CN111786265B - Dual power switch cabinet - Google Patents
Dual power switch cabinet Download PDFInfo
- Publication number
- CN111786265B CN111786265B CN202010732835.1A CN202010732835A CN111786265B CN 111786265 B CN111786265 B CN 111786265B CN 202010732835 A CN202010732835 A CN 202010732835A CN 111786265 B CN111786265 B CN 111786265B
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- Prior art keywords
- power
- common
- power supply
- module
- standby
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/167—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal truck type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
本发明涉及一种双电源开关柜，包括柜体、出线模块、常用电源进线模块、常用电源监测模块、备用电源进线模块、备用电源监测模块、双电源真空断路器、底盘车，双电源真空断路器包括机构架、三个双电源固封极柱、常用电源操作机构和备用电源操作机构，柜体上分别设置有断路器室、出线室、常用电源进线室、常用电源监测室、备用电源进线室、备用电源监测室，出线模块、常用电源进线模块、常用电源监测模块、备用电源进线模块、备用电源监测模块、双电源真空断路器分别设置在出线室、常用电源进线室、常用电源监测室、备用电源进线室、备用电源监测室、断路器室内，本发明具有结构简单、性能稳定可靠、结构布局合理、高安全性、高分断能力的优点。
The invention relates to a dual-power switch cabinet, comprising a cabinet body, an outlet module, a common power incoming line module, a common power monitoring module, a standby power incoming line module, a standby power monitoring module, a dual-power vacuum circuit breaker, and a chassis vehicle. The dual-power vacuum circuit breaker comprises a mechanism frame, three dual-power sealed poles, a common power operating mechanism and a standby power operating mechanism. A circuit breaker chamber, an outlet chamber, a common power incoming line chamber, a common power monitoring chamber, a standby power incoming line chamber, and a standby power monitoring chamber are respectively arranged on the cabinet body. The outlet module, the common power incoming line module, the common power monitoring module, the standby power incoming line module, the standby power monitoring module, and the dual-power vacuum circuit breaker are respectively arranged in the outlet chamber, the common power incoming line chamber, the common power monitoring chamber, the standby power incoming line chamber, the standby power monitoring chamber, and the circuit breaker chamber. The invention has the advantages of simple structure, stable and reliable performance, reasonable structural layout, high safety, and high breaking capacity.
Description
Technical Field
The invention relates to a switch cabinet, in particular to a dual-power switch cabinet.
Background
With the development of society, in power distribution systems, there are many users who have high demands on the reliability of power supply, such as coal mines and oil refineries, and once power failure occurs in these units, significant economic loss and even casualties are caused to the units, so in the power supply systems of these units, the common power supply and the standby power supply are required to be provided, and when the power failure occurs in the common power supply, the standby power supply must be immediately put into power restoration, and in order to achieve the purpose, automatic switching is required between the common power supply and the standby power supply through a dual-power switching mechanism. The double-power switch cabinet is a device capable of automatically and reliably switching between two paths of power supplies, and realizes one path of common and one path of standby power supply. The structural design of the existing dual-power switch cabinet is unreasonable, the structural design of the dual-power vacuum circuit breaker in the dual-power switch cabinet is unreasonable, when two paths of power supplies are switched, the interlocking is unreliable, the safety performance is lower, and the dual-power switch cabinet has the defects of unreasonable internal structural layout, unreliable performance and lower safety performance.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the dual-power switch cabinet which has the advantages of simple structure, stable and reliable performance, reasonable structural layout, high safety and high breaking capacity.
