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Novel self-healing low-voltage capacitor

A capacitor and self-healing technology, applied in the field of new self-healing low-voltage capacitors, can solve the problems of lack of adaptability and safety, and achieve the effect of improving maintainability, reducing recycling costs and environmental costs, and not easily damaged.

Active Publication Date: 2021-06-01
SUZHOU SURONG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Especially suitable for harsh industrial environments, the existing low-voltage capacitors do not have better adaptability and safety

Method used

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  • Novel self-healing low-voltage capacitor
  • Novel self-healing low-voltage capacitor
  • Novel self-healing low-voltage capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] Example: by figure 1 Connect the circuit in the wiring schematic diagram, make a capacitor unit by connecting the wrapped capacitor in series with a protective fuse (temperature-controlled type) and lead wires, and place the prepared capacitor unit in the element housing 1 (see Figure 2-3 ), the components are packaged with solid impregnated materials at room temperature, and made into the smallest dry capacitor monomer, with a mandrel in the middle, which is a hollow structure and can be cooled by air and other gases.

[0033] Each capacitor unit forms an array (such as 4x8, 5x8, etc.) plane by inserting cards, and then forms a multi-level frame structure through the special mandrel connection of each unit to form a stable structure, such as Figure 4 Shown; each capacitor monomer is connected in series and parallel with flexible wires or copper bars to lead out and reserve.

[0034] The capacitor bank formed into a stable structure is moved into the capacitor case 2...

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PUM

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Abstract

The invention discloses a novel self-healing low-voltage capacitor. For an element shell, a normal-temperature solid impregnation material is adopted to package an internal circuit; a circuit is arranged in the plurality of element shells, the plurality of element shells are fixed in a capacitor shell in a manner of filling and sealing by using a normal-temperature solid impregnating material, the circuit is integrally packaged into a cylinder, a core rod is arranged in the middle of the cylinder, the circuit comprises a plurality of capacitors C which are connected in parallel, each capacitor is connected in series with a protection fuse FR, and a discharge resistor R, an overvoltage protection piezoresistor RU and an LED voltage indicator lamp EV are electrically connected to lead-out connecting wires of the plurality of circuits. The capacitor shell adopts an open type combined plug-in structure, so that the capacitor element replacement and internal maintenance only need simple disassembly and assembly, the maintainability of the capacitor is remarkably improved, and the recovery cost of the capacitor and the environmental cost are reduced. According to the invention, the self-healing low-voltage capacitor made of the novel impregnated material is adopted, and the packaged circuit is not easy to damage.

Description

technical field [0001] The invention relates to the technical field of low-voltage capacitors, in particular to a novel self-healing low-voltage capacitor. It can be widely used in power quality related fields such as reactive power compensation and harmonic control of any low-voltage AC power distribution system. Background technique [0002] A self-healing low-voltage capacitor with a certain capacity is generally composed of a plurality of single capacitance elements (hereinafter referred to as "capacitance elements" or "elements") connected in series and parallel, then loaded into the shell, injected with impregnated material to seal, and lead out the terminal. [0003] Common impregnation materials include normal temperature liquid grease and normal temperature solid microcrystalline wax, epoxy resin, polyurethane, etc. [0004] As an impregnation, normal temperature liquid grease has excellent properties such as good insulation, sealing (isolation from air oxidation),...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/224H01G4/38H01G4/40
CPCH01G4/224H01G4/38H01G4/40
Inventor 陶文戈杨荣史正高高晨曦
Owner SUZHOU SURONG ELECTRIC