Optional phase-operated switchgear
A technology of operating devices and switching devices, applied in electric switches, high-voltage/high-current switches, high-voltage air circuit breakers, etc., can solve problems such as increasing material costs, increasing the overall size of switchgear, and increasing the probability of air leakage
Active Publication Date: 2020-01-10
XIAMEN HUADIAN SWITCHGEAR
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Problems solved by technology
In this way, more structural parts have to be used, especially the use of three metal shells, there must be more gas sealing surfaces, which increases the probability of air leakage; the use of three shells will also make the switchgear The increase in the overall size of the material increases the material cost, and in some occasions the increase in size is unacceptable
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[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] Such as figure 1 and figure 2 as shown, figure 1 A side perspective view of the finished product of this embodiment is shown; figure 2 A front perspective view of the finished product of this example is shown. The present invention is a switch device with optional phase operation, including a metal shell 1, an upper mounting plate 5 and a lower mounting plate 8, the metal shell 1 has an upper opening and a lower opening, and the upper opening of the metal shell 1 is fixed. The upper mounting plate 5, the lower opening of the metal shell 1 is fixed with the lower mounting plate 8, the metal shell 1, the upper mounting plate 5 and the lower mounting plate 8 are composed of a closed chamber 6, which is filled with Insulating gas, insulat...
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The invention discloses a switching device capable of phase selection operation, and the switching device comprises a metal housing, three-phase circuit breakers, three independent operating apparatuses, and three independent transmission mechanisms. The metal housing is provided with a sealed cavity. The three-phase circuit breakers are disposed in the metal housing, and each circuit breaker is provided with a moving contact. The three independent operating apparatuses are disposed outside the metal housing. The three independent transmission mechanisms are disposed outside the metal housing, and the three independent operating apparatuses and the three independent transmission mechanisms are respectively connected with the three-phase circuit breakers in a corresponding manner. Each operating apparatus is enabled to independently drive the moving contact of the corresponding circuit breaker through the corresponding transmission mechanism. Moreover, the three independent operating apparatuses can respectively drive the moving contacts of the three-phase circuit breakers to operate synchronously through the three independent transmission mechanisms. The invention has the following beneficial effects that the switching device has the performance of asynchronous operation between predetermined poles, cannot enlarge the volume of the metal housing, and is small in size.
Description
technical field [0001] The invention relates to the field of three-phase switchgear, in particular to a control device for a movable contact of a circuit breaker of a three-phase switch component. Background technique [0002] The 110kV high-voltage switchgear currently on the market mainly installs the three-pole circuit breaker arc extinguishing chamber in a metal shell filled with insulating gas, and an operating mechanism drives the three-pole circuit breaker arc extinguishing chamber to move simultaneously. But in some occasions, it is necessary to operate the arc extinguishing chamber of each pole circuit breaker by an independent operating mechanism, so that the switchgear has the performance of predetermined phase operation between poles. At present, independent operating mechanisms independently drive the movement of the three-pole circuit breaker arc extinguishing chamber. In some voltage fields such as 220kV and above, it is also a public technology. The inventio...
Claims
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IPC IPC(8): H01H33/53H01H33/02
CPCH01H33/022H01H33/53
Inventor 梁景璇郑闽生阮国章林坚
Owner XIAMEN HUADIAN SWITCHGEAR