CN101320891B - Side-installed shifting type high-tension switch cabinet - Google Patents
Side-installed shifting type high-tension switch cabinet Download PDFInfo
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- CN101320891B CN101320891B CN2008101232481A CN200810123248A CN101320891B CN 101320891 B CN101320891 B CN 101320891B CN 2008101232481 A CN2008101232481 A CN 2008101232481A CN 200810123248 A CN200810123248 A CN 200810123248A CN 101320891 B CN101320891 B CN 101320891B
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Abstract
The invention relates to a laterally-installed moving-type switch cabinet for receiving and distributing the electric energy, comprising a generatrix chamber, a breaker chamber, a relay meter chamber, a cable chamber and a voltage reliving chamber; the tri-phase polar pillar of the break is vertically distributed in the front and vertical direction of the switch cabinet; the moving direction of the hand cart is the vertical direction; the upper static contact head quietly through having touching the head box and fixing on generatrix bar directly of insulating sleeve function without the branch generatrix; the hand cart uses the electric or manual mechanism to move the hand cart entering the working position or the testing separating position; the breaker can process the electric opening and closing valve operation and the breaker processes the mechanical button operation via the emergency valve installed on the front plate, and the breaker can see the separating breaking opening of the main contact head via the observing window installed on the front plate.
Description
Technical field
The invention belongs to the high voltage electric equipment technical field, relate to a kind of side-installed shifting type high-tension switch cabinet that is used to accept and distribute electric energy.
Background technology
At present, general moveable high-voltage switchgear circuit breaker three-phase pole transverse arrangement of turbo, by manual propulsive mechanism circuit breaker cart is moved backward and insert each three pairs of fixed contact box up and down, handcart enters the service position, because circuit breaker operation mechanism away from the switch cubicle front panel, makes manual-operated emergent machinery opening button be difficult to operation; By manual drawing mechanism circuit breaker cart is moved forward from the fixed contact box and extract out, handcart enters the isolation experiment position, owing to be subjected to positive stopping of arranging of circuit breaker cart, makes the obviously not visible fracture of main contact; Earthed switch is positive to be installed by vertically operation of transmission conversion; Circuit breaker three-phase pole transverse arrangement of turbo switch cubicle width is bigger; Main bus bar intersects with the branch bar orientation, has increased the length of main circuit; Because the conversion between handcart service position and isolation experiment position need move forward and backward certain distance, so switch cubicle depth direction longer dimension has increased floor space.
For overcoming above-mentioned deficiency, utility model patent 02259031.5 is with reference to the structure of the Britain VISAX of GEC Alstom company type high-tension switch cabinet, develop vertically half-twist of three-phase pole side dress, vacuum circuit-breaker or its three-phase pole part, formed service position and isolation experiment position.Though adorning vertical rotary structure, side overcome the former many shortcomings from many aspects, but bring the shortcoming of self as follows: vacuum circuit-breaker or its three-phase pole part vertically half-twist make the metal dust of arc burning generation stick on the insulating material of vacuum extinction indoor easily, influence dielectric strength between the vacuum circuit-breaker fracture, vacuum interrupter Electric Field Distribution and connecting-disconnecting function; Three-phase vacuum interrupter pole rotates in switch cubicle as the electrification in high voltage element, and electrification in high voltage spare movement locus is long, considers the needs that should satisfy electric clearance in the rotary course, and isolated insulation cover size is big, cost is high, and the switch cubicle width is also bigger; Transmission and mechanical interlocking relative complex when rotating; When the vacuum circuit-breaker operating mechanism does not rotate with three-phase vacuum interrupter pole, need the driving/rotation conversion of more complicated secondary, and the linking intensity between operating mechanism and three-phase vacuum interrupter pole and stable poorer than being fixedly connected; When down connector assembly is charged, such as long cable section of ingoing line be subjected to electric cabinet or contact cabinet, in rotary course, be difficult to realize will separate poor safety performance with the following connector assembly of high-tension electricity with the valve that links; The upper contact head box directly uses main bus bar as fixed contact, main bus bar scuff resistance, surface appearance, dimensional discrepancy and installation accuracy are required to improve, and fixed contact is difficult to change.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of switch cubicle width is provided and depth dimensions is little, can install manual-operated emergent on/off switch button, have obvious visible handcart isolation fracture, hoisting mechanism and up and down simple, the main circuit of valve transmission do not have branch bar, joint is few, current-carrying conductor is short out, heat generating spot is few side-installed shifting type high-tension switch cabinet.
