CN206712317U - A kind of medium pressure gas insulation looped network bus section cabinet - Google Patents

A kind of medium pressure gas insulation looped network bus section cabinet Download PDF

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Publication number
CN206712317U
CN206712317U CN201720402324.7U CN201720402324U CN206712317U CN 206712317 U CN206712317 U CN 206712317U CN 201720402324 U CN201720402324 U CN 201720402324U CN 206712317 U CN206712317 U CN 206712317U
Authority
CN
China
Prior art keywords
room
bus
gas tank
bar
mechanism chamber
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
CN201720402324.7U
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Chinese (zh)
Inventor
刘韶华
李章云
邱宇
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.)
Shandong Electrical Distribution Network Technology Development Co Ltd
Jiangsu Yinhe Electric Co Ltd
Beihai Galaxy Switch Devices Co Ltd
Original Assignee
Shandong Electrical Distribution Network Technology Development Co Ltd
Jiangsu Yinhe Electric Co Ltd
Beihai Galaxy Switch Devices 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 Shandong Electrical Distribution Network Technology Development Co Ltd, Jiangsu Yinhe Electric Co Ltd, Beihai Galaxy Switch Devices Co Ltd filed Critical Shandong Electrical Distribution Network Technology Development Co Ltd
Priority to CN201720402324.7U priority Critical patent/CN206712317U/en
Application granted granted Critical
Publication of CN206712317U publication Critical patent/CN206712317U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of medium pressure gas insulation looped network bus section cabinet, including gas tank room, mechanism chamber, bus-bar room, pressure release passage, secondary component room and mother device, it is characterised in that:Gas tank room is made up of switch gear room and bus rise room, the common box structure of integration, has breaker and disconnecting switch in switch gear room, breaker is provided with rear outlet dead ring and upper outlet dead ring;There are bus and wall bushing in bus rise interior, has dividing plate among two air chambers, the lower partition had line window;Mother block is arranged at top at left and right sides of gas tank room, has grading shield in mother block;Bus-bar room and mechanism chamber are provided with before gas tank room;Gas tank room bottom is provided with two pressure release passages;Secondary component room is provided with below mechanism chamber, bus-bar room, dividing plate is provided between pressure release passage.The utility model has simple in construction, securely and reliably, easy to operate, low cost and other advantages.Bus-bar room, mechanism chamber and secondary component room are all located in front of the utility model, are advantageous to the maintenance and maintenance of equipment after coming into operation.

