CN102683098A - Intelligent high-pressure vacuum circuit breaker - Google Patents
Intelligent high-pressure vacuum circuit breaker Download PDFInfo
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- CN102683098A CN102683098A CN2012101526320A CN201210152632A CN102683098A CN 102683098 A CN102683098 A CN 102683098A CN 2012101526320 A CN2012101526320 A CN 2012101526320A CN 201210152632 A CN201210152632 A CN 201210152632A CN 102683098 A CN102683098 A CN 102683098A
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Abstract
The invention discloses an intelligent high-pressure vacuum circuit breaker, which is provided with an intelligent observing and controlling device. The intelligent observing and controlling device is provided with an intelligent core device as a microprocessor; an operating mechanism and a vacuum circuit breaker body are of an integral structure; the operating mechanism and a vacuum arc extinguish chamber are arranged in front and back; and the vacuum arc extinguish chamber is longitudinally arranged in a tubular insulating cylinder. Through the technical scheme of the invention, dynamic monitoring on various parameters of current, voltage, operating positions, working environment, states and the like is realized, on-line state detection is carried out on a device, intelligent diagnosis, control and protection are carried out on the core control device, and analysis and process can be carried out on monitored data; maintenance is little or free; functions of automatic protection, automatic regulation, running state monitoring, intelligent operation, communication and the like are achieved; and a comprehensive solution is provided for the intelligentization of the high-pressure vacuum circuit breaker.
Description
Technical field
The invention belongs to the technical field of power switchgear, relate to the technology of high voltage switchgear, more particularly, the present invention relates to a kind of intelligent high-pressure vacuum breaker.
Background technology
In 7.2kV～40.5kV high voltage switchgear field; Reliability height, volume are little, in light weight owing to having for vacuum circuit-breaker, low noise and can in whole lifetime, accomplish few maintenance and series of advantages such as non-maintaining is widely used in the distribution system of every field such as power industry, industrial and mining enterprises, railway transportation, are one of indispensable main equipments of power industry production run.Because the high pressure field relates to problems such as insulation, electric field, vacuum circuit-breaker present stage mainly is that the core executive component as switchgear assembly is using, and the intelligent main intelligent high-voltage switchgear complete set of equipments that relies on of high voltage supply system is realized.
Because the intelligent high-voltage switchgear complete set of equipments adopts the complete function that realizes of a plurality of single elements.Single element is by different manufacturer production manufacturings, and the coupling of its system often can't reach optimum state, the coordination poor reliability of product.And the volume of equipment is big, and consumption of materials is many, and the manufacturing, commissioning test, Maintenance and Repair workload are big, and specification requirement is high.In addition, the circuit breaker inner parameter is difficult to obtain, and is difficult to accomplish to judge the remaining life of switchgear and calculate service interval.
Therefore; As low-voltage circuit breaker, utilize the microcomputer core cell, in conjunction with advanced measurement and sensor technology, it is inner to be integrated into intelligent vacuum circuit-breaker; It is had or surpass the high-pressure vacuum breaker of intelligent high-voltage switchgear complete set of equipments function, become the direction of development.
Summary of the invention
Problem to be solved by this invention provides a kind of intelligent high-pressure vacuum breaker, its objective is the solution anti-interference problem, improves its reliability, realizes the intellectuality of high-pressure vacuum breaker.
To achieve these goals, the technical scheme taked of the present invention is:
Intelligent high-pressure vacuum breaker provided by the present invention comprises vacuum circuit breaker body, operating mechanism, vacuum interrupter;
Described intelligent high-pressure vacuum breaker is provided with the intelligent measurement and control device, and described intelligent measurement and control device is provided with intelligent core devices, and described intelligent core devices is a microprocessor;
Described operating mechanism and described vacuum circuit breaker body adopt the structure of integral type;
Structures arranged form before and after described operating mechanism and vacuum interrupter adopt;
Described vacuum interrupter vertically is installed in the insulating cylinder of a tubulose.
Described intelligent measurement and control device is provided with resistance-type voltage divider, Rogowski current sensor, position transducer, temperature rise on-line measuring device, displacement transducer, infrared transmitter or wireless launcher, infrared remote receiver or wireless receiver, Mume flower contact, moisture sensor.
Described Rogowski current sensor is provided with hollow Luo Shi cell winding; A contact arm of described Rogowski current sensor places the central authorities of described Luo Shi cell winding, passes through the insulating part isolated insulation between a described Luo Shi cell winding and the described contact arm.
Described resistance-type voltage divider is provided with overvoltage protection; High voltage end at described resistance-type voltage divider is provided with the high-tension shielding cover; Low-pressure side at described resistance-type voltage divider is provided with the low pressure radome.
Described position transducer is the transducer of induction type, is assemblied in the nylon indicating dial opposite that is equipped with induction iron; Described position transducer is provided with LC oscillation circuit, pulse generator, output light emitting diode.
