CN203423137U - Windproof fuse for 35kV wind power plant - Google Patents

Windproof fuse for 35kV wind power plant Download PDF

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Publication number
CN203423137U
CN203423137U CN201320481403.3U CN201320481403U CN203423137U CN 203423137 U CN203423137 U CN 203423137U CN 201320481403 U CN201320481403 U CN 201320481403U CN 203423137 U CN203423137 U CN 203423137U
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China
Prior art keywords
combination
fixed contact
contact
contact combination
fuse
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Active
Application number
CN201320481403.3U
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Chinese (zh)
Inventor
崔旭东
刘听枫
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Chint Electric Co Ltd
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Chint Electric Co Ltd
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Priority to CN201320481403.3U priority Critical patent/CN203423137U/en
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Publication of CN203423137U publication Critical patent/CN203423137U/en
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Abstract

The utility model provides a windproof fuse for a 35kV wind power plant. The windproof fuse is characterized in that the windproof fuse comprises an upper wire connection terminal, wherein the upper wire connection terminal is in contact with an upper fixed contact combination, the upper fixed contact combination is fixed on a transverse fixation structure, the transverse fixation structure is used to provide a transverse supporting force for the upper fixed contact combination, one surface of the upper fixed contact combination which faces the upper fixed contact combination is provided with a wedge groove whose width is diminished from up to bottom, the contact portion of the upper fixed contact combination is located in the wedge groove; the contact portion of a lower fixed contact combination is in contact with a lower fixed contact elastic sheet located in the lower fixed contact combination, and the lower fixed contact elastic sheet is connected with a lower wire connection terminal. The dropping type fuse provided in the utility model has advantages of reasonable structure and fastness, can be operated stability in high wind speed conditions, can be used to prevent the occurrence of malfunctions, is subjected to batch operation, and has the advantage of good effect.

Description

A kind of 35kV wind power plant wind-proof fuse
Technical field
The utility model relates to a kind of wind power plant 35kV electric power system wind-proof fuse switch, and device is on 35kV distribution transformer high-pressure side or distribution wire branch circuit, and short circuit, overload protection as transformer and circuit have wind-shielding function simultaneously.
Background technology
The HRW5-35 type fuse switch of traditional structure as shown in Figure 1, comprises upper connecting terminal 1, upper static contact combination 2, upper moving contact combination 3, lower moving contact combination 4, lower fixed contact combination 5, lower fixed contact shell fragment 6 and lower connecting terminal 7.Syndeton between upper static contact combination 2 and upper moving contact combination 3 as shown in Figure 2, one side of upper static contact combination 2 is and upper moving contact combination 3 contact-making surfaces that contact, on this contact-making surface, be provided with a contact groove, the contact site of upper moving contact combination 3, in this contact groove, is provided with spring 8 at the opposite side of upper static contact combination 2.As shown in Figure 3, the contact site of lower moving contact combination 4 contacts with the lower fixed contact shell fragment 6 that is positioned at lower fixed contact combination 5 syndeton between lower moving contact combination 4 and lower fixed contact combination 5.Because wind power plant wind speed is high, during the operation of the HRW5-35 type fuse switch of old-fashioned structure, easily there is self falling misoperation under non-failure conditions, cause power outage, bring loss larger.
Summary of the invention
The technical problems to be solved in the utility model is to prevent that fuse switch from issuing the misoperation of raw self falling in higher wind velocity condition.
In order to solve the problems of the technologies described above, the technical solution of the utility model has been to provide a kind of 35kV wind power plant wind-proof fuse, it is characterized in that: comprise upper connecting terminal, upper connecting terminal contacts with upper static contact combination, upper static contact combination is fixed on horizontal fixed structure, by horizontal fixed structure, to upper static contact combination, provide cross-brace power, on making progress the one side of moving contact combination, upper static contact combinatorial surface is provided with the wedge-shaped slot that width diminishes from top to bottom, the contact site of upper moving contact combination is in this wedge-shaped slot, thereby this contact site is only from top to bottom, motion is stuck in wedge-shaped slot and contacts with the cell wall of wedge-shaped slot both sides after putting in place, now, loop conducting, the contact site of lower touch head combination contacts with the lower fixed contact shell fragment that is positioned at lower fixed contact combination, lower fixed contact shell fragment connects lower connecting terminal, wherein, lower fixed contact shell fragment is at least two stepped constructions, the arc copper sheet that is positioned at outside contacts with the contact site of lower touch head combination, and stainless steel substrates is positioned at inner side.
Preferably, on described upper connecting terminal and/or described lower connecting terminal, be coated with tin layer.
Preferably, described horizontal fixed structure comprises horizontally disposed fixture block, and described upper static contact composite card is on fixture block, and fixture block is located on the base plate of perpendicular layout.
The fuse switch structure that the utility model provides is more reasonable, more firm, can be in stable operation under high wind speed, prevent the generation of misoperation, through operation in batches, respond well, and meet GB/T15166.3-2008 < < high-voltage alternating fuse the 3rd part: the requirement of injection fuse box > >.
Accompanying drawing explanation
Fig. 1 is HRW5-35 type fuse switch structural representation;
Fig. 2 is the upper static contact combination syndeton schematic diagram between combining with upper moving contact in Fig. 1;
Fig. 3 is the syndeton schematic diagram between lower moving contact combination and the combination of lower fixed contact;
A kind of 35kV wind power plant wind-proof fuse that Fig. 4 provides for the utility model;
Fig. 5 is the syndeton schematic diagram between the combination of upper static contact in Fig. 4 is combined with upper moving contact;
Fig. 6 is the syndeton schematic diagram between the combination of lower moving contact in Fig. 4 is combined with lower fixed contact.
Embodiment
For the utility model is become apparent, hereby with preferred embodiment, and coordinate accompanying drawing to be described in detail below.
As shown in Figure 4, a kind of 35kV wind power plant wind-proof fuse that the utility model provides, comprise upper connecting terminal 1, upper connecting terminal 1 contacts with upper static contact combination 9, upper static contact combination 9 is fixed on horizontal fixed structure 11, by horizontal fixed structure 11, to upper static contact combination 9, provides cross-brace power.
In conjunction with Fig. 5, in upper static contact combination 9, in the one side of moving contact combination 3, be provided with the wedge-shaped slot that width diminishes from top to bottom facing up, the contact site of upper moving contact combination 3 is in this wedge-shaped slot.When this contact site is during in the middle and upper part of wedge-shaped slot, contact site does not contact with the cell wall of wedge-shaped slot both sides, and loop disconnects.Contact site is stuck in wedge-shaped slot after from top to bottom moving and putting in place, thereby contacts with the cell wall of wedge-shaped slot both sides, now, and loop conducting.Laterally fixed structure 11 comprises horizontally disposed fixture block, and upper static contact combination 9 is stuck on fixture block, and fixture block is located on the base plate of perpendicular layout.By horizontal fixed structure 11, make it more firm, wind loading rating is stronger.
In conjunction with Fig. 6, the contact site of lower touch head combination 4 contacts with the lower fixed contact shell fragment 10 that is positioned at lower fixed contact combination 5, lower fixed contact shell fragment 10 connects lower connecting terminal 7, wherein, lower fixed contact shell fragment 10 is two stepped constructions, the arc copper sheet that is positioned at outside contacts with the contact site of lower touch head combination 4, and stainless steel substrates is positioned at inner side.Lower fixed contact shell fragment 10, by original single copper sheet, changes copper sheet into and adds stainless steel substrates reinforcement processing, and elastic force strengthens, and structure is more firm, prevents from producing because wind speed is high misoperation.
On upper connecting terminal 1 and lower connecting terminal 7, be coated with tin layer, can effectively protect copper tip not by calcination.
After above improvement, the wind-proof fuse switch product structure that the utility model provides is more reasonable, more firm, can prevent the generation of misoperation in stable operation under high wind speed, through operation in batches, respond well.Technical parameter of the present utility model is as shown in the table:

