Fluke - The Valencia algorithm: Calculating costs of energy loss due to poor power quality

Our thanks to Fluke for allowing us to reprint the following article.

Thanks to a breakthrough at Polytechnic University in Valencia, Spain, power quality analyzers are now able to calculate the cost of energy loss due to inefficient electrical systems.

Just what is power quality?

Power quality is generally defined as the voltage that will enable continuous, safe operation of equipment connected to a power source. It's usually expressed as a tolerance around the normal operating voltage level. Voltage can dip or sag below the normal level or, conversely, it can also swell, spike or surge. The former can cause equipment to reset or momentarily power down; the latter can damage equipment, blow fuses or cause breakers to trip.

Generator. Junction box. Transmission lines. There are a number of places problems may occur in an electrical circuit. However, 80% of all power quality issues originate within a user's own facility. Problems may be due to power quality issues such as unbalance or harmonics, poor electrical installation, deteriorating wiring or improper grounding. Starting large loads in a facility can disrupt adjacent equipment as the high current drawn causes supply voltage to slip...

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