Pot type high voltage combination electric appliance with vacuum arc extinguishing chambers connected in series

Abstract

The invention discloses a pot type high voltage combination electric appliance with vacuum arc extinguishing chambers connected in series. The pot type high voltage combination electric appliance with the vacuum arc extinguishing chambers connected in series overcomes the problems that only one vacuum arc extinguishing chamber is installed on a pot type high voltage vacuum circuit breaker, a requirement for a high voltage grade can not be met, ventilation effects among compartments are not good, and safety is low in the prior art. The pot type high voltage combination electric appliance with the vacuum arc extinguishing chambers connected in series is characterized in that 2-5 vacuum arc extinguishing chambers connected in series are installed in a pot body, each vacuum arc extinguishing chamber is provided with an own vacuum arc extinguishing compartment, the 2-5 vacuum arc extinguishing chambers are connected in series so as to form compartments of the vacuum arc extinguishing chambers connected in series, a linear bearing installation through hole and an air hole are simultaneously formed in a connection shield flange in the middle of the compartments of the vacuum arc extinguishing chambers connected in series, a left rapid switch contactor is installed below the left pot body, a right rapid switch contactor is installed below the right pot body, a left rapid earth switch operation mechanism is installed at the lower end of the left pot body, and a right rapid earth switch operation mechanism is installed at the lower end of the right pot body. The pot type high voltage combination electric appliance with the vacuum arc extinguishing chambers connected in series has the advantages of reducing manufacture difficulty of the vacuum arc extinguishing chambers, and guaranteeing that a circuit interrupter is reliably grounded and ventilation effects among the compartments are good.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrical appliances, and in particular relates to a tank-type high-voltage combined electrical appliance with a series vacuum interrupter used for high-voltage systems and insulated with dry air or nitrogen. Background technique [0002] Sulfur hexafluoride is mostly used in the high-voltage vacuum circuit breakers of the existing tank-type high-voltage combined electrical appliances as the electrical insulation and circuit breaking medium, and the large-scale use of sulfur hexafluoride will pollute the environment. Based on the above reasons, the use of vacuum breaking technology to break circuits has been gradually implemented in the high-voltage field. For example, the applicant discloses a tank-type high-voltage vacuum circuit breaker in the patent No. ZL201110327141.0. It does not use six Sulfur fluoride gas is used as insulation, but the technical solution it adopts is to install a va...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, solve the problem that a single vacuum interrupter is not suitable for higher voltage levels due to the current manufacturing technical conditions, and multiple vacuum interrupters To solve the problem of poor ventilation effect between compartments and lack of fast knife mechanism, low safety, a tank-type high-voltage combined electrical appliance with series vacuum interrupter is provided

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