In order to achieve the aim, the invention adopts a double-power-supply switch cabinet, which comprises a cabinet body, an outgoing line module, a common power supply incoming line module, a common power supply monitoring module, a standby power supply incoming line module, a standby power supply monitoring module, a double-power-supply vacuum circuit breaker and a chassis truck arranged on the double-power-supply vacuum circuit breaker, wherein the double-power-supply vacuum circuit breaker comprises a machine frame, three double-power-supply solid-sealing polar poles which are arranged on one side of the machine frame and are provided with two paths of power supply loops, a common power supply operating mechanism and a standby power supply operating mechanism which are symmetrically arranged on the machine frame and are used for driving the double-power-supply solid-sealing polar poles to be on or off, a circuit breaker chamber, an outgoing line chamber, a common power supply incoming line chamber, a common power supply monitoring chamber, a standby power supply incoming line chamber and a standby power supply monitoring chamber are respectively arranged on the cabinet body, the utility model provides a three-phase alternating current power supply is characterized by comprising an outgoing line module, a common power supply incoming line module, a common power supply monitoring module, a standby power supply incoming line module, a standby power supply monitoring module and a dual-power supply vacuum circuit breaker, wherein the outgoing line module, the common power supply incoming line module, the standby power supply monitoring module and the dual-power supply vacuum circuit breaker are respectively arranged in an outgoing line chamber, the common power supply incoming line chamber, the common power supply monitoring chamber, the standby power supply incoming line chamber, the standby power supply monitoring chamber and the circuit breaker chamber, the outgoing line module comprises an outgoing line contact box connected with an outgoing line plum blossom contact of a dual-power supply solid-sealed pole, three outgoing line insulation posts electrically connected with the outgoing line contact box, an outgoing line busbar arranged between the three outgoing line insulation posts, the common power supply monitoring module and the standby power supply monitoring module all comprise an incoming line contact box, a current transformer electrically connected with the incoming line contact box, a knife switch electrically connected with the current transformer, a sampling voltage transformer, a lightning arrester, and the common power supply incoming line module all comprise three insulation posts electrically connected with the current transformer, the wire inlet busbar is arranged between the three wire inlet insulating upright posts, and the wire inlet contact boxes of the common power supply monitoring module and the standby power supply monitoring module are respectively connected to the common wire inlet plum blossom contact and the standby wire inlet plum blossom contact of the dual-power supply solid-sealed polar pole.
The switch cabinet has the beneficial effects that the circuit breaker chamber, the outlet chamber, the common power supply inlet chamber, the common power supply monitoring chamber, the standby power supply inlet chamber and the standby power supply monitoring chamber are respectively arranged on the cabinet body, the internal structure of the switch cabinet is reasonable in layout, internal electric elements cannot be affected mutually, and the common power supply monitoring module and the standby power supply monitoring module can monitor the common power supply and the standby power supply, so that the reliability of the work of the switch cabinet is improved. And the double-power vacuum circuit breaker is arranged in the cabinet body, so that the switch cabinet can realize one-way common and one-way standby power supply, and when the common power supply suddenly fails or fails, the double-power vacuum circuit breaker can be automatically put on the standby power supply, so that the equipment can still normally operate. Therefore, the dual-power switch cabinet has the advantages of simple structure, stable and reliable performance, reasonable structural layout, high safety and high breaking capacity.
Particularly, the common power supply operating mechanism and the standby power supply operating mechanism comprise a breaker operating module, an opening and closing main shaft, a crank arm, a connecting plate and a force reducing connecting arm, wherein the opening and closing main shaft is arranged in linkage with the breaker operating module, the crank arm is arranged in linkage with the opening and closing main shaft, the connecting plate is arranged in linkage with the crank arm, the force reducing connecting arm is arranged on a machine frame in a rotating mode corresponding to the connecting plate, one end of the force reducing connecting arm is arranged on the connecting plate and is in linkage fit with the force reducing connecting arm, a separating brake spring is arranged between one end, close to the connecting plate, of the force reducing connecting arm and the machine frame, the other end of the force reducing connecting arm of the common power supply operating mechanism and the other end of the standby power supply operating mechanism are respectively arranged on two ends of a double-power-source solid-sealing polar pole in a linkage mode, the double-power-source solid-sealing polar-pole two-path power supply on or off can be realized along with the force reducing connecting arm, and the common power supply operating mechanism and the standby power supply operating mechanism are provided with an interlocking mechanism between the interlocking mechanism, and the common power supply operating mechanism can be prevented from executing a closing action simultaneously. The force reducing connecting arm of the common power supply operating mechanism and the standby power supply operating mechanism drives the double-power-supply solid-sealed pole by adopting a lever type structure, so that the double-force output of the operating force of the common power supply operating mechanism and the standby power supply operating mechanism can be realized, the closing speed is favorably accelerated, and the force reducing connecting arm is provided with a brake separating spring, when the brake is separated, the brake separating spring releases energy, the brake separating speed is faster, and the breaking capacity of the double-power-supply vacuum circuit breaker is favorably improved. The dual-power vacuum circuit breaker has the advantages of simple structure, stable and reliable performance, compact structure, high safety and high breaking capacity.
