CN218471835U - High-voltage vacuum type combined electrical apparatus - Google Patents

Abstract

The utility model belongs to electrical equipment, in particular to high pressure vacuum type combined electrical apparatus, top right side at the support is equipped with permanent magnetism operating device, the fixed vacuum circuit breaker casing that is equipped with in top of support, the middle part is equipped with to touch and indicates the assembly shell in the vacuum circuit breaker casing, it is equipped with the vacuum bubble to connect in the top of pointing the assembly shell, pass through connecting piece fixed connection conductive contact casing in the upper end of vacuum circuit breaker casing, the guide bar top is through last conducting seat connection transmission case, go up conducting seat fixed connection below the transmission case, three station operating device are connected to the transmission case top. The high-voltage vacuum type combined electrical apparatus is filled with low-voltage mixed gas as an insulating medium, is safe, reliable and environment-friendly, and the vacuum bubble is used as an arc extinguishing core, so that the mechanical service life of the electrical apparatus is long.

Description

High-voltage vacuum type combined electrical apparatus

Technical Field

The utility model belongs to electrical equipment, in particular to high-pressure vacuum type combined electrical apparatus.

Background

Currently, SF is mostly adopted in outdoor high-voltage combined electrical appliances of each power plant and power station in 40.5KV power grid ₆ Outdoor three-phase alternating current power transmission and transformation equipment with gas as an insulating medium. The product structure is made of SF ₆ Circuit breaker isolating switch, grounding switch, current transformer, voltage transformer, lightning arrester, bus, incoming and outgoing line sleeve or cable terminal, etc., and SF ₆ The circuit breaker is expensive, and traditional mechanical life is 10000 times, and its change maintenance cost is high, influences the economic benefits of enterprise. In addition SF ₆ The gas can be decomposed to have corrosive gas at the high temperature of discharging, influences the environment, and operating device transmission is complicated, and the easy wearing and corrosion of key part takes place the fault probability height.

Disclosure of Invention

An object of the utility model is to overcome above-mentioned technique not enough, provide a simple structure, small uses safe and reliable's high-pressure vacuum type composite apparatus.

The utility model provides a technical scheme that technical problem adopted is, high pressure vacuum type combined electrical apparatus includes the support, conductive contact casing, the vacuum circuit breaker casing, cable integral type sleeve pipe one, cable integral type sleeve pipe two, three stations keep apart/earthing switch, the connecting piece, its characteristics are, top right side at the support is equipped with permanent magnetism operating device, the fixed vacuum circuit breaker casing that is equipped with in top of support, middle part is equipped with touches finger assembly shell in the vacuum circuit breaker casing, it touches the finger to be equipped with the spring in touching finger assembly shell, connect bushing pipe connecting piece through the bolt on touching finger assembly shell's the periphery, fixed connection cable integral type sleeve pipe two on bushing pipe connecting piece's left end face, bolt fixed connection insulating pull rod cover for the lower extreme touching the finger, insulating pull rod is equipped with in insulating pull rod cover, the upper end connection spring of insulating pull rod touches the lower extreme of finger, transmission is connected to the lower extreme connection drive unit of insulating pull rod, be equipped with the permanent magnetism operating device connection of support inboard, connect vacuum bubble in the top of touching finger assembly shell, pass through connecting device fixed connection conductive contact box top of connecting device fixed connection of connecting device, the cable connecting device is equipped with the top of contact box for the fixed connection of contact, the contact box.

The beneficial effects of the utility model are that, fill in the high-pressure vacuum type combined electrical apparatus with low pressure mist as insulating medium, safe and reliable, environmental protection, vacuum bubble are as the arc extinguishing core, make the mechanical longevity of electrical apparatus long, driving medium such as no connecting rod cam reduces the part loss, holistic small, and the action is nimble, guarantees that periodicity, the reliability adaptation adverse circumstances of three case operations are used down.

Drawings

The following description is made in detail by way of example with reference to the accompanying drawings.

Fig. 1 is a front view of a high-pressure vacuum type composite apparatus.

Fig. 2 is a right side view of fig. 1.

Fig. 3 is an enlarged view at i of fig. 1.

Fig. 4 is an enlarged view of fig. 1 at ii.

In the figure, 1-three-position operating mechanism; 2-upper conductive seat; 3-a guide rod; 4-a contact seat; 5-a lower conductive seat; 6-vacuum bubble; 7-contact finger assembly housing; 7-1-spring contact fingers; 7-2-casing connection; 8-an insulating pull rod; 9-a transmission device; 10-a scaffold; 11-a transmission case; 12-cable integrated bushing one; 13-a conductive contact housing; 14-insulating pull rod cover; 15-a connector; 16-a permanent magnet operating mechanism; 17-vacuum circuit breaker housing; 18-three-position isolating/grounding switch; 19-cable integrated sleeve II; 20-contact.