Described intelligent high-pressure vacuum breaker is provided with compensation Hall current sensor, and described compensation Hall current sensor is located at and closes, on the switching winding.
Described displacement transducer is located at the contact place of described intelligent high-pressure vacuum breaker, and described displacement transducer is the linear gradient magnetic field sensor, and the Hall plate of described linear gradient magnetic field sensor is fixed on the circuit breaker moving component; Described intelligent high-pressure vacuum breaker is provided with rotation light code sensor, and described rotation light code sensor is installed in the rotating shaft of circuit breaker operation mechanism.
Described temperature rise on-line measuring device is arranged on the bus connection place of described intelligent high-pressure vacuum breaker, and described temperature rise on-line measuring device comprises the temperature receiving system at temperature inversion, emitter and the electronegative potential place at temperature sensor, high potential place; Be provided with the punching transformer one time at described temperature inversion, launcher position,, solve the self-powered of high potential place temperature inversion, emitter through responding to the electric current of a contact arm; Described temperature sensor is delivered to described infrared transmitter or wireless launcher or fiber optic emitter to signal and is handled; Emission infrared beam or fiber-optic signal or wireless signal; Described infrared remote receiver or wireless receiver or fiber optic receiver and temperature receiving system; Receive the treatment temperature signal, deliver to described intelligent core devices and control.
Be fixedly connected with the insulated tension pole and the connector of rigidity under the moving contact of described intelligent high-pressure vacuum breaker; Between described connector and the operating mechanism final drive shaft overtravel spring is housed, the detection grating is set on the rigid member between overtravel spring and the insulated tension pole.
In described intelligent high-pressure vacuum breaker body, adopt frequency response>=10kHz ,≤acceleration transducer of 100kHz, described intelligent high-pressure vacuum breaker vibration signal is gathered; The signal line of described acceleration transducer is connected with described intelligent core devices.
The present invention adopts technique scheme; Microcomputer measurement, Microcomputer Protection will be arranged, with function such as supervisory control system main-machine communication and have on-line monitoring and the discrete component equipment of a plurality of difference in functionalitys of diagnostic function; In conjunction with advanced measurement and sensor technology, it is inner to be integrated into intelligent vacuum circuit-breaker, it is had and surpasses the function of intelligent high-voltage switchgear complete set of equipments; Realized dynamic monitoring to various parameters such as electric current, voltage, operating position, operational environment and states; Equipment is carried out presence detect, supply kernel control chip to carry out intellectuality diagnosis, control and protection, can analyze and handle the data that monitor; Few maintenance or non-maintaining; Possess functions such as automatic protection, auto-control, running state monitoring, intellectualized operation, communication; For the intellectuality of high-pressure vacuum breaker provides more comprehensive solution.
Description of drawings
The mark of facing down among expressed content of each width of cloth accompanying drawing of this specification and the figure is made brief description:
Fig. 1 is an intelligent high-pressure vacuum breaker structural representation of the present invention;
Fig. 2 is an intelligent high-pressure vacuum breaker theory diagram of the present invention;
Fig. 3 is a hardware block diagram of the present invention;
Fig. 4 is an intelligent protection measurement mechanism sketch map of the present invention;
Fig. 5 is the circuit diagram of Rogowski current sensor of the present invention;
Fig. 6 is the structural representation of Rogowski current sensor of the present invention;
Fig. 7 is the circuit diagram of resistance-type voltage divider among the present invention;
Fig. 8 is the structural representation of resistance-type voltage divider among the present invention;
Fig. 9 is the internal structure sketch map of the inductive position sensor among the present invention;
Figure 10 is the mounting structure sketch map of the inductive position sensor among the present invention;
Figure 11 is for the bistable state among the present invention is closed, the structural representation of tripping electromagnet;
Figure 12 is for the bistable state among the present invention is closed, the current waveform sketch map of tripping electromagnet;
Figure 13 is the structural representation of the temperature measuring equipment among the present invention.
Be labeled as among the figure:
1, pole, 2, operating mechanism (comprising various supporting transducers), 3, vacuum circuit breaker body, 4, intelligent core devices, 5, the resistance-type voltage divider; 6, vacuum interrupter, 7, the Rogowski current sensor, 8, infrared remote receiver (or wireless receiver, or fiber optic receiver), 9, infrared transmitter (or wireless launcher; Or fiber optic emitter), insulating part 10, Mume flower contact, 11, moisture sensor, 12, the Luo Shi cell winding, 13; 14, contact arm, 15, voltage divider primary connection end, 16, voltage divider secondary connection end, 17, the position transducer housing, 18, the LC oscillation circuit; 19, operating surface, 20, pulse generator, 21, output light emitting diode, 22, power transmission shaft; 23, support, 24, (induction type) position transducer, 25, induction iron, 26, the nylon indicating dial; 27, viscous motion wheel, 28, the circuit breaker contact arm, 29, transformer, 30, temperature inversion, emitter (high potential place); 31, IR (or optical fiber, wireless), 32, power supply, 33, temperature receiving system (electronegative potential place), 34, temperature sensor.