The interlocking mechanism comprises a standby interlocking crank arm which is arranged on a switching-on and switching-off main shaft of the common power supply operating mechanism in a linkage mode, a standby locking connecting rod which is arranged on the switching-on and switching-off main shaft of the common power supply operating mechanism in a linkage mode, and a common locking connecting rod which is arranged on the switching-on and switching-off main shaft of the common power supply operating mechanism in a linkage mode, wherein one end of the standby locking connecting rod is provided with a first driving lug which is in linkage fit with a standby switching-on pawl of the common power supply operating mechanism, and one end of the common locking connecting rod is provided with a second driving lug which is in linkage fit with a common switching-on pawl of the common power supply operating mechanism. An interlocking mechanism is arranged between the common power supply operating mechanism and the standby power supply operating mechanism, so that the common power supply operating mechanism and the standby power supply operating mechanism can be prevented from simultaneously executing a closing action, the safety performance of the double-power-supply vacuum circuit breaker is improved, when the common power supply operating mechanism is in a closing state in operation, the standby locking connecting rod is abutted against the standby closing pawl, at the moment, the standby power supply operating mechanism is in a separating-gate state and cannot execute the closing action, and when the common power supply operating mechanism is in the separating-gate state, the standby locking connecting rod is unlocked, and the standby power supply operating mechanism adopts the closing action. When the standby power supply operating mechanism is in a switching-on state, the common locking connecting rod is abutted against the common switching-on pawl, and at the moment, the common power supply operating mechanism is in a switching-off state and cannot execute switching-on action.
The dual-power-supply solid-sealed pole comprises an insulating pole arranged on a machine frame, a first insulating pull rod, a first conductive block, a first vacuum arc-extinguishing chamber, a conductive clamp, a second vacuum arc-extinguishing chamber, a second conductive block and a second insulating pull rod, wherein the first insulating pull rod, the first conductive block, the first vacuum arc-extinguishing chamber, the conductive clamp, the second vacuum arc-extinguishing chamber, the second conductive block and the second insulating pull rod are arranged in the insulating pole from top to bottom in sequence, the first moving contact in the first vacuum arc-extinguishing chamber is in linkage fit with the first insulating pull rod, the second moving contact in the second vacuum arc-extinguishing chamber is in linkage fit with the second insulating pull rod, and the first conductive block, the conductive clamp and the second conductive block are respectively electrically connected with a common plum blossom contact, an outgoing plum blossom contact and a standby plum blossom contact. The dual-power solid-sealed pole is respectively provided with a first vacuum arc-extinguishing chamber and a second vacuum arc-extinguishing chamber, and the common power operating mechanism and the standby power operating mechanism drive the first vacuum arc-extinguishing chamber and the second vacuum arc-extinguishing chamber through the insulating pull rod respectively, so that the connection or disconnection of two power loops of the dual-power solid-sealed pole can be controlled.
Drawings
Fig. 1 is an internal structural diagram of an embodiment of the present invention.
Fig. 2 is a front view illustrating an internal structure of a vacuum circuit breaker according to an embodiment of the present invention.
Fig. 3 is a right side view illustrating an internal structure of a vacuum circuit breaker according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1-3, the embodiment of the invention is a dual-power switch cabinet, which comprises a cabinet body 10, an outgoing line module 20, a common power incoming line module 30, a common power monitoring module 40, a standby power incoming line module 31, a standby power monitoring module 41, a dual-power vacuum circuit breaker 50, and a chassis 60 arranged on the dual-power vacuum circuit breaker 50, wherein the dual-power vacuum circuit breaker 50 comprises a machine frame 51, three dual-power solid-sealed polar poles 52 which are arranged on one side of the machine frame 51 and are provided with two paths of power loops, a common power operating mechanism 53 and a standby power operating mechanism 54 which are symmetrically arranged on the machine frame 51 and are used for driving the dual-power solid-sealed polar poles 52 to be opened and closed, the cabinet body 10 is respectively provided with a breaker chamber 11, an outgoing line chamber 12, a common power incoming line chamber 13, a common power monitoring chamber 14, a standby power incoming line chamber 15 and a standby power monitoring chamber 16, the wire outlet module 20, the common power supply wire inlet module 30, the common power supply monitoring module 40, the standby power supply wire inlet module 31, the standby power supply monitoring module 41 and the dual power supply vacuum circuit breaker 50 are respectively arranged in the wire outlet chamber 12, the common power supply wire inlet chamber 13, the common power supply monitoring chamber 14, the standby power supply wire inlet chamber 15, the standby power supply monitoring chamber 16 and the circuit breaker chamber 11, the wire outlet module 20 comprises a wire outlet contact box 21 connected with a wire outlet plum blossom contact 521 of a dual power supply solid sealing pole 52, three wire outlet insulation posts 22 electrically connected with the wire outlet contact box 21, and a wire outlet busbar 23 arranged between the three wire outlet insulation posts 22, wherein the common power supply monitoring module 40 and the standby power supply monitoring module 41 comprise a wire inlet contact box 400, a current transformer 401 electrically connected with the wire inlet contact box 400, a knife switch 402 electrically connected with the current transformer 401, sampling voltage transformer 403, arrester 404, common power inlet wire module 30, stand-by power inlet wire module 31 all include with the insulating stand 300 of three inlet wires of current transformer 401 electricity connection, set up the female row 301 of inlet wire between the insulating stand 300 of three inlet wires, common power monitoring module 40, stand-by power monitoring module 41's inlet wire contact box 400 connect respectively on the common inlet wire plum blossom contact 522, stand-by wire plum blossom contact 523 of dual supply solid seal utmost point post 52.