Claims (3)

1. a 35kV wind power plant wind-proof fuse, it is characterized in that: comprise upper connecting terminal (1), upper connecting terminal (1) contacts with upper static contact combination (9), upper static contact combination (9) is fixed on horizontal fixed structure (11), by horizontal fixed structure (11), to upper static contact combination (9), provide cross-brace power, in upper static contact combination (9), in the one side of moving contact combination (3), be provided with the wedge-shaped slot that width diminishes from top to bottom facing up, the contact site of upper moving contact combination (3) is in this wedge-shaped slot, thereby this contact site is only from top to bottom, motion is stuck in wedge-shaped slot and contacts with the cell wall of wedge-shaped slot both sides after putting in place, now, loop conducting, the contact site of lower touch head combination (4) contacts with the lower fixed contact shell fragment (10) that is positioned at lower fixed contact combination (5), lower fixed contact shell fragment (10) connects lower connecting terminal (7), wherein, lower fixed contact shell fragment (10) is at least two stepped constructions, the arc copper sheet that is positioned at outside contacts with the contact site that lower touch head combines (4), and stainless steel substrates is positioned at inner side.
2. a kind of 35kV wind power plant wind-proof fuse as claimed in claim 1, is characterized in that: on described upper connecting terminal (1) and/or described lower connecting terminal (7), be coated with tin layer.
3. a kind of 35kV wind power plant wind-proof fuse as claimed in claim 1, it is characterized in that: described horizontal fixed structure (11) comprises horizontally disposed fixture block, described upper static contact combination (9) is stuck on fixture block, and fixture block is located on the base plate of perpendicular layout.
CN201320481403.3U 2013-08-07 2013-08-07 Windproof fuse for 35kV wind power plant Active CN203423137U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320481403.3U CN203423137U (en) 2013-08-07 2013-08-07 Windproof fuse for 35kV wind power plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320481403.3U CN203423137U (en) 2013-08-07 2013-08-07 Windproof fuse for 35kV wind power plant

Publications (1)

Publication Number Publication Date
CN203423137U true CN203423137U (en) 2014-02-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320481403.3U Active CN203423137U (en) 2013-08-07 2013-08-07 Windproof fuse for 35kV wind power plant

Country Status (1)

Country Link
CN (1) CN203423137U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105070617A (en) * 2015-07-21 2015-11-18 廊坊北熔电气有限公司 Isolated fuse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105070617A (en) * 2015-07-21 2015-11-18 廊坊北熔电气有限公司 Isolated fuse

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