According to technical scheme provided by the invention, the release chamber is set on the housing rear wall, on housing antetheca top the relay control room is set, inner space at housing sets gradually bus-bar room from top to bottom, breaker chamber and cable vault, circuit breaker cart is set in breaker chamber, the middle part of the circuit breaker three-phase pole in circuit breaker cart is provided with lower moving contact, inwall at housing is fixed with the following fixed contact that cooperates with lower moving contact, bottom at following fixed contact is connected with current transformer, the bottom of current transformer connects Grunding switch gear device, the top of every phase circuit breaker polar is last moving contact, above breaker chamber, be provided with the upper static contact that cooperates with last moving contact, it is characterized in that: hoisting mechanism is arranged below circuit breaker cart, circuit breaker three-phase pole is vertically arranged at the fore-and-aft direction of housing, circuit breaker cart moves up and down and enters service position or test isolated location under the drive of hoisting mechanism.
Dividing plate for fixedly installing between bus-bar room and the breaker chamber; Be covered with the insulation contact box that fixedly installs in the outside of upper static contact, described upper static contact directly is connected with bus, does not need to establish in addition branch bar; Outside at following fixed contact is covered with the insulation contact box.
Described circuit breaker cart comprises circuit breaker operation mechanism, circuit breaker underframe, circuit breaker three-phase pole and handcart underframe.
Be covered with the insulating cylinder of the top end face that is fixedly installed on current transformer at the connecting portion of following fixed contact and current transformer.
Described hoisting mechanism comprises handcart carriage, rocking arm and rotating shaft, in hinged handcart carriage and the rotating shaft respectively of the two ends of rocking arm, make handcart carriage, rocking arm and rotating shaft form the support body of parallelogram, be provided with the operating axis that the outer end passes housing in this support body bottom, the inner of operating axis and rotating shaft are by the worm-and-wheel gear transmission.
Handcart carriage both sides are provided with the guide plate that is fixed on the shell, offer gathering sill on the guide plate, and the sidewall of handcart carriage is provided with the axis of guide that inserts in the gathering sill, and gathering sill can only move up and down the handcart carriage by the axis of guide.
Be provided with between moving contact and the upper static contact in breaker chamber isolate usefulness on valve, the described valve of going up is slidingly connected on the cross bar of one end, on shell, be provided with rotatable slurcam, the roller that is installed on the slurcam makes slurcam around its rotating shaft rotation under the effect that handcart moves up and down, slide on cross bar by promoting valve, reach the purpose of isolating top moving contact and fixed contact with the hinged connecting rod of slurcam;
Be provided with the following valve of isolating usefulness between lower moving contact and the following fixed contact; Described down valve is for slidably and be the dividing plate of " L " shape, and following valve makes it with the moving up and down and slide of circuit breaker cart by special-purpose gathering sill, reaches the purpose of isolating bottom moving contact and fixed contact.
Utilization is installed in the isolation fracture that observation window on the breaker chamber Qianmen is watched main contact, circuit breaker cart is when the test isolated location, automatically isolate charged upper and lower fixed contact with the valve of circuit breaker cart motion interlock, under the prerequisite that does not change transmission direction, but the earthed switch that direct control is vertically arranged.
The invention has the beneficial effects as follows: switch cubicle width and depth dimensions are little, have realized the miniaturization of withdraw-type switch cabinet, help saving floor space; The switch cubicle main contact has obviously visible fracture; Front panel can be installed the emergent on/off switch button of armstrong's patent; Hoisting mechanism and up and down the valve transmission is simple, mechanical interlocking is easy to realize; Main circuit does not have branch bar, and joint is few, current-carrying conductor is short out, and heat generating spot is few.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention.
Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
The invention will be further described below in conjunction with concrete drawings and Examples.
As shown in the figure: housing 1 rear wall is provided with release chamber 12, the top of release chamber 12 is provided with release room cover plate 2, be provided with relay control room 17 on housing 1 antetheca top, the inner space of housing 1 is followed successively by bus-bar room 18 from top to down, breaker chamber 16 and cable vault 14, in breaker chamber 16, be equipped with by circuit breaker operation mechanism 24, circuit breaker underframe 27, the circuit breaker cart that circuit breaker three-phase pole 9 and handcart underframe 39 are formed, the bottom surface of cable vault 14 is provided with cable plug 13, the middle part of every phase circuit breaker polar 9 is provided with lower moving contact 8, be provided with the following fixed contact 20 that cooperates with lower moving contact 8 at breaker chamber 16 internal fixation, be covered with insulation contact box 19 at following fixed contact 20, be connected with current transformer 22 in following fixed contact 20 bottoms, current transformer 22 bottoms connect Grunding switch gear device, described Grunding switch gear device comprises earthed switch 23 and earthed switch main shaft 26, every phase circuit breaker polar 9 tops are last moving contact 5, above last moving contact 5, be provided with the upper static contact 4 that is mated, described and bus 3 direct-connected upper static contacts 4 are covered with insulation contact box 28, dividing plate 38 for fixedly installing between bus-bar room 18 and the breaker chamber 16, the circuit breaker cart below is connected with hoisting mechanism 11, described circuit breaker cart moving direction is a vertical direction, and circuit breaker three-phase pole 9 is vertically arranged at the fore-and-aft direction of housing.
Be covered with the insulating cylinder 21 that is fixedly installed on current transformer 22 top end faces at following fixed contact 20 with current transformer 22 connecting portions.Pass shell 1 place at main bus bar 3 and be provided with insulating case 29.
Described hoisting mechanism 11 comprises handcart carriage 30, rocking arm 32 and rotating shaft 31, handcart carriage 30 is all hinged with rocking arm 32 with the both ends of rotating shaft 31, make handcart carriage 30, rocking arm 32 and rotating shaft 31 form the support body of parallelogram, be provided with the operating axis 15 that the outer end passes housing 1 in this support body bottom, the inner of operating axis 15 and rotating shaft 31 are by the worm-and-wheel gear transmission.
Be provided with between moving contact 5 and the upper static contact 4 in breaker chamber 16 isolate usefulness on valve 6.The described valve 6 of going up is slidingly connected on the cross bar 35 of one end, on shell 1, be provided with rotatable slurcam 36, the roller that is installed on the slurcam 36 makes slurcam 36 around its rotating shaft rotation under the effect that handcart moves up and down, slides on cross bar 35 by promoting valve 6, reach the purpose of isolating top moving contact 5 and fixed contact 4 with the hinged connecting rod of slurcam 36; Be provided with the following valve 7 of isolating usefulness between lower moving contact 8 and the following fixed contact 20.Described down valve 7 is for slidably and be the dividing plate of " L " shape, and following valve 7 makes it with the moving up and down and slide of circuit breaker cart by special-purpose gathering sill, reaches the purpose of isolating bottom moving contact 8 and fixed contact 20.
