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Technical documents for the MPQ1000

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Motor Analysis with the MPQ Analyser
Bearing failures are often blamed on poor lubrication. However, there are many other causes of bearing failures. Analysing the failure cause can lead to higher motor reliability.
Published: 8 September 2019
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Fast Transient
Very fast transients have limited energy due to their short duration. They are caused by arcing faults, such as bad brushes in motors, and are rapidly damped out by even a few meters of distribution wiring.
Published: 7 December 2018
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Rapid Voltage Change (RVC)
A rapid voltage change is a fast rise or fall of the RMS voltage. This can be caused by the switching on of a specific load or by a sudden change in source voltage. Sudden source voltage changes can occur in solar grids when the sun is obscured by clouds. Source voltage changes can also occur in wind farms when then wind speed decreases. Load switching can cause a rapid voltage change if the rating of the load is a significant fraction of the fault level of the supply voltage.
Published: 7 December 2018
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EN50160 Report
The EN50160 test is a European standard that specifies the main characteristics of the voltage at a network user's supply terminal. The standard applies to public low voltage, medium voltage and high voltage AC electricity networks under normal operating conditions. In the UK, the test is known as a BS50160 test.
Published: 6 November 2018
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A guide to power quality testing
A comprehensive guide to testing power quality.
Published: 7 March 2018
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