遮断器用油圧操作装置の動作時間安定に関する研究(常時高圧保持による動作安定方式の開発)

書誌事項

タイトル別名
  • A study on stabilization of operation time for hydraulic operating circuit breaker (Development of hydraulic stabilization system holding constant high pressure)

抄録

A hydraulic operation stabilizing system was developed for a hydraulic operating mechanism of a gas circuit breaker (GCB). Air bubbles and cavities, created in hydraulic fluid by the movement of the operating mechanism, have an effect on the movement of valves and pistons within the operating mechanism. The hydraulic operation stabilizing system consists of a hydraulic circuit and a latch system. The purpose of the hydraulic circuit is to limit the change in pressure during the initial operating time of the open and close operation, and to keep the pressure high after the operation has been completed. The latching system is used to control the movement of the main piston. The stabilizing system also detects the piston position at its open end, and the control valves through a simple hydraulic circuit and not by electrical means. An experimental hydraulic mechanism with an operation stabilizing system was built, and stable operations were confirmed.

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