WO2019210457A1 - Condensateur haute tension à conducteur souple - Google Patents

Condensateur haute tension à conducteur souple Download PDF

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Publication number
WO2019210457A1
WO2019210457A1 PCT/CN2018/085295 CN2018085295W WO2019210457A1 WO 2019210457 A1 WO2019210457 A1 WO 2019210457A1 CN 2018085295 W CN2018085295 W CN 2018085295W WO 2019210457 A1 WO2019210457 A1 WO 2019210457A1
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WO
WIPO (PCT)
Prior art keywords
sealing
sealing seat
flexible wire
capacitor
casing
Prior art date
Application number
PCT/CN2018/085295
Other languages
English (en)
Chinese (zh)
Inventor
王春华
顾明锋
宋玉锋
顾曹新
姚卫东
丁菊
顾勇
Original Assignee
江苏现代电力科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 江苏现代电力科技股份有限公司 filed Critical 江苏现代电力科技股份有限公司
Priority to PCT/CN2018/085295 priority Critical patent/WO2019210457A1/fr
Publication of WO2019210457A1 publication Critical patent/WO2019210457A1/fr

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/224—Housing; Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/228—Terminals
    • H01G4/236—Terminals leading through the housing, i.e. lead-through

Definitions

  • the present invention relates to a high voltage capacitor, and more particularly to a flexible wire high voltage capacitor.
  • a high voltage capacitor (formerly known as a phase shifting capacitor) is one of the reactive power sources of the power system and is used to increase the power factor of the power grid.
  • the high voltage capacitor is mainly composed of an outlet ceramic sleeve, a capacitor component group and a casing.
  • the outer casing is sealed and welded with a thin steel plate, and the outer porcelain sleeve is welded to the outer casing.
  • the terminal is led out of the outlet bushing.
  • the capacitive component group also called the core in the outer casing is connected by a plurality of capacitive components.
  • the capacitor element is made of capacitor paper, film paper composite or pure film as a medium, and is made of aluminum-platinum as a plate.
  • the capacitive elements can be connected in series or in parallel.
  • the capacitive element group of a single three-phase capacitor is connected in a triangular shape inside the casing.
  • a fuse is connected to each of the capacitor elements as an internal short-circuit protection of the capacitor.
  • Some capacitors are equipped with discharge resistors. When the capacitor is disconnected from the grid, it can be discharged through the discharge resistor. Under normal conditions, the residual voltage of the capacitor can be reduced to less than 75V after 10 minutes.
  • capacitors are a common electrical component.
  • the current 3kV-20kV capacitors are high-voltage ceramic bottles because of their high voltage levels. This method is bulky, heavy, and costly. There are space requirements and restrictions.
  • the technical problem to be solved by the present invention is to provide a flexible wire high voltage capacitor which is small in size and low in cost.
  • the technical solution adopted by the present invention is:
  • a flexible wire high voltage capacitor comprising: a casing, a capacitor element, a medium, a high voltage flexible wire and a sealing component, the casing is a sealed casing, the medium is filled in a sealed cavity in the casing, and the capacitor component is disposed in the casing cavity The inside is immersed in the medium, and the high-voltage flexible wire is fixed to the upper side of the casing through the sealing member and the two high-voltage flexible wires are respectively connected to the two terminals of the capacitor element.
  • the high voltage flexible wire comprises a conductor and an insulating layer, the insulating layer is coated on the outside of the conductor and the thickness of the insulating layer is at least twice the diameter of the conductor.
  • the sealing element comprises a sealing seat and a sealing cover
  • the sealing seat is fixed on the upper side of the outer casing
  • the sealing seat is provided with a through hole for the high-voltage soft wire to pass through
  • the upper end of the sealing seat through hole is provided with a plurality of notches, the notch
  • the upper end of the sealing seat is opened downward along the axial direction of the sealing seat and a plurality of notches are equally spaced along the circumference of the sealing seat at the upper end of the sealing seat.
  • the outer side of the sealing seat is provided with an external thread
  • the inner side of the sealing cover is arranged to match the external thread of the sealing seat.
  • the internal thread has a through hole for the high-voltage flexible wire to pass through the upper end of the sealing cover, and the sealing cover is disposed on the sealing seat to be screwed with the sealing seat.
  • the sealing element comprises a connecting portion, an O-ring and a plurality of screws
  • the connecting portion is a disc shape protruding from the high-voltage flexible wire
  • the connecting portion is integrally formed with the high-voltage flexible wire
  • the lower side of the connecting portion and the upper side of the outer casing A screw hole is opened in the upper part, and a plurality of screws are inserted into the screw hole from the inner side of the outer casing to fix the connecting portion
