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Capacitive voltage transformer

A voltage transformer and capacitive technology, which is applied in the direction of inductors, capacitors, fixed capacitors, etc., can solve the problems of capacitance changes and product capacitance instability, and achieve the suppression of capacitance changes, avoiding the decline of insulation performance, and versatility high effect

Active Publication Date: 2020-09-08
SUZHOU APP SCI ACAD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the capacitance of the existing capacitive voltage transformer will change due to vibration or temperature changes during the handling process, and the capacitance of the product is unstable.

Method used

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Embodiment Construction

[0056] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0057] In order to achieve the purpose of the present invention, in some embodiments of a capacitor voltage transformer, a capacitor voltage transformer includes: a capacitor voltage divider component and an electromagnetic unit, and the capacitor voltage divider component includes: one or more stages stacked columns, stacked columns are coupling capacitors, such as Figure 1-4 As shown, the coupling capacitor includes: an upper cover plate 1, a lower cover plate 2, an insulating sleeve 3 and a capacitor core 4, and the upper cover plate 1, the lower cover plate 2 and the insulating sleeve 3 form an accommodation chamber, which is filled with The sealed cavity of the insulating oil, the capacitor core 4 is immersed in the insulating oil, and the coupling capacitor also includes:

[0058] The squirrel cage electrodes 5 are arranged between th...

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Abstract

The invention discloses a capacitive voltage transformer. The capacitive voltage transformer comprises a capacitance voltage division assembly and an electromagnetic unit, the capacitance voltage division assembly comprises a one-stage or multi-stage stacked column, which is a coupling capacitor, and the coupling capacitor includes: an upper cover plate, a lower cover plate, an insulating sleeve,a capacitor core, a mouse cage electrode, a volume adapting device, a high-voltage lead and a low-voltage lead, a medium-voltage lead and a lead terminal are also arranged on a lowermost coupling capacitor, the low-voltage lead of the lowermost coupling capacitor is led out through a low-voltage lead-out pipe arranged in the lead terminal, the medium-voltage lead of the lowermost coupling capacitor is led out through a medium-voltage lead-out column arranged in the lead terminal, and the medium-voltage lead-out column penetrates out of the low-voltage lead-out pipe and is coaxial with the low-voltage lead-out pipe. The capacitive voltage transformer provided by the invention has the advantages of good insulation performance, small partial discharge capacity, excellent sealing performance,reliable performance, high mechanical strength, small product height, long operation life, stable and reliable operation and the like.

Description

technical field [0001] The invention belongs to the technical field of voltage transformers, in particular to a capacitive voltage transformer. Background technique [0002] Capacitive voltage transformers for high-voltage power transmission are composed of capacitive voltage divider components and electromagnetic units. Among them, the capacitive voltage divider component part is composed of one or more stacked columns according to the voltage level of the product. The stacked columns are coupling capacitors, which are stacked together to form the whole capacitive voltage divider component. [0003] However, the capacitance of the existing capacitive voltage transformer will change due to vibration or temperature changes during the transportation process, and the capacitance of the product is unstable. Contents of the invention [0004] In order to solve the above technical problems, the present invention proposes a capacitive voltage transformer. [0005] In order to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/02H01F27/14H01F27/28H01F27/29H01F27/32H01F27/34H01F27/36H01F27/40H01F38/26G01R15/06G01R15/18
CPCH01F38/26H01F27/40H01F27/28H01F27/14H01F27/2828H01F27/29H01F27/34H01F27/324H01F27/022G01R15/06G01R15/18H01G4/38H01G4/224H01G4/22H01G4/232H01G4/258H01G4/04H01G4/01
Inventor 王占宾胡醇胡德霖李杰殷兵钱明
Owner SUZHOU APP SCI ACAD CO LTD
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