METHOD FOR EVACUATION AND FILLING WITH PETROLEUM ELECTROINSULATING OILS OF HIGH-VOLTAGE UNITS Russian patent published in 2015 - IPC H01G13/04 

FIELD: electricity.

SUBSTANCE: invention relates to high-voltage electrical equipment and can be used for the filling and impregnation of high-voltage units having in their composition the liquid dielectric. The technical result in the offered method for evacuation and filling with petroleum electroinsulating oils of high-voltage units is achieved by that the high-voltage unit is evacuated, filled with the petroleum electroinsulating oils with simultaneous evacuation and degassing of dielectric in a receiver, with the subsequent filling of the high-voltage unit with the degassed oil. The unit filling is monitored by means of the receiver made from transparent material.

EFFECT: improvement of quality of the process of filling of high-voltage units petroleum with electroinsulating oils and, as a result, improvement of reliability of operation of high-voltage units, as far as evacuation of liquid dielectric is conducted in the large receiver and there is no intermediate pressure testing, that minimises the duration of the process of filling of high-voltage units.

1 dwg