CN201796743U - Fixed contact of an indoor high-voltage AC ground switch - Google Patents

Fixed contact of an indoor high-voltage AC ground switch Download PDF

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Publication number
CN201796743U
CN201796743U CN2010202906130U CN201020290613U CN201796743U CN 201796743 U CN201796743 U CN 201796743U CN 2010202906130 U CN2010202906130 U CN 2010202906130U CN 201020290613 U CN201020290613 U CN 201020290613U CN 201796743 U CN201796743 U CN 201796743U
Authority
CN
China
Prior art keywords
contact
fixed contact
ground switch
voltage
earthed switch
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN2010202906130U
Other languages
Chinese (zh)
Inventor
刘军超
黄伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Senyuan Electric Co Ltd
Original Assignee
Henan Senyuan Electric Co Ltd
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 Henan Senyuan Electric Co Ltd filed Critical Henan Senyuan Electric Co Ltd
Priority to CN2010202906130U priority Critical patent/CN201796743U/en
Application granted granted Critical
Publication of CN201796743U publication Critical patent/CN201796743U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a fixed contact of an indoor high-voltage AC ground switch. The fixed contact (1) adopts an I-shaped structure; a plane surface at the upper end is in contact with a bus; and two side surfaces at the lower end are in contact with a ground switch (2). The contact property of the fixed contact (1) and the ground switch (2) is changed from line contact into face to face contact, so that the contact area of the fixed contact and the ground switch is increased, and heavier short circuit current can pass through.

Description

A kind of fixed contact of indoor HVAC earthed switch
Technical field
The utility model belongs to and relates to a kind of earthed switch, and is special relevant with the indoor HVAC earthed switch.
Background technology
In the electric power power transmission and transforming equipment, the indoor HVAC earthed switch is supporting with high-tension switch cabinet, makes the network artificial earthing when overhauling as high-voltage electrical equipment, guarantees that the maintainer exempts from the visual plant of Danger Electric shock risk.Fixed contact is one of critical piece of earthed switch energising, needs to sustain the short circuit current that passes through, so the quality of fixed contact directly has influence on the electric property of earthed switch.The fixed contact of existing JN15 type earthed switch is a T type structure, and last transverse plane contacts with bus, and vertical two sides include the circular arc projection, and the circular arc projection contacts with the ground connection cutter.This contact property belongs to " line " contact, and the shortcoming of fixed contact is that the processing technology difficulty is big, and is smaller with the contact area of ground connection cutter, can not pass through bigger short circuit current.
The utility model content
The purpose of this utility model is that a kind of contact area with the ground connection cutter of design is big, the fixed contact of the indoor HVAC earthed switch of convenient processing.
The technical solution of the utility model is, a kind of fixed contact of indoor HVAC earthed switch is characterized in that, fixed contact is for falling I-shaped structure.
The utility model provides the fixed contact of indoor HVAC earthed switch, and last transverse plane contacts with bus, and the two sides, lower end contact with the ground connection cutter.Fixed contact is contacted by original " line " with ground connection cutter contact property and has become contacting of " face and face " like this, has increased contact-making surface, can pass through bigger short circuit current.
Description of drawings
Fig. 1 is the structural representation of the fixed contact of existing indoor HVAC earthed switch;
Fig. 2 is the structural representation of first embodiment of stationary contact of the utility model indoor HVAC earthed switch.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Among the figure: 1, fixed contact 2, ground connection cutter 3, stage clip 4, post insulator
As shown in Figure 2, the fixed contact 1 of the utility model indoor HVAC earthed switch is for falling I-shaped structure.
Transverse plane contacts with bus on the fixed contact 1 of this indoor HVAC earthed switch, the two sides, lower end contact with ground connection cutter 2, fixed contact 1 is contacted by original " line " with ground connection cutter 2 contact properties and has become contacting of " face and face ", increase the contact area of fixed contact and ground connection cutter, can pass through bigger short circuit current.

Claims (1)

1. the fixed contact of an indoor HVAC earthed switch is characterized in that: fixed contact (1) is for falling I-shaped structure.
CN2010202906130U 2010-08-13 2010-08-13 Fixed contact of an indoor high-voltage AC ground switch Expired - Fee Related CN201796743U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010202906130U CN201796743U (en) 2010-08-13 2010-08-13 Fixed contact of an indoor high-voltage AC ground switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010202906130U CN201796743U (en) 2010-08-13 2010-08-13 Fixed contact of an indoor high-voltage AC ground switch

Publications (1)

Publication Number Publication Date
CN201796743U true CN201796743U (en) 2011-04-13

Family

ID=43851645

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010202906130U Expired - Fee Related CN201796743U (en) 2010-08-13 2010-08-13 Fixed contact of an indoor high-voltage AC ground switch

Country Status (1)

Country Link
CN (1) CN201796743U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102903559A (en) * 2012-10-31 2013-01-30 镇江华驰电器有限公司 Earthing switch
CN107785206A (en) * 2017-11-10 2018-03-09 河南森源电气股份有限公司 A kind of earthed switch and its contact assembly and contact

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102903559A (en) * 2012-10-31 2013-01-30 镇江华驰电器有限公司 Earthing switch
CN102903559B (en) * 2012-10-31 2015-05-20 镇江华驰电器有限公司 Earthing switch
CN107785206A (en) * 2017-11-10 2018-03-09 河南森源电气股份有限公司 A kind of earthed switch and its contact assembly and contact

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110413

Termination date: 20150813

EXPY Termination of patent right or utility model