Power Protection

IGBT Explained

IGBT's (insulated-gate bipolar transistors) are used in modern Uninterruptible Power Supplies (UPS) combining high efficiency with fast switching whilst keeping the frequency output without narrow tolerances. Stable seamless electrical power supply. IGBT provide extremely low voltage distortion and improves the power efficiency especially when supporting...

Peak Lopping Explained

Peak load lopping also known as ‘peak load shaving’ & ‘load sharing’, is the used when the GRID supply can’t be increased due to cost or location and you need more power than is available. When the more power is required and the GRID can’t...

eBay parts won’t save you

Does eBay provide your only opportunity for spare parts for aged equipment? Can’t get parts anymore, not even from Ebay? eBay, your last hope for spare parts has failed you? Ever needed parts Urgently? And can’t get them from anywhere? Not even eBay? eBay spare...

Phase Shift – What Is It?

Phase shift happens what there is more than one power feed coming into a building. Each transformer supply needs to have the same phase rotation and the identical phase location. (zero) If there is only one supply, then there is no issue. On the other...

Power Cuts Reality

Moorside nuclear power plant officially cancelled. Japanese firm Toshiba said the huge loss incurred by one of its UK subsidiaries was due to writing off hundreds of millions of pounds of investment in the proposed Moorside nuclear power plant, in West Cumbria. Former EDF chief...

How does a Micro Grid work?

As briefly described in our other post, a microgrid is a localised energy grid, which is generally linked to the main grid but can disconnect automatically and function as its own independent grid when necessary. Traditionally (and as still occurs for the vast majority of...

Battery Energy Storage Systems (BESS)

A battery energy storage system is a system that stores energy via the use of a battery technology for it to be used at a later time. There are a large range of battery technologies that form the generic term Battery Energy Storage System. This...

What is load shedding?

As explained elsewhere, a generator cannot take 100% of its load in one go as this would cause the frequency and voltage to drop too much. This generally means that you have to oversize the generator so that it can comfortably accommodate the initial site...

Power Conditioning – Using Flywheel Rotary UPS

You may well ask how flywheel Rotary UPS provide power conditioning. The exact method depends from manufacturer to manufacturer but taking for example Active Power's methodology, its fast acting microprocessor and fast voltage transient discharge window samples the incoming 16.67 msec sine wave 333 times...

How to ensure Voltage Stability

Mains power (as well as generator power) is not totally constant and fluctuates constantly. For most of the time, these fluctuations are within the acceptable range but from time to time, the voltage fluctuations are greater than the tolerated range and you get power surges...

Power Spike Prevention

A power spike or power surge can be caused by many different events including lightning strikes, power outages, tripped circuit breakers, short circuits or power transitions in other large equipment on the same power line. A generator cannot respond quick enough to a power spike...

Power Dip Prevention

Power dips are not full blown power cuts but a temporary (often less than 2 seconds) reduction in power. Only an Uninterruptible Power Supply will prevent your equipment from "seeing" the power dip and affecting your operations. Traditional battery UPS will quite happily cope with...

Brown out Prevention

Brown out prevention is more important than ever as they occur more and more across the UK Power networks. The only way to prevent a brownout (a temporary reduction in voltage) hurting your sensitive equipment is to have an Uninterruptible Power Supply, fully installed by...

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