CN207939086U - A kind of gas-filling cabinet - Google Patents

Abstract

The utility model discloses a kind of gas-filling cabinet, disconnecting switch handler including control room and in control room, for rotating disconnecting switch and the earthing switch handler for rotating earthing switch, and the breaker below control room and cable vault, the ammeter for current measurement is equipped in control room, disengaging cable is equipped in cable vault, gas-filling cabinet further includes the current transformer for being set in the cable vault, being arranged in punching；The current transformer includes cylindrical shell, the magnetizer in shell and several semi-circular shape insulation sleeves on shell endoporus, and case surface is equipped with for the first connecting terminal of protection circuit and is electrically connected with ammeter, the second connecting terminal for measuring cable under test electric current.The utility model can reduce the material cost of gas-filling cabinet.In addition, being in hollow cylindrical since current transformer is arranged the utility model, it can effectively reduce its volume and weight, be easily installed.

Description

A kind of gas-filling cabinet

Technical field

The utility model is related to power distribution cabinet fields, and in particular to a kind of gas-filling cabinet.

Background technology

Gas-filling cabinet is a kind of high-tension switch gear, main function be generated electricity in electric system, transmitted electricity, distribution and electricity In energy transfer process, electrical equipment is opened and closed, controlled and protected.To be monitored to the line current in gas-filling cabinet, usually Can a current transformer is set in cable vault with detect disengaging cable size of current, and be shown on corresponding ammeter with It is obtained for staff.Traditional current transformer is in solid setting, and it is larger that there are volume and weights, and waste of material is more, Material cost so as to cause gas-filling cabinet entirety is higher.

Utility model content

The main purpose of the utility model is that a kind of gas-filling cabinet is proposed, to solve existing gas-filling cabinet integral material cost Higher technical problem.

In order to solve the above technical problems, the utility model proposes a kind of gas-filling cabinet, including control room and it is set to the instrument Indoor, the disconnecting switch handler for rotating disconnecting switch and the earthing switch handler for rotating earthing switch, and Breaker below the control room and cable vault are equipped with the ammeter for current measurement in the control room, described Disengaging cable is equipped in cable vault, the gas-filling cabinet further includes the Current Mutual Inductance for being set in the cable vault, being arranged in punching Device；The current transformer includes cylindrical shell, the magnetizer in the shell and on the shell endoporus Several semi-circular shape insulation sleeves, the case surface be equipped with for protection circuit the first connecting terminal and with the ammeter It is electrically connected, the second connecting terminal for measuring cable under test electric current.

Preferably, the gas-filling cabinet further includes mechanical interlocks, and the mechanical interlocks includes operation panel and sliding Baffle offers isolator operation corresponding with the disconnecting switch handler, earthing switch handler on the operation panel Hole and earthing switch handle hole；The isolator operation hole and earthing switch handle hole are respectively arranged below with the of vertical direction One sliding slot and second sliding slot are equipped in the first sliding groove and are sequentially connected with the disconnecting switch handler and can be along described The first drive link that the first sliding groove moves up and down, is equipped in the second sliding slot and earthing switch handler transmission connects It connects and can be along the second drive link that the second sliding slot moves up and down；The slide damper is set on the inside of the operation panel and position Between first drive link and second drive link, the width of the slide damper is more than the isolator operation hole The distance between earthing switch handle hole；When the disconnecting switch is in "on" position, first drive link move up so that The slide damper blocks the earthing switch handle hole；When the earthing switch is in "on" position, second drive link It moves up so that the slide damper blocks the isolator operation hole.

Preferably, the mechanical interlocks further includes disconnecting switch pressure holding component, and the disconnecting switch presses component packet The first pull rod for including the first babinet and being arranged through first babinet, first pull rod are connect with first drive link, The first elastic component is equipped between first drive link and the bottom plate of first babinet.

Preferably, the mechanical interlocks further includes earthing switch pressure holding component, and the earthing switch presses component packet The second pull rod for including the second babinet and being arranged through second babinet, second pull rod are connect with second drive link, The second elastic component is equipped between second drive link and the bottom plate of second babinet.

Preferably, the disconnecting switch state instruction piece being connect with first drive link is respectively equipped on the operation panel, And the earthing switch state instruction piece being connect with second drive link.

