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How intelligent, logical and complete power management solutions provide relief for some of today’s worst power-related headache. Many organisations today use by Jim Tessier, Eaton Corporation standalone software from multiple vendors to monitor and manage their uninterruptible power systems (UPSs), power distribution units (PDUs) and other crucial power quality and environmental devices. Short on features and poorly integrated with other management resources, these outdated applications only add further complexity to a variety of common power-related administrative challenges… (more)
This article explains how system availability and uptime are affected by AC power outages and provides quantitative data regarding uptime in real-world environments, including the effect of UPS on up time. The data includes the effects of power outage frequency and duration, the restart behaviour of the equipment, and factors related to the reliability of the UPS… (more)
The functions of transformer-based and transformerless UPSs might seem similar on the surface, but they have very different applications, and using the wrong device in the wrong application can be disastrous… (more)
For many, energy measures revolve around the consideration of thermal issues in the building’s fabric. Applied techniques include remedies such as insulation, glazing, and heat loss counter-measures. For others, it is lighting, albeit often limited to merely installing low energy consumption systems. Those with significant heating requirements may see efficient boiler systems as the answer… (more)
With uninterruptible power supplies (UPSs), as with most things in life, you get what you pay for. That is to say, if you are a regular user of UPSs it is worth spending a little time getting to know the basics of UPS technology to ensure that you get what you ask for… (more)
Standby power generators are becoming an essential component of any emergency power strategy, often complementing the installation of uninterruptible power supply (UPS) systems and power inverters… (more)
Over the past few months there have been many presentations, discussions and seminars around the issue of “green computing.” An important issue for being green is that it should not be a marketing ploy but a real intention to reduce the carbon footprint, explore renewable energy and recycle materials… (more)
Just when we thought there would be no more load shedding we are now told that is “scheduled maintenance.” During April residents and businesses in the greater Johannesburg area experienced many power interruptions, and have begun to question whether they are being told the truth… (more)
The infrastructure that underpins contemporary society must operate with very high reliability. In contrast to the advanced technology deployed in data storage centres, internet server farms and communications central offices, most of them rely for near 100% “up-time”, or system-availability, on a very mature technology; the lead-acid battery… (more)
To be green or not green is the question. Or is it? How many green stories are real or are just another marketing ploy? We must give it to the marketers that they can find something green in just about everything they are trying to sell. But there are many real green stories and it is those that I would like to feature on our green issues page… (more)
In a few months the world’s largest and most anticipated sporting event will take place in South Africa. South Africa and the African continent will be showcased. Millions of viewers will tune in to matches, the broadcast of which will be critically dependent on the provision of uninterrupted high quality electrical power. The South African electrical supply industry (ESI) is critical in the preparation and execution of this historical event… (more)
Companies rely on a UPS to deliver continuous power without any disruption to their business, a maintenance plan is a critical component in ensuring that a UPS minimises the risks of downtime and performs as expected. Implementing a preventive maintenance service plan for a UPS is much like completing routine repairs and inspections on a vehicle. Not only is completing scheduled maintenance recommended by every auto manufacturer, but the findings can help detect a wide range of ailments before they become serious issues. In the same way, preventive maintenance helps ensure the ongoing integrity of the UPS… (more)
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