Schlieren Analysis Of High Current Circuit Breaker Arcs Using High Speed Photography

A. D. Stokes

doi:10.1117/12.957679

27 July 1979 Schlieren Analysis Of High Current Circuit Breaker Arcs Using High Speed Photography

A. D. Stokes

Proceedings Volume 0189, 13th Intl Congress on High Speed Photography and Photonics; (1979) https://doi.org/10.1117/12.957679
Event: 13th International Congress on High Speed Photography and Photonics, 1978, Tokyo, Japan

Abstract

Schlieren photography has been used to probe the be-haviour of high current arcs in two types of a nozzle flow. For orifice nozzles the flow downstream from the throat ex-pands freely into the open air, and gross mixing between the hot arc core and the outer ambient is observed. For converging-diverging nozzles the schlieren records show a similar downstream behaviour, but upstream there is a clear cold flow surrounding the arc core. With high currents I ?. 2500 A a strong cloud of hot but non-luminous gas de-velops around the arc core and for I ?. 5000 A there is also a definite reverse flow of ablated nozzle products, which prevents effective arc interruption.

Citation Download Citation

A. D. Stokes "Schlieren Analysis Of High Current Circuit Breaker Arcs Using High Speed Photography", Proc. SPIE 0189, 13th Intl Congress on High Speed Photography and Photonics, (27 July 1979); https://doi.org/10.1117/12.957679

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