Detailed Description

In the embodiment, referring to fig. 1-4, a high-voltage vacuum type combined electrical apparatus is provided with a permanent magnet operating mechanism 16 on the right side above a support 10, and a vacuum circuit breaker housing 17 is fixedly arranged above the permanent magnet operating mechanism 16. A contact finger assembly shell 7 is arranged in the middle of the vacuum circuit breaker shell 17, a spring contact finger 7-1 is arranged in the contact finger assembly shell 7, and the periphery of the contact finger assembly shell 7 is connected with a sleeve connecting piece 7-2 through a bolt. And a second cable integrated sleeve 19 is fixedly connected to the left end face of the sleeve connecting piece 7-2. The lower end of the contact finger assembly shell 7 is fixedly connected with an insulating pull rod cover 14 through bolts, an insulating pull rod 8 is arranged in the insulating pull rod cover 14, the upper end of the insulating pull rod 8 is connected with the lower end of the spring contact finger 7-1, the lower end of the insulating pull rod 8 is connected with a transmission device 9, and the transmission device 9 is arranged on a support 10 and is connected with a permanent magnet operating mechanism 16 on the inner side of the support 10 through a lead. The permanent magnet operating mechanism 16 is operated by an electromagnet, a permanent magnet lock catch, capacitor energy storage and electronic device control, and the required operation of the circuit breaker is completed. In vacuum circuit breakers, SF with low gas pressure is used for the individual space switches ₆ And N ₂ The mixed gas is used as an insulating medium. A vacuum bulb 6 is connected above the finger fitting housing 7, and a conductive contact housing 13 is fixedly connected above the vacuum interrupter housing 17 by a connecting piece 15. A lower conductive seat 5 is arranged below the conductive contact shell 13, a contact seat 4 is arranged above the lower conductive seat 5, a contact 20 is arranged in the contact seat 4, and the periphery of the contact seat 4 is fixed by boltsAnd a first fixed connection cable integrated sleeve 12. The center in the contact 20 is provided with a guide rod 3, the upper part of the guide rod 3 is connected with a transmission box 11 through an upper conductive seat 2, the upper conductive seat 2 is fixedly connected to the lower part of the transmission box 11, and the transmission box 11 is connected with a three-station operating mechanism 1 above the transmission box 11 through a transmission gear in a transmission way. A three-position isolating/grounding switch 18 is arranged in a conductive contact shell 13, the three-position isolating/grounding switch 18 adopts a movable contact plug-in type, and combines grounding and isolating two switch functional elements together, one end of the three-position isolating/grounding switch 18 is connected with a first cable integrated sleeve 12, the lower end of the three-position isolating/grounding switch 18 is connected above a vacuum circuit breaker, a transmission case 11 is connected above the three-position isolating/grounding switch 18, and the three-position isolating/grounding switch is connected with a three-position operating mechanism 1 through the transmission case 11.

The working principle of the high-voltage vacuum type combined electrical apparatus is as follows: the three-position isolating/grounding switch 18 transmits energy and motion with the transmission case 11 above through the upper conductive seat 2, and the three-position operating mechanism 1 above the transmission case 11 provides required torque to control the on/off of the three-position isolating/grounding switch 18. The main component of the vacuum circuit breaker is a vacuum bubble 6, when the vacuum switch breaks current, two contacts of the vacuum bubble 6 are separated, an electric arc is generated between the two contacts, the vacuum electric arc conducts electricity for metal steam evaporated from contact electrodes, and charged particles and the metal steam have high diffusion speed. And the electric arc is extinguished until the current naturally crosses zero, so that the circuit is switched on and off. The permanent magnet operating mechanism 16 generates a holding force by a permanent magnet to hold the vacuum short-circuiting device at the opening/closing position.

Claims (1)

1. A high-voltage vacuum type combined electrical apparatus comprises a support (10), a conductive contact casing (13), a vacuum circuit breaker casing (17), a cable integrated casing I (12), a cable integrated casing II (19), a three-station isolation/grounding switch (18) and a connecting piece (15), and is characterized in that a permanent magnet operating mechanism (16) is arranged on the right side above the support (10), the vacuum circuit breaker casing (17) is fixedly arranged above the support (10), a contact finger assembly shell (7) is arranged in the middle of the vacuum circuit breaker casing (17), a spring contact finger (7-1) is arranged in the contact finger assembly shell (7), the casing connecting piece (7-2) is connected on the periphery of the contact finger assembly shell (7) through a bolt, the cable casing II (19) is fixedly connected on the left end face of the casing connecting piece (7-2), an insulating pull rod (8) is fixedly connected at the lower end of the contact finger assembly shell (7) through a bolt, an insulating pull rod (14) is arranged in the insulating pull rod (14), the upper end of the insulating pull rod (8) is connected with the lower end of the spring contact finger (7-1), a transmission device (9) is connected with the support (10), and the permanent magnet operating mechanism (16) is arranged on the inner side of the support (10), vacuum bubble (6) are connected in the top of touching finger assembly shell (7), pass through connecting piece (15) fixed connection conductive contact casing (13) in the upper end of vacuum circuit breaker casing (17), be equipped with down conductive seat (5) below in conductive contact casing (13), contact seat (4) are equipped with in the top of conductive seat (5) down, contact (20) are equipped with in contact seat (4), with bolt fixed connection cable integral type sleeve pipe (12) on the periphery of contact seat (4), center department is equipped with guide bar (3) in contact (20), transmission case (11) are connected through last conductive seat (2) in guide bar (3) top, go up conductive seat (2) fixed connection below transmission case (11), three station operating device (1) are connected to transmission case (11) top.

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