Unit Process Scheduling System Development and Calculation and Control Method of Planned Leadtime Using Multiple Linear Regression under Make to Order Manufacturing System in Transformer Winding Process

Ultra-high voltage transformer industry has characteristic of small quantity batch production system by other order processing unlike general mass production systems. In this industry, observance of time deadline is very important in market competitive power security and company continued existence. The transformer winding is a process that rolls a coil is coated with an electric insulation material in order to generate the required voltage using the voltage fluctuation. The winding process is very important production process in the extra-high voltage transformer manufacturing industry because winding process is core process that occupy weight about half of whole process and is process that decide current ratio of transformer. This paper proposes a statistical calculation and control method of planned leadtime on the basis of real data and informations for the A company in transformer winding process. Moreover, we develop unit process scheduling system.

변압기 권선공정에서의 수주 제작품의 단위공정 일정관리 시스템 개발과 다중회귀분석을 이용한 계획 리드타임 산출 및 관리 방안