The intelligent pole type HVAC vacuum circuit breaker of a kind of full working scope
Technical field
The utility model is mainly concerned with electric power system high voltage switchgear field, refers in particular to the intelligent pole type HVAC vacuum circuit breaker of a kind of full working scope.
Background technology
In electric power system high voltage switchgear field, high-pressure vacuum breaker is the product be most widely used in power transmission and transforming equipment.Vacuum circuit-breaker with its highly reliable arc extinction performance and long-life, and does not have the advantage of pollution to environment and the person, captured the market of 40.5kV and following system completely, and the accreditation obtaining users because its volume is little, anti-pollution.
But according to incompletely statistics, the accident caused due to external insulation has accounted for 40.5kV and following more than 50%, therefore how effectively to ensure the insulation level of switch, it is one of important means reducing power system security accident.Because China occupies six kinds of climatic provinces that nine kinds of climate types are in the world classified, comprise damp and hot, sub-damp and hot, warm warm, cold warm, cold, xeothermic; Distinctive high altitude localities, height above sea level accounts for 33% of area more than the high original area of 2000m; The area that height above sea level surpasses 1000m reaches 58%, 1800 kilometers are had to cross over the damp and hot coastline taking cold area to, the Offshore of 4700000 square kilometres and petroleum resources contain the abundant Takla Makan Desert, under therefore the high voltage switchgear more than 60% of China all operates in special environmental requirement.
Traditional vacuum circuit-breaker is mostly solidly earthed neutral system, equipment operating environment requires low again, therefore its external insulation level is obviously very low, is difficult to be applicable to the occasion of the natural environments such as reliability requirement high and underground, plateau, coastal area and condition rather harsh.Simultaneously, along with intelligent grid construction, the development of associate power equipment and technical merit be also been proposed to the challenge of renewal, such as, how to improve the intelligent level of equipment, use Modern Transducer Technology, microprocessing and condition monitoring and fault diagnosis technology, significantly improve the miniaturization of switch, reliability, automation and intellectuality, make vacuum circuit-breaker can safe operation in the presence of a harsh environment, have again intellectuality, non-maintaining function, these have become switch industry problem anxious to be resolved all simultaneously.
Utility model content
The technical problems to be solved in the utility model is just: the technical problem existed for prior art, the utility model provides a kind of simple and compact for structure, intelligent pole type HVAC vacuum circuit breaker of good reliability, full working scope applied widely.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
The intelligent pole type HVAC vacuum circuit breaker of a kind of full working scope, comprise conducting rod, lower conducting rod, solid sealed pole of vacuum arc-extinguishing chamber, circuit breaker frame and operating mechanism, described solid sealed pole of vacuum arc-extinguishing chamber is installed in circuit breaker frame, described solid sealed pole of vacuum arc-extinguishing chamber comprises vacuum interrupter, pole and insulated tension pole, and described vacuum interrupter is positioned at pole and sealing becomes an entirety; Described insulated tension pole is positioned at the bottom of pole, and one end of described insulated tension pole is connected to the moved end of sealing final vacuum arc control device, and the other end of insulated tension pole is connected with action bars; The quiet end of the rear end electrical connection vacuum interrupter of described upper conducting rod, the moved end of described vacuum interrupter is connected with the assembly that is slidably connected, and the rear end of described lower conducting rod is connected with the assembly that is slidably connected.
As further improvement of the utility model: described insulated tension pole is fastened with the sealing gasket that pressure injection becomes towards one end of action bars, the periphery of described sealing gasket is anchored on pole by briquetting.
As further improvement of the utility model: the bottom of described pole is embedded with inflatable component.
As further improvement of the utility model: described pole is implanted into the ion column of monitoring vacuum degree, described pole is connected with photoelectric isolating device, passes the signal to vacuum degree on-line monitoring device after photoelectric isolating device Phototube Coupling.
As further improvement of the utility model: the surface of described upper conducting rod and lower conducting rod is provided with insulation silicon catheter and isolates, adopt compression type to connect when described upper conducting rod is connected with solid sealed pole of vacuum arc-extinguishing chamber with lower conducting rod, set up fluid silica gel sealing at interface.
As further improvement of the utility model: described operating mechanism comprises circuit breaker final drive shaft, transmission crank arm, divide-shut brake connecting lever, closing position transducer, open position transducer, divide-shut brake pull bar, intelligent controller; Described circuit breaker final drive shaft, transmission crank arm, divide-shut brake connecting lever, divide-shut brake pull bar are connected successively and drive divide-shut brake pull bar to have moved up and down point, close a floodgate; Described closing position transducer, open position transducer are used for detecting point, closing position signal, and position signalling are input to intelligent controller.
As further improvement of the utility model: temperature sensor is equipped with in the front end of described upper conducting rod, lower conducting rod, is sent to intelligent controller after collecting temperature signal.
