Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference (한국조명전기설비학회:학술대회논문집)
- 2007.05a
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- Pages.433-436
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- 2007
The short-circuit calculation and circuit breaker selection as IEC standard
IEC규격에 의한 고장전류해석 및 차단기용량선정
Abstract
This paper analyzes how to calculate the three phase short-circuit currents for ac electrical system and select the high & low voltage circuit breaker based on IEC60609, IEC60056 and IEC60947-2 standards. We proposed the multiplying factor considering system time constant and circuit breaker rating to select circuit breaker accurately.
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