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Technical library

The Megger technical library provides access to a range of additional content and resources such as technical guides, application notes and more. Use the filters to browse specific content (e.g. application notes) or refine your search to a particular electrical application area. 

 

If you would like to see the content we have available on a particular subject or need to locate some software, simply enter a search below. Please note, you will need to create an account to access some resources.

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    Showing item(s) 1 - 10 of 129 in total
Demagnetization of power transformers
In the marketplace for electrical transformer test equipment, there is a lot of talk about demagnetization of transformers. It is a recommended practice that probably will make it into the international guidelines and standards for transformer testing in the future.
Published: 28 September 2018
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Testing ROCOF protection
Detailed guidance on ROCOF testing with the Sverker 900, including information about connections and instrument settings.
Published: 27 August 2018
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Demand Power and Energy (Part 1)
The term Demand pertains to both power and energy parameters. When referring to AC Power there are 3 different parameters to access, active power, reactive power and apparent power.
Published: 31 July 2018
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Solar Energy - Part 3 of 3: Analysing Solar PQ Data
This application note looks at what you should check when analysing the power quality data from a solar panel application.
Published: 3 July 2018
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Solar Energy - Part 2 of 3: Programming a PQ Analyser
When examining potential power quality issues associated with solar panels, your power quality analyser should be programmed to examine a variety of different parameters outlined in this application note.
Published: 3 July 2018
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Solar Energy - Part 1 of 3: An overview of PQ Issues
Renewable energy sources can include solar photovoltaic (PV), solar hot water, geothermal, wind and biomass. Of all of them, solar prices are dropping the quickest, so we are seeing this industry grow the quickest. This is most notably true in the residential and small commercial markets.
Published: 3 July 2018
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Testing wind turbine lightning protection
The most significant danger facing wind turbines is damage from lightning strikes. Lightning faults cause more loss in wind turbine availability and production than the average fault. The number of failures due to lightning strikes is known to increase with tower height and a growing number of studies speculate that rotating wind turbines may be more susceptible to lightning strikes than stationary structures.
Published: 12 June 2018
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Determining harmonic direction
 Harmonics are caused by non-linear loads. Linear loads draw a linear current that follows the changing voltage of the AC waveform. Non-linear loads draw current pulses periodically, which creates distorted waveforms.
Published: 21 May 2018
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Testing appliances with long power cords
When testing appliances with long power cords, usually longer than 5m, it can be necessary to allow for the additional cord resistance. Most modern Portable Appliance Testers have pre programmed pass limits. These are based on the limits specified in the Code of Practise for In-Service Inspection and Testing of Electrical Equipment. However, the true pass limit depends on the appliance to be tested. The pre-programmed limit may not be suitable for all appliances. Moving the goal posts can be justified in particular circumstances when a test initially fails.
Published: 8 March 2018
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Renaming test files on the MPQ units
An application note explaining how to rename test files on the MPQ test units. This feature can be used to keep track of recordings if the user has to record on multiple locations before downloading the data to a computer.
Published: 5 January 2018
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  • Showing item(s) 1 - 10 of 129 in total