated insulation power factor test set to non-destructively assess the condition of high-voltage electrical equipment such as transformers, circuit breakers and motors, and measuring the excitation current and inductance of transformer windings
  • Harmonic filters
    The ECOsine FN3410/3412 series of three-phase harmonics filters is the latest generation of Schaffner broadband passive harmonics filters to enable better utilisation of the power capacity of distribution transformers and networks, thereby increasing efficiency to either allow more nonlinear load to be connected to the same system or postpone expensive upgrades to the electrical system capacity.
  • DIN rail power supplies
    The SDR-240 is the first model in the Meanwell Slim DIN rail product series of DIN rail power supplies. The slim design of 63.5 mm in width saves space on the rail and makes it 42% smaller in size in comparison to its predecessor model.
  • Harmonic filtering solutions for VSDs
    NHP’s Advanced Active Front End/Regenerative VSD solutions produce a very low level of harmonic distortion in addition to providing benefits for managing regenerative energy back into the mains power grid.
  • Active power filter
    The SPC smart power conditioner from PQ Tech is an active harmonic filter series suitable for single-phase sub-distribution circuits in commercial buildings, shopping and entertainment centres and small industrial enterprises.
  • DC to AC inverter
    The Matrix modular DC to AC inverter is an integrated inverter power system designed for applications where high reliability backup AC supply is required.
  • Line reactors for power systems
    The Practical Control Solutions line reactors are designed to attenuate harmonic distortion by impeding unwanted harmonic current resulting from the switching techniques used in many of these devices, which reflect unwanted harmonics back into the mains, often interfering with other equipment and causing excessively high neutral currents.
  • Power disturbance monitoring relay
    The PQube DIN rail-mountable power and disturbance monitoring relay captures voltage disturbances and time-stamped waveforms, storing captured information on a plug-in 4 GB SD card that provides exportable CSV Excel-compatible and GIF picture files via ethernet with email, DHCP, FTP and SNTP options.
  • ConnectPower switchmode power supply units
    The ConnectPower single- and three-phase primary switchmode power supply units are claimed to offer high levels of efficiency as well as compact dimensions and moderate heat generation.
  • Sound-attenuated generator sets
    A series of 100, 125 and 150 kW tier 3 generator sets with sound-attenuated enclosure systems has been added to the Cummins product range. With a sound level of 67.5 dB(A), the 100 kW unit is claimed to be one of the quietest generator sets available at that power node.
  • DIN rail power supply
    The Meanwell MDR-100 series of 100 W miniature single output DIN rail switching power supply units are designed for use in automation, electromechanical and data communications applications.
  • Remote generator set monitoring
    The PowerCommand iWatch wireless monitoring system provides a simple method of remotely monitoring generator sets via cellular or satellite networks.
  • Power factor correction contactor
    The range of capacitor contactors of the EPCOS B44066S*J230/N230 series has been extended by a 100-kvar version for PFC equipment with and without reactors, which increases the range to a total of seven power stages: 12.5, 20, 25, 33, 50, 75 and 100 kVAr.
  • DC power supplies
    The Xantrex XTR series of programmable DC power systems is designed for test, production and quality assurance applications.
  • Enclosure power distribution units
    Eaton Corporation has available the Powerware Enclosure Power Distribution Units (ePDU). The broad portfolio of enclosure-based solutions is suitable for datacentres across all power densities providing flexible power distribution for mixed IT environments including blade servers, network and storage applications.
  • Data centre management suite
    The RimatriX5 Computer Multi-Control Top Concept (CMC-TC) is a monitoring system for physically securing data centre environments, preventing unnecessary down time and excluding unauthorised access.
  • Isolated switchmode power supplies
    Two isolated dual-output power supplies have been added to the Meanwell G3 series product family. The RID-125-1205 and RID-125-2405 are AC/DC switching power supplies that can provide 125 W by free air convection.
  • AHF004 Active harmonic filters
    The AHF004 active harmonic filters provide automatic harmonics reduction, independent of network stability and power factor correction.
News (6)
  • Major projects to meet future power demand
    Major projects have begun to meet the growing need for power in south-east Queensland, according to Mines and Energy Minister, Geoff Wilson.
  • Communities reduce ecological 'footprint'
    A recent survey conducted in Canberra indicates that people within communities are taking personal steps towards greater sustainability in their homes and workplaces. The 2007 Sustainability Community Attitudes Study consisted of qualitative research and a quantitative survey of 1000 individuals in Canberra.
  • Smart meters to harness energy and greenhouse savings
    A recent report from Total Environment Centre (TEC) claims that a roll-out of ‘smart’ electricity meters could save 19.4 million tonnes of greenhouse emissions. TEC is a resource and support base for environmentalists that lobbies and campaigns local, state and federal government to protect the local environment.
  • Sun could jeopardise electrical systems
    A fresh bout of heightened solar activity has officially begun, bringing with it increased risks for power grids, critical military, civilian and airline communications, GPS signals and even cell phones and ATM transactions.
  • Solar cells becoming thinner and cheaper
    Scientists at Durham University in the UK are researching cheaper ways of harnessing the sun to increase the economic viability of solar energy and reduce reliance on fossil fuel energy.
  • Developing Australia's highest density data centres
    IT company Digital Sense is using multi-million dollar infrastructure technology from Emerson Network Power Australia to develop Australia’s highest density data centres, to support the growing demand from Australia’s largest government and corporate organisations.
Case Study (4)
  • Improving power quality and lowering energy consumption
    A focus on improved power quality, green energy and lowering energy consumption, the Walkers Arms Hotel at Walkerville, South Australia, is a benchmark for the use of innovative new technologies.
  • Business-critical electrical supply continuity solution for NZ ISP
    ICONZ, one of New Zealand's first internet service providers, is implementing power protection and cooling solutions from Emerson Network Power to ensure business-critical continuity at its newly built data centre in Auckland
  • Ilisys carbon-neutral data centre
    Ilisys hosts 20,000 businesses on their 100% 'green' powered data centre using energy generated from renewable sources that can be replaced or can't be depleted, like solar and wind and that produce no greenhouse gases
  • Electricity supply quality for large-scale arts complex
    Temperature and humidity control are vital for preserving sensitive art and historical collections and these environmental control systems depend on reliable electric power to ensure they're always functioning
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