Embodiment
Contrast accompanying drawing below, through the description to embodiment, specific embodiments of the invention is done further detailed explanation, to help those skilled in the art inventive concept of the present invention, technical scheme is had more complete, accurate and deep understanding.
The of the present invention structure expressed like Fig. 1 to Figure 13 is intelligent high-pressure vacuum breaker, comprises vacuum circuit breaker body 3, operating mechanism 2, vacuum interrupter 6.
In order to solve the problem that exists at the described present known technology of this specification background technology part and to overcome its defective; Realize solving anti-interference problem; Improve its reliability, realize the intelligentized goal of the invention of high-pressure vacuum breaker, the technical scheme that the present invention takes is:
As shown in Figure 1, to achieve these goals, the technical scheme that the present invention takes is:
Intelligent high-pressure vacuum breaker provided by the present invention is provided with the intelligent measurement and control device, and described intelligent measurement and control device is provided with intelligent core devices 4, and described intelligent core devices 4 is microprocessor;
Described operating mechanism 2 and described vacuum circuit breaker body 3 adopt the structure of integral types;
Structures arranged form before and after described operating mechanism 2 adopts with vacuum interrupter 6;
Described vacuum interrupter 6 vertically is installed in the insulating cylinder of a tubulose.Be in the pole 1 shown in Fig. 1.
The present invention analyzes the prior art and the developing direction of high voltage device; New operating mechanism (permanent magnet mechanism and novel spring) is proposed; Through to microcomputer control unit; Elements such as novel electron PT, electronics CT, temperature, vacuum detecting, position and transducer are innovated and are improved, and it is progressively organically combined; And utilize some present mature experiences to solve anti-interference problem, improve its reliability, realize the intellectuality of high-pressure vacuum breaker.
One, the structural key of intelligent high-pressure vacuum breaker and principle:
Intelligent high-pressure vacuum breaker comprises three parts: vacuum circuit breaker body, operating mechanism, Based Intelligent Control (contain and measure sensing, communication etc.).What the present invention relates to is the middle structure, as shown in Figure 1.
Intelligent high-pressure vacuum breaker is to have on the high-pressure vacuum breaker basis of novel permanent magnetic or spring operating mechanism; Have microcomputer measurement, Microcomputer Protection, microcomputer OBD, the core intelligence function element of a plurality of difference in functionalitys of function such as communicate by letter with the supervisory control system host computer; In conjunction with measuring and sensor technology; Be integrated into vacuum circuit-breaker inside; It is had and surpass the function of intelligent high-voltage switchgear complete set of equipments, realize functions such as control protection, measurement and switching devices self-operating state on_line monitoring electric power system.Parameters of electric power such as electrical network three-phase voltage, three-phase current, active power, reactive power, power factor and electric energy are measured; Have band time overcurrent, current quick-breaking and one-phase ground protection function, and the failure wave-recording function is arranged, the current waveform in 10 cycles before and after the record electric network fault; Have on-line monitoring and diagnostic function, can analyze and handle the data that monitor.
In addition, intelligent cell has the RS-485 communication interface, can be connected with the monitoring host computer of comprehensive automation system of transformer substation and communicate by letter, and its functional block diagram is seen Fig. 2.
Two, the kernel control chip of intelligent measurement and control device configuration:
As shown in Figure 3, the core devices of intelligent measurement and control device is a microprocessor, and it fully adopts 32-bit number signal processor (DSP); Device adopts dual-cpu structure; Its TMSVC5410 bears calculating, and MSP430F149 controls communication, and the XC95144X chip is realized logic control; The MAX125 chip is realized analog-to-digital conversion, and accomplishes the high speed data delivery between DSP and single-chip microcomputer through the HPI mouth.The core of dsp software is that the algorithm of inhibition high order harmonic component is write and the Microcomputer Protection algorithm is write; Through gathering voltage and current signal, circuit breaker position and status signal and switching value input signal; Implement fast fourier algorithm, FFT carries out filtering, to the Measurement and analysis of charge value and each harmonic; Realization is to the real-time detection of electrical network; Comprise data processing algorithm, sampling number and the utilizations such as selection in the initial moment of sampling, with protection, supervision, control, measurement, demonstration and communicate by letter and roll into one, upload these information through communication interface.
Intelligent protection measurement mechanism and traditional secondary compared with techniques, its wiring is more succinct, compact, and function is abundanter, and has higher reliability, and complete keyboard, liquid crystal display, signal indication, menu operation are arranged on the guidance panel.Its typical structure is as shown in Figure 4.
