CN201742015U - Railroad phase segment vacuum switch cabinet - Google Patents
Railroad phase segment vacuum switch cabinet Download PDFInfo
- Publication number
- CN201742015U CN201742015U CN2010202435448U CN201020243544U CN201742015U CN 201742015 U CN201742015 U CN 201742015U CN 2010202435448 U CN2010202435448 U CN 2010202435448U CN 201020243544 U CN201020243544 U CN 201020243544U CN 201742015 U CN201742015 U CN 201742015U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- bus
- chamber
- vacuum switch
- switch cabinet
- 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
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Abstract
A railroad phase segment vacuum switch cabinet comprises a cabinet body, and a withdrawable component, namely a circuit breaker handcart, wherein the cabinet body comprises a circuit breaker chamber (1), a busbar chamber (2), an instrument chamber (3) and a cable chamber (4); the circuit breaker handcart is installed in the circuit breaker chamber (1) of the cabinet body; a bus sleeve (6), a main bus (7), a branch bus (8) and a static contact box (9) are arranged in the busbar chamber (2); one end of the main bus (7) is electrically connected with the outside through the bus sleeve (6) installed at the top of the busbar chamber (2), the other end of the main bus (7) is fixed on the static contact box (9) through the branch bus (8); the static contact box (9) and a valve (10) are installed on the side wall of the circuit breaker chamber (1) and are movably connected with the circuit breaker handcart; and a ground switch (11) and a current transformer (12) are installed on the rear wall of a cable chamber (4). The railroad phase segment vacuum switch cabinet has the advantages of simple structure, convenient use, strong safety and high reliability.
Description
Technical field
The utility model relates to a kind of rated voltage 27.5KV, exchanges the single-phase indoor high voltage switchgear that 50Hz can intelligent select phase, be particularly useful for the electric railway electric power system, as minute, close the vacuum switch cabinet of the usefulness of load current, overload current and short circuit current, specifically a kind of railway phase segmentation vacuum switch cabinet.
Background technology
Existing 27.5KV railway phase segmentation vacuum circuit-breaker only is a circuit breaker, is not a complete switchgear.Its is directly circuit breaker to be advanced in the L shaped framework with fixed contact on the framework to be connected at the on-the-spot mounting means of operation.There is serious hidden danger in such mounting means.At first, because circuit breaker is to open wide operation, although there is the guardrail such as wire netting one class that product is fenced up, but still have the possibility of operating personnel's mistakenly entering charged chamber, personal safety can not obtain basic assurance; The second, in a single day foreign matter is easy to enter into the product the inside, and has foreign matter to enter, be easy to cause short circuit, causes the accident; The 3rd, the circuit breaker dolly advances L shaped framework to prize into by lever by manpower, can not guarantee steady propelling, and the impact during the dynamic/static contact contact is also very big, causes the damage of contact position parts easily; The 4th, in case have an accident, will bring disaster to adjacent equipment, also might be with the accident expanded range; The 5th, the indication of control protective device and instrument and meter is not obvious, observes also inconvenient.
Summary of the invention
The purpose of this utility model is at the existing the problems referred to above of present 27.5KV railway phase segmentation vacuum circuit-breaker, proposes a kind of railway phase segmentation vacuum switch cabinet.
The technical solution of the utility model is:
A kind of railway phase segmentation vacuum switch cabinet, it comprises that be circuit breaker cart by cabinet with extracting parts out, described cabinet comprises breaker chamber, bus-bar room, control room and cable vault, circuit breaker cart is installed in the breaker chamber of cabinet, be provided with bus casing in the described bus-bar room, main bus bar, branch bar and fixed contact box, the bus casing of one end through being installed in the bus-bar room top of main bus bar carries out electric the connection with the external world, the other end is fixed on the incoming line of fixed contact box by branch bar, the line outlet of fixed contact box is arranged in the cable vault, branch bar passes the fixed contact box and links to each other with current transformer in the cable vault, and the valve of fixed contact box is installed on the sidewall of breaker chamber and flexibly connects with circuit breaker cart; The earthed switch summation current transformer is installed on the rear wall of cable vault.
Circuit breaker cart of the present utility model comprises handcart and circuit breaker, and circuit breaker is installed on the handcart.
The two bottom sides of breaker chamber of the present utility model is equipped with track, and the pulley that is provided with the circuit breaker cart bottom matches.
In the cable vault of the present utility model lightning arrester is housed.
Circuit breaker of the present utility model is the permanent magnetism vacuum circuit-breaker.
The relay instrument is installed in the control room of the present utility model.
The beneficial effects of the utility model:
The utility model has overcome the shortcoming of existing product effectively, becomes a complete railway phase segmentation vacuum switch cabinet.Cabinet divides four independent compartments, and the shell protection grade is IP4X, between each cell and the breaker chamber door when opening degree of protection be IP2X.It has built on stilts turnover line, cable turnover line and other function scheme.Can carry out Installation and Debugging from the front and safeguard, so it can form dual arrangement back-to-back or install by wall, simple in structure, easy to use, have the high advantage of high safety and reliability.
