Arc Plasma Interruption Process Modeling in Electromagnetic Relays Based on JMAG and ANSYS Fluent

Shuichi Itoda
R&D Section, Engineering Dept., Business Management Div. HQ., Electronic and Mechanical Components Company, OMRON Corporation


Opening operation of electromagnetic relays generates very high-temperature arc plasma. Though periodic zero current of AC can interrupt arc plasma, we need compulsive increase of electric resistance to interrupt DC arc. As an approach to interrupt DC arc, magnetic blow-out, that electromagnetic force acting on DC arc sharply raises the arc length and resistance, is commonly used.
In this speech, I’m going to introduce arc interruption simulation technology based on magnetohydrodynamic model by JMAG and ANSYS Fluent, examples that I have simulated arc interruption experiment, and improvement result of calculatiton processing time.

To read Proceedings, please sign-in.

Protected content here, for members only.
You need to sign in as a Regular JMAG Software User (paid user) or JMAG WEB MEMBER (free membership).

By registering as a JMAG WEB MEMBER, you can browse technical materials and other member-only contents for free.
If you are not registered, click the “Create an Account” button.

Create an Account Sign in 

Remember me
Sign In
Create an account (Free) About authentication ID for JMAG website

Search Filter

  • All Categories

Proceedings Archives