Three, the various parameter detecting schemes of the present invention:
Intelligent measurement and control device of the present invention is provided with resistance-type voltage divider 5, Rogowski current sensor 7, position transducer 24, temperature rise on-line measuring device, displacement transducer, infrared transmitter 9 or wireless launcher, infrared remote receiver 8 or wireless receiver, Mume flower contact 10, moisture sensor 11.
To the function of primary cut-out at aspects such as intellectuality control and parameter acquisitions; The present invention adopts the formation and the function thereof of DSP kernel control chip; To have microcomputer measurement, Microcomputer Protection, with the discrete component equipment of a plurality of difference in functionalitys of function such as supervisory control system main-machine communication; In conjunction with advanced measurement and sensor technology, it is inner to be integrated into intelligent vacuum circuit-breaker, it is had and surpasses the high-pressure vacuum breaker of intelligent high-voltage switchgear complete set of equipments function.
Through modules such as development and Design Rogowski current sensor 7, resistance-type voltage divider 5, position transducers 24; And organic combination; Realized dynamic monitoring, supplied kernel control chip to carry out intellectuality diagnosis, control and protection various parameters such as electric current, voltage, operating position, operational environment and states.For the intellectuality of high-pressure vacuum breaker provides more comprehensive solution.
Four, circuit breaker one action current monitoring scheme:
As shown in Figure 6, Rogowski current sensor 7 of the present invention is provided with hollow Luo Shi cell winding 12; A contact arm 14 of described Rogowski current sensor 7 places the central authorities of described Luo Shi cell winding 12, passes through insulating part 13 isolated insulations between a described Luo Shi cell winding 12 and the described contact arm 14.
Like Fig. 5, shown in Figure 6; Rogowski coil current sensor 7; Be (on 6 * 5mm) skeletons around the air core coil of about 1000TS (circle) with the enamelled wire of Ф 0.2mm
; One time contact arm places coil central authorities; Therefore be isolated insulation between winding coil and the bus; Compare with traditional electromagnetic current transducer, it does not have saturation problem unshakable in one's determination, has excellent, the advantages such as size is little, light weight of transmission frequency bandwidth, interference free performance.If bus current I (t), turn number N, coil section amasss S, coil radius r, RL coil resistance, L self-induction of loop, R0 signal resistance; The induced electromotive force that then on coil, produces is:
, μ 0 is a magnetic permeability in the formula, output voltage does on signal resistance R0
The parameter of current sensor: input 0～5KA, output 0～1mV is enlarged into 0～5V through linearity, precision from 0.1% to 1%, frequency 0.1Hz supplies to measure protection and uses to 1MHz.
Five, circuit breaker one action voltage monitoring scheme:
Referring to resistance-type voltage divider 5 shown in Figure 1.Like Fig. 7 and shown in Figure 8, resistance-type voltage divider 5 of the present invention is provided with overvoltage protection; High voltage end at described resistance-type voltage divider 5 is provided with the high-tension shielding cover; Low-pressure side at described resistance-type voltage divider 5 is provided with the low pressure radome.
Adopt resistance-type voltage divider as shown in Figure 8 to monitor.Because measuring system input impedance is generally more than the 1M Ω; Therefore it is minimum to the influence of resistance-type voltage divider; If 12kV or 40.5kV system; Utilize resistance-type voltage divider shown in Figure 7; Primary voltage is transformed into 0～5V, and voltage ratio is k, and voltage ratio is:
.Because measuring system input impedance＞1M Ω is so R2 generally gets about 10k Ω.
Tv is an overvoltage protection, damages in case R2 occurs, can limit U2 voltage and raise, the protection measuring system.
In order to improve the precision of resitstance voltage divider, must adopt Rational structure and parameter.Generally the high voltage end at voltage divider adds the high-tension shielding cover, increases the stray capacitance of high-voltage connection to the voltage divider body, can offset the stray capacitance CG influence over the ground of voltage divider body.Add the low pressure radome in low-pressure side and then play control voltage divider body stray capacitance value over the ground.And want choose reasonable R1 size, and if R1 is too little, voltage divider then can flow through more multiple current, causes thermal losses too big, unfavorable resistance is stable, if R1 is too big, load circuit can influence the voltage ratio of voltage divider.
As shown in Figure 8, resistance-type voltage divider 5 is connected with voltage divider secondary connection end 16 through voltage divider primary connection end 15.
Six, operating position monitoring scheme:
Like Fig. 9 and shown in Figure 10, the position transducer 24 of induction type is assemblied in the nylon indicating dial opposite that is equipped with induction iron, obtains location status through induction iron 25 change in displacement.
Groundwork is can cause that according to eddy current loss in the electric conducting material resonant tank quality factor q value descends, and causes this principle of oscillatory extinction.