As shown in fig. 2 and 3, the common power supply operating mechanism 53 and the standby power supply operating mechanism 54 each include a breaker operating module 500, a switching-on/off main shaft 501 provided in linkage with the breaker operating module 500, a crank arm 502 provided in linkage with the switching-on/off main shaft 501, a connecting plate 503 provided in linkage with the crank arm 502, and a force reducing connecting arm 504 provided on the frame 51 in a rotating manner corresponding to the connecting plate 503, one end of the force reducing connecting arm 504 is provided on the connecting plate 503 and forms linkage cooperation of the connecting plate 503 and the force reducing connecting arm 504, a switching-off spring 505 is provided between one end of the force reducing connecting arm 504 close to the connecting plate 503 and the mechanism frame 51, the other ends of the force reducing connecting arm 504 of the common power supply operating mechanism 53 and the standby power supply operating mechanism 54 are respectively provided on two ends of the dual power supply solid sealed polar poles 52 in a linkage manner, the dual power supply solid sealed polar poles 52 act along with the force reducing arm 504 and can realize on or off of two power supplies of the dual power supply solid sealed polar poles 52, the common power supply operating mechanism 53 and the standby power supply operating mechanism 70 is provided with the common power supply operating mechanism 70, and the standby power supply operating mechanism 70, and the common power supply operating mechanism 54 can prevent the common power supply operating mechanism from being operated by the interlocking mechanism and the interlocking mechanism. The force reducing connecting arm of the common power supply operating mechanism and the standby power supply operating mechanism drives the double-power-supply solid-sealed pole by adopting a lever type structure, so that the double-force output of the operating force of the common power supply operating mechanism and the standby power supply operating mechanism can be realized, the closing speed is favorably accelerated, and the force reducing connecting arm is provided with a brake separating spring, when the brake is separated, the brake separating spring releases energy, the brake separating speed is faster, and the breaking capacity of the double-power-supply vacuum circuit breaker is favorably improved. The dual-power vacuum circuit breaker has the advantages of simple structure, stable and reliable performance, compact structure, high safety and high breaking capacity.
As shown in fig. 3, the interlocking mechanism 70 includes a standby interlocking lever 71 that is disposed on the opening and closing main shaft 501 of the standby power supply operating mechanism 53 in a linkage manner, a standby locking link 72 that is disposed on the opening and closing main shaft 501 of the standby power supply operating mechanism 54 in a linkage manner, a common interlocking lever 73 that is disposed on the opening and closing main shaft 501 of the standby power supply operating mechanism 54 in a linkage manner, and a common locking link 74 that is disposed on the common interlocking lever 73 in a linkage manner, wherein a first driving bump 721 that is disposed on one end of the standby locking link 72 and is in linkage engagement with a standby closing latch 541 of the standby power supply operating mechanism 54, and a second driving bump 741 that is disposed on one end of the common locking link 74 and is in linkage engagement with a common closing latch 531 of the common power supply operating mechanism 53. An interlocking mechanism is arranged between the common power supply operating mechanism and the standby power supply operating mechanism, so that the common power supply operating mechanism and the standby power supply operating mechanism can be prevented from simultaneously executing a closing action, the safety performance of the double-power-supply vacuum circuit breaker is improved, when the common power supply operating mechanism is in a closing state in operation, the standby locking connecting rod is abutted against the standby closing pawl, at the moment, the standby power supply operating mechanism is in a separating-gate state and cannot execute the closing action, and when the common power supply operating mechanism is in the separating-gate state, the standby locking connecting rod is unlocked, and the standby power supply operating mechanism adopts the closing action. When the standby power supply operating mechanism is in a switching-on state, the common locking connecting rod is abutted against the common switching-on pawl, and at the moment, the common power supply operating mechanism is in a switching-off state and cannot execute switching-on action. The dual-power solid-sealed pole 52 comprises an insulating column 524 arranged on a mechanism frame 51, a first insulating pull rod 525, a first conductive