CN203690238U - Fuse insulating cylinder - Google Patents

Fuse insulating cylinder Download PDF

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Publication number
CN203690238U
CN203690238U CN201320820993.8U CN201320820993U CN203690238U CN 203690238 U CN203690238 U CN 203690238U CN 201320820993 U CN201320820993 U CN 201320820993U CN 203690238 U CN203690238 U CN 203690238U
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CN
China
Prior art keywords
fuse
insulating cylinder
cavity
switch
fixed contact
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.)
Active
Application number
CN201320820993.8U
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Chinese (zh)
Inventor
任召田
马炳烈
杨敬华
王瑞
焦军霞
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.)
GANSU GREAT WALL ELECTRICAL AND ELECTRICAL APPLIANCE ENGINEERING RESEARCH INSTITUTE Co Ltd
Tianshui Changcheng Switchgear Co Ltd
Original Assignee
GANSU GREAT WALL ELECTRICAL AND ELECTRICAL APPLIANCE ENGINEERING RESEARCH INSTITUTE Co Ltd
Tianshui Changcheng Switchgear 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 GANSU GREAT WALL ELECTRICAL AND ELECTRICAL APPLIANCE ENGINEERING RESEARCH INSTITUTE Co Ltd, Tianshui Changcheng Switchgear Co Ltd filed Critical GANSU GREAT WALL ELECTRICAL AND ELECTRICAL APPLIANCE ENGINEERING RESEARCH INSTITUTE Co Ltd
Priority to CN201320820993.8U priority Critical patent/CN203690238U/en
Application granted granted Critical
Publication of CN203690238U publication Critical patent/CN203690238U/en
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Abstract

The present utility model provides a novel combined electrical appliance scheme for a fuse insulating cylinder, and aims to solve the problem in the prior art that existing combined electrical appliance schemes are complex in structure and high in cost. The fuse insulating cylinder structurally comprises a short-circuit switch provided with the front and rear wire outgoing ends of a fuse and can be grounded through a three-station switch. The three-station switch and the short-circuit switch are in linkage with each other to be switched on. Meanwhile, a load switch is switched on, so that the two ends of the current-limiting fuse capable of being opened and closed are reliably grounded. The fuse insulating cylinder has the advantages of simple structure, complete function, small size, high reliability, low cost and the like.

