Menu
Support
Technical library

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.

Filter by application type:
    Showing item(s) 1 - 10 of 115 in total
Methods of fault location in low voltage networks
There are multiple ways to find a cable fault in a low voltage network, but no one method works for all situations. It’s only by knowing the pros and cons of each method that you can determine the most effective one to use in any given scenario and pinpoint the fault in as little time as possible.
Published: 18 December 2017
Download PDF
Measuring operational low voltage networks
Low voltage cable faults are often unstable, so they can only be located when the cable is conducting live voltage. Testing under these conditions is extremely hazardous, so separations filters, as well as constructional safety methods, should be employed at all times.
Published: 18 December 2017
Download PDF
Low voltage network structures
Low voltage networks are a huge national investment, under daily pressure to give out power for hours at a time to a plethora of electrical appliances. It is therefore essential that their cables and transformers are tested often to prevent outage. To effectively test the components in low voltage networks, it’s important to know the different types of systems within them and how they are structured.
Published: 18 December 2017
Download PDF
Intro to fault location in low voltage networks
Fault occurrences in medium voltage networks are usually covered by redundancy in the system which, with appropriate switching, usually ensures a relatively uninterrupted continuation of the supply for the customer. A lengthy wait until the fault can be corrected only results in the increased risk of a second failure in this area, creating a customer outage that cannot be restored by switching.
Published: 18 December 2017
Download PDF
Examples of fault location
In branched low voltage networks, low-resistance faults, interruptions and large changes in impedance can only be located by comparing fault-free and defective cores.
Published: 18 December 2017
Download PDF
Pre-location based on impulse reflection methods
The use of T-branches in low voltage networks makes the evaluation of TDR traces considerably more difficult. Only through comparative measurements of fault-free and defective wires can possible results be achieved. The test pulses of the Teleflex are partially reflected at the T-joint with a negative algebraic sign, while test pulses that continue are simultaneously reduced in amplitude. The amount of reflection depends on the impedance in the main line and the continuing line.
Published: 18 December 2017
Download PDF
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?
Published: 11 December 2017
Download PDF
Working with fault monitors
A look at testing DC bus systems using the BGL/BGFT.
Published: 2 November 2017
Download PDF
Transformer oil testing for dielectric strength
Vessel preparation and elimination of the effects of moisture and contamination play a major role in successful oil testing. This application note points to the precautions that need to be taken.
Published: 2 November 2017
Download PDF
Transformer Winding Resistance Measurement
The measurement of winding resistance is useful in detecting a number of types of fault in a transformer. This application note discusses this in detail.
Published: 2 November 2017
Download PDF
  • 1
  • 2
  • 3
  • 4
  • 5
  • ...
  • >
  • Showing item(s) 1 - 10 of 115 in total