CN107390120A - Disconnecting switch mechanical load Intelligent live test device and method of testing - Google Patents

Disconnecting switch mechanical load Intelligent live test device and method of testing Download PDF

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Publication number
CN107390120A
CN107390120A CN201710618218.7A CN201710618218A CN107390120A CN 107390120 A CN107390120 A CN 107390120A CN 201710618218 A CN201710618218 A CN 201710618218A CN 107390120 A CN107390120 A CN 107390120A
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CN
China
Prior art keywords
unit
data
power
disconnecting switch
signal
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CN201710618218.7A
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Chinese (zh)
Inventor
罗道军
姚楠
王雷
华大鹏
尚光伟
陈柳宁
张朋飞
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Xi'an Ya Jian Power Technology Co Ltd
Nanyang Power Supply Co of State Grid Henan Electric Power Co Ltd
Original Assignee
Xi'an Ya Jian Power Technology Co Ltd
Nanyang Power Supply Co of State Grid Henan Electric Power Co Ltd
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Application filed by Xi'an Ya Jian Power Technology Co Ltd, Nanyang Power Supply Co of State Grid Henan Electric Power Co Ltd filed Critical Xi'an Ya Jian Power Technology Co Ltd
Priority to CN201710618218.7A priority Critical patent/CN107390120A/en
Publication of CN107390120A publication Critical patent/CN107390120A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3271Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices

Abstract

The invention discloses disconnecting switch mechanical load Intelligent live test device and method of testing, sampling unit and data processing unit including interconnection, the data processing unit includes embeded processor and the Date Conversion Unit, data communication units, data storage cell and the data display unit that are connected respectively with embeded processor, the sampling unit includes torque collecting unit, angle acquisition unit and power collecting unit, and the torque collecting unit includes torque sensor and the decoder being connected with the torque sensor by wireless transmit/receive units.The present invention using current mature sensor technology, computer technology, signal transacting and fault diagnosis technology, disconnecting switch mechanical performance is detected, analyzed, can it is objective, accurately disconnecting switch state is judged.

Description

Disconnecting switch mechanical load Intelligent live test device and method of testing
Technical field
The present invention relates to substation equipment test device and method of testing technical field, more particularly to disconnecting switch machinery are negative Carry Intelligent live test device and method of testing.
Background technology
High voltage isolator is the high-tension switch gear that usage amount is maximum in transformer station, and its theory structure is simple, but is worked Reliability requirement is high, because long-term tired be exposed in outdoor severe atmospheric environment works, and generally existing management in the process of running Insufficient, long-term phenomenon in bad repair, disconnecting switch easily expose various defects.High voltage isolator typical fault mainly includes leading Electrical circuit heating, Insulator detection, operation failure, corrosion etc., wherein, in addition to being generated heat except galvanic circle, other belong to mechanical event Barrier.For disconnecting switch overheat of conducting circuit failure, numerous studies work is carried out both at home and abroad, has developed infrared The detection methods such as thermometric, contact temperature Online Transaction Processing, sensing finger pressure detection technique and the powered polishing device of contact etc. are tieed up Equipment is protected, and proposes contact material and structural improvement scheme, but on high voltage isolator technology for mechanical fault diagnosis Research is not perfect at present, and according to statistics, mechanical breakdown accounts for the 70% of disconnecting switch whole failure, serious threat power grid security fortune OK, therefore its failure cause is analyzed and to study its diagnostic techniques significant.
Outdoor disconnector transmission link, which is directly exposed to undergo in air, to expose to the sun and rain, and usually number of operations is few, The transmission portions such as pivot pin, bearing lack lubrication and relative motion, therefore the situation of its operating mechanism generation bite is more.High pressure every The state-detection means for leaving pass rely primarily on infrared, contact resistance, ultrasound is carried out.