Preferably, the gas-filling cabinet further includes the first interlocking machine for the breaker and the disconnecting switch on/off switch Structure, first interlocking mechanism include the fixing bracket being set to above first babinet, run through the fixing bracket and first Third pull rod, linkage board and the transmission shaft of babinet setting；The transmission shaft is connect with the breaker, described linkage board one end with The transmission axis connection, the other end are hinged with third pull rod lower end；Third pull rod upper end is connected with for blocking It states the first of isolator operation hole and turns plate, the fixing bracket and described first are equipped with third elastic component between turning plate；It is described When breaker open operation, described first, which turns plate, rises under the action of the third elastic component to expose the disconnecting switch rotation Handle.

Preferably, the gas-filling cabinet further includes the second interlocking machine for the breaker and the earthing switch on/off switch Structure, second interlocking mechanism include the four-pull-rod through second babinet setting, the upper end connection of the four-pull-rod It is useful for blocking the second of the earthing switch handle hole and turns plate, described second turns and be equipped with the 4th between plate and second babinet Elastic component；Four-pull-rod lower end is equipped with pressing down section, and when the pressing down section pushes, plate drop-down is turned to expose by described second State earthing switch handler.

Preferably, first elastic component, the second elastic component, third elastic component and the 4th elastic component are compressed spring.

Preferably, the gas-filling cabinet further include be set to the gas-filling cabinet below control door, the control door equipped with The compatible protrusion of the pressing down section.

Technical solutions of the utility model can effectively save material by being in hollow cylindrical by current transformer setting Material, to reduce the integral material cost of gas-filling cabinet.In addition, the weight of the current transformer of the utility model is mitigated, make Staff is more laborsaving in installation and while safeguarding.

Description of the drawings

Fig. 1 is the structural schematic diagram of current transformer in the utility model gas-filling cabinet；

Fig. 2 is the structural schematic diagram of one embodiment of the utility model gas-filling cabinet；

Fig. 3 is the structural schematic diagram of one embodiment of mechanical interlocks of the utility model gas-filling cabinet；

Fig. 4 is the structural schematic diagram of another embodiment of mechanical interlocks of the utility model gas-filling cabinet；

Fig. 5 is the structural schematic diagram of the another embodiment of mechanical interlocks of the utility model gas-filling cabinet；

Fig. 6 is the structural schematic diagram of the mechanical interlocks another embodiment of the utility model gas-filling cabinet；

The structural schematic diagram of another embodiment of Fig. 7 the utility model gas-filling cabinets.

Drawing reference numeral explanation：

Specific implementation mode

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model Limitation, be based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

As shown in Fig. 1 to 7, the utility model proposes gas-filling cabinet, including control room 100 and in the control room 100, use Disconnecting switch handler 110 in rotation disconnecting switch and earthing switch handler 120, Yi Jishe for rotating earthing switch Breaker 130 in 100 lower section of control room and cable vault 140, the interior ammeter (figure being equipped with for current measurement in control room 100 Do not show), disengaging cable is equipped in cable vault 140, gas-filling cabinet further includes being set in cable vault 140 and being electrically connected with ammeter Current transformer 150；Current transformer 150 is arranged in punching, including cylindrical shell 151, leading in shell 151 Magnet and several semi-circular shape insulation sleeves 152 on 151 endoporus of shell, 151 surface of shell are equipped with for protection circuit First connecting terminal 153 and with the ammeter be electrically connected, the second connecting terminal for measuring cable under test electric current 154。

In the utility model, magnetizer of the higher silicon steel sheet of magnetic conductivity as electromagnetic induction is selected, is adopted in shell 151 It is poured into a mould with fixed magnetizer with epoxide resin vacuum.Be additionally provided with iron core in shell 151, and respectively with the first connecting terminal 153 and second connecting terminal 154 connect first winding and secondary winding.When current transformer 150 works, it would be desirable to measure electricity The cable under test of stream passes through the endoporus of straight-through current transformer, at this point, magnetizer and winding will produce electromagnetic induction, realizes and becomes Stream, to realize the measurement of electric current and be shown on the ammeter of control room 100, so that staff watches.And including being arranged Insulation sleeve 152 on hole can play the role of, to cable insulation to be measured and electrical isolation, ensureing equipment and the peace of staff Entirely.

