A Triangular Off-Excitation Tap-Changer
A tap changer, delta technology, applied in the field of delta off-excitation tap changer, can solve the problems of not fully satisfying user needs, inconvenient to organize production, increase flow costs, etc., to facilitate automated production and processing, reduce procurement costs, and reduce production. The effect of current costs
Active Publication Date: 2019-06-11
武汉长虹恒通高压设备有限公司
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AI Technical Summary
Problems solved by technology
Increase the flow cost of production and bring inconvenience to the organization of production
[0005] The connection between the fixed contact of the disc switch and the tap lead of the transformer is only the terminal bolt connection method, and there is no copper tube cold pressure connection method, which cannot fully meet the needs of users
Method used
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[0045] The present invention is further described in conjunction with the accompanying drawings and embodiments.
[0046] Such as Figure 1a , Figure 1b , Figure 1c , Figure 2a , Figure 2b , Figure 2c , Figure 3a , Figure 3b , Figure 3c , Figure 3d , Figure 4a , Figure 4b , Figure 4c , Figure 4d , Figure 5a , Figure 5b , Figure 6a , Figure 6bAs shown, a triangular non-excitation tap changer, including a triangular switch base 1 (1'), a transmission mechanism, a three-phase moving contact 13, a three-phase fixed contact 14 (14'), a handle 7, a switch cover 8, It is characterized in that: the transmission mechanism is composed of a transmission gear 3 and three sliding racks 12, and the three-phase moving contact 13 and the three-phase fixed contact 14 (14') are respectively arranged on the triangular switch base 1 (1') and the three sliding racks 12 in the transmission mechanism are also arranged in a triangle in the triangular switch seat 1 (1...
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The invention relates to a triangular off-circuit tap-changer. The triangular off-circuit tap-changer comprises a triangular switch base, a drive mechanism, a three-phase moving contact and a three-phase fixed contact. The triangular off-circuit tap-changer is characterized in that the drive mechanism is composed of a drive gear and three sliding racks. The three-phase moving contact and the three-phase fixed contact are arranged on three edges of the triangular switch base respectively, and the three sliding racks in the drive mechanism are also in triangle arranged in the triangular switch base; the three-phase moving contact is arranged in the middle of the three sliding racks respectively to be in contact with contact positions of the three-phase fixed contact in a correspondingly matched mode; the three sliding racks are driven by same drive gear to move along a respective straight-line track; the connecting position of the moving contact and the fixed contact is changed. The main body component of the switch base is formed by adopting an injection material in an injected mode, and automatic production and processing are facilitated. Productivity is greatly improved, and labor intensity of workers and product processing cost are reduced. The triangular off-circuit tap-changer completely overcomes the defects of an existing disc switch, is a transformer tap-changer with high cost performance and worth popularizing.
Description
Technical field: [0001] The invention relates to a triangular off-excitation tap changer, which is applied to an oil-immersed distribution transformer. Background technique: [0002] In my country's distribution transformer industry, there are two forms of coil distribution for three-phase power transformers: one is planar distribution, that is, the three-phase coils of A, B, and C are in the same plane; the other is three-dimensional distribution, that is, A , B, and C three-phase coils are respectively distributed in three planes forming an angle of 60 degrees to each other, and the house view is approximately an equilateral triangle. This type of transformer is called a three-dimensional coil core transformer, commonly known as a triangular transformer. Delta transformers occupy a certain proportion in the market. At present, the off-excitation tap changer used in the delta transformer is a disc switch. The disc switch has been using the traditional structure and tradit...
Claims
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IPC IPC(8): H01H9/00H01H9/02H01H1/58
CPCH01H1/58H01H9/0044H01H9/02
Inventor 何幼林
Owner 武汉长虹恒通高压设备有限公司