Electrical High voltage surge protection
A surge arrester is a device to protect electrical equipment from overvoltage transients caused by external, lightning overvoltage, or internal, switching overvoltage events. This training class of device is used to protect equipment in electrical power systems.
Surge Arresters are the primary protection against atmospheric and switching overvoltage. They are generally connected in parallel with the equipment to be protected to divert the surge current. This training course is an overview of the high voltage surge arresters application, including functioning, construction, selection, installation location , and a short overview of the last generation of surge arresters before the introduction of the metal-oxide arrester, that is, the gapped silicon-carbide arrester, which is still being extensively used today.
This training course will provide information on how to reduce the risk of insulation failure of key electrical equipment, minimize outages, improve system reliability and reduce costs. The presentation covers both conventional valve-type surge arresters as well as the metal oxide devices.
By the end of the course the participants will be able to:
- Understand the difference between direct and indirect lightning
- Understand the origins of surges on
- Able to determine the location of surge diverters; ability to size and specify a surge arrester; understand the concept of insulation co-ordination and able to determine how the surge diverter impacts the insulation coordination of the entire electrical network.
Duration: 3 days
Facts about lightning