With lateral arrangement before, during and after the three-phase pole 9 on the circuit breaker, moving contact 5 is equipped with at the pole top, and upper static contact 4 directly is fixed on the main bus bar 3, does not need to establish in addition branch bar; Moving plug 8 is equipped with down at pole 9 middle parts, following fixed contact 20 links to each other with current transformer 22 by insulation contact box 19, the fixed contact of current transformer 22 another termination outgoing cables and earthed switch 23, earthed switch 23 is by vertically arranging, direct control earthed switch main shaft 26 carries out the earthed switch on/off switch, does not need to carry out transmission conversion and changes direction of operating.Circuit breaker cart moves up it by electronic or hand hoisting mechanism 11 and enters the service position, and circuit breaker cart can carry out the on/off switch operation, gets final product electric operating, also can be by being installed in the armstrong's patent on/off switch push-botton operation on the Qianmen 25; Behind the circuit breaker cart separating brake, move down by electronic or hand hoisting mechanism 11 and to enter the isolation experiment position, can obviously see the isolation fracture of main contact by being installed in observation window on the Qianmen 25; Circuit breaker cart also can enter maintenance and change the position from extraction in the switch cubicle.In the upper and lower mobile process of circuit breaker cart, open or seal the fixed contact box automatically with the last valve 6 and the following valve 7 of hoisting mechanism 11 interlocks.Between switching, hoisting mechanism 11 motions, the operation of circuit breaker on/off switch and the operation of earthed switch 23 on/off switch of switch cubicle door, be equipped with electric and mechanical locking device, to guarantee the fail safe of operation.Because three-phase pole 9 is vertically arranged at the fore-and-aft direction of housing 1, the switch cubicle width dimensions is little.Because circuit breaker cart is upper and lower moving rather than forward and backward moving, so the switch cubicle depth dimensions is also very little.
High-tension switch cabinet comprises bus-bar room 18, breaker chamber 16, relay control room 17, cable vault 14 and release chamber 12.Vertically arrange the three-phase pole 9 of vacuum circuit-breaker handcart front and back in switch cubicle, helps dwindling the width dimensions of switch cubicle; Three-phase pole 9 tops are provided with moving plug 5, and quiet plug 4 directly is fixed on the main bus bar 3, does not need to establish in addition branch bar; Position shown in Figure 1 is the service position that plugs and sockets is in inserting state, circuit breaker can carry out the on/off switch operation, because circuit breaker operation mechanism 24 is nearer apart from breaker chamber Qianmen 25, the manual-operated emergent machinery on/off switch button that is installed on the Qianmen 25 can operating breaker operating mechanism 24, makes breaker closing or separating brake; Behind the breaker open operation, can make circuit breaker cart under the effect of guide plate 10, move down certain distance by electronic or manual actuating hoisting mechanism operating axis 15, hoisting mechanism 11 to handcart isolation experiment position, automatically isolate upper static contact 4 and following fixed contact 20 with the valve 6 and the valve 7 of circuit breaker cart motion interlock simultaneously, guaranteed that the electrification in high voltage fixed contact can not be touched, reach the security requirement of switch cubicle, and can observe directly the obvious isolation cut-off point of plug up and down by the transparent windows on the breaker chamber Qianmen 25; Because handcart is done and moved up and down rather than move forward and backward, and helps dwindling the depth dimensions of switch cubicle, reduce floor space in switch cubicle; Earthed switch 23 is by arranging that vertically direct control earthed switch main shaft 26 carries out the earthed switch on/off switch, does not need to carry out transmission conversion and changes direction of operating.
