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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) 21 - 30 of 295 in total
MLR10
Software download files for MLR10
Published: 16 April 2019
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DFR: A New IEEE Guide for Field Test on Power and Distribution Transformers
The following article is a brief summary of the well-developed IEEE C.57.161-2018 “Guide for Dielectric Frequency Response Test”.  It thoroughly discusses the components and procedures of the guide, and the theories and history behind it. 
Published: 15 April 2019
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Configuring an Inrush Test
Current inrush testing is a common test that can be performed on transformers, motors and other equipment. This document shall describe how to configure the MPQ Analyzer to perform an inrush test. The MPQ Analyzer can record the voltage, current, active power, reactive power, apparent power, power factor and energy for every cycle for every active channel/phase, before and after the inrush. The MPQ Analyzer will also capture the inrush waveform for up to 10 seconds on each active channel.
Published: 14 April 2019
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Total Demand Distortion (TDD)
Total Harmonic Distortion (THD) is a common method used to measure the level of waveform distortion.Total Harmonic Distortion (THD) measurements are an effective method of evaluating voltage distortion. However THD can be misleading when evaluating current distortion. THD is the summation of the harmonics presented as a percentage of the fundamental. For voltage THD this will be the summation of the voltage harmonics compared to the fundamental voltage. In a non-faulted condition voltage will always be present so a proper reference always exists.
Published: 11 April 2019
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EasyProt
Software download files for EasyProt
Published: 4 April 2019
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SVERKER Win
SVERKER Win Software For SVERKER 750/780
Published: 2 April 2019
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ETK (Earth Test Kit) for Earth (Ground) Testing
When considering earth (ground) testing, people will often ask about what type of test leads should be used. This includes questions about the type of wire used, the resistance of the leads and the length of the leads, as well as concerns over safety. Fortunately, most of the answers to these questions are addressed by the design of the earth tester itself.
Published: 26 March 2019
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2019 Electrical Test Equipment Catalog
2019 Distributor Catalog
Published: 25 February 2019
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1-500Hz Narrow Band Dielectric Frequency Response
For approximately 25 years, dielectric frequency response (DFR) has been investigated and proven to provide an accurate method of determining both the moisture condition of paper + oil power transformers and bushings. Together with general insulation testing, DFR provides enhanced insulation condition of the transformer under test.
Published: 24 January 2019
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Diagnostic Test: 1-500 Hz Narrow Band Dielectric Frequency Response
For approximately 25 years, dielectric frequency response (DFR) has been investigated and proven to provide an accurate method of determining both the moisture condition of paper + oil power transformers and bushings. Together with general insulation testing, DFR provides enhanced insulation condition of the transformer under test.DFR testing method is now accepted internationally – as evidenced by its inclusion in the CIGRE TB445 as an accepted method for moisture determination. IEEE is presently in the process of completing a new guide for use of DFR in transformer moisture assessment for both factory and field testing, which should be completed and available by 2019. Instruments like the Megger IDAX300, which was the first commercially available unit to perform this test, is a valuable tool in this determination of moisture content.IDAX300 has included the ability to perform PF tests at frequencies from 1 to 500Hz which can be defined as a narrow frequency band dielectric frequency response test. We are now able to provide a shorter duration DFR test which gives us additional information into the overall insulation condition of the transformer or bushing.This paper illustrated a narrow band DFR test performed on a transformer located in Thailand – EGAT (power utility) and the result was recorded. It is proved that narrow band DFR test can provide a base line for any future testing comparison. We can use both a curve shape and/or a trend change for looking for issues. We no longer need to only rely on the line frequency PF(DF) to detect future issues.
Published: 8 January 2019
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