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Technische Bibliothek

In unserer Fachbibliothek bieten wir Ihnen eine große Auswahl an technischen Leitfäden und Abhandlungen zu unseren Produkten im Speziellen und im Allgemeinen - sowohl in englischer und deutscher Sprache. Mit dem praktischen Filter können Sie unseren Bestand durchsuchen oder Ihre Suche für bestimmte Anwendungsbereiche verfeinern. Bitte beachten Sie, dass Sie ein Konto erstellen müssen, um auf unsere Ressourcen zu greifen zu können.

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    Artikel anzeigen 1 - 10 von 104 insgesamt
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.
Veröffentlicht: 21 Mai 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.
Veröffentlicht: 8 März 2018
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Recommended battery maintenance practices
There are many different tests that can be performed on a battery string. The question often arises which one should be performed?
Veröffentlicht: 11 Dezember 2017
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BITE field calibration verification
Each Megger BITE product can measure internal cell impedance, inter-cell connection resistance and dc voltage of cells and jars. But only BITEs can be checked in the field for calibration validity to ensure quality of the data generated. This is because only Megger’s BITE instruments measure current simultaneously to potential.
Veröffentlicht: 7 September 2017
Working with fault monitors
A look at testing DC bus systems using the BGL/BGFT.
Veröffentlicht: 2 August 2017
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Testing appliances fitted with RCDs
Many appliances today are manufactured with an RCD attached to the supply lead, which can be awkward for the person testing the appliance. This paper looks at the methods of testing appliances fitted with RCDs.
Veröffentlicht: 2 August 2017
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Testing electric vehicle supply equipment
Most installations require an additional connection to ground at the charging point, so that there is still a form of protection under fault conditions. This connection would be made by an earth spike/electrode driven into the ground.
Veröffentlicht: 2 August 2017
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Testing for ground faults on storage batteries
Identifying faults in storage batteries can be problematic. Using a test signal frequency in the range 20 Hz to 30 Hz can minimise interruption from ‘phantom’ faults in batteries.
Veröffentlicht: 2 August 2017
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Testing on 110 V systems
110 V electrical systems are used in applications which call for extra safety, such as construction sites. This paper looks at how best to test these systems.
Veröffentlicht: 2 August 2017
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Testing three-phase systems
A three-phase system consists of three single phase AC supplies sharing its return path. This article looks at these systems and the ways to test them.
Veröffentlicht: 2 August 2017
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  • Artikel anzeigen 1 - 10 von 104 insgesamt