  • the O-ring is disposed inside the connecting portion.
  • the medium is a capacitor oil
  • the capacitor oil comprises one or more of benzyl toluene, diarylethane, and phenylethylphenylethane.
  • the insulating layer of the high-voltage flexible wire is made of silicone rubber, fluororubber or Teflon.
  • the outer casing is made of a stainless steel plate seal welded.
  • the invention Compared with the prior art, the invention has the following advantages and effects: the invention adopts a soft wire as the lead end of the capacitor, thereby reducing the volume of the entire capacitor, and the flexible wire is convenient to connect, the cost is low, and the installation is more convenient. Flexible and lightweight.
  • Figure 1 is a schematic illustration of a flexible wire high voltage capacitor of the present invention.
  • FIG. 2 is a schematic view of a high voltage flexible wire of the present invention.
  • Figure 3 is a schematic view of Embodiment 1 of the sealing member of the present invention.
  • Figure 4 is a schematic view of a second embodiment of the sealing member of the present invention.
  • a flexible wire high voltage capacitor of the present invention comprises a casing 1, a capacitor element 3, a medium 2, a high voltage flexible wire 4 and a sealing member 5, the casing 1 being a sealed casing, and the medium 2 being filled in the casing 1 In the sealed cavity, the capacitive element 3 is disposed in the inner cavity of the outer casing 1 and immersed in the medium 2.
  • the high-voltage flexible wire 4 is fixed on the upper side of the outer casing 1 through the sealing element 5 and the two high-voltage flexible wires 4 and the two capacitive elements 3, respectively. Connected to the pole.
  • the high-voltage flexible wire 4 comprises a conductor 6 and an insulating layer 7, and the insulating layer 7 is coated on the outside of the conductor 6 and the thickness of the insulating layer 7 is at least twice the diameter of the conductor 6.
  • the sealing member 5 comprises a sealing seat 8 and a sealing cover 9 fixed on the upper side of the outer casing 1.
  • the sealing seat 8 is provided with a through hole through which the high-voltage flexible wire 4 passes and the sealing seat 8 is provided with a plurality of notches at the upper end of the through hole. 10, the notch 10 is opened downward from the upper end of the sealing seat 8 along the axial direction of the sealing seat 8 and a plurality of notches 10 are distributed at equal intervals along the circumferential direction of the sealing seat 8 at the upper end of the sealing seat 8, and the outer side of the sealing seat 8 is provided with an external thread.
  • the inner side of the sealing cover 9 is provided with an internal thread matching the external thread of the sealing seat 8.
  • the upper end of the sealing cover 9 is provided with a through hole for the high-voltage flexible wire 4 to pass through and the sealing cover 9 is covered on the sealing seat 8 to be screwed with the sealing seat 8. .
  • the medium 2 is a capacitor oil, and the capacitor oil contains one or more of benzyl toluene, diarylethane, and phenylethylphenylethane.
  • the insulating layer 7 of the high-voltage flexible wire 4 is made of silicone rubber, fluororubber or Teflon.
  • the outer casing 1 is made of a stainless steel plate seal welded.
  • a flexible wire high voltage capacitor comprises a casing 1, a capacitor element 3, a medium 2, a high voltage flexible wire 4 and a sealing member 5, the casing 1 is a sealed casing, and the medium 2 is filled in a sealed cavity in the casing 1, the capacitor element 3 Provided in the inner cavity of the outer casing 1 and submerged in the medium 2, the high-voltage flexible wire 4 is fixed to the upper side of the outer casing 1 by the sealing member 5 and the two high-voltage flexible wires 4 are respectively connected to the two terminals of the capacitive element 3.
  • the high-voltage flexible wire 4 comprises a conductor 6 and an insulating layer 7, and the insulating layer 7 is coated on the outside of the conductor 6 and the thickness of the insulating layer 7 is at least twice the diameter of the conductor 6.
  • the sealing member 5 includes a connecting portion 11, an O-ring 12 and a plurality of screws 13, the connecting portion 11 is in the shape of a disc protruding from the high-voltage flexible wire 4, and the connecting portion 11 is integrally formed with the high-voltage flexible wire 4, and the connecting portion 11 is under A screw hole is formed in the upper side of the side and the outer casing 1, and a plurality of screws 13 are inserted into the screw holes from the inner side of the outer casing 1 to lock the fixed connecting portion 11, and the O-ring 12 is disposed inside the connecting portion 11.
  • the medium 2 is a capacitor oil, and the capacitor oil contains one or more of benzyl toluene, diarylethane, and phenylethylphenylethane.
  • the insulating layer 7 of the high-voltage flexible wire 4 is made of silicone rubber, fluororubber or Teflon.
  • the outer casing 1 is made of a stainless steel plate seal welded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