Produce by LC oscillation circuit 18; Operating surface 19 places at described position transducer 24 present stronger high frequency alternating electric field, if one electric conducting material (passive movement body) is arranged near operating surface 19 this moment, because the high frequency alternating electric field produces eddy current in electric conducting material; Consumed the energy of LC oscillation circuit 18; Its result reduces oscillation amplitude, sends into subsequent pulse generator 20 pulse-shaping stages, and pulse-shaping stage changes according to the input oscillation amplitude; Produce the very steep pulse of rising edge, the input transistors driving stage produces the signal of a 10～30V.
The light-emitting diode 21 that is contained in the transducer shows slave mode.
In the other end, utilize one three core to gather fluorine ester insulated conductor operating voltage is provided, and obtain measured signal.Through suitable selection operation face 19 positions, inductosyn is detecting operation position very accurately just.
Described position transducer 24 is installed through support 23.The motion of induction iron 25 is passed through the transmission mechanism transmission by power transmission shaft 22.Answer the motion of iron 25 for sense of control, also be provided with viscous motion wheel 27.
Because this transducer is sealed in the position transducer housing 17, environmental change such as heavy pollution, burn into high temperature, external magnetic field etc. can not influence sensor performance, because non-contact, have avoided because of the loose contact due to surface corrosion, the scaling loss yet.
In addition, because sensor bulk is little, and the band external screw thread, so installation is very convenient.Increase and settle the inductosyn number, can increase the observation physical quantity.Contactless, contactless, the no scaling loss of this inductosyn can be used in the frequent occasion of operation, uses this electronic type inductosyn, can reach the non-maintaining and high life.
Seven, circuit breaker close, the monitoring scheme of switching winding electric current:
Described intelligent high-pressure vacuum breaker is provided with compensation Hall current sensor, and described compensation Hall current sensor is located at and closes, on the switching winding.Shown in figure 11.
Experience shows: the information that close, the electric current of switching winding can be used as the diagnosis mechanical breakdown, close, the current signal of switching winding can provide by compensation Hall current sensor.Provide close, the current signal of switching winding is shown in figure 12.
Eight, the monitoring scheme of contact travel, speed:
Displacement transducer of the present invention is located at the contact place of described intelligent high-pressure vacuum breaker, and described displacement transducer is the linear gradient magnetic field sensor, and the Hall plate of described linear gradient magnetic field sensor is fixed on the circuit breaker moving component; Described intelligent high-pressure vacuum breaker is provided with rotation light code sensor, and described rotation light code sensor is installed in the rotating shaft of circuit breaker operation mechanism.
The contact of breaker just-off speed is very big to the arc extinction performance influence.Suitably improve just-off speed, the scaling loss that reduces arc energy, reduces parts is had great role, differ and improve arc extinction performance surely, can increase the weight of the burden of operating mechanism on the contrary but too increase just-off speed; Same contact of breaker closing speed also has very big influence to arc extinction performance.Therefore, be very important to the stroke of contact of breaker, the measurement and the on-line monitoring of speed characteristics.In order to accomplish correct measurement, must choose suitable displacement transducer.
1, the linear gradient magnetic field sensor is fixed on Hall plate on the circuit breaker moving component; On Hall plate, add a constant Control current; The moving component that Hall plate is housed is moved in linear gradient magnetic, then on Hall plate, set up voltage, as long as measure voltage on the Hall plate; Just can try to achieve the arbitrary instantaneous stroke of contact, can accomplish the stroke and the tachometric survey of the contact of circuit breaker.
The vacuum circuit-breaker electric pressure is different, and its contact travel is different, and for example, 7.2～12kV contacts for vacuum-break switches stroke is 10mm, and 40.5kV contacts for vacuum-break switches stroke is 25mm.Can design by the contact travel size and produce the linear gradient field coil, to satisfy the requirement of Displacement Measurement, speed.
2, rotation light code sensor utilizes increment type rotation light code sensor, can accomplish the measurement of rotational angle and direction.
Rotation light code sensor is installed in the rotating shaft of circuit breaker operation mechanism.Increment type rotation light coding generally has three code channels (A, B, Z road), and A road and B road differ 90 ℃, and code-bar number weekly can be chosen according to Measurement Resolution, and the Z road is bar on every Mondays, is used for confirming number of revolutions.When axle rotated, encoder output A road, B road two-way differed the orthogonal pulses at 90 ℃ of angles, input signal treatment circuit; From the A road, the relative position of B road two signals can confirm the rotation direction of rotating shaft: if the A road is prior to the B road; Be positive rotation, and the B road is despining prior to the A road.Again through add, down counter is to A road, B road two paths of signals counting; Can obtain rotational angle size and direction; Move and rebound thereby can measure the circuit breaker motion parts, can calculate moving contact stroke, divide-shut brake synchronism, average speed, overtravel, firm branch back or just close the interior speed of preceding 10ms etc.
