| Title |
Development of 460「V」/225「A」/50「kA」 Contact System in Current Limiting MCCB using an estimation and analysis method for the interrupting capability |
| Authors |
Young-Kil Choi ; Chan-Kyo Park |
| Keywords |
MCCB ; Molded case circuit breaker ; Contact system |
| Abstract |
Low voltage circuit breakers which interrupt rapidly and raise the reliability of power supply are widely used in power distribution systems. In the paper, it has been investigated how much interrupting capability is improved by correcting the shape of the contact system in molded case circuit breaker(below MCCB), especially contacts and arc runner. Prior to the interrupting testing, it is necessary for the optimum design to analyze electromagnetic forces on the contact system generated by current and flux density. This paper presents both our computational analysis and test results on contact system in MCCB |