Mr. Qi Long Profile

Qi Long

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 6 February 2024 Paper

Long-term DC arc test design and result analysis of DC high speed switch for multi-terminal DC transmission systems

Changhong Zhang, Jinzhuan Lv, Mingyang Li, Bin Chen, Weiguo Li, Xu Yang, Boyi Fang, Qi Long, Mingchun Hou, Xiang Peng, Jinwei Chu

Proceedings Volume 12979, 129795O (2024) https://doi.org/10.1117/12.3015306

KEYWORDS: Ablation, Circuit switching, Nozzles, Prototyping, Switches, Capacitors, Boron nitride, Tolerancing, Resistance

Read Abstract +

High-Speed DC Switches (HSS) are critical equipment in multi-terminal DC transmission systems, with their ability to withstand DC arc ablation for extended periods being crucial. This paper presents an experimental study of HSS characteristics in ±800 kV hybrid multi-terminal HVDC projects. We constructed a constant current DC high-current test circuit for switching power supplies and conducted long-term ablation tests of HSS DC arcs under operating conditions and product characteristics of HSS. Additionally, we performed DC arc endurance tests on a 500 kV DC switch sample. The results demonstrate that ablation prototypes based on 1% boron nitride nozzle of CuW70 contact, 3% boron nitride nozzle of CuW80 contact, and 5% boron nitride nozzle of CuW85 contact can withstand long arc tolerance conditions of 4000A/5 times/400ms. In the DC arc test, the arc voltage of the two break surfaces of HSS stabilized at approximately 1 kV, and the weight of the static arc contact decreased by 10 g, while the length shortened by 1.7 mm. Finally, based on the results of the DC arc ablation test, we recommend using CuW70 for the static arc contact, CuW80 for the moving arc contact, and adding 3% boron content to the nozzle nitrogen. The research results provide valuable insights for structure optimization and material selection of HSS interrupters.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years