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Librairie technique Megger

Librairie technique Megger

La librairie technique de Megger donne accès à une diversité de ressources telles que des guides techniques, des guides d'applications et bien d'autres. En créant un compte Megger, vous pouvez enregistrer vos produits, accéder à de nombreux documents et à des mises à niveau de logiciels pour vos produits.

 

Pour accéder à notre gamme de documents et de ressources techniques, cliquez sur les liens ci-dessous.

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    Affichage d'item(s) 51 - 60 de 409 au total
Enabling Additional Channels
When creating a setup file a particular power wiring connection needs to be selected. This instructs the instrument on how to calculate the power and energy. When the power wiring connection is create the required input channels are automatically enabled.In some cases the operator may wish to enable additional channels for other measurements. This will not affect the power or energy measurements.
Publié : 29 avril 2020
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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.
Publié : 29 avril 2020
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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.
Publié : 29 avril 2020
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Transformer turns ratio test: some unknown facts
Transformer Turns Ratio (TTR) is one of the most common test used to assess the condition of the transformer’s windings and core.  It is performed as a part of acceptance and maintenance test procedure to determine any problems due to poor design, assembly, handling, overloading, fault conditions or poor maintenance. TTR results are compared against the nameplate ratings to determine any possible insulation deterioration, shorted turns, core heating or any other winding or core abnormalities.TTR is a simple and easy test to perform that is often taken for granted without fully understanding the principle and basis of the test. In cases when measurements are not within expected limits, it becomes a challenging task to determine the root cause and resolve the problem. This paper will focus on some of the unknown facts associated with the TTR test. The paper covers in detail the effect of applied test voltage, comparative analysis of step up vs step down excitation, different vector configurations, differences between nameplate ratio, voltage ratio and turns ratio, sources of ratio and phase angle errors, comparison of per phase testing vs true three phase testing, extreme tap ratios being out of tolerance for On Load Tap Changers (OLTC), and TTR test correlation with other electrical tests. The paper also provides field test results and case examples to explain the above-mentioned unknown facts.
Publié : 28 avril 2020
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One touch OLTC with the TTRU3
Completing turns ratio tests on all transformer taps can be a cumbersome process. With One Touch OLTC from the TTRU3, anyone can configure and test all taps within a few short minutes.
Publié : 22 avril 2020
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Remote Operation of the MPQ1000 via Ethernet
We recieve feedback from many of our customers who use power quality (PQ) meters - including utilities, industrial and service providers. They have told us that one of the most important features of a PQ meter is the ability to control the unit and and view data remotely. Having to retrieve a unit from the field in order to download and then analyze the recorded data creates added expenses in time and resources.
Publié : 7 avril 2020
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S1-1068 Performance at Power Grid Corporation of India in 765 kV charged substation
The Power Grid Corporation of India Limited (PGCIL) is an Indian state-owned company headquartered in Gurugram, North India and engaged mainly in Transmission of Power & transmits about 50% of the total power generated in India on its transmission network. The company owns and operates about 1,61,790 circuit kms of transmission lines at 800/765 kV, 400 kV, 220 kV & 132 kV EHVAC & +500 kV HVDC levels and 248 sub-stations. Also, it has the transformation capacity of about 3,96,825 MVA as on 30th November 2019.
Publié : 2 avril 2020
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CABA Local – Internal software for TM1700 and TM1800
PC software for Circuit breaker analysis 
Publié : 27 mars 2020
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TM1700 firmware
This firmware is applicable for all TM1700 models
Publié : 26 mars 2020
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CABA Win - PC software
PC software for Circuit breaker analysis 
Publié : 26 mars 2020
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  • Affichage d'item(s) 51 - 60 de 409 au total