block 526, a first vacuum arc-extinguishing chamber 527, a conductive clamp 528, a second vacuum arc-extinguishing chamber 529, a second conductive block 5200 and a second insulating pull rod 5201 which are arranged in a linkage manner with a standby power supply operating mechanism 54, wherein the first insulating pull rod 525, the first conductive block 526, the first vacuum arc-extinguishing chamber 527, the conductive clamp 528, the second vacuum arc-extinguishing chamber 529, the second conductive block 5200 and the second insulating pull rod 5201 are sequentially arranged in the insulating column 524 from top to bottom, a first moving contact in the first vacuum arc-extinguishing chamber 527 is in linkage engagement with the first insulating pull rod 525, a second moving contact in the second vacuum arc-extinguishing chamber 529 is in linkage engagement with the second insulating pull rod 5201, and the first conductive block 526, the conductive clamp 528 and the second conductive block 5200 are respectively electrically connected with a common wire inlet 522, a wire outlet plum blossom contact 521 and a standby wire plum blossom contact 523. The dual-power solid-sealed pole is respectively provided with a first vacuum arc-extinguishing chamber and a second vacuum arc-extinguishing chamber, and the common power operating mechanism and the standby power operating mechanism drive the first vacuum arc-extinguishing chamber and the second vacuum arc-extinguishing chamber through the insulating pull rod respectively, so that the connection or disconnection of two power loops of the dual-power solid-sealed pole can be controlled.
The switch cabinet is characterized in that a circuit breaker chamber, an outgoing line chamber, a common power supply incoming line chamber, a common power supply monitoring chamber, a standby power supply incoming line chamber and a standby power supply monitoring chamber are respectively arranged on the cabinet body, the internal structure of the switch cabinet is reasonable in layout, internal electric elements cannot affect each other, and a double-power vacuum circuit breaker is arranged in the cabinet body, so that the switch cabinet can realize one-way common standby power supply, and when the common power supply suddenly fails or fails, the double-power vacuum circuit breaker can be automatically put into the standby power supply, so that equipment can still normally operate. Therefore, the dual-power switch cabinet has the advantages of simple structure, stable and reliable performance, reasonable structural layout, high safety and high breaking capacity.
Claims (2)
1. The utility model provides a dual power switch cabinet, includes the cabinet body, is qualified for the next round of competitions the module, often uses power inlet wire module, often uses power monitoring module, stand-by power inlet wire module, stand-by power monitoring module, dual power vacuum circuit breaker, sets up the chassis car on dual power vacuum circuit breaker, dual power vacuum circuit breaker include the machine frame, three setting is on one side of machine frame and have the dual power of two way power return circuits seal the utmost point post admittedly, the symmetry sets up on the machine frame and is used for driving dual power to seal the common power operating device and stand-by power operating device of utmost point post break-make, its characterized in that: the cabinet body on be provided with circuit breaker room, outlet chamber, common power inlet wire room, common power monitoring room, stand-by power inlet wire room, stand-by power monitoring room respectively, the module of being qualified for the next round of competitions, common power inlet wire module, common power monitoring module, stand-by power inlet wire module, stand-by power monitoring module, dual supply vacuum circuit breaker set up respectively in outlet chamber, common power inlet wire room, common power monitoring room, stand-by power inlet wire room, stand-by power monitoring room, circuit breaker room, the module of being qualified for the next round of competitions include the wire contact box that is connected with the plum blossom contact of being qualified for the next round of competitions of dual supply solid seal polar pole, three wire insulation support posts that are connected with wire contact box electricity, set up the female arranging of being qualified for the next round of competitions between three wire insulation support posts, common power monitoring module, stand-by power monitoring module, stand-by power monitoring module all include wire contact box, current transformer, sampling voltage transformer, arrester that are connected with current transformer electricity, knife switch, the common power inlet wire module, stand-by power inlet wire module all include three wire insulation stand-by upright post that is connected with current transformer electricity, the wire inlet busbar is arranged between the three wire inlet insulating upright posts, and the wire inlet contact boxes of the common power supply monitoring module and the standby power supply monitoring module are respectively connected to the common wire inlet plum blossom contact and the standby wire inlet plum blossom contact of the double-power-supply solid-sealed polar pole;