As further improvement of the utility model: the bottom of described circuit breaker frame is equipped with electric chassis truck.
As further improvement of the utility model: described electric chassis truck is provided with the handcart rocking handle of Non-follow control chassis vehicle motion.
As further improvement of the utility model: the top of described circuit breaker frame is provided with aviation socket.
Compared with prior art, the utility model has the advantage of:
1, the intelligent pole type HVAC vacuum circuit breaker of full working scope of the present utility model, simple and compact for structure, intelligence degree of changing into is high, applied widely, except vacuum interrupter and main conductive circuit have employed advanced pole technology, the upper and lower conducting rod be connected with arc control device have employed dual pole type technology, and whole pole is hermetic, and dry air can be filled, ensure that circuit breaker safe operation when full working scope.Meanwhile, when ensureing properties and insulation level, the phase spacing of circuit breaker can do less, is conducive to the miniaturization of circuit breaker.
2, the intelligent pole type HVAC vacuum circuit breaker of full working scope of the present utility model, owing to being provided with multiple sensing device, be combined with intelligent controller, the on-line monitoring of circuit breaker and remote monitoring, failure predication can be realized easily, effectively ensure that the safe operation of system.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is side-looking structural representation of the present utility model.
Fig. 3 is backsight structural representation of the present utility model.
Fig. 4 is the sectional structure schematic diagram at A-A place in Fig. 3.
Fig. 5 is the structural representation of intelligent controller in the utility model.
Marginal data:
1, upper conducting rod; 2, lower conducting rod; 210, temperature sensor; 3, solid sealed pole of vacuum arc-extinguishing chamber; 301, vacuum interrupter; 302, pole; 303, insulated tension pole; 304, be slidably connected assembly; 305, action bars; 306, sealing gasket; 307, inflatable component; 308, ion column; 309, photoelectric isolating device; 310, vacuum degree on-line monitoring device; 4, handcart rocking handle; 5, electric chassis truck; 6, circuit breaker frame; 7, operating mechanism; 701, circuit breaker final drive shaft; 702, transmission crank arm; 703, divide-shut brake connecting lever; 704, closing position transducer; 705, open position transducer; 706, divide-shut brake pull bar; 8, aviation socket; 9, intelligent controller.
Embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
As shown in Fig. 1 ~ Fig. 5, the intelligent pole type HVAC vacuum circuit breaker of full working scope of the present utility model, comprise conducting rod 1, lower conducting rod 2, solid sealed pole of vacuum arc-extinguishing chamber 3, circuit breaker frame 6 and operating mechanism 7, solid sealed pole of vacuum arc-extinguishing chamber 3 is installed in circuit breaker frame 6, solid sealed pole of vacuum arc-extinguishing chamber 3 comprises vacuum interrupter 301, pole 302 and insulated tension pole 303, vacuum interrupter 301 is positioned at pole 302 and adopts advanced APG automatic gel pole technology by epoxy resin, and sealing becomes an entirety.
The rear end of upper conducting rod 1 is electrically connected the quiet end of vacuum interrupter 301 by upper electric conductor, the moved end of vacuum interrupter 301 is connected with the assembly 304 that is slidably connected, the rear end of lower conducting rod 2 is connected by lower electric conductor, fingertip spring and the assembly 304 that is slidably connected, thus constitutes the major loop of vacuum circuit-breaker.Insulated tension pole 303 is positioned at the bottom of pole 302, and one end of insulated tension pole 303 is connected to the moved end of sealing final vacuum arc control device 301, and the other end of insulated tension pole 303 is connected with action bars 305, and action bars 305 stretches out outside pole 302.
The sealing gasket 306 that silicon rubber pressure injection becomes is fastened with towards one end of action bars 305 at insulated tension pole 303.The periphery of sealing gasket 306 is anchored on pole 302 by briquetting, to ensure that the lower end of vacuum interrupter 301 does not contact with external environment condition, thus reaches the hermetically sealed of pole 302.
The bottom of pole 302 is embedded with inflatable component 307, can carry out vacuumize and annotate dry air or nitrogen, makes whole major loop completely not by ectocine, and can regularly replace that dry air or nitrogen reaches under full working scope can the object of safe operation.Meanwhile, can also vacuumize seal cavity by inflatable component 307 and fill dry air process, ensure that pole 302 not by under the impact, particularly condensation situation of external environment condition.Insulation property meet miniaturized requirement, have simplified the assembly work amount of vacuum interrupter 301 simultaneously, have been convenient to quality control and batch production.
In the present embodiment, the surface of upper conducting rod 1 and lower conducting rod 2 adopts the insulation technology of silicon catheter isolation, compression type is adopted to connect when being connected with solid sealed pole of vacuum arc-extinguishing chamber 3, and seal up silica gel docking port is all sealed up, ensure that conducting rod 1 and lower conducting rod 2 still can meet high-caliber insulating requirements under minimum phase spacing and distance to the ground.Due to the realization designed above, the pole 302 of vacuum circuit-breaker is made to reach hermetically sealed and all insulation, thus can safe operation under extremely harsh environmental condition.