Claims (6)
1. side-installed shifting type high-tension switch cabinet, be included in the release chamber (12) that is provided with on housing (1) rear wall, the relay control room (17) that is provided with on housing (1) antetheca top, the bus-bar room (18) that sets gradually from top to bottom in the inner space of housing (1), breaker chamber (16) and cable vault (14), in breaker chamber (16), circuit breaker cart is set, the middle part of the circuit breaker three-phase pole (9) in circuit breaker cart is provided with lower moving contact (8), inwall at housing (1) is fixed with the following fixed contact (20) that cooperates with lower moving contact (8), bottom at following fixed contact (20) is connected with current transformer (22), the bottom of current transformer (22) connects Grunding switch gear device, the top of every phase circuit breaker polar (9) is last moving contact (5), be provided with the upper static contact (4) that cooperates with last moving contact (5) in the top of breaker chamber (16), it is characterized in that: hoisting mechanism (11) is arranged below circuit breaker cart, circuit breaker three-phase pole (9) is vertically arranged at the fore-and-aft direction of housing (1), circuit breaker cart moves up and down and enters service position or test isolated location under the drive of hoisting mechanism (11);
Described hoisting mechanism (11) comprises handcart carriage (30), rocking arm (32) and rotating shaft (31), in hinged handcart carriage (30) and the rotating shaft (31) respectively of the two ends of rocking arm (32), make handcart carriage (30), rocking arm (32) and rotating shaft (31) form the support body of parallelogram, support body bottom at this parallelogram is provided with the operating axis (15) that the outer end passes housing (1), and the inner of operating axis (15) and rotating shaft (31) are by the worm-and-wheel gear transmission;
Be provided with the last valve (6) of isolating usefulness between last moving contact (5) in breaker chamber (16) and the upper static contact (4), the described valve (6) of going up is slidingly connected on the cross bar (35) that is positioned at valve (6) one ends, on shell (1), be provided with rotatable slurcam (36), the roller that is installed on the slurcam (36) makes slurcam (36) around its rotating shaft rotation under the effect that handcart moves up and down, go up at cross bar (35) and slide by promoting to go up valve (6), reach and isolate the purpose that goes up moving contact (5) and upper static contact (4) with the hinged connecting rod of slurcam (36); Be provided with the following valve (7) of isolating usefulness between lower moving contact (8) and the following fixed contact (20); Described down valve (7) is for slidably and be the dividing plate of " L " shape, and following valve (7) makes it with the moving up and down and slide of circuit breaker cart by special-purpose gathering sill, reaches the purpose of isolating lower moving contact (8) and following fixed contact (20).
2. side-installed shifting type high-tension switch cabinet as claimed in claim 1 is characterized in that: the dividing plate (38) for fixedly installing between bus-bar room (18) and the breaker chamber (16); Be covered with the first insulation contact box (28) that fixedly installs in the outside of upper static contact (4), described upper static contact (4) directly is connected with bus; Outside at following fixed contact (20) is covered with the second insulation contact box (19).
3. side-installed shifting type high-tension switch cabinet as claimed in claim 1 is characterized in that: described circuit breaker cart comprises circuit breaker operation mechanism (24), circuit breaker underframe (27), circuit breaker three-phase pole (9) and handcart underframe (39).
4. side-installed shifting type high-tension switch cabinet as claimed in claim 1 is characterized in that: the insulating cylinder (21) that is covered with the top end face that is fixedly installed on current transformer (22) at the following fixed contact (4) and the connecting portion of current transformer (22).
5. side-installed shifting type high-tension switch cabinet as claimed in claim 1, it is characterized in that: handcart carriage (30) both sides are provided with the guide plate (10) that is fixed on the shell (1), offer gathering sill (33) on the guide plate (10), the sidewall of handcart carriage (30) is provided with the axis of guide (34) that inserts in the gathering sill (33), and gathering sill (33) can only move up and down handcart carriage (30) by the axis of guide (34).
6. side-installed shifting type high-tension switch cabinet as claimed in claim 1, it is characterized in that: utilize the observation window that is installed on the breaker chamber Qianmen (25) to watch the isolation fracture of main contact, circuit breaker cart is when the test isolated location, automatically isolate charged upper and lower fixed contact (4,20) with the valve of circuit breaker cart motion interlock, under the prerequisite that does not change transmission direction, but the earthed switch that direct control is vertically arranged.
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CN2008101232481A CN101320891B (en) | 2008-06-12 | 2008-06-12 | Side-installed shifting type high-tension switch cabinet |
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CN2008101232481A CN101320891B (en) | 2008-06-12 | 2008-06-12 | Side-installed shifting type high-tension switch cabinet |
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CN101320891A CN101320891A (en) | 2008-12-10 |
CN101320891B true CN101320891B (en) | 2010-11-17 |
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Assignee: Wuxi Xinyidai Electric Power Apparatus Co.,Ltd. Assignor: Gao Yun Contract record no.: 2011320000110 Denomination of invention: Side-installed shifting type high-tension switch cabinet Granted publication date: 20101117 License type: Exclusive License Open date: 20081210 Record date: 20110301 |