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Librería Técnica

La librería técnica de Megger ofrece acceso a una amplia gama de contenidos y recursos, tales como guías técnicas, notas aplicativas y mucho más. Cuando usted se registra y crea una Cuenta Megger, usted puede entre otras cosas, registrar su producto y tener acceso a una amplia gama de actualizaciones de software y descarga de catálogos y folletos específicos sobre su productos.

Para acceder a nuestra amplia gama de documentos técnicos y recursos, siga los siguientes enlaces.

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    Mostrando artículo/s 51 - 60 de 221 en total
Battery testing guide
Learn more about different kinds of batteries and the maintenance philosophies behind them. This guide also contains practical battery testing methods and test equipment recommendations.
Publicado: 12 julio 2018
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Cable TV premise wire testing
Discover ins and outs of telephony wiring testing, including premise wire trouble conditions, analogue line impairment testing and fault location. Make sure you are testing with the right equipment with the included product guide.
Publicado: 12 julio 2018
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Circuit breaker testing guide
This guide covers the role and function of circuit breakers in a power network, as well as the main types of breaker and prevailing CB technologies. Learn more about failure modes, maintenance strategies and testing methods.
Publicado: 12 julio 2018
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The Importance and Benefits of Portable Testing
A Portable Appliance Tester (PAT) is an instrument that is dedicated solely to the safety testing of portable electrical equipment in accordance with recognized national and local standards. Depending on locale, these standards may have been enacted into law. They may be requirements of specific industries or trade organizations, or just a good idea. In many cases, manufacturers of electrical consumer products who wish to export to foreign markets will be required, sometimes by national law, to assure the products have been safety tested. If testing is performed at time of manufacture, it will save money, aggravation and ill will that could result from having the products fail in the destination country. 
Publicado: 12 julio 2018
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Transformer testing techniques and standard development
Review of IEEE, CIGRE and IEC standards for power transformer testing including overview of various frequency response analysis (FRA) techniques.
Publicado: 12 julio 2018
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UHF PD-Diagnosis at high voltage cable terminations – International case studies
Different partial discharge defects show a different distribution in the frequency spectrum. These typical characteristics could be used in combination with the appropriate phase resolved partial discharge pattern for the analysis of partial discharge defects. The classification of the partial discharges allows an assessment of the defects in terms of its criticality.
Publicado: 12 julio 2018
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Power transformer demagnetisation
Abstract-Switching operations and direct current applied during routine testing procedures of static winding resistance measurement leave residual magnetization in the core and/or fully saturate the core of the transformer.
Publicado: 12 julio 2018
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Pre-locating faults with alternative method to arc reflection
While the share of installed cables without a jacket generally continues to decrease, the unjacketed cables that remain continue to age. As they do so, it is increasingly likely that a fault will develop on these cables. It can be particularly troublesome to locate faults on unjacketed cables as normal Time Domain Reflectometry, or radar, based fault location techniques often do not work, due to the corrosion of the neutral wires. While there is no guaranteed action that would result in locating the fault, this paper will outline some advanced methods, based on field experience, that can help when locating these types of faults. This paper was an article presented at NETA in 2017 and will discuss the Impulse Current method, which does not rely on the neutral wires being intact, in both a theoretical and practical light. 
Publicado: 12 julio 2018
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The characteristics of insulation resistance
During recent years a great deal of valuable research work has been done to increase our knowledge of the properties of insulating materials, yet notwithstanding the progress so made the natural laws governing insulation resistance are but little understood.
Publicado: 12 julio 2018
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Oil-paper insulation voltage dependency during frequency response analysis
Dielectric Frequency Response, DFR is the extension of power factor testing except that the measurement is performed from 1 kHz down to typically 1 mHz. It is a very useful tool for evaluating the moisture content in solid insulation of HV and EHV components such as power transformers, bushings, instrument transformers and PILC cables.
Publicado: 12 julio 2018
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  • Mostrando artículo/s 51 - 60 de 221 en total