CN203103823U - High-voltage load switch cabinet - Google Patents

High-voltage load switch cabinet Download PDF

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Publication number
CN203103823U
CN203103823U CN 201320134862 CN201320134862U CN203103823U CN 203103823 U CN203103823 U CN 203103823U CN 201320134862 CN201320134862 CN 201320134862 CN 201320134862 U CN201320134862 U CN 201320134862U CN 203103823 U CN203103823 U CN 203103823U
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CN
China
Prior art keywords
insulator
cabinet
voltage load
underframe
load switch
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Application number
CN 201320134862
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Chinese (zh)
Inventor
焦振江
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Huayi Electric Apparatus Group
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Huayi Electric Apparatus Group
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Publication date
Application filed by Huayi Electric Apparatus Group filed Critical Huayi Electric Apparatus Group
Priority to CN 201320134862 priority Critical patent/CN203103823U/en
Application granted granted Critical
Publication of CN203103823U publication Critical patent/CN203103823U/en
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Abstract

The utility model relates to a high-voltage load switch cabinet which comprises a cabinet body and a fuse combined electric appliance arranged in the cabinet, wherein the fuse combined electric appliance further comprises a bottom frame, a wall insulator, an isolator and a current-limiting fuse; the bottom frame is provided with multiple connecting parts; two upper and lower clapboards are arranged on the bottom frame; the cabinet body is isolated into a feeder room and an overhauling room; the wall insulator penetrates through the bottom frame to realize communication between the feeder room and the overhauling room; the wall insulator comprises an insulating sleeve and a conductor arranged in the insulating sleeve; the isolator is arranged in the feeder room, one end of the isolator is connected with the wire inlet end of the high-voltage circuit in a breaking mode, and the other end of the isolator is connected with the conductor in the wall insulator; and the current-limiting fuse is arranged in the overhauling room, one end of the current-limiting fuse is connected with the conductor in the wall insulator, and the other end of the current-limiting fuse is connected with the wire outlet end through a vacuum arc-extinguishing chamber. When the isolator is opened, the overhauling room is not electrified, and when the maintainer enters the overhauling room, the potential safety hazard of possible electric shock is avoided.