Nine, the on-line monitoring scheme of bus connection place overheating:
Temperature rise on-line measuring device of the present invention is arranged on the bus connection place of described intelligent high-pressure vacuum breaker, and described temperature rise on-line measuring device comprises the temperature receiving system 33 at temperature inversion, emitter 30 and the electronegative potential place at temperature sensor 34, high potential place; Be provided with the punching transformer one time in described temperature inversion, emitter 30 positions,, solve the self-powered of high potential place temperature inversion, emitter 30 through responding to the electric current of a contact arm; Described temperature sensor 34 is delivered to described infrared transmitter 9 or wireless launcher or fiber optic emitter to signal and is handled; Emission infrared beam or fiber-optic signal or wireless signal; Described infrared remote receiver 8 or wireless receiver or fiber optic receiver and temperature receiving system 33; Receive the treatment temperature signal, deliver to described intelligent core devices 4 and control.
Bus connection place temperature rise on-line measuring device principle is shown in figure 13; This figure is two temperature measuring equipments on right side among Fig. 1; Temperature inversion, emitter place are provided with the punching transformer one time; Transformer 29 in promptly scheming, what reflect among the figure is the structure of transformer silicon steel sheet, solves the self-powered of high potential place temperature sense emitter through the electric current of responding to a contact arm (being a contact arm 14 among Fig. 6); Temperature sensor 34 is delivered to infrared (or light pricker, wireless) to signal, and reflector is handled, and temperature inversion, emitter 30 and infrared transmitter 9 provide electric power by power supply 32; Emission infrared beam (or light pricker, wireless); IR 31 shown in figure; Infrared light (or light pricker, wireless) receiver and temperature receiving and processing device receive processing signals in the electronegative potential place, deliver to core controller and control; Realize the on-line monitoring of bus connection place overheating, also solved Insulation Problems simultaneously.
A contact arm also is the circuit breaker contact arm 28 among this figure referring to shown in Figure 6.Mume flower contact 10 is installed on the circuit breaker contact arm 28.Direction 13 shown in Fig. 6 and the Tu differs 90 °.
Ten, the wearing and tearing thickness on-line monitoring scheme of dynamic and static contact:
Be fixedly connected with the insulated tension pole and the connector of rigidity under the moving contact of intelligent high-pressure vacuum breaker of the present invention; Between described connector and the operating mechanism final drive shaft overtravel spring is housed, the detection grating is set on the rigid member between overtravel spring and the insulated tension pole.
Under the vacuum circuit-breaker moving contact, be fixedly connected with the insulated tension pole and the connector of rigidity; Between connector and the operating mechanism final drive shaft overtravel spring is housed, installing detects grating on the rigid member between overtravel spring and the insulated tension pole, owing to be rigidly connected between connector and moving contact; The relative displacement of detection signal output; The abrasion condition that has directly reflected dynamic and static contact, thus can detect the wearing and tearing thickness of dynamic and static contact, judge life of product; Also observe simultaneously opening of vacuum circuit-breaker apart from value.
11, vibration signal monitoring scheme during mechanism's actuating:
In intelligent high-pressure vacuum breaker body of the present invention, adopt frequency response>=10kHz ,≤acceleration transducer of 100kHz, described intelligent high-pressure vacuum breaker vibration signal is gathered; The signal line of described acceleration transducer is connected with described intelligent core devices 4.
In the body that opens circuit, the employing frequency response is that the acceleration transducer of tens kHz can be gathered vibration signal, can obtain a series of amounts that reflect the circuit breaker vibration parameters through signal processing unit again, and whether the mechanical property that can declare circuit breaker is normal.
Combine accompanying drawing that the present invention has been carried out exemplary description above; Obviously the concrete realization of the present invention does not receive the restriction of aforesaid way; As long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; Or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (10)
1. an intelligent high-pressure vacuum breaker comprises vacuum circuit breaker body (3), operating mechanism (2), vacuum interrupter (6), it is characterized in that:
Described intelligent high-pressure vacuum breaker is provided with the intelligent measurement and control device, and described intelligent measurement and control device is provided with intelligent core devices (4), and described intelligent core devices (4) is a microprocessor;
Described operating mechanism (2) and described vacuum circuit breaker body (3) adopt the structure of integral type;
Structures arranged form before and after described operating mechanism (2) and vacuum interrupter (6) adopt;
Described vacuum interrupter (6) vertically is installed in the insulating cylinder of a tubulose.
2. according to the described intelligent high-pressure vacuum breaker of claim 1, it is characterized in that: described intelligent measurement and control device is provided with resistance-type voltage divider (5), Rogowski current sensor (7), position transducer (24), temperature rise on-line measuring device, displacement transducer, infrared transmitter (9) or wireless launcher, infrared remote receiver (8) or wireless receiver, Mume flower contact (10), moisture sensor (11).
3. according to the described intelligent high-pressure vacuum breaker of claim 2, it is characterized in that: described Rogowski current sensor (7) is provided with hollow Luo Shi cell winding (12); A contact arm (14) of described Rogowski current sensor (7) places the central authorities of described Luo Shi cell winding (12), passes through insulating part (13) isolated insulation between a described Luo Shi cell winding (12) and the described contact arm (14).