In the present embodiment, operating mechanism 7 comprises circuit breaker final drive shaft 701, transmission crank arm 702, divide-shut brake connecting lever 703, closing position transducer 704, open position transducer 705, divide-shut brake pull bar 706, intelligent controller 9.The operating mechanism 7 of circuit breaker is when carrying out action, and circuit breaker final drive shaft 701 rotates, and circuit breaker final drive shaft 701 drives divide-shut brake pull bar 706 to move up and down by transmission crank arm 702, divide-shut brake connecting lever 703, thus circuit breaker is completed point, closing function.When divide-shut brake pull bar 706 moves, closing position transducer 704, open position transducer 705 will detect point, closing position signal, position signalling is input to intelligent controller 9, the time that intelligent controller 9 to be converted to point by input signal, close a floodgate, divide-shut brake speed can be drawn with stroke during the dispatching from the factory of pre-entered by metering.The divide-shut brake not same period that can draw circuit breaker is compared by the actuating signal of three groups of transducers.Intelligent controller 9 can by point, switching signal store calculate can record equally store point, closing frequencies, by the life cycle preset, can end to the time between overhauls(TBO) of circuit breaker and life-span and predict, thus achieve the intelligent monitoring of circuit breaker major mechanical characteristic.
In the present embodiment, be implanted into the ion column 308 of monitoring vacuum degree at pole 302, what be connected with pole 302 has photoelectric isolating device 309, can be used as simultaneously and supports pole 302 use, to improve dynamic, the thermally-stabilised level of circuit breaker.Pass the signal to vacuum degree on-line monitoring device 310 after Phototube Coupling, vacuum degree on-line monitoring device 310 passes the signal to vacuum circuit-breaker intelligent monitoring and controlling device again, and vacuum-degree monitoring can in 100pa ~ 10
-3pa, when vacuum degree is lower than 10
-2send prompting during pa to report to the police, when vacuum degree is lower than 10
-1long-time warning or cut-off breaker is sent during pa.
In the present embodiment, in the front end of upper conducting rod 1, lower conducting rod 2, temperature sensor 210 is housed, by wireless transmission signal to intelligent controller 9, by default temperature upper limit and the contrast of emergency opening value, temperature rise upper limit alarm and emergency opening signal can be sent, thus achieve the contact temperature rise intelligent monitoring of circuit breaker.All data of intelligent controller 9 all can be uploaded, and are combined the on-line monitoring and Based Intelligent Control that can realize circuit breaker completely with data center.
In the present embodiment, be equipped with electric chassis truck 5 further in the bottom of circuit breaker frame 6, electric chassis truck 5 drives screw mandrel operation can make to run before and after circuit breaker by motor, simultaneously can manual operation, also can electric operating.Like this, can be realized on the spot and remote operation by intelligent controller 9, have simultaneously and manually grasp function on the spot, namely be controlled by handcart rocking handle 4.
In the present embodiment, further the top of circuit breaker frame 6 is provided with aviation socket 8.
In sum, the intelligent pole type HVAC vacuum circuit breaker of full working scope of the present utility model is by have employed outside sealing technology by main conductive circuit such as vacuum interrupter 301 grade, the upper conducting rod 1 be connected with vacuum interrupter 301, lower conducting rod 2 have employed dual pole type technology, whole pole 302 is sealings, not by the impact of external environment, can safe operation under various harsh and unforgiving environments, can run under full working scope.Circuit breaker is furnished with that various transducer is combined with intelligent controller 9 can the main characteristic parameters of the reliable aspect of on-line monitoring breaker safe.By the highly sensitive position transducer installed and vacuum degree on-line monitoring device 310(as vacuum degree measurement transducer), by the delivery test data pre-entered in intelligent controller 9, as circuit breaker divide, closing time, point, closing speed is analyzed, judge that the mechanical property of circuit breaker is whether normal, point, whether closing circuit electric current, voltage normal.Vacuum sensor can detect the vacuum degree of vacuum circuit-breaker core component arc control device in real time, when vacuum degree obviously reduces, sends pre-alarm, when vacuum degree drops to dangerous values, and automatic cut-off breaker.Upper conducting rod 1, the lower conducting rod 2 moving contact place of circuit breaker are provided with six temperature sensors 210, can on-line monitoring run in contact temperature rise situation, by preset parameter comparison, pre-alarm and emergency opening can be realized.Thus ensure that the further expansion of accident.All can be uploaded by all data of communication interface, thus whole circuit breaker fully achieves intelligentized monitoring.
Below be only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, not departing from the some improvements and modifications under the utility model principle prerequisite, protection range of the present utility model should be considered as.