Description

A kind of high voltage load switch cabinet
Technical field
The utility model relates to the switchgear technical field in the electrical power distribution system, is specifically related to a kind of high voltage load switch cabinet.
Background technology
The high voltage load switch cabinet is a kind of of loading switch cabinet, and fuse combined electric apparatus is installed in cabinet.Existing fuse combined electric apparatus comprises a metal framework, spring operating mechanism, close/open machine and at least one isolation switch, fuse, dropout transmission device, vacuum extinction and ground connection disconnecting link as the disclosed indoor 40.5KV vacuum load switch fuse combined electric apparatus of patent documentation CN201274253Y.Its fuse is contained in the back side of isolation switch, one end connects isolation switch, the other end is connected vacuum interrupter by the dropout transmission device with on/off switch mechanism, this isolation switch is fixed in this metal framework front together with fuse, vacuum interrupter vacantly by a plurality of insulated legs, the ground connection disconnecting link is located at the bottom of metal framework, and is connected with isolation switch by a link gear.Above-mentioned fuse combined electric apparatus is arranged in the cabinet forms the high voltage load switch cabinet as shown in Figure 1.
The high voltage load switch cabinet is divided into feeder line chamber and maintenance chamber by metal framework, and at maintenance indoor installation above-mentioned fuse combined electric apparatus, high-tension line passes and enters the maintenance chamber behind the feeder line chamber and link to each other with the isolation switch of fuse combined electric apparatus.When the maintainer high-tension line is carried out routine examination or high-tension line on when breaking down, the maintainer need enter the maintenance chamber and disconnect being connected between isolation switch and the high-tension line, make the high voltage load switch cabinet be in gate-dividing state, when maintenance finishes, the maintainer enters the maintenance chamber high-tension line is communicated with isolation switch, makes the high voltage load switch cabinet be in "on" position.
In the such scheme, because the electric components of fuse combined electric apparatus all is arranged at the same side of metal framework.Therefore, high-tension line must enter indoor can the connection with isolation switch of maintenance, in this case, even the high voltage load switch cabinet is in gate-dividing state, it still is electriferous state that high-tension line is exposed to the indoor terminals of maintenance, no matter the high voltage load switch cabinet is at combined floodgate or gate-dividing state, high-tension line is exposed to the indoor terminals of maintenance and is in electriferous state all the time, when if the maintainer enters the maintenance chamber, touch the live part that high-tension line is exposed to the indoor terminals of maintenance accidentally, will be subjected to high-voltage electric shock, jeopardize maintainer's personal safety.
The utility model content
To be solved in the utility model is high voltage load switch cabinet of the prior art because the terminals of high-tension line are indoor and be in electriferous state all the time in maintenance, make the maintainer when entering the maintenance chamber, be subjected to high-voltage electric shock easily, cause the technical problem of security incident, and then a kind of high voltage load switch cabinet with higher-security energy is provided.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of high voltage load switch cabinet comprises cabinet and is arranged at the interior fuse combined electric apparatus of cabinet, and described fuse combined electric apparatus further comprises:
Underframe is provided with a plurality of connecting portions, and described underframe also is provided with two dividing plates up and down, and described cabinet is isolated into feeder line chamber and maintenance chamber;
Wall insulator passes described underframe and realizes being communicated with between described feeder line chamber and the described maintenance chamber, and described wall insulator comprises insulating sleeve and is arranged at conductor in the described insulating sleeve;
Isolation switch, it is indoor to be arranged at described feeder line, but one end disjunction ground be connected with the end of incoming cables of high-tension line, the interior conductor of the other end and described wall insulator is connected;
Conductor in the current limiting fuse, one end and described wall insulator is connected, and the other end is connected with leading-out terminal by vacuum interrupter.
Conductor in the described insulating sleeve includes but not limited to copper cash, aluminum steel.
Also comprise the ground connection disconnecting link, an end is fixed on the described underframe, and the other end is fixedlyed connected with described current limiting fuse.
Also comprise post insulator, an end is fixed on the described underframe, and the other end is fixedlyed connected with described vacuum interrupter.
Technique scheme of the present utility model has the following advantages compared to existing technology:
High voltage load switch cabinet of the present utility model, be provided with fuse combined electric apparatus in the cabinet, described fuse combined electric apparatus comprises underframe and dividing plate, wall insulator, isolation switch and the current limiting fuse that switch cubicle is divided into feeder line chamber and maintenance chamber, described isolation switch, it is indoor to be arranged at described feeder line, but be connected to the disjunction of one end with the end of incoming cables of high-tension line, conductor in the other end and the described wall insulator is connected, when described isolation switch separating brake, described maintenance chamber is not charged, when the maintainer enters the maintenance chamber, avoid the technical problem that to get an electric shock.
Described high voltage load switch cabinet also comprises the ground connection disconnecting link, one end is fixed on the described underframe, the other end is fixedlyed connected with described current limiting fuse, as earth terminal, also comprise post insulator, an end is fixed on the described underframe, the other end is fixedlyed connected with described vacuum interrupter, make described vacuum interrupter and other elements separate certain distance, avoid being in contact with one another generation electric arc, cause high voltage load switch cabinet internal short-circuit.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail below, wherein:
Fig. 1 is the structural representation of the high voltage load switch cabinet of prior art;
Fig. 2 is the structural representation of high voltage load switch cabinet of the present utility model;
Reference numeral is expressed as among the figure: 1-isolation switch, 2-wall insulator, 3-end of incoming cables, 4-underframe, 5-ground connection disconnecting link, 6-leading-out terminal, 7-post insulator, 8-vacuum interrupter, 9-current limiting fuse.
Embodiment
Referring to Fig. 2, high voltage load switch cabinet of the present utility model comprises cabinet and is arranged at the interior fuse combined electric apparatus of cabinet, and described fuse combined electric apparatus further comprises:
Underframe 4 is provided with a plurality of connecting portions, and described underframe also is provided with two dividing plates up and down, and described cabinet is isolated into feeder line chamber and maintenance chamber;
Wall insulator 2 passes described underframe 4 and realizes being communicated with between described feeder line chamber and the described maintenance chamber, and described wall insulator 2 comprises insulating sleeve and is arranged at the interior conductor of described insulating sleeve;
Isolation switch 1, it is indoor to be arranged at described feeder line, but one end disjunction ground be connected with the end of incoming cables 3 of high-tension line, the other end and described wall insulator 2 interior conductors are connected;
Current limiting fuse 9, the one end is connected with conductor in the described wall insulator 2, and the other end passes through vacuum interrupter 8 and is connected with leading-out terminal 6;
Ground connection disconnecting link 5, one ends are fixed on the described underframe 1, and the other end is fixedlyed connected with described current limiting fuse 9;
Post insulator 7, one ends are fixed on the described underframe 4, and the other end is fixedlyed connected with described vacuum interrupter 8.
In the present embodiment, described cabinet is airtight cabinet, wherein is filled with inert gas, to prevent producing electric arc in the cabinet.The shell of described cabinet is provided with access door, when described high voltage load switch cabinet goes wrong or during other situations, the maintainer need enter the maintenance chamber and overhaul.Also be provided with guidance panel on the shell of described cabinet, when needs close a floodgate sub-switching operation, can on guidance panel, carry out.
Described underframe 4 is provided with a plurality of connecting portions, and described connecting portion can connect multiple different components and parts as required; Because the order of connection is on the underframe behind the installation components and parts, and dividing plate is installed again, for the ease of the installation of dividing plate, described dividing plate quantity is set to 2, during installation, with dividing plate by inserting underframe 4 up and down.
Conductor in the insulating sleeve of described wall insulator 2 includes but not limited to copper cash, aluminum steel.Be provided with conductor in the described insulating sleeve, make described wall insulator 2 both play insulating effect with described underframe 4, play the circuit communication effect again.
The isolation switch of prior art, it is indoor to be arranged at described maintenance usually, and when the isolation switch separating brake, the binding post of isolation switch top still is connected with the feeder line chamber, so still have electricity, after the maintainer overhauls the chamber, has the potential safety hazard of electric shock; It is indoor that isolation switch of the present utility model is arranged at described feeder line, when described isolation switch separating brake, described wall insulator 2 is disconnected mutually with the end of incoming cables 3 of described high-tension line, described wall insulator is not charged, its part that extends into described maintenance chamber is not charged yet, has reduced the potential safety hazard the when maintainer overhauls.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are in the protection range of the present utility model.

