http://iet.metastore.ingenta.com
1887

Successful turning on of MOSAs under very fast transients

Successful turning on of MOSAs under very fast transients

For access to this article, please select a purchase option:

Buy eFirst article PDF
£12.50
(plus tax if applicable)
Buy Knowledge Pack
10 articles for £75.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Generation, Transmission & Distribution — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

There is a general view that metal oxide surge arresters (MOSAs) are not in a position to offer an effective and consistent protection against very fast transient overvoltages (VFTOs). Quite predictably, it portrays MOSA in a poor light. The present sandwiched position of the arrester is mainly due to the combined effects of strong stray and block capacitances existing in an extra high voltage (EHV) network and the characteristic features of the incoming VFTOs. Contrary to this ‘popular view’, the theoretical performance assessment studies detailed here establish that a successful turnaround in the operation of MOSA under VFTOs is quite achievable. A detailed account of the electromagnetic transients programme (EMTP) and simulation studies performed is given; several oft-repeated, critical questions are also addressed. Essential measures to shore up the operation of MOSAs under VFTOs have also been brought to the fore. Finally, this study is a culmination of the ‘persistent efforts, brings a happy ending to a long pending issue’ and paves way for an effective and consistent protection to gas insulated substation (GIS) and its connected equipment against all kinds of life-threatening overvoltage surges that include VFTOs.

http://iet.metastore.ingenta.com/content/journals/10.1049/iet-gtd.2018.5256
Loading

Related content

content/journals/10.1049/iet-gtd.2018.5256
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address