Cabinet of the present utility model adopts modular construction, forms with staking nut and high-intensity Bolt Connection, and the processing cycle is shortened, and component universality is strong, is convenient to tissue production.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, a kind of railway phase segmentation vacuum switch cabinet, it comprises that be circuit breaker cart by cabinet with extracting parts out, described cabinet comprises breaker chamber 1, bus-bar room 2, control room 3 and cable vault 4, circuit breaker cart is installed in the breaker chamber 1 of cabinet, be provided with bus casing 6 in the described bus-bar room 2, main bus bar 7, branch bar 8 and fixed contact box 9, the bus casing 6 of one end of main bus bar 7 through being installed in bus-bar room 2 tops carries out electric the connection with the external world, the other end is fixed on the incoming line of fixed contact box 9 by branch bar 8, the line outlet of fixed contact box 9 is arranged in cable vault 4, branch bar 8 passes fixed contact box 9 and links to each other with current transformer 12 in the cable vault, and the valve 10 of fixed contact box 9 is installed on the sidewall of breaker chamber 1 and flexibly connects with circuit breaker cart; Earthed switch 11 summation current transformers 12 are installed on the rear wall of cable vault 4.
The parts of extracting out of the present utility model are that circuit breaker cart and breaker chamber 1 insulation coordination are reliable, and circuit breaker cart comprises handcart and circuit breaker 5, and circuit breaker 5 is installed on the handcart, and described circuit breaker 5 is the permanent magnetism vacuum circuit-breaker.
The two bottom sides of breaker chamber 1 of the present utility model is equipped with track, and the pulley that is provided with the circuit breaker cart bottom matches.
In the cable vault 4 of the present utility model lightning arrester is housed.
During concrete enforcement:
Cabinet: adopt aluminizing zinc sheet metal to process, whole like this cabinet not only has high accuracy, strong anticorrosive and anti-oxidant; Adopt modular construction, form with staking nut and high-intensity Bolt Connection, the processing cycle is shortened, component universality is strong, is convenient to tissue production.
Circuit breaker cart: skeleton adopts sheet metal to assemble after the CNC machine tooling.Circuit breaker cart and breaker chamber insulation coordination are reliable, mechanical interlocking safety, reliable and flexible.Circuit breaker cart has open position, test position and service position in breaker chamber, each position has positioner respectively, and is reliable to guarantee interlocking.Handcart shakes propelling, withdraws from leading screw, operates light, flexible.
Permanent magnetism vacuum circuit-breaker and other auxiliary equipment are housed on the circuit breaker cart.When handcart advances breaker chamber, just can be positively locked in open position or test position, and cabinet position display lamp shows its position.After having only locking fully, just can shake propulsive mechanism and push handcart to service position.Handcart is behind the service position, and it is motionless to advance handle promptly to shake, and its correspondence position display lamp shows the position at its place.The mechanical interlocking of handcart can reliably guarantee handcart only in the service position or during test position, and circuit breaker just can close, sub-switching operation; Have only circuit breaker when gate-dividing state, handcart could move.
A main electric component of the present utility model all has its independently compartment, i.e. breaker chamber, bus-bar room, cable vault and control room, and degree of protection reaches IP2X between each compartment.Except that relay bungalow, other three compartments all have pressure release passage respectively.
Breaker chamber: track has been installed in the both sides of bottom, moves in cabinet for circuit breaker cart.The valve of fixed contact box is installed in the rear wall of handcart chamber, moves to from open position/test position the process of service position at handcart, and valve on the upper and lower fixed contact box and handcart interlock are opened simultaneously automatically.When opposite direction was mobile, valve is auto-closing then, retreated to certain position and covered the fixed contact box fully up to handcart, formed effectively and isolated.Charged bus-bar room and breaker chamber are isolated in closing of valve, thereby guarantee that the repair and maintenance personnel do not touch electrified body.When handcart chamber door was closed, handcart can be operated equally, by observation window in the dream, can observe handcart present position and divide-shut brake situation in the compartment.On the door of handcart chamber, be provided with the manual operation danger button, when abnormal conditions appear in electric operation, can be under door closure state, by button to circuit breaker manually divide, closing operation.
Bus-bar room: main bus bar is fixed by branch bar and fixed contact box.Branch bus is connected in fixed contact box and main bus bar by bolt, does not need other support.Main bus bar carries out electric the connection through cabinet top sleeve pipe with the external world, connects bus like this and has kept air cushioning, and just in case when internal fault electric arc occurring, can prevent that it from running through fusing, sleeve pipe can be effectively be limited in accident in this cabinet and spread to other cabinet.
The cable vault: the space, cable vault is bigger, and current transformer, earthed switch are contained on the compartment back-wall, and lightning arrester is installed in the compartment rear lower.After handcart removed, the workmen just can enter from the front and carry out installation and maintenance in the cabinet.
The control room: the secondary device that relaying protection element, instrument, charged display unit indicating device can be installed in the relay control room and specific (special) requirements is arranged, control circuit are laid in the wire casing in enough spaces, and metal cover board is arranged, and secondary line and hyperbaric chamber are isolated.