Technical solutions of the utility model can be saved effectively by being in hollow cylindrical by the setting of current transformer 150 Material, to reduce the integral material cost of gas-filling cabinet.In addition, the weight of the current transformer 150 of the utility model is subtracted Gently so that staff is more laborsaving in installation and while safeguarding.

In the utility model embodiment, gas-filling cabinet further includes mechanical interlocks, and mechanical interlocks includes operation panel 200 and slide damper 300, it offers on operation panel 200 corresponding with disconnecting switch handler 110, earthing switch handler 120 Isolator operation hole 210 and earthing switch handle hole 220；220 lower section of isolator operation hole 210 and earthing switch handle hole It is respectively equipped with the first sliding groove 230 and second sliding slot 240 of vertical direction, is equipped in the first sliding groove 230 and is rotated with disconnecting switch Handle 110 is sequentially connected and the first drive link 231 that can be moved up and down along the first sliding groove 230, be equipped in second sliding slot 240 with The second drive link 241 that earthing switch handler 120 is sequentially connected and can be moved up and down along second sliding slot 240；Slide damper 300 are set on the inside of 200 plates of operation and between the first drive link 231 and the second drive link 241, the width of slide damper 300 More than the distance between isolator operation hole 210 and earthing switch handle hole 220；When disconnecting switch is in "on" position, the One drive link 231 moves up so that slide damper 300 blocks earthing switch handle hole 220；When earthing switch is in "on" position, the Two drive links 241 move up so that slide damper 300 blocks isolator operation hole 210.

In one preferred embodiment of the utility model, mechanical interlocks further includes disconnecting switch pressure holding component 400, isolation Switch pressure holding component 400 includes the first babinet 410 and the first pull rod 420 through the setting of the first babinet 410, the first pull rod 420 It is connect with the first drive link 231, the first elastic component 430 is equipped between the first drive link 231 and the bottom plate of the first babinet 410.It fills When gas holder normal operation, disconnecting switch is in "on" position, and the first drive link moves up so that slide damper 300 blocks earthing switch Handle hole 220, and earthing switch is in gate-dividing state.In the present embodiment, it is convex that 110 lower section of disconnecting switch handler is equipped with an isolation Wheel, when disconnecting switch is in "on" position, cam is not contacted with disconnecting switch handler 110；Disconnecting switch is in gate-dividing state When, cam is contacted with disconnecting switch handler 110.If the current transformer 150 in cable vault 140, which breaks down, to be powered off Maintenance need to move slide damper 300 to expose isolator operation hole 210 towards 220 direction of earthing switch handle hole；At this point, Staff's engagement tool rotates disconnecting switch handler 110, so that the pressure holding of isolation cam is in 420 upper end of the first pull rod, first Pull rod 420 pushes under the action of the first elastic component 430, and drives under the first drive link 231 being connect with the first pull rod 420 It moves.It, can operational grounding switch after disconnecting switch separating brake.It so, it is possible the effectively safety of guarantee service personnel and equipment.

In another preferred embodiment of the utility model, mechanical interlocks further includes earthing switch pressure holding component 500, is connect Ground switch pressure holding component 500 includes the second babinet 510 and the second pull rod 520 through the setting of the second babinet 510, the second pull rod 520 connect with the second drive link 241, and the second elastic component 530 is equipped between the second drive link 241 and the bottom plate of the second babinet 510. In the present embodiment, 120 lower section of earthing switch handler is also equipped with a ground connection cam.After the completion of gas-filling cabinet maintenance, staff needs Slide damper 300 is moved towards 210 direction of isolator operation hole to expose earthing switch handle hole 220；At this point, staff Engagement tool rotates earthing switch handler 120, so that ground connection cam pressure holding is in 520 upper end of the second pull rod, the second pull rod 520 exists It is pushed under the action of second elastic component 530, and the second drive link 241 being connect with the second pull rod 520 is driven to move down.Earthing switch It, can disconnecting switch operation after separating brake.It so, it is possible the effectively safety of guarantee service personnel and equipment.

