The invention discloses a pressure on-line
monitoring system for a 750kV high-
voltage insulating sleeve. The pressure on-line
monitoring system comprises an oil drain hole which is formed in the bottom side face of the high-
voltage insulating sleeve and communicated with the inside of the high-
voltage insulating sleeve, a tee joint is mounted at the oil drain hole, one inlet of the tee joint is connected with the oil drain hole, a pressure
transmitter and a down leading sampling
pipe are mounted at two outlets of the tee joint, the down leading sampling
pipe extends downwards, a sampling valveis mounted at the
tail end of the down leading sampling
pipe, a switching valve for switching the inlet and the two outlets to be connected is mounted at the tee joint, signals of the pressure
transmitter are in communication with a local collector through a communication module, the local collector is in communication with a background computer through a
communication device and comprises a controller, a display, an alarm and a
wireless communication module, the
wireless communication module is in communication with the background computer, and the controller is connected with the display, the alarm and the
wireless communication module.