4. according to the described intelligent high-pressure vacuum breaker of claim 2, it is characterized in that: described resistance-type voltage divider (5) is provided with overvoltage protection; High voltage end at described resistance-type voltage divider (5) is provided with the high-tension shielding cover; Low-pressure side at described resistance-type voltage divider (5) is provided with the low pressure radome.
5. according to the described intelligent high-pressure vacuum breaker of claim 2, it is characterized in that: described position transducer (24) is the transducer of induction type, is assemblied in nylon indicating dial (26) opposite that is equipped with induction iron (25); Described position transducer (24) is provided with LC oscillation circuit (18), pulse generator (20), output light emitting diode (21).
6. according to claim 1 or 2 described intelligent high-pressure vacuum breakers, it is characterized in that: described intelligent high-pressure vacuum breaker is provided with compensation Hall current sensor, and described compensation Hall current sensor is located at and closes, on the switching winding.
7. according to the described intelligent high-pressure vacuum breaker of claim 2; It is characterized in that: described displacement transducer is located at the contact place of described intelligent high-pressure vacuum breaker; Described displacement transducer is the linear gradient magnetic field sensor, and the Hall plate of described linear gradient magnetic field sensor is fixed on the circuit breaker moving component; Described intelligent high-pressure vacuum breaker is provided with rotation light code sensor, and described rotation light code sensor is installed in the rotating shaft of circuit breaker operation mechanism.
8. according to the described intelligent high-pressure vacuum breaker of claim 2; It is characterized in that: described temperature rise on-line measuring device is arranged on the bus connection place of described intelligent high-pressure vacuum breaker, and described temperature rise on-line measuring device comprises the temperature receiving system (33) at temperature inversion, emitter (30) and the electronegative potential place at temperature sensor (34), high potential place; Be provided with the punching transformer one time in described temperature inversion, emitter (30) position,, solve the self-powered of high potential place temperature inversion, emitter (30) through responding to the electric current of a contact arm; Described temperature sensor (34) is delivered to described infrared transmitter (9) or wireless launcher or fiber optic emitter to signal and is handled; Emission infrared beam or fiber-optic signal or wireless signal; Described infrared remote receiver (8) or wireless receiver or fiber optic receiver and temperature receiving system (33); Receive the treatment temperature signal, deliver to described intelligent core devices (4) and control.Realize the on-line monitoring of bus connection place overheating, also solved Insulation Problems simultaneously.
9. according to claim 1 or 2 described intelligent high-pressure vacuum breakers; It is characterized in that: the insulated tension pole and the connector that are fixedly connected with rigidity under the moving contact of described intelligent high-pressure vacuum breaker; Between described connector and the operating mechanism final drive shaft overtravel spring is housed, the detection grating is set on the rigid member between overtravel spring and the insulated tension pole.
10. according to claim 1 or 2 described intelligent high-pressure vacuum breakers; It is characterized in that: in described intelligent high-pressure vacuum breaker body; Adopt frequency response>=10kHz ,≤acceleration transducer of 100kHz, described intelligent high-pressure vacuum breaker vibration signal is gathered; The signal line of described acceleration transducer is connected with described intelligent core devices (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101526320A CN102683098A (en) | 2012-05-17 | 2012-05-17 | Intelligent high-pressure vacuum circuit breaker |
Applications Claiming Priority (1)
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| CN103165342A (en) * | 2013-04-09 | 2013-06-19 | 滁州学院 | Intelligent controller for split phase type quick permanent magnet vacuum circuit breaker |
| CN103542825A (en) * | 2013-09-24 | 2014-01-29 | 许继集团有限公司 | Breaker travel measuring method and system |
| CN103618387A (en) * | 2013-12-10 | 2014-03-05 | 国家电网公司 | Intelligent device and method for sensing open and closed positions of high-voltage switch equipment |