In the utility model another embodiment, it is respectively equipped on operation panel 200 and connect with the first drive link 231 Disconnecting switch state instruction piece 250, and the earthing switch state instruction piece 260 that is connect with the second drive link 241.The present embodiment In, " dividing ", " conjunction " mark are both provided on disconnecting switch state instruction piece 250 and earthing switch state instruction piece 260, work people Member after rotation disconnecting switch handler 110 or earthing switch handler 120, open by disconnecting switch state instruction piece 250 and ground connection Off status indicating piece 260 can show disconnecting switch and the corresponding opening and closing state of earthing switch.

In the another preferred embodiment of the utility model, the mechanical interlocks of gas-filling cabinet further includes being used for breaker 130 With the first interlocking mechanism of disconnecting switch on/off switch, the first interlocking mechanism includes the fixing bracket for being set to 410 top of the first babinet 600, third pull rod 610, linkage board 620 and the transmission shaft 630 being arranged through fixing bracket 600 and the first babinet 410；Transmission shaft 630 connect with breaker 130, and 620 one end of linkage board is connect with transmission shaft 630, and the other end is hinged with 610 lower end of third pull rod； 610 upper end of third pull rod is connected with turns plate 640, fixing bracket 600 and first for blocking the first of isolator operation hole 210 It turns and is equipped with third elastic component 650 between plate 640；When 130 separating brake of breaker, first turns effect of the plate 640 in third elastic component 650 Lower rising is to expose disconnecting switch handler 110.After the completion of current transformer 150 overhauls, the breaker of gas-filling cabinet need to be carried out Closing operation；When breaker closing, linkage board 620 is driven to pull down by transmission shaft 630, linkage board 620 then drives hinged with it The drop-down of third pull rod 610 turn plate 640 with connect 610 upper end of third pull rod first and decline, thus by isolator operation Hole 210 is blocked, and avoids staff when breaker 130 is in "on" position, and rotation disconnecting switch handler 110 is pacified Full accident.And when breaker open operation, third pull rod 610 rise certain altitude under the action of third elastic component 650 with expose every Leave close handle hole 210, for staff to disconnecting switch carry out sub-switching operation, with to the current transformer to break down into Row service work.

In the another preferred embodiment of the utility model, the mechanical interlocks of gas-filling cabinet further includes being used for breaker 130 With the second interlocking mechanism of earthing switch on/off switch, the second interlocking mechanism includes the four-pull-rod through the setting of the second babinet 510 700, the upper end of four-pull-rod 700 is connected with turns plate 710 for blocking the second of earthing switch handle hole 220, and second turns plate 710 The 4th elastic component 720 is equipped between the second babinet 510；700 lower end of four-pull-rod is equipped with pressing down section 730, and pressing down section 730 pushes When, the drop-down of plate 710 is turned to expose earthing switch handler 120 by second.

In the above-described embodiments, gas-filling cabinet further includes the control door 800 being set to below, and control door 800 is equipped with under 730 compatible protrusion of splenium.In the present embodiment, when breaker 130 control door 800 in the open state, protrusion under Splenium 730 does not contact, and second, which turns plate 710, blocks earthing switch handle hole 220, and staff can not rotate earthing switch handler 120；When controlling door 800 in the closure state, protrusion coordinates with pressing down section, and four-pull-rod 700 is pulled down and is opened with exposing ground connection Handle hole 220 is closed, and then rotates earthing switch handler 120 to complete the sub-switching operation of earthing switch.It so, it is possible effective When preventing staff from being overhauled to the current transformer 150 in cable vault 140, under the situation for being not turned off cable chamber door, It closes breaker and sub-switching operation is carried out to earthing switch, to avoid the generation of safety accident.

Above-described is only the part of the utility model or preferred embodiment, and either word or attached drawing all cannot be because The range of this limitation the utility model protection utilizes the utility model under every design with one entirety of the utility model Equivalent structure transformation made by specification and accompanying drawing content, or directly/be used in other related technical areas indirectly and include In the range of the utility model is protected.

