전체검색 결과
MOTOR 운전시 INVERTER의 주파수를 변경하여 전원의 양을 조절함으로서 MOTOR의 속도를 조절하는 장치 종류에는 고압,저압 INVERTER 장비가 있음
고압에 주로 사용하며 INVERTER 제어반과 같은 개념 유도전동기는 기동시에 전 부하의 400% TORQUE와 600~700%의 기동전류가 발생하게 된다. 400%의 기동 Torque는 전동기와 부착되어 있는 기어나 벨트 베어링 등에 마모나 파손의 원인이 되어 유지 보수 비용을 증가시키게 된다. 600% 이상의 높은 기동전류는 Magnetic Contactor의 주 접점에 Arc(아크)를 발생시켜 접점 손상에 의한 결상 등의 원인이 되고 전압 강하를 발생시켜 시설 용량을 증대시키는 원인이 된다. 따라서 무접점 SOFT STAR…
4배수 MOTOR CONTROL PANEL
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