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Technical documents for the MPQ2000

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    Showing item(s) 1 - 10 of 13 in total
MPQ2000 Common Connections
An application note locoking at the common connections of the MPQ2000.
Published: 10 April 2019
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MPQ2000 Monitoring a TT grounded system
Measuring the voltage between the ground and neutral provides an indication of the integrity of the ground connection. The poorer the connection (higher impedance), the higher the voltage between the neutral and ground conductors will be. During a fault, this level could rise over 50 V and become a serious hazard.
Published: 10 April 2019
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Data Analysis
The Megger PQ PC software has the ability to perform automated data analysis and create data analysis reports based on canned or custom templates.
Published: 10 April 2019
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CBEMA Curve
The MPQ can capture up to 1000 events. This number of events can be time consuming to review and analyze.The CBEMA / ITIC curve allows for quick analysis of dip (sags), swells and sub-cycle (transient) events.
Published: 10 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: 7 December 2018
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Merging MPQ Data Files
Adding, removing or changing a piece of equipment in a facility can have significant impacts on the power quality and energy requirements. Introduced power quality phenomenon can cause equipment to trip off line. This can represent significant losses in revenue. Added equipment can create high peak loads or increased reactive currents that can lead to penalties. In order to determine the impact of these changes a power quality and demand study should be performed prior to the change and after the change.
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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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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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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Transferring data from the MPQ to the PC
Data can be transferred from the MPQ to your PC in 3 ways – direct download, via SD card, and via USB stick. All 3 methods are discussed in this article.
Published: 5 January 2018
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