Description

A kind of medium pressure gas insulation looped network bus section cabinet
Technical field
It the utility model is related to power distribution network medium voltage switchgear equipment, especially medium pressure gas insulation looped network bus section cabinet.The back of the body Scape technology
Next pole equipment switching station of transformer station is generally provided with two-way inlet wire, two sections of buses and multichannel feeder line, two sections of mothers Bus breaking cabinet is provided between line, bus breaking cabinet effect is contact and cut-offs two sections of buses.Two sections of buses are under normal circumstances The not disconnection of UNICOM, when one section of bus has a power failure, bus breaking cabinet just comes into operation, the normal power supply of guarantee power failure bus, from And substantially increase power supply reliability.This scheme of electric power realized using KYN intermediate switchgear cabinets more, such as publication number CN105429040 A are disclosed including bus-bar room, breaker chamber, cable vault and low-pressure chamber.Bus-bar room includes two with public The three-station at bus end, respectively it is segmented three-station and feeder line three-station.Opened by block switch and feeder line Main bus-bar fragmentation feature and branch feeder function are realized respectively in pass.It is mutual that breaker chamber includes breaker, current transformer and voltage Sensor, every extremely multiple cable sockets and an arrester socket and connecting copper bar.But this big cost of switchgear volume is high Etc. reason, Urban Net Construction transformation is not appropriate for;And all-insulation inflation looped network cabinet is because it is with flexible and changeable distribution system, function list The advantages that combined and spliced simple, small volume of member and low cost, is used widely.Switching station is this out of doors for inflatable ring main unit In typical distribution scheme using it is the most general just.
The content of the invention
In order to realize the connection of two sections of buses in inflatable ring main unit switching station scheme of electric power, the utility model provides a kind of All-insulation inflation looped network bus section cabinet.
The utility model is realized by following technical proposals:A kind of medium pressure gas insulation looped network bus section cabinet, Including gas tank room, mechanism chamber, bus-bar room, pressure release passage, secondary component room and mother device.It is characterized in that gas tank room is by switch gear room Formed with bus rise room, the common box structure of integration, there is breaker and disconnecting switch in switch gear room, there is bus bus rise interior And wall bushing, there is dividing plate among two air chambers, the lower partition had line window;Top is equiped with mother at left and right sides of gas tank room Seat, mother block are provided with grading shield;Bus-bar room and mechanism chamber two parts are provided with before gas tank room, current transformer is provided with bus-bar room And air gauge, bus use all insulation flexible bus;Gas tank room bottom is provided with two pressure release passages;Below mechanism chamber, bus-bar room Provided with secondary component room, it is provided with dividing plate between pressure release passage.
Switch gear room top is breaker, and centre is disconnecting switch.Disconnecting switch uses two station double break mouth structures, switch gear room Front is provided with disconnecting switch state observation window.Switch gear room's upper portion side wall has mother block, is conductive copper piece among mother block, mother block Both ends are the insulating barriers of bowl structure, also have grading shield in the insulating barrier on the inside of gas tank, the conduction among grading shield and mother block Copper piece is connected.Grading shield uses metallic netted structural.The insulating barrier of mother block uses epoxide resin material, by Vacuum Mixture, Automatic pressure gelation process is solidified togather with conductive copper piece and grading shield.Mother block uses the insulating barrier of bowl structure, increase Alternate and electric insulation distance over the ground, improves electrical security.The use of grading shield, solve copper bar and connect with mother block The problem of place's electric field is uneven is connect, eliminates the potential hazard that metallic bur power, bolt etc. are brought.
Compact-sized due to gas tank small volume, in order to be interfered when solving the problems, such as current transformer installation, three-phase is worn Wall sleeve is arranged diagonally downward, and current transformer is in staggered distribution.Current transformer is fixed on support, and support is welded on gas tank table On face.
Bus one is accessed in gas tank room by mother device from the left side mother block of bus section cabinet;Change and wear by wire Wall sleeve draws gas tank room to above bus-bar room;Flexible bus passes through straight-through current transformer, and gas is introduced by wall bushing Chamber, disconnecting switch and breaker are being sealed in, the mother block on the right side of gas tank accesses bus two by mother device.On flexible bus The current transformer of installing, it provides the current data of bus one or bus two for protective relaying device, when bus one or bus Two because of fault outage, and when bus section cabinet switch combined floodgate comes into operation, and plays and protect bus one or bus two for some reason not to hinder to stop Electricity and influence normal bussed supply.
The beneficial effects of the utility model are:The utility model provides easily for the contact and disjunction of two sections of buses Connecting mode;Electrification in high voltage part all devices are inside sealing gas tank, therefore the utility model is not influenceed by external rings mirror; Bus rise room solves the problems, such as that between gas-insulated ring network bus section cabinet and other cabinet types and cabinet standardizes;Bus-bar room Design facilitates the installation, maintenance, replacing of current transformer;It is new that bus-bar room, mechanism chamber and secondary component room are all located at this practicality In front of type, be advantageous to the maintenance and maintenance of equipment after coming into operation.
Brief description of the drawings
Fig. 1:Switching station's scheme of electric power primary system figure.
Fig. 2:Bus section cabinet front view.
Fig. 3:Bus section cabinet left view.
Fig. 4:Bus section cabinet rearview.
Fig. 5:Mother block partial enlarged drawing.