Claims (4)

1. a high voltage load switch cabinet comprises cabinet and is arranged at the interior fuse combined electric apparatus of cabinet, and it is characterized in that: described fuse combined electric apparatus further comprises:
Underframe (4) is provided with a plurality of connecting portions, and described underframe also is provided with two dividing plates up and down, and described cabinet is isolated into feeder line chamber and maintenance chamber;
Wall insulator (2) passes described underframe (4) and realizes being communicated with between described feeder line chamber and the described maintenance chamber, and described wall insulator (2) comprises insulating sleeve and is arranged at the interior conductor of described insulating sleeve;
Isolation switch (1), it is indoor to be arranged at described feeder line, but one end disjunction ground be connected with the end of incoming cables (3) of high-tension line, the interior conductor of the other end and described wall insulator (2) is connected;
Current limiting fuse (9), it is indoor to be arranged at described maintenance, and the one end is connected with conductor in the described wall insulator (2), and the other end passes through vacuum interrupter (8) and is connected with leading-out terminal (6).
2. high voltage load switch cabinet according to claim 1 is characterized in that, the conductor in the described insulating sleeve includes but not limited to copper cash, aluminum steel.
3. high voltage load switch cabinet according to claim 1 and 2 is characterized in that, also comprises ground connection disconnecting link (5), and an end is fixed on the described underframe (4), and the other end is fixedlyed connected with described current limiting fuse (9).
4. high voltage load switch cabinet according to claim 3 is characterized in that, also comprises post insulator (7), and an end is fixed on the described underframe (4), and the other end is fixedlyed connected with described vacuum interrupter (8).
CN 201320134862 2013-03-22 2013-03-22 High-voltage load switch cabinet Active CN203103823U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320134862 CN203103823U (en) 2013-03-22 2013-03-22 High-voltage load switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320134862 CN203103823U (en) 2013-03-22 2013-03-22 High-voltage load switch cabinet

Publications (1)

Publication Number Publication Date
CN203103823U true CN203103823U (en) 2013-07-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320134862 Active CN203103823U (en) 2013-03-22 2013-03-22 High-voltage load switch cabinet

Country Status (1)

Country Link
CN (1) CN203103823U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106786005A (en) * 2016-11-14 2017-05-31 北京双杰电气股份有限公司 A kind of high-tension switch cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106786005A (en) * 2016-11-14 2017-05-31 北京双杰电气股份有限公司 A kind of high-tension switch cabinet

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