Claims (9)

1. a kind of gas-filling cabinet, including control room and the disconnecting switch rotation in the control room, for rotating disconnecting switch Handle and earthing switch handler for rotating earthing switch, and the breaker below the control room and cable vault, It is equipped with the ammeter for current measurement in the control room, disengaging cable is equipped in the cable vault, which is characterized in that described Gas-filling cabinet further includes the current transformer for being set in the cable vault, being arranged in punching, and the current transformer includes cylinder Shape shell, the magnetizer in the shell and several semi-circular shape insulation sleeves on the shell endoporus, it is described outer Shell surface is equipped with for the first connecting terminal of protection circuit and is electrically connected, with the ammeter for measuring cable under test Second connecting terminal of electric current.

2. gas-filling cabinet as described in claim 1, which is characterized in that further include mechanical interlocks, the mechanical interlocks Including operation panel and slide damper, offered on the operation panel and the disconnecting switch handler, earthing switch handler pair The isolator operation hole answered and earthing switch handle hole；Below the isolator operation hole and earthing switch handle hole respectively The first sliding groove equipped with vertical direction and second sliding slot, are equipped in the first sliding groove and the disconnecting switch handler is driven It connects and can be equipped in the first drive link that the first sliding groove moves up and down, the second sliding slot and opened with the ground connection Pass handler is sequentially connected and can be along the second drive link that the second sliding slot moves up and down；The slide damper is set to described On the inside of operation panel and between first drive link and second drive link, the width of the slide damper is more than institute State the distance between isolator operation hole and earthing switch handle hole；When the disconnecting switch is in "on" position, described One drive link moves up so that the slide damper blocks the earthing switch handle hole；The earthing switch is in "on" position When, second drive link moves up so that the slide damper blocks the isolator operation hole.

3. gas-filling cabinet as claimed in claim 2, which is characterized in that the mechanical interlocks further includes disconnecting switch pressure holding group Part, disconnecting switch pressure holding component include the first babinet and the first pull rod for being arranged through first babinet, and described first Pull rod is connect with first drive link, and the first elasticity is equipped between first drive link and the bottom plate of first babinet Part.

4. gas-filling cabinet as claimed in claim 3, which is characterized in that the mechanical interlocks further includes earthing switch pressure holding group Part, earthing switch pressure holding component include the second babinet and the second pull rod for being arranged through second babinet, and described second Pull rod is connect with second drive link, and the second elasticity is equipped between second drive link and the bottom plate of second babinet Part.

5. gas-filling cabinet as claimed in claim 4, which is characterized in that be respectively equipped on the operation panel and first drive link The disconnecting switch state instruction piece of connection, and the earthing switch state instruction piece that is connect with second drive link.

6. gas-filling cabinet as claimed in claim 5, which is characterized in that further include for the breaker with it is described keep apart close First interlocking mechanism of separating brake, first interlocking mechanism include the fixing bracket being set to above first babinet, run through institute State third pull rod, linkage board and the transmission shaft of fixing bracket and the setting of the first babinet；The transmission shaft is connect with the breaker, Described linkage board one end and the transmission axis connection, the other end are hinged with third pull rod lower end；Third pull rod upper end It is connected with and turns plate for blocking the first of the isolator operation hole, the fixing bracket and described first are equipped between turning plate Third elastic component；When the breaker open operation, described first, which turns plate, rises under the action of the third elastic component to expose State disconnecting switch handler.

7. gas-filling cabinet as claimed in claim 6, which is characterized in that further include being closed for the breaker and the earthing switch Second interlocking mechanism of separating brake, second interlocking mechanism include the four-pull-rod through second babinet setting, and described the The upper end of four-pull-rod is connected with turns plate for blocking the second of the earthing switch handle hole, and described second turns plate and described second The 4th elastic component is equipped between babinet；Four-pull-rod lower end is equipped with pressing down section, when the pressing down section pushes, by described second Plate drop-down is turned to expose the earthing switch handler.

8. gas-filling cabinet as claimed in claim 7, which is characterized in that first elastic component, the second elastic component, third elastic component And the 4th elastic component be compressed spring.

9. gas-filling cabinet as claimed in claim 8, which is characterized in that further include the control door being set to below the gas-filling cabinet, institute It states control door and is equipped with protrusion compatible with the pressing down section.