Ultrasound examination is to apply most common pillar porcelain insulator method of detection at present, and has formed professional standard, its Principle is by launching ultrasonic wave at insulator flange, receiving the reflected signal inside porcelain piece to detect insulator surface or interior The defects of crackle in portion.Operation power administrative department regulation is needed to pillar in high voltage isolator hand-over and preventive test Porcelain insulator carries out ultrasonic examination.However, the validity of ultrasound examination is relevant with the degree of coupling of insulator curvature with popping one's head in, Influenceed simultaneously by operation maintenance personnel experience, it is understood that there may be erroneous judgement.In addition, ultrasound examination is a kind of local damage detection method, its Detection range is limited only to the cm of insulator flange root 3 or so region, and can only be carried out when transformer station has a power failure, it is necessary to step on High operation, detection workload are larger.Infrared thermal imagery method is traditional insulator on-line detection method, mainly by detecting insulator Local pyrexia phenomenon determines its defective locations, also has related application in being diagnosed in the defects of disconnecting switch pillar porcelain insulator.
Infrared thermal imagery method is non-contact method, it is possible to achieve on-line testing, at present, many transformer stations are equipped with infrared heat As detection device.However, the validity of infrared thermal imagery method detection defect support insulator is by pollution level, background environment, air The influence of many factors such as condition, shooting angle, defective locations;Meanwhile if support insulator surface glaze layer and porcelain body compactness Well, moisture is difficult to penetrate into inside porcelain body, and therefore, temperature change caused by interior insulator crack defect is often not obvious enough, Easily cause flase drop or missing inspection.From the point of view of engineering application state, infrared thermal imagery method is appropriate only for large-scale Preliminary detection.
The direct external cause of ess-strain detection Rupture of Post Insulator is that stress is excessive, and ess-strain detection can be straight Connect the pillar porcelain insulator ess-strain size during measurement high voltage isolator breaking-closing operating.Using resistance strain gage As sensing element, insulator porcelain knob surface is pasted on, is accessed electric bridge by measuring line, and be connected to resistance-strain Instrument, the ess-strain size and situation of change that insulator porcelain knob bears can be measured in real time using strain acquirement and analysis software, according to This judges that insulator whether there is abnormal stress.In addition, also isolator operation torque size can be measured by this method.
In summary, only mechanical breakdown also neither one Validity Test means.The existing quality of product can only be relied on and prevented Rust performance, it is late if bite occurs, so present invention proposition is a kind of for the live testing device of mechanical breakdown and side Method, try hard to realize that the change to disconnecting switch mechanical load bite carries out live detection, find the hidden danger of mechanical breakdown in time.
The content of the invention
The technical problems to be solved by the invention are just to provide disconnecting switch mechanical load Intelligent live test device and survey Method for testing, using the sensor technology of current mature, computer technology, signal transacting and fault diagnosis technology, to isolation Switch mechanical performance detected, analyzed, can it is objective, accurately disconnecting switch state is judged.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:Disconnecting switch mechanical load Intelligent live is surveyed Trial assembly is put, and includes the sampling unit and data processing unit of interconnection, and the data processing unit includes embeded processor And Date Conversion Unit, data communication units, data storage cell and the data being connected respectively with embeded processor are shown Unit, the sampling unit include torque collecting unit, angle acquisition unit and power collecting unit.
Further, the torque collecting unit includes torque sensor and with the torque sensor by wirelessly receiving The decoder of bill member connection.
Further, the angle acquisition unit includes photoelectric sensor, and the photoelectric sensor includes photoelectric sensor With index dial group, the index dial is inhaled on mechanism to be measured output vertical tube by magnet, and photoelectric sensor support is inhaled by magnet In mechanism mounting bracket to be measured and it is directed at index dial tooth.
Further, the power collecting unit connects the three phase electric machine working power end of mechanism to be measured, collection voltages, electricity Flow signal, and output current, voltage and active power signal.
Further, the sampling unit is connected with the data processing unit with supply device, the supply device Including main power source module and distributed power supply module.
Further, the main power source module is connected with the data processing unit, including electric field energy energy-collecting device, rectification Device and battery, the electric field energy energy-collecting device include plate condenser, and the plate condenser is arranged at power equipment bus Alternating electric field in.
Further, the distributed power source is connected with the sampling unit, is powered using POE, is transmitted with electric power data Line is supply source circuit.
