CN203179826U - Adjustable fuse tube of drop-out fuse - Google Patents

Adjustable fuse tube of drop-out fuse Download PDF

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Publication number
CN203179826U
CN203179826U CN 201320229656 CN201320229656U CN203179826U CN 203179826 U CN203179826 U CN 203179826U CN 201320229656 CN201320229656 CN 201320229656 CN 201320229656 U CN201320229656 U CN 201320229656U CN 203179826 U CN203179826 U CN 203179826U
Authority
CN
China
Prior art keywords
fuse
contact
tube
adjustable
drop
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
CN 201320229656
Other languages
Chinese (zh)
Inventor
张宇
闫铁军
李敬红
孙俊
王建军
刘洪波
杨明
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.)
State Grid Corp of China SGCC
State Grid Jibei Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
State Grid Jibei Electric Power 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 State Grid Corp of China SGCC, State Grid Jibei Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN 201320229656 priority Critical patent/CN203179826U/en
Application granted granted Critical
Publication of CN203179826U publication Critical patent/CN203179826U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses an adjustable fuse tube of a drop-out fuse, which comprises an insulation tube, an upper contact and a lower contact. The upper contact and the lower contact are respectively arranged on the two end parts of the insulation tube. The upper contact is movably connected on one end part of the insulation tube so as to make the length between the upper contact and the lower contact adjustable. The adjustable fuse tube of the drop-out fuse is convenient to use. In an overload fusing condition, a common operator can perform replacement and processing. The first-aid repair time is significantly shortened. The power supply reliability is improved.

Description

The adjustable fuse tube of drop out fuse
Technical field
The utility model relates to the protective device of main transformer equipment in a kind of electric power system, refers to a kind of adjustable fuse tube of drop out fuse especially.
Background technology
The main transformer protection of 35kV transforming plant main transformer capacity below 6300kVA adopts the high voltage drop-out type fuse cutout protection at present, and K type fuse is housed in the fuse tube, and during overload, fuse failure plays the effect of protection main transformer.This kind fuse switch in use, especially at load boom period, regular meeting is burnt out during moving contact and since each station owner become used fuse switch model may disunity, will run into and newly change the fuse tube upper contact head and fixed contact can't block real situation.At this moment can only report scheduling, the main transformer fuse is changeed maintenance, ask the maintainer to debug.So just prolonged the repairing interruption duration, waited the maintainer to hurry on a journey the time if count in again, that is just longer, has had a strong impact on power supply reliability.
The utility model content
In view of the problems referred to above that prior art exists, the purpose of this utility model is to provide a kind of adjustable fuse tube of conveniently replaced drop out fuse.
To achieve these goals, the adjustable fuse tube of a kind of drop out fuse that the utility model provides, comprise insulated tube, upper contact head and following contact, described upper contact head and described contact down are separately positioned on two ends of described insulated tube, wherein, described upper contact head is movably connected in an end of described insulated tube so that described upper contact head and described adjustable length between the contact down.
As preferably, described upper contact head movably is set in the end of described insulated tube by a connection piece.
As preferably, described connector is provided with an adjustment screw that is used for fixing described connector.
The fuse tube of adjustable drop out fuse of the present utility model has advantage easy to use, and when overload fusing took place, general operations staff just can change processing, shortens the repairing time greatly, has improved power supply reliability.
Description of drawings
Fig. 1 is the overall structure schematic diagram of the fuse tube of adjustable drop out fuse of the present utility model.
Fig. 2 is the enlarged drawing of upper semisection of the fuse tube of adjustable drop out fuse of the present utility model.
Embodiment
Below in conjunction with accompanying drawing structure of the present utility model is further described in detail.
As shown in Figure 1, the adjustable fuse tube of a kind of drop out fuse that the utility model provides, comprise insulated tube 1, upper contact head 2 and following contact 3, described upper contact head 2 and described contact 3 down are separately positioned on two ends of described insulated tube 1, wherein, described upper contact head 2 is to be movably connected in an end of described insulated tube 1 so that described upper contact head 2 and described adjustable length between the contact 3 down.The fuse tube of adjustable drop out fuse of the present utility model is adjustable with the Position Design of upper contact head 2 on insulated tube, and when overload fusing took place, general operations staff just can change processing to fuse tube like this.Even because each station owner becomes used fuse switch model possibility disunity, can not run into the upper contact head 2 that newly changes fuse tube yet and can't block real situation with the fixed contact (not shown).Shorten the repairing time greatly, improved power supply reliability.
In the present embodiment, as preferably, described upper contact head 2 movably is set in the end of described insulated tube 1 by a connection piece 4.And as further preferred, described connector 4 is provided with an adjustment screw 5 that is used for fixing described connector 4.Thus, general operations staff can determine the length of the used fuse tube of the used fuse switch of main transformer earlier when fuse tube being changed processing, adjust the position of upper contact head 2 then up and down by adjustment screw 5, so that upper contact head 2 is real with the fixed contact card.
By the specific embodiment of the fuse tube of above adjustable drop out fuse of the present utility model as can be seen, the utlity model has easy to usely, when overload fusing took place, general operations staff just can change processing, shorten the repairing time greatly, improved power supply reliability.
Certainly; the above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection range of the present utility model.

Claims (3)

1. the adjustable fuse tube of a drop out fuse, comprise insulated tube, upper contact head and following contact, described upper contact head and described contact down are separately positioned on two ends of described insulated tube, it is characterized in that described upper contact head is movably connected in an end of described insulated tube so that described upper contact head and described adjustable length between the contact down.
2. the adjustable fuse tube of drop out fuse as claimed in claim 1 is characterized in that, described upper contact head movably is set in the end of described insulated tube by a connection piece.
3. the adjustable fuse tube of drop out fuse as claimed in claim 2 is characterized in that, described connector is provided with an adjustment screw that is used for fixing described connector.
CN 201320229656 2013-04-28 2013-04-28 Adjustable fuse tube of drop-out fuse Expired - Fee Related CN203179826U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320229656 CN203179826U (en) 2013-04-28 2013-04-28 Adjustable fuse tube of drop-out fuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320229656 CN203179826U (en) 2013-04-28 2013-04-28 Adjustable fuse tube of drop-out fuse

Publications (1)

Publication Number Publication Date
CN203179826U true CN203179826U (en) 2013-09-04

Family

ID=49076489

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320229656 Expired - Fee Related CN203179826U (en) 2013-04-28 2013-04-28 Adjustable fuse tube of drop-out fuse

Country Status (1)

Country Link
CN (1) CN203179826U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105118753A (en) * 2015-07-23 2015-12-02 国家电网公司 Drop fuse bar with adjustable length

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105118753A (en) * 2015-07-23 2015-12-02 国家电网公司 Drop fuse bar with adjustable length

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Legal Events

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

Granted publication date: 20130904

Termination date: 20160428