L'invention concerne un condensateur haute tension à conducteur souple, contenant un boîtier externe (1), un élément capacitif (3), un milieu (2), un conducteur flexible haute tension (4), et un élément d'étanchéité (5) ; le boîtier externe (1) est un boîtier étanche ; le milieu (2) est rempli dans une cavité de logement scellée dans le boîtier externe (1) ; l'élément capacitif (3) est disposé dans la cavité de réception intérieure du boîtier extérieur (1) et est immergé dans le milieu (2) ; le conducteur flexible haute tension (4) est fixé sur le côté supérieur du boîtier extérieur (1) au moyen de l'élément d'étanchéité (5), et les deux conducteurs flexibles haute tension (5) sont connectés aux deux bornes de l'élément de condensateur (3), respectivement. Un conducteur flexible est utilisé en tant que borne pour le condensateur, réduisant ainsi le volume de l'ensemble du condensateur ; en outre, le conducteur flexible est pratique à connecter, est de faible coût, et est plus flexible pour l'installation et plus léger en poids.
PCT/CN2018/085295 2018-05-02 2018-05-02 Condensateur haute tension à conducteur souple WO2019210457A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/085295 WO2019210457A1 (fr) 2018-05-02 2018-05-02 Condensateur haute tension à conducteur souple

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/085295 WO2019210457A1 (fr) 2018-05-02 2018-05-02 Condensateur haute tension à conducteur souple

Publications (1)

Publication Number Publication Date
WO2019210457A1 true WO2019210457A1 (fr) 2019-11-07

Family

ID=68386860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/085295 WO2019210457A1 (fr) 2018-05-02 2018-05-02 Condensateur haute tension à conducteur souple

Country Status (1)

Country Link
WO (1) WO2019210457A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2140097Y (zh) * 1992-10-28 1993-08-11 宁波电容器总厂 电容器引出端子
CN2344848Y (zh) * 1998-09-22 1999-10-20 西安神电避雷器有限公司 组合式全绝缘金属氧化物避雷器
CN202373456U (zh) * 2011-12-14 2012-08-08 河南省电力公司鹤壁供电公司 一种电容器
CN202502907U (zh) * 2012-03-22 2012-10-24 上海市电力公司 一种用于电力系统的并联电容装置
CN206711765U (zh) * 2017-02-05 2017-12-05 无锡市电力滤波有限公司 一种油浸式电力电子电容器的接线端子的密封结构
CN107910182A (zh) * 2017-11-10 2018-04-13 江苏现代电力科技股份有限公司 一种软导线高压电容器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2140097Y (zh) * 1992-10-28 1993-08-11 宁波电容器总厂 电容器引出端子
CN2344848Y (zh) * 1998-09-22 1999-10-20 西安神电避雷器有限公司 组合式全绝缘金属氧化物避雷器
CN202373456U (zh) * 2011-12-14 2012-08-08 河南省电力公司鹤壁供电公司 一种电容器
CN202502907U (zh) * 2012-03-22 2012-10-24 上海市电力公司 一种用于电力系统的并联电容装置
CN206711765U (zh) * 2017-02-05 2017-12-05 无锡市电力滤波有限公司 一种油浸式电力电子电容器的接线端子的密封结构
CN107910182A (zh) * 2017-11-10 2018-04-13 江苏现代电力科技股份有限公司 一种软导线高压电容器

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