In figure:1st, gas tank room, 1.1, air gauge, 1.2, wall bushing, 1.3, disconnecting switch, 1.4, breaker, 1.41, after Outlet dead ring, 1.42, upper outlet dead ring, 1.5, mother block, 1.51, insulating barrier, 1.52, grading shield, 1.6, wall bushing, 1.7th, pressure release window, 1.8, drying box, 2, bus-bar room, 2.1, flexible bus, 2.2, current transformer, 2.3, support, 3, pressure release leads to Road, 4, secondary component room, 4.1, protective relaying device, 4.2, control button, 5, mechanism chamber, 5.1, observation window, 5.2, the lower couplet on the door Lock handle, 5.3, isolator operation hole, 6, mother device.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is switching station's scheme of electric power primary system figure, and inlet wire all the way and multichannel are designed with bus one and bus two Feeder line, it is cascaded using the utility model between two sections of buses, its effect is contact and cut-offs two sections of buses.Positive reason The utility model is to disconnect under condition, and when one section of bus has a power failure, the utility model switch, which just closes, comes into operation, and ensures to have a power failure The normal power supply of bus, so as to substantially increase power supply reliability.
The utility model is largely divided into six parts:Gas tank room 1, bus-bar room 2, pressure release passage 3, secondary component room 4, mechanism chamber 5, mother device 6.
Fig. 2 is the front view of bus section cabinet, and top is bus-bar room 2 and mechanism chamber 5, and bottom is secondary component room.It is secondary There is dividing plate element chamber point or so two parts, centre.The secondary component room on the left side is furnished with protective relaying device 4.1, the right it is secondary Element chamber is furnished with control button 4.2.The panel of mechanism chamber 5 is provided with disconnecting switch cutter head position observation window 5.1, is carried positioned at lower gate interlock The lower left of hand 5.2.The one end of observation window 5.1 is fixed on gas tank room 1, the other end through mechanism chamber isolator operation hole position in The upper right side of lower gate interlock handle 5.2.The upper panel of mechanism chamber 5 is additionally provided with breaker open operation handle hole, closing operation hole, energy storage Handle hole and energy storage indicator hole.The upper left corner of bus-bar room 2 is provided with air gauge 1.1.
Fig. 3 is the left view of the utility model bus section cabinet, for the ease of observation, has done broken section.Fig. 4 is this reality With the rearview of novel bus segmentation cabinet, for the ease of observation, back plate is eliminated.It can be seen from Fig. 4 and Fig. 3 gas tank room 1 by Switch gear room and bus rise room form, the common box structure of integration, have breaker 1.4 and disconnecting switch 1.3, bus liter in switch gear room There are A, B, C three-phase bus and wall bushing 1.2 in high interior, there is dividing plate among two air chambers, and the lower partition had line window;Gas tank room Left and right sides top is equiped with mother block 1.5.Bus raises the design of room, realizes the spelling cabinet of bus section cabinet and other cabinets The standardization of connection, it is easy to the expansion and improvement of system.Breaker 1.4 is provided with rear outlet dead ring 1.41 and upper outlet dead ring 1.42.Direction is provided with breach to outlet dead ring 1.41 down afterwards, is easy to feeder line to be connected with leading-out terminal after breaker.Upper outlet insulation Direction is provided with breach to ring 1.42 backwards, is easy to the connection of bus and upper leading-out terminal.The leading-out terminal of breaker 1.4 adds dead ring, Alternate insulation distance is added, improves electrical safety performance.As shown in figure 5, mother block 1.5 is provided with the insulation of bowl structure Layer 1.51, is internally provided with grading shield 1.52;Conductive copper piece among mother block 1.5, grading shield 1.52 among mother block 1.5 Conductive copper piece be connected.Grading shield 1.52 uses metallic netted structural, and width of mesh is in 1-2 millimeters.The insulating barrier of mother block 1.5 1.51 use epoxide resin material, and by Vacuum Mixture, automatic pressure gelation process is solidificated in one with conductive copper piece and grading shield Rise.Mother block 1.5 is added alternate and over the ground using the insulating barrier of bowl structure(Gas tank wall)Electric insulation distance, improve Electrical security.The use of grading shield 1.52, solve the problems, such as that copper bar and mother block junction electric field are uneven, eliminate The potential hazard that metallic bur power is brought.Gas tank is processed into the casing of sealing using 3mm stainless steel plates by laser welding technology.
As shown in figure 4, two air chamber bottoms of gas tank room 1 are provided with pressure release window 1.7 and drying box 1.8.The bottom of pressure release window 1.7 It is pressure release passage 3.The fire-retardant dividing plate of metal is provided between pressure release passage 3 and secondary component room 4.Pressure release window and pressure release passage are set Meter, solves safety problem during equipment fault.
As shown in figure 3, connected between bus-bar room 2 and gas tank room 1 by wall bushing 1.2.Flexible mother is provided with bus-bar room Line 2.1, current transformer 2.2, support 2.3.Support 2.3 is welded on the outer surface of gas tank room 1, and current transformer 2.2 is fixed on On support 2.3, flexible bus 2.1 rushes across current transformer 2.2.As shown in Figure 3,4, it is compact-sized due to gas tank small volume, be Solve the problems, such as to interfere during current transformer installation, three-phase wall bushing is arranged diagonally downward, threephase current transformer Also it is in staggered distribution diagonally downward.
Bus one is accessed in gas tank room 1 by mother device 6 from the left side mother block 1.5 of bus section cabinet;Turned by wire Change and draw gas tank room 1 to above bus-bar room 2 with wall bushing 1.2;Flexible bus 2.1 passes through straight-through current transformer 2.2, warp Cross wall bushing 1.2 and lead back gas tank room 1, sealing in disconnecting switch 1.3 and breaker 1.4, the mother block 1.5 on the right side of gas tank is logical Cross mother device 6 and access bus two.The current transformer 2.2 installed on flexible bus, it provides bus one for protective relaying device Or the current data of bus two, when bus one or bus two are because of fault outage, and bus section cabinet disconnecting switch 1.3 and breaker When 1.4 combined floodgates come into operation, recover the power supply of fault-free section.
The utility model has simple in construction, securely and reliably, easy to operate, low cost and other advantages.Bus-bar room, mechanism chamber and two Item room is all located in front of the utility model, is advantageous to the maintenance and maintenance of equipment after coming into operation.