Further, the Date Conversion Unit includes pulse signal reading unit, AD conversion unit and filter unit, The pulse signal reading unit carries out concentration reading, the filter unit to each sensor pulse signal of the sampling unit Coefficient attenuation is taken signal to carry out anti-interference process.
Further, the data communication units include the ethernet line based on ICP/IP protocol stack.
Further, disconnecting switch mechanical load Intelligent live method of testing, comprises the following steps:
1)Torque collecting unit is arranged on the handle of operating mechanism to be measured, by torque sensor and its connects circuit by power Square signal is launched after being converted into numeral by radio module, and receiving module will input I/O interface circuits after digital demodulation signal;
2)Angle acquisition unit is arranged on mechanism main shaft, and the angular signal input I/ of main shaft is gathered by digital angle instrument O Interface circuit;
3)Power collecting unit is accessed to the AC three-phase motor working power end of mechanism to be measured, to voltage and current sampling, and Electric current, the voltage signal collected is handled, output current, voltage and active power data signal deliver to I/O interfaces electricity Road;
4)I/O interface circuits are handled signal by Date Conversion Unit, and signal after processing is transmitted to embedded place Device is managed, i.e. in CPU, CPU is sampled by flip angle pulses θ rhythm to torque signals M, obtains rotational angle theta and torque M numeral pass System, and generate M=F(θ)M curve, meanwhile, CPU is sampled according to flip angle pulses θ rhythm to power signal P, is turned Angle θ and power P numerical relation, and generate P=F(θ)Power curve;
5)The relation curve of the data collected and generation is respectively fed to data storage cell and is stored, is sent into number by CPU It has been shown that, while data are sent into host computer by data communication units, host computer according to the display of display unit Include expert system analysis software, can be by measured data compared with normal data, with going through by expert system analysis software History data compare, so as to judge the difference with normal data and historical data and recommend solution.
The beneficial effects are mainly as follows the following aspects:
1. the present invention devises the data acquisition unit of a whole set of integrated form, passed with torque sensor, angular transducer, power Sensor etc., design data collection, processing system, complete to its automatic measurement of divide-shut brake power output away from curve and power curve, It has been shown that, analysis, especially contrast, power collecting device can collect the power signal for sending and being arranged in motor drive mechanism to be measured, with Data mode shows, and the installation of sensor does not influence the original performance and reliability of equipment, device can in strong-electromagnetic field and Long-term reliably working in outdoor environment;
2. the sampling unit of the present invention sets suitable pulse, and sampled signal is divided immediately by data processing unit Analysis, the relation curve of the variable quantities such as power, time, angle is provided by processor, is easy to by studying various running statuses pair The influence of relation curve, such as changed power, rotational angle change, propose believable criterion or some characteristic values are set properly Threshold values, i.e. expert judgments;
3. the supply source unit of apparatus of the present invention is using the synergy of main power source and distributed power source, main power source application induction energy fetching Principle, induction energy fetching technology is applied in sensing device, reduces the complexity and degree of difficulty of supply source, can rationally utilize money Source, distributed power source are powered using distributed POE, can be while ensuring that existing structureization wiring is safe, moreover it is possible to protect The normal operation of each sensor is demonstrate,proved, reduces cost to greatest extent.
4. the present invention being capable of power of motor in accurate measurement isolator operation(Load)The data and history of change become Change trend;Rational judgment isolated switchgear state;Disconnecting switch new clothes, operation, service work are instructed, as repair based on condition of component Foundation, prevent the generation of electric power accident, ensure the safety of equipment operation;The application of device can greatly reduce disconnecting switch maintenance Working time, mitigate the labor intensity of service work personnel, so as to increase substantially labor productivity, strengthen and put into keeping apart The science of row state estimation.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and detailed description:
Fig. 1 is the test philosophy figure of torque of the present invention and angle acquisition flow.
Fig. 2 is the test philosophy figure of power collecting flow of the present invention.
Fig. 3 is torque sensor structural representation of the present invention.
Fig. 4 is photosensor structure schematic diagram of the present invention.
