Analysis of influence of porosity on electric field and temperature in pre-insertion resistors

Yanyan Bao; Kang Liu; Yushuo Wu; Bodong Chen; Yongliang Yao; Ruoyu Wang

doi:10.1117/12.3055490

12 December 2024 Analysis of influence of porosity on electric field and temperature in pre-insertion resistors

Yanyan Bao, Kang Liu, Yushuo Wu, Bodong Chen, Yongliang Yao, Ruoyu Wang

Proceedings Volume 13439, Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024); 134390I (2024) https://doi.org/10.1117/12.3055490
Event: Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024), 2024, Xiamen, China

Abstract

In UHV and UHV transmission lines, tank circuit breakers need to be switched frequently, and the pre-insertion resistors is subject to the mixed impact of AC and DC at the same time, so the pre-insertion resistors is easy to be damaged, which affects the reliability of the power system. The pre-insertion resistors needs to withstand a lot of heat when acting, and the temperature distribution and heat dissipation capacity inside the pre-insertion resistors are particularly important. Based on this, this study first observed the internal morphology of the pre-insertion resistors through electron microscopy, established a Voronoi diagram model according to the internal morphology, built a simulation model of the pre-insertion resistors and calculated the temperature and electric field distribution of the pre-insertion resistors under different porosity. The results show that after injection of impulse current pulse with peak value of 2.03kA, the highest temperature inside the pre-insertion resistors at 366.5°C appears at the pore next to the carbon black conductive chain. Higher rate of porosity will make the temperature inside the pre-insertion resistors more evenly distributed, but will bring about an increase in the strength of the overall electric field inside.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yanyan Bao, Kang Liu, Yushuo Wu, Bodong Chen, Yongliang Yao, and Ruoyu Wang "Analysis of influence of porosity on electric field and temperature in pre-insertion resistors", Proc. SPIE 13439, Fourth International Conference on Testing Technology and Automation Engineering (TTAE 2024), 134390I (12 December 2024); https://doi.org/10.1117/12.3055490

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Resistors

Porosity

Electric fields

Electrical conductivity

Temperature distribution

Crystals

Scanning electron microscopy

Show All Keywords

Keywords/Phrases

Search In:

Publication Years