Claims (4)

  1. The looped network bus section cabinet 1. a kind of medium pressure gas insulate, including gas tank room(1), mechanism chamber(5), bus-bar room(2), pressure release leads to Road, secondary component room(4)And mother device(6), it is characterised in that:Gas tank room(1)It is made up of switch gear room and bus rise room, one Change box structure altogether, have breaker in switch gear room(1.4)And disconnecting switch(1.3), there are bus and wall bushing in bus rise interior (1.6), have dividing plate among two air chambers, the lower partition had line window;Mother block is arranged at top at left and right sides of gas tank room(1.5);Gas Chamber(1)Above it is provided with bus-bar room(2)And mechanism chamber(5)Two parts, bus-bar room(2)In be provided with current transformer(2.2), air pressure Table(1.1), all insulation flexible bus(2.1);Gas tank room(1)Bottom is provided with two pressure release passages(3);Mechanism chamber(5), bus-bar room (2)Lower section is provided with secondary component room(4), dividing plate is provided between pressure release passage.
  2. The looped network bus section cabinet 2. medium pressure gas according to claim 1 insulate, it is characterised in that:Switch gear room top is disconnected Road device(1.4), centre is disconnecting switch(1.3);Disconnecting switch(1.3)Using two station double break mouth structures;Switch gear room opens in front There is disconnecting switch state observation window.
  3. The looped network bus section cabinet 3. medium pressure gas according to claim 2 insulate, it is characterised in that:Breaker(1.4)If There is rear outlet dead ring(1.41)With upper outlet dead ring(1.42);Outlet dead ring afterwards(1.41)Direction is provided with breach down, Upper outlet dead ring(1.42)Direction is provided with breach backwards.
  4. The looped network bus section cabinet 4. medium pressure gas according to claim 1 insulate, it is characterised in that:Mother block(1.5)If There is the insulating barrier of bowl structure(1.51), it is internally provided with grading shield(1.52);Mother block(1.5)Centre is conductive copper piece, Pressure cover(1.52)With mother block(1.5)Middle conductive copper piece is connected;Grading shield(1.52)It is big using metallic netted structural, mesh It is small in 1-2 millimeters;Mother block(1.5)Insulating barrier(1.51)Using epoxide resin material, by Vacuum Mixture, automatic pressure coagulates Adhesive process and conductive copper piece and grading shield(1.52)It is solidified togather.
CN201720402324.7U 2017-04-18 2017-04-18 A kind of medium pressure gas insulation looped network bus section cabinet Expired - Fee Related CN206712317U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720402324.7U CN206712317U (en) 2017-04-18 2017-04-18 A kind of medium pressure gas insulation looped network bus section cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720402324.7U CN206712317U (en) 2017-04-18 2017-04-18 A kind of medium pressure gas insulation looped network bus section cabinet

Publications (1)

Publication Number Publication Date
CN206712317U true CN206712317U (en) 2017-12-05

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Family Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108736369A (en) * 2017-04-18 2018-11-02 北海银河开关设备有限公司 A kind of medium pressure gas insulation looped network bus section cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108736369A (en) * 2017-04-18 2018-11-02 北海银河开关设备有限公司 A kind of medium pressure gas insulation looped network bus section cabinet

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CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20171205