Embodiment
As shown in Figure 1 and Figure 2, disconnecting switch mechanical load Intelligent live test device, torque sensor, angle can be used Sensor, power sensor etc. are spent, design data collection, processing system, is completed to its divide-shut brake power output away from curve and power The automatic measurement of curve, display, analysis, contrast.Device is handled electric current, the voltage signal of collection, output current, voltage And active power data signal delivers to CPU;Simultaneously access main shaft angle signal, display real-time display electric current, voltage, power, Power perspective curve will be also drawn outside actuation time, rotational angle, it is to be checked to preserve measurement data.Test device includes mutually interconnecting The sampling unit and data processing unit connect, data processing unit include embeded processor and respectively with embeded processor Date Conversion Unit, data communication units, data storage cell and the data display unit of connection, sampling unit are adopted including torque Collect unit, angle acquisition unit and power collecting unit.Data communication units include the ethernet line based on ICP/IP protocol stack Road.
Torque collecting unit includes torque sensor and the decoding being connected with torque sensor by wireless transmit/receive units Device.Angle acquisition unit includes photoelectric sensor, and photoelectric sensor includes photoelectric sensor and index dial group, and index dial is by magnet Inhale on mechanism to be measured output vertical tube, photoelectric sensor support is inhaled in mechanism mounting bracket to be measured by magnet and is directed at indexing Disk tooth.Invention passes through nothing after torque signals are converted into numeral using the sensor and its circuit being arranged on operating mechanism handle Line electricity module is launched, and receiving module will input I/O interface circuits after digital demodulation signal.Numeral on mechanism main shaft simultaneously Inclinometer is also by the pulse input I/O interface circuits of main shaft.
In actual applications, moment of torsion can select the method for simple mechanism moment of torsion to be converted into the measurement to power and magnetic, hair Bright selection resistance strain type sensor, when metal runs into external force, the rise of its resistance value, it changes size can be by Hooke's law Calculating is got, as shown in figure 3, torque sensor simulates motor drive mechanism crank shape, when being operated manually to mechanism, sensing The value that device experiences moment variations converts thereof into electric signal, and is handled by wireless transmission to decoder.
According to field application environment, trough type photoelectric sensor can be selected, and configures index dial to ensure measurement accuracy, is such as schemed Shown in 4, photoelectric sensor is made up of photoelectric sensor and index dial.Index dial is inhaled on mechanism output vertical tube by magnet, light Electric inductor support is inhaled in mechanism mounting bracket by magnet and is directed at index dial tooth.
Power collecting unit connects the three phase electric machine working power end of mechanism to be measured, collection voltages, current signal, and exports Electric current, voltage and active power signal, to corresponding three phase electric machine working power access device three-phase output end, carry out voltage, Current acquisition;The pulse signal for gathering corresponding relation carries out current of electric feature signal extraction, and line storage of going forward side by side is encapsulated and led to Letter design, until completing data signal acquisition, digital-to-analogue conversion and I/0 output functions.
The core of data processing unit is read in embeded processor, i.e. CPU element, Date Conversion Unit including pulse signal Unit, AD conversion unit and filter unit are taken, pulse signal reading unit is entered to each sensor pulse signal of sampling unit Row, which is concentrated, to be read, and filter unit takes signal coefficient attenuation to carry out anti-interference process.CPU on the one hand will be by flip angle pulses θ Rhythm torque signals M is sampled, so as to obtain one group of rotational angle theta and torque M-digit relation, and generate M=F(θ)Curve. By the expert system analysis software of host computer by measured data compared with normal data, compared with historical data, so as to judge Go out the difference with normal data and historical data and recommend solution;On the other hand, CPU handles electric current, voltage and wattful power Rate data signal, draw the relation for the angle, θ that mechanism motor power output P turns over main shaft:P=F(θ), when finding accident defect Between graphical representation method, contrasted with the characterize data of standard one-to-one relationship situation, CPU can also be connected through Storage, the component, real-time display electric current, voltage, power, actuation time, rotational angle etc. such as display, and draw power, angle Degree, M curve, it is to be checked to preserve measurement data.
