Environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus

Abstract

The invention relates to an environment friendly outdoor AC high voltage full-sealed combined electric apparatus which uses environmental friendly gases to replace the gas of SF6 for solving the problem of a poisonous low fluorin compound generated by the gas of SF6 used for arc extinguishing. A double-fracture type vacuum arc extinguishing chamber is adopted for arc extinguishing; a compound insulating bushing is arranged at the two sides of the arc extinguishing chamber; a three-power position isolating switch is arranged in the lower surface; the lower part of the bushing is sheathed with an electromagnetic mutual inductor or a photoelectric mutual inductor; high pure nitrogen is filled in the bushing and a tank body for internal isolation; the high pure nitrogen is adopted between the vacuum arc extinguishing chamber and the tank body for internal isolation; the fracture of each double-fracture type vacuum arc extinguishing chamber is provided with an equalizing capacitor; the three-power position isolating switch adopts the high pure nitrogen as the internal isolation, thus shortening the mounting time and improving the reliability and safety of the device. The environment pollution is avoided in particular as the gas of SF6 is not used.

Description

Technical field: [0001] The invention relates to the technical field of high-voltage electrical appliances, in particular it is an environment-friendly outdoor AC high-voltage fully enclosed combined electrical appliance. Background technique: [0002] High-voltage combined electrical appliances and high-voltage circuit breakers are commonly used electrical appliances in high-voltage electrical appliances. At present, the high-voltage combined electrical appliances and high-voltage circuit breakers used in domestic and foreign power grids are filled with SF6 gas of about 0.5Mpa. A strong greenhouse effect gas: Among the six greenhouse effect gases specified in the "Kyoto Protocol" passed in 1997, SF6 gas is the strongest greenhouse effect, and its global warming coefficient is 23900 times that of CO2. Its lifetime in the atmosphere is 3200 years, so limiting the use of SF6 gas is an inevitable trend. SF6 gas is mainly used in switchgear and power transmission and transform...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to replace SF6 gas with environmentally friendly insulating gas, select a vacuum interrupter to solve the problem of toxic and low-fluorine compounds produced by SF6 gas for arc extinguishing, and use environmentally friendly insulating gas to solve the internal insulation problem

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