Interlock: safe and reliable interlock is housed in the switchgear, satisfies five anti-requirements.
(1), suggestive button or change over switch are housed on control room's door, divide, close circuit breaker to prevent mistake.
(2), circuit breaker cart is in test or during the service position, circuit breaker just can carry out branch, closing operation, and handcart can't move behind breaker closing, has prevented on-load mistake push-and-pull circuit breaker.
(3), only when earthed switch is in the separating brake position, circuit breaker cart could move to the service position from test/open position; Only when circuit breaker cart was in test/open position, earthed switch just can carry out closing operation, and circuit breaker is closed in the pass when so just having prevented that charged mistake splice grafting ground switch and earthed switch are in make position.
(4), when earthed switch is in the separating brake position, Xiamen and back door all can't be opened; When earthed switch was in closing position, if Xiamen or back door do not shut, earthed switch can not separating brake, has so just prevented the mistakenly entering into charged compartment.
(5), circuit breaker cart is really in test position or service position, but when not controlling voltage, only manual separating brake can not close a floodgate.
(6), the position of secondary plug and handcart interlocking.The secondary line on the cabinet and the contact of the secondary line on the circuit breaker cart realize by manual secondary plug.The moving contact of secondary plug links to each other with circuit breaker cart by a nylon bellows, and secondary stationary contact headstock is installed in the top of switch cabinet handcart chamber.Secondary plug can be plugged and extract to circuit breaker cart only when test/open position.When circuit breaker cart was in the service position, because the mechanical interlocking effect, secondary plug was locked, can not transfer to.Circuit breaker cart only can carry out separating brake before the secondary plug access failure, so can't make its combined floodgate.
Pressure relief device: above circuit breaker cart chamber, bus-bar room and cable vault, be equipped with pressure relief device.When circuit breaker or bus generation internal fault electric arc, follow the appearance of electric arc, the switch cubicle air pressure inside raises, the special seal circle that is installed on the door is closed the cabinet front, the pressure release metallic plate of top installing will be opened automatically, drain gas, release pressure is to guarantee the safety of operating personnel and switch cubicle.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art to be realized.
Claims (6)
1. railway phase segmentation vacuum switch cabinet, it is characterized in that it comprises that be circuit breaker cart by cabinet with extracting parts out, described cabinet comprises breaker chamber (1), bus-bar room (2), control room (3) and cable vault (4), circuit breaker cart is installed in the breaker chamber (1) of cabinet, be provided with bus casing (6) in the described bus-bar room (2), main bus bar (7), branch bar (8) and fixed contact box (9), the bus casing (6) of one end of main bus bar (7) through being installed in bus-bar room (2) top carries out electric the connection with the external world, the other end is fixed on the incoming line of fixed contact box (9) by branch bar (8), the line outlet of fixed contact box (9) is arranged in cable vault (4), branch bar (8) passes fixed contact box (9) and links to each other with current transformer (12) in the cable vault, and the valve (10) of fixed contact box (9) is installed on the sidewall of breaker chamber (1) and flexibly connects with circuit breaker cart; Earthed switch (11) summation current transformer (12) is installed on the rear wall of cable vault (4).
2. railway phase segmentation vacuum switch cabinet according to claim 1 is characterized in that described circuit breaker cart comprises handcart and circuit breaker (5), and circuit breaker (5) is installed on the handcart.
3. railway phase segmentation vacuum switch cabinet according to claim 1 is characterized in that the two bottom sides of described breaker chamber (1) is equipped with track, and the pulley that is provided with the circuit breaker cart bottom matches.
4. railway phase segmentation vacuum switch cabinet according to claim 1 is characterized in that in the described cable vault (4) lightning arrester being housed.
5. railway phase segmentation vacuum switch cabinet according to claim 2 is characterized in that described circuit breaker (5) is the permanent magnetism vacuum circuit-breaker.
6. railway phase segmentation vacuum switch cabinet according to claim 1 is characterized in that in the described control room (3) the relay instrument being installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202435448U CN201742015U (en) | 2010-06-30 | 2010-06-30 | Railroad phase segment vacuum switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202435448U CN201742015U (en) | 2010-06-30 | 2010-06-30 | Railroad phase segment vacuum switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201742015U true CN201742015U (en) | 2011-02-09 |
Family
ID=43557292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202435448U Expired - Fee Related CN201742015U (en) | 2010-06-30 | 2010-06-30 | Railroad phase segment vacuum switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201742015U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684749A (en) * | 2016-11-15 | 2017-05-17 | 正泰电气股份有限公司 | Small-sized vacuum ring main unit |
-
2010
- 2010-06-30 CN CN2010202435448U patent/CN201742015U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684749A (en) * | 2016-11-15 | 2017-05-17 | 正泰电气股份有限公司 | Small-sized vacuum ring main unit |
| CN106684749B (en) * | 2016-11-15 | 2019-01-25 | 正泰电气股份有限公司 | Miniaturized vacuum ring network cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20130630 |