CPU can not only set suitable sample rate, and sampled signal is analyzed immediately, given by embeded processor Go out the relation curve of the variable quantities such as power, time;Also data are sent into host computer by data communication units, host computer Include expert system analysis software, can propose believable criterion according to research contents or some characteristic values are set properly Threshold values, i.e. expert judgments;Data platform is established simultaneously, records quantity of state changes in isolator operation data and history change Change trend;Expert system is established, state can be judged according to measurement result, and provide repair based on condition of component strategy;Pass through research device Hardware design and mobile network or Ethernet connected mode, important potential faults quickly, are easily sent out using mobile communication means Go out short message or mail notification.
Sampling unit is connected with data processing unit with supply device, and supply device includes main power source module and distribution Power module.Main power source module is connected with data processing unit, including electric field energy energy-collecting device, rectifier and battery, electric field Energy energy-collecting device includes plate condenser, and plate condenser is arranged in the alternating electric field of power equipment bus.Distributed power source It is connected with sampling unit, is powered using POE, using electric power data transmission line as supply source circuit.
Main power source includes electric field energy energy-collecting device, rectifier and battery, and electric field energy energy-collecting device includes plate condenser, Plate condenser is arranged in the alternating electric field of power equipment bus, and both ends induce Current Voltage, and electric field energy is converted into electricity Can, it is powered to load;The main power source application induction energy fetching principle of supply device, induction energy fetching technology is applied to sensing and filled In putting, mainly include electric field energy energy-collecting device, rectifier and battery, on the one hand, reduce the complexity and degree of difficulty of supply source, Resource can be rationally utilized, on the other hand, rectifier, battery are added in the power supply unit of induction energy fetching, wherein, rectifier Including reducing transformer and mu balanced circuit, to couple energy by collecting caused high-tension apparatus in environment, then by this energy The output of well-tuned is converted into, energy is provided for sensing unit and communication unit;Supply line can effectively be avoided in electric power Under the high current of rack bus, taking energy unit absorbs energy superfluous and scaling loss power circuit, reduces the caloric value of power supply, and will be more Remaining absorbing energy effectively is stored, and is caused in the case of can avoiding supply line's electric current as low current or power-off The electricity shortage of test equipment, ensure that taking energy portion part can export stabilized power source to test equipment, ensure that test equipment is persistently steady Fixed operation;And taking energy unit saturation can be prevented, and taking energy unit is sent momentary high power, strengthens draw-out power supply band Load capacity and adaptability.Electric field energy energy-collecting device collects caused high-tension line coupling energy in environment and is converted to electricity Can, it is stored in after rectified voltage regulation unit rectifying and voltage-stabilizing in battery and is powered for sensing unit.
The discharge and recharge of battery is mainly realized by the mu balanced circuit of rectifier, for setting for discharge and recharge mu balanced circuit Meter, with the development of power electronic devices, the technology and its system of high-power switch device such as insulated gate bipolar transistor IGBT It is increasingly mature to make technique, is obtained in converter, Active Power Filter-APF, rectifier, inverter, Dynamic Voltage Regulator etc. To successful application.This is when it is implemented, high-power sinusoidal signal, the signal can be produced using the circuit being made up of IGBT After boosted transformer boost and high-pressure series resonance circuit amplification, voltage class is up to high pressure, super-pressure, extra-high voltage rank. The mathematical modeling of frequency modulation type resonance extra-high voltage experiment power supply is established, and proposes voltage-regulation self-adjusting ratio on this basis The method of example-integral control method and new PI lock phase automatic frequency adjustments, so as to realize the pressure regulation of whole charge-discharge circuit and tune Frequently, the control method that we are carried is advantageous to eliminate the steady-state error of sensing device and improves the dynamic property of sensing device, easily In Project Realization, wherein, voltage stabilizing FREQUENCY CONTROL is mainly by triphase uncontrollable rectification circuit, H-bridge inverter circuit, output filter, Series resonant circuit forms.