Description

Fuse insulating cylinder
Technical field
The utility model relates to distribution technique field, is specifically related to a kind of fuse insulating cylinder.
Background technology
Along with the continuous progress of science and technology, the mankind are more and more higher to the requirement of distribution product, environmental protection, energy-conservation, intelligent, non-maintaining, highly reliable and low cost etc. become the developing direction of ring main unit, under this background, solid insulation ring main unit arises at the historic moment, and solid insulation ring main unit has fully phased out SF6 gas and corresponding gas tank parts on structural principle, adopts insulating sleeve to solidify switch block, connect each loop by enclosed busbar, entirety realizes totally-enclosed all insulation.From manufacturing, phase and phase is separated; From electric, alternate can short circuit.It does not have the parts such as pressure gas tank, relief valve, has really realized non-maintaining.For solid isolated vacuum ring main unit, standard-required " switch-fuse combination, when after on-load switch separating brake, reliable ground is answered at current limiting fuse two ends ".Existing combined electrical apparatus scheme is when after vacuum load switch separating brake, before current limiting fuse, close a floodgate to be grounded by three-station ground connection and on-load switch, rear end suspends or passes through an independently ground switch earthing, its complex structure, cost is high, and does not possess the energy that closes of ground connection.
Utility model content
The utility model, for problems of the prior art, provides a kind of fuse insulating cylinder.
Fuse insulating cylinder of the present utility model, comprise insulating part body and on cableport and load ports, described insulating part body comprises places the cavity of fuse and the shorting switch cavity of upper end thereof; One end of cavity is provided with front socket, and the other end is provided with rear socket; Cableport is located at the lower end of cavity, and one end of its first wire is connected with front socket, and the other end is connected with the first conductor; Load ports is located at the upper end of cavity, and its second conductor is connected with rear socket; In described shorting switch cavity, be provided with second fixed contact fixing with the second conductor and be fixed on the first fixed contact on insulating part body, moving contact is slidably arranged between the first fixed contact and the fingertip of the second fixed contact; The first fixed contact is connected with front socket by the second wire.
In order to realize the machine driving of moving contact, and ensure moving contact and extraneous insulating requirements, described moving contact is provided with insulated tension pole away from one end of the second fixed contact.
For effective insulation of shorting switch cavity electrified body, described shorting switch cavity is provided with seal cover.
For the installation that realizes fuse insulating cylinder is fixed, described insulating part body is provided with flange.
Fuse insulating cylinder of the present utility model, it is designed with the shorting switch of fuse front and back leading-out terminal, can pass through three-station ground connection, linkage shorting switch closes a floodgate, then carries out on-load switch and close a floodgate to combine and realize the current limiting fuse two ends with making capability and answer reliable ground.
The relative prior art of the utility model has the following advantages:
1, fuse insulating barrel structure of the present utility model, it is designed with the shorting switch of fuse front and back leading-out terminal, can pass through three-station ground connection, linkage shorting switch closes a floodgate, then carries out on-load switch and close a floodgate to combine and realize the current limiting fuse two ends with making capability and answer reliable ground.
2, the utility model is simple in structure, function is complete, volume is little, and reliability is high, and cost is low.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the end view of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, fuse insulating cylinder of the present utility model is described in further detail.
Fuse insulating cylinder as shown in Figure 1 and Figure 2, comprise insulating part body 19 and on cableport 1 and load ports 10, described insulating part body 19 comprises places the cavity 14 of fuse and the shorting switch cavity 5 of upper end thereof; One end of cavity 14 is provided with front socket 16, and the other end is provided with rear socket 12; Cableport 1 is located at the lower end of cavity 14, and one end of its first wire 17 is connected with front socket 16, and the other end is connected with the first conductor 18; Load ports 10 is located at the upper end of cavity 14, and its second conductor 11 is connected with rear socket 12; In described shorting switch cavity 5, be provided with second fixed contact 9 fixing with the second conductor 11 and be fixed on the first fixed contact 6 on insulating part body 19, moving contact 8 is slidably arranged between the first fixed contact 6 and the fingertip 7 of the second fixed contact 9; The first fixed contact 6 is connected with front socket 16 by the second wire 15; Moving contact 8 is provided with insulated tension pole 4 away from one end of the second fixed contact 9; Shorting switch cavity 5 is provided with seal cover 2; Insulating part body 19 is provided with flange 13.
Front socket 16, the first wire 17, second wire 15 of insulating part body 19 its interior forward end cast conductor fuses, three connects successively; Rear end cast conductor fuse rear socket 12 is connected with the second conductor 11; Fuse insulating barrel structure is fixed and is installed on cabinet body frame by the flange 13 on insulating part body 19, and rear end is fixed on major loop insulating part by load ports 10, ensures to install stable.
Fuse insulating cylinder forms combined electrical apparatus and uses together with tri-station isolating switch, vacuum load switch, in the time of normal use, shorting switch is gate-dividing state, be that insulated tension pole 4 drives moving contact 8 to be moved to the left, 8 of moving contacts connect by fingertip 7 is electric with the first fixed contact 6, at this moment moving contact 8 separates completely and forms air fracture with the second fixed contact 9, and electric current arrives major loop through fuse.When after fuse blows, need to change fuse time, operation tri-station isolating switch is to earthing position, now linkage shorting switch insulated tension pole 4 moves right, and it drives moving contact 8 to arrive closing position, and now the two ends of fuse link together by shorting switch, at this moment on-load switch closes a floodgate, just, smoothly by the two ends of fuse ground connection simultaneously, owing to adopting vacuum load switch, therefore closing ground connection, it can easily realize making capability.

Claims (4)

1. fuse insulating cylinder, comprise insulating part body (19) and on cableport (1) and load ports (10), it is characterized in that: described insulating part body (19) comprises places the cavity (14) of fuse and the shorting switch cavity (5) of upper end thereof; One end of cavity (14) is provided with front socket (16), and the other end is provided with rear socket (12); Cableport (1) is located at the lower end of cavity (14), and one end of its first wire (17) is connected with front socket (16), and the other end is connected with the first conductor (18); Load ports (10) is located at the upper end of cavity (14), and its second conductor (11) is connected with rear socket (12); In described shorting switch cavity (5), be provided with second fixed contact (9) fixing with the second conductor (11) and be fixed on the first fixed contact (6) on insulating part body (19), moving contact (8) is slidably arranged between the first fixed contact (6) and the fingertip (7) of the second fixed contact (9); The first fixed contact (6) is connected with front socket (16) by the second wire (15).
2. fuse insulating cylinder as claimed in claim 1, is characterized in that: described moving contact (8) is provided with insulated tension pole (4) away from one end of the second fixed contact (9).
3. fuse insulating cylinder as claimed in claim 1 or 2, is characterized in that: described shorting switch cavity (5) is provided with seal cover (2).
4. fuse insulating cylinder as claimed in claim 1 or 2, is characterized in that: described insulating part body (19) is provided with flange (13).
CN201320820993.8U 2013-12-15 2013-12-15 Fuse insulating cylinder Active CN203690238U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320820993.8U CN203690238U (en) 2013-12-15 2013-12-15 Fuse insulating cylinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320820993.8U CN203690238U (en) 2013-12-15 2013-12-15 Fuse insulating cylinder

Publications (1)

Publication Number Publication Date
CN203690238U true CN203690238U (en) 2014-07-02

Family

ID=51012110

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320820993.8U Active CN203690238U (en) 2013-12-15 2013-12-15 Fuse insulating cylinder

Country Status (1)

Country Link
CN (1) CN203690238U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103681148A (en) * 2013-12-15 2014-03-26 甘肃长城电工电器工程研究院有限公司 Fuse insulating cylinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103681148A (en) * 2013-12-15 2014-03-26 甘肃长城电工电器工程研究院有限公司 Fuse insulating cylinder

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