| CN103744018A (en) * | 2014-01-16 | 2014-04-23 | 常州市明及电气技术开发有限公司 | On-line monitoring system aiming at high-voltage circuit breaker |
| CN104917062A (en) * | 2015-06-23 | 2015-09-16 | 曾杰阳 | Intelligent switch cabinet control system |
| CN105895459A (en) * | 2014-12-23 | 2016-08-24 | 常州帕斯菲克自动化技术股份有限公司 | Intelligent contact arm for circuit breaker |
| CN106024445A (en) * | 2016-06-27 | 2016-10-12 | 国网山东省电力公司蓬莱市供电公司 | Power circuit breaker |
| CN106356754A (en) * | 2015-07-15 | 2017-01-25 | Ls产电株式会社 | Structure of switchgear with arc eliminator |
| CN106444457A (en) * | 2016-11-10 | 2017-02-22 | 深圳市国立智能电力科技有限公司 | Permanent magnet vacuum circuit breaker control device |
| CN108242795A (en) * | 2018-02-05 | 2018-07-03 | 深圳曼顿科技有限公司 | Circuit safety management method, breaker and readable storage medium storing program for executing |
| WO2019157622A1 (en) * | 2018-02-13 | 2019-08-22 | Abb Schweiz Ag | Wireless sensing system and method for switchgear |
| WO2020171327A1 (en) * | 2019-02-18 | 2020-08-27 | 엘에스일렉트릭(주) | Motion sensing device for vacuum circuit breaker and vacuum circuit breaker comprising same |
| CN113241269A (en) * | 2021-04-26 | 2021-08-10 | 广西电网有限责任公司电力科学研究院 | GIS switch transmission device |
| WO2021212292A1 (en) * | 2020-04-20 | 2021-10-28 | Abb Schweiz Ag | Wireless sensing apparatus on bushing |
| CN116613006A (en) * | 2023-05-21 | 2023-08-18 | 江苏云峰科技股份有限公司 | Energy storage circuit breaker dynamic management system based on energy storage data analysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103165342A (en) * | 2013-04-09 | 2013-06-19 | 滁州学院 | Intelligent controller for split phase type quick permanent magnet vacuum circuit breaker |
| CN103542825A (en) * | 2013-09-24 | 2014-01-29 | 许继集团有限公司 | Breaker travel measuring method and system |
| CN103618387A (en) * | 2013-12-10 | 2014-03-05 | 国家电网公司 | Intelligent device and method for sensing open and closed positions of high-voltage switch equipment |
| CN103744018A (en) * | 2014-01-16 | 2014-04-23 | 常州市明及电气技术开发有限公司 | On-line monitoring system aiming at high-voltage circuit breaker |
| CN105895459A (en) * | 2014-12-23 | 2016-08-24 | 常州帕斯菲克自动化技术股份有限公司 | Intelligent contact arm for circuit breaker |
| CN105895459B (en) * | 2014-12-23 | 2018-09-18 | 常州帕斯菲克自动化技术股份有限公司 | The intelligent contact arm of breaker |
| CN104917062A (en) * | 2015-06-23 | 2015-09-16 | 曾杰阳 | Intelligent switch cabinet control system |
| US10020643B2 (en) | 2015-07-15 | 2018-07-10 | Lsis Co., Ltd. | Structure of switchgear with arc eliminator |
| CN106356754A (en) * | 2015-07-15 | 2017-01-25 | Ls产电株式会社 | Structure of switchgear with arc eliminator |
| CN106024445A (en) * | 2016-06-27 | 2016-10-12 | 国网山东省电力公司蓬莱市供电公司 | Power circuit breaker |
| CN106444457A (en) * | 2016-11-10 | 2017-02-22 | 深圳市国立智能电力科技有限公司 | Permanent magnet vacuum circuit breaker control device |
| CN108242795B (en) * | 2018-02-05 | 2019-10-11 | 深圳曼顿科技有限公司 | Circuit safety management method, breaker and readable storage medium storing program for executing |
| CN108242795A (en) * | 2018-02-05 | 2018-07-03 | 深圳曼顿科技有限公司 | Circuit safety management method, breaker and readable storage medium storing program for executing |
| EP3753037A4 (en) * | 2018-02-13 | 2021-09-15 | ABB Schweiz AG | Wireless sensing system and method for switchgear |
| CN111712896A (en) * | 2018-02-13 | 2020-09-25 | Abb瑞士股份有限公司 | Wireless sensing systems and methods for switching devices |
| WO2019157622A1 (en) * | 2018-02-13 | 2019-08-22 | Abb Schweiz Ag | Wireless sensing system and method for switchgear |
| CN111712896B (en) * | 2018-02-13 | 2022-11-01 | Abb瑞士股份有限公司 | Wireless sensing systems and methods for switching devices |
| WO2020171327A1 (en) * | 2019-02-18 | 2020-08-27 | 엘에스일렉트릭(주) | Motion sensing device for vacuum circuit breaker and vacuum circuit breaker comprising same |
| US11875954B2 (en) | 2019-02-18 | 2024-01-16 | Ls Electric Co., Ltd. | Motion sensing device for vacuum circuit breaker and vacuum circuit breaker comprising same |
| WO2021212292A1 (en) * | 2020-04-20 | 2021-10-28 | Abb Schweiz Ag | Wireless sensing apparatus on bushing |
| CN113241269A (en) * | 2021-04-26 | 2021-08-10 | 广西电网有限责任公司电力科学研究院 | GIS switch transmission device |
| CN116613006A (en) * | 2023-05-21 | 2023-08-18 | 江苏云峰科技股份有限公司 | Energy storage circuit breaker dynamic management system based on energy storage data analysis |
| CN116613006B (en) * | 2023-05-21 | 2024-01-30 | 江苏云峰科技股份有限公司 | Energy storage circuit breaker dynamic management system based on energy storage data analysis |
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