The device comprises a normal power supply operating mechanism and a standby power supply operating mechanism, wherein the normal power supply operating mechanism and the standby power supply operating mechanism both comprise a breaker operating module, a switching-on and switching-off main shaft which is arranged in linkage with the breaker operating module, a crank arm which is arranged in linkage with the switching-on and switching-off main shaft, a connecting plate which is arranged in linkage with the crank arm, and a force reducing connecting arm which is arranged on a machine frame in a rotating way and corresponds to the connecting plate;
A first spring seat is arranged at one end of the force reducing connecting arm corresponding to the brake separating spring, a second spring seat is arranged at the other end of the machine frame corresponding to the brake separating spring, and two ends of the brake separating spring are respectively arranged in the first spring seat and the second spring seat;
The dual-power solid-sealed polar pole comprises an insulating column arranged on a machine frame, a first insulating pull rod, a first conductive block, a first vacuum arc-extinguishing chamber, a conductive clamp, a second vacuum arc-extinguishing chamber, a second conductive block and a second insulating pull rod, wherein the first insulating pull rod, the first conductive block, the first vacuum arc-extinguishing chamber, the conductive clamp, the second vacuum arc-extinguishing chamber, the second conductive block and the second insulating pull rod are arranged in the insulating column from top to bottom in sequence, the first moving contact in the first vacuum arc-extinguishing chamber is in linkage fit with the first insulating pull rod, the second moving contact in the second vacuum arc-extinguishing chamber is in linkage fit with the second insulating pull rod, and the first conductive block, the conductive clamp and the second conductive block are respectively electrically connected with a common wire-incoming plum blossom contact, a wire-outgoing plum blossom contact and a standby wire-incoming plum blossom contact.
2. The dual-power switch cabinet of claim 1, wherein the interlocking mechanism comprises a standby interlocking crank arm arranged on a switching-on and switching-off main shaft of the common power supply operating mechanism in a linkage mode, a standby locking connecting rod arranged on the switching-on and switching-off main shaft of the standby power supply operating mechanism in a linkage mode, and a common locking connecting rod arranged on the common interlocking crank arm in a linkage mode, wherein one end of the standby locking connecting rod is provided with a first driving lug matched with a standby switching-on detent of the standby power supply operating mechanism in a linkage mode, and one end of the common locking connecting rod is provided with a second driving lug matched with the common switching-on detent of the common power supply operating mechanism in a linkage mode.
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| CN202010732835.1A CN111786265B (en) | 2020-07-27 | 2020-07-27 | Dual power switch cabinet |
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| CN202010732835.1A CN111786265B (en) | 2020-07-27 | 2020-07-27 | Dual power switch cabinet |
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| CN111786265B true CN111786265B (en) | 2024-12-03 |
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| CN212343022U (en) * | 2020-07-27 | 2021-01-12 | 亨斯迈(杭州)电力技术有限公司 | Double-power switch cabinet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2008245334A (en) * | 2007-03-23 | 2008-10-09 | Fuji Electric Systems Co Ltd | Control center |
| JP5107276B2 (en) * | 2009-01-30 | 2012-12-26 | 株式会社日立製作所 | Vacuum insulated switchgear |
| CN102510007A (en) * | 2011-11-10 | 2012-06-20 | 杭州恒信电气有限公司 | Intelligent medium voltage switch cabinet |
| CN105633849A (en) * | 2014-10-27 | 2016-06-01 | 江苏华厦电力成套设备有限公司 | SF6 insulating vacuum boundary switch cabinet |
| CN105788953A (en) * | 2016-04-25 | 2016-07-20 | 宏秀电气有限公司 | Intelligent high voltage vacuum circuit breaker |
| CN206698009U (en) * | 2017-05-26 | 2017-12-01 | 任辉琴 | A kind of direct-current cabinet system for saving reliable dual power supply |
| CN209860412U (en) * | 2019-06-24 | 2019-12-27 | 比亚迪股份有限公司 | Switchgear |
| CN111354596B (en) * | 2020-04-10 | 2025-06-03 | 厦门兴厦控电气有限公司 | A vacuum circuit breaker with dual power switches |
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| CN212343022U (en) * | 2020-07-27 | 2021-01-12 | 亨斯迈(杭州)电力技术有限公司 | Double-power switch cabinet |
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