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

Abstract

The invention discloses an outdoor pot type high voltage combination electric appliance with vacuum arc extinguishing chambers connected in series. The outdoor 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 circuit breaker of an existing high voltage combination electric appliance, a requirement for a high voltage grade can not be met, ventilation effects among compartments are not good, and safety is low. The outdoor 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, the upper ends of a left connection bus and a right connection bus are respectively connected with a left rapid switch contactor and a right rapid switch contactor, rapid switch ground connection contactors are installed on wire outgoing sleeves corresponding to the rapid switch contactors, two rapid earth switch operation mechanisms are respectively installed on the left side and the right side of the lower end of the pot body, and a left rapid earth switch operation link mechanism and a right rapid earth switch operation link mechanism drive the left rapid switch contactor and the right rapid switch contactor to rotate so as to achieve opening and closing of rapid earth switches. The outdoor 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, being good in ventilation effect among the compartments and capable of meeting the requirement for the high voltage grade, guaranteeing that the circuit breaker is reliably grounded, forming an obvious fracture between each connection bus and each rapid switch contactor while being grounded, and improving safety performance.

Description

technical field [0001] The invention belongs to the technical field of high-voltage electrical appliances, and in particular relates to an outdoor tank-type high-voltage combined electrical appliance with a series vacuum interrupter which is insulated with dry air or nitrogen for high-voltage systems. Background technique [0002] Sulfur hexafluoride is mostly used in the high-voltage circuit breakers of existing 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 vacuum interru...

AI Technical Summary

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

Images