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High-strength aging-resistant totally-enclosed outdoor high-voltage alternating-current isolating switch

A fully enclosed, high-voltage AC technology, which is applied in the direction of electric switches, high-voltage air circuit breakers, air switch components, etc., can solve problems such as mechanical strength to be improved, cladding layer burst, safety accidents, etc., to achieve simple structure and easy installation Flexible and adaptable effects

Active Publication Date: 2020-11-13
ELECTRIC POWER RES INST OF EAST INNER MONGOLIA ELECTRIC POWER +8
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditional outdoor high-voltage AC isolation switches generally use liquid or solid rubber to cover the conductive knife. However, during use, due to the poor heat dissipation of the above-mentioned rubber materials, the coating often bursts due to heat.
In addition, the mechanical strength of the traditional coated rubber material needs to be improved, so it is easy to be damaged due to the aging of the rubber during use due to the impact of birds, foreign objects, etc., resulting in short circuits or other safety accidents

Method used

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  • High-strength aging-resistant totally-enclosed outdoor high-voltage alternating-current isolating switch
  • High-strength aging-resistant totally-enclosed outdoor high-voltage alternating-current isolating switch
  • High-strength aging-resistant totally-enclosed outdoor high-voltage alternating-current isolating switch

Examples

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preparation example Construction

[0051] Among the present invention, the preparation method of the star-shaped polyester compound comprises the following steps:

[0052] (1) Add 120ml of a mixed solvent of anhydrous acetonitrile and DMF (the volume ratio of anhydrous acetonitrile and DMF is 1:1) into a 250mL three-necked round-bottom flask equipped with magnetic stirring and reflux condenser, and replace the three-necked flask with nitrogen Then add 3-8g p-hydroxybenzaldehyde, 8-12g pyridine, stir and mix at room temperature for 15min;

[0053] (2) Dissolve 2-5g of hexachlorocyclotriphosphazene in a mixed solvent of anhydrous acetonitrile and DMF (the volume ratio of anhydrous acetonitrile and DMF is 1:1), and add it dropwise to the system of step (1) After the completion of the dropwise addition, the room was raised to 60°C and reacted for 18 hours; after the reaction was completed, the precipitate was removed by suction filtration, and the filtrate was evaporated and concentrated, and the concentrated solut...

Embodiment 1

[0123] Embodiment 1 provides a high-strength anti-aging fully enclosed outdoor high-voltage AC isolating switch, such as figure 1 As shown, it includes an underframe 1, a first post insulator 2, a second post insulator 3, a conductive circuit, a static side contact finger seat 5, and a moving side contact finger seat 4; the underframe 1 is formed by one-time stamping of a cold-rolled steel plate; The conductive circuit includes a conductive switch 9, a moving contact 10, a static contact 11, a moving side terminal board 8, and a static side terminal board 7; the first post insulator 2 and the second post insulator 3 are arranged on the chassis 1 Both ends on the same side above; above the first post insulator 2, there is a static side contact finger seat 5; one end of the static side contact finger seat 5 is connected to a static side terminal board 7; above the second post insulator 3 A moving side contact finger seat 4 is provided; one end of the moving side contact finger s...

Embodiment 2

[0139] The difference between Example 2 and Example 1 is that the rubber coating material, in parts by weight, includes: 40 parts of EPDM, 20 parts of filler, 3 parts of PP-g-MAH, 1 part of stabilizer, polyphenylene sulfide 1 part, 1 part of functional additives, 1 part of other additives;

[0140] The filler is a mixture of α-alumina and washed kaolin in a weight ratio of 1:0.8; the polyphenylene sulfide is polydimethylsiloxane blended modified polyphenylene sulfide; the polydimethylsiloxane The dosage of siloxane is 5wt% of that of polyphenylene sulfide.

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Abstract

The invention relates to the technical field of electricity, and particularly relates to a high-strength aging-resistant totally-enclosed outdoor high-voltage alternating-current isolating switch. Theisolating switch comprises an underframe 1, a first post insulator 2, a second post insulator 3, a conductive loop, a static side contact finger seat 5 and a moving side contact finger seat 4, wherein the conductive loop comprises a conductive knife switch 9, a moving contact 10, a static contact 11, a moving side wiring board 8 and a static side wiring board 7; the conductive loop is of a totally-enclosed structure, and after the isolating switch is switched on, the conductive loop is completely enclosed in the insulating material. The invention also provides a rubber coating material. By coating the conductive knife switch, the insulating layer and the conductor are tightly attached, the strength, wear resistance, heat dissipation, aging resistance, impact strength, heat conductivity and processability of the conductive knife switch coating material of the isolating switch are improved, and the problems that the traditional coating material is poor in heat dissipation and mechanicalproperty and the coating layer is cracked and damaged due to heat are solved.

Description

technical field [0001] The invention relates to the field of electrical technology, in particular to a high-strength anti-aging fully enclosed outdoor high-voltage AC isolating switch. Background technique [0002] The isolating switch is the most widely used electrical appliance in switching appliances. Its working principle and structure are relatively simple, but due to the large amount of use and high requirements for working reliability, it has an impact on the design, establishment and safe operation of substations and power plants. Both are relatively large. The main function of the disconnector is to establish a reliable insulation gap after opening, and separate the settings or lines that need to be repaired from the power supply with an obvious disconnection point to ensure the safety of maintenance personnel and equipment. [0003] Traditional outdoor high-voltage AC isolating switches generally use liquid or solid rubber to cover the conductive blades. However, d...

Claims

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Application Information

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IPC IPC(8): H01H31/02H01H9/52H01H21/22H01H21/56H01H21/12H01H21/18
CPCH01H31/023H01H31/026H01H31/02H01H9/52H01H21/56H01H21/22H01H21/12H01H21/18H01H2009/526
Inventor 王远东鲍音夫曹阳刁凤新孙睿刘海波耿卫斌及海峰刘振英侯俊马香波夏丽珉
Owner ELECTRIC POWER RES INST OF EAST INNER MONGOLIA ELECTRIC POWER
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