Transformer for vacuum capacitor type instrument

US11342127B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11342127-B2
Application numberUS-201816960397-A
CountryUS
Kind codeB2
Filing dateOct 16, 2018
Priority dateJan 10, 2018
Publication dateMay 24, 2022
Grant dateMay 24, 2022

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A vacuum-capacitor-type instrument voltage transformer (1) is equipped with a main capacitor (2) and an insulating tube (3) that accommodates the main capacitor (2). A voltage dividing capacitor (4) is connected to the main capacitor (2) in series. The main capacitor (2) is equipped with a plurality of vacuum capacitors (2a) to (2c) that are connected in series. A high-voltage-side electrode (6) is provided on a high-voltage side of the insulating tube (3), and a ground-side electrode (7) is provided on its low-voltage side. The high-voltage-side electrode (6) is equipped with a high-voltage shield (8). Electrostatic capacity of the vacuum capacitor (for example, the vacuum capacitor (2a)) disposed on the high-voltage side is set to be greater than electrostatic capacity of the vacuum capacitor (for example, the vacuum capacitor (2b)) disposed on the low-voltage side.

First claim

Opening claim text (preview).

The invention claimed is: 1. A vacuum-capacitor-type instrument voltage transformer, comprising: a main capacitor that provides a connection between a primary line-path side and a voltage dividing point; a voltage dividing capacitor that is connected with the main capacitor in series and provides a connection between the voltage dividing point and a ground-side terminal; and an insulating tube accommodating the main capacitor, wherein the main capacitor comprises a plurality of vacuum capacitors that are connected in series between the primary line-path side and the voltage dividing point, and wherein the plurality of vacuum capacitors are arranged such that electrostatic capacity of a vacuum capacitor disposed at a high-voltage side is greater than electrostatic capacity of a vacuum capacitor disposed at a low-voltage side.

Assignees

Inventors

Classifications

  • Dielectrics · CPC title

  • Sealings, e.g. for lead-in wires; Covers · CPC title

  • H01G4/38Primary

    Multiple capacitors, i.e. structural combinations of fixed capacitors · CPC title

  • Gas or vapour dielectrics · CPC title

  • Electrostatic or magnetic shielding · CPC title

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What does patent US11342127B2 cover?
A vacuum-capacitor-type instrument voltage transformer (1) is equipped with a main capacitor (2) and an insulating tube (3) that accommodates the main capacitor (2). A voltage dividing capacitor (4) is connected to the main capacitor (2) in series. The main capacitor (2) is equipped with a plurality of vacuum capacitors (2a) to (2c) that are connected in series. A high-voltage-side electrode (6…
Who is the assignee on this patent?
Meidensha Electric Mfg Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01G4/38. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue May 24 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).