Distributed power source is powered using POE, using electric power data transmission line as supply source circuit.To the section of each sampling unit Point, powered using distributed POE, by power transmission data and be used as power supply, so doing can just ensure now While having structured wiring safe, not only ensure the normal operation of existing network, moreover it is possible to ensure the normal operation of each sensor, Cost is reduced to greatest extent.IEEE 802.3af standards are the new standards based on POE system POE, and it is in IEEE The relevant criterion directly powered by netting twine is added on the basis of 802.3, is the extension of existing ethernet standard, and first The individual international standard on power distribution.
In summary, the present invention not only have developed it is a can to power input to machine in disconnecting switch action process (electricity Stream, voltage), the detection means of rotation time, a set of instant analysis system is established, to measurement gained power, the variable quantity such as time Relation curve is drawn out by coordinate system, studies influence of the various factors to relation curve, such as corrosion, parts deformation, spring Pressure change etc.;Also by the integrated treatment of CPU processor and host computer, data platform is established, is recorded in isolator operation The data and historical variations trend of quantity of state change, establish expert system, state can be judged according to measurement result, and provide shape State Strategies of Maintenance, so as to power of motor in accurate measurement isolator operation(Load)The data and historical variations of change Trend;Rational judgment isolated switchgear state;Instruct disconnecting switch new clothes, operation, service work, as repair based on condition of component according to According to preventing the generation of electric power accident, ensure the safety of equipment operation.
The present invention is first carried out sensor technology, computer technology, signal transacting, network technology and fault diagnosis technology Organically combine, realize and on-line checking, analysis are carried out to the power of disconnecting switch mechanical performance, reached it is objective, accurately to isolation The purpose that switch machine performance is judged.After disconnecting switch installation and debugging, detection is carried out to its state and can be determined that It whether there is primitiveness defect.The application of device can greatly reduce the disconnecting switch service work time, mitigate service work The labor intensity of personnel, so as to increase substantially labor productivity, strengthen the science that state estimation is carried out to disconnecting switch.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, this area is common Other modifications or equivalent substitution that technical staff is made to technical scheme, without departing from technical solution of the present invention Spirit and scope, all should cover among scope of the presently claimed invention.

Claims (10)

1. disconnecting switch mechanical load Intelligent live test device, it is characterised in that:Sampling unit and number including interconnection According to processing unit, the data processing unit includes embeded processor and the data being connected respectively with embeded processor turn Change unit, data communication units, data storage cell and data display unit, the sampling unit include torque collecting unit, Angle acquisition unit and power collecting unit.
2. disconnecting switch mechanical load Intelligent live test device as claimed in claim 1, it is characterised in that:The torque is adopted Collection unit includes torque sensor and the decoder being connected with the torque sensor by wireless transmit/receive units.
3. disconnecting switch mechanical load Intelligent live test device as claimed in claim 1, it is characterised in that:The angle is adopted Collection unit includes photoelectric sensor, and the photoelectric sensor includes photoelectric sensor and index dial group, and the index dial is by magnet Inhale on mechanism to be measured output vertical tube, photoelectric sensor support is inhaled in mechanism mounting bracket to be measured by magnet and is directed at indexing Disk tooth.
4. disconnecting switch mechanical load Intelligent live test device as claimed in claim 1, it is characterised in that:The power is adopted Collect the three phase electric machine working power end that unit connects mechanism to be measured, collection voltages, current signal, and output current, voltage and have Work(power signal.
5. disconnecting switch mechanical load Intelligent live test device as claimed in claim 1, it is characterised in that:The sampling is single First to be connected with the data processing unit with supply device, the supply device includes main power source module and distributed power source mould Block.
6. disconnecting switch mechanical load Intelligent live test device as claimed in claim 5, it is characterised in that:The main power source Module is connected with the data processing unit, including electric field energy energy-collecting device, rectifier and battery, and the electric field energy collection can fill Put including plate condenser, the plate condenser is arranged in the alternating electric field of power equipment bus.
7. disconnecting switch mechanical load Intelligent live test device as claimed in claim 5, it is characterised in that:The distribution Power supply is connected with the sampling unit, is powered using POE, using electric power data transmission line as supply source circuit.
8. disconnecting switch mechanical load Intelligent live test device as claimed in claim 1, it is characterised in that:The data turn Changing unit includes pulse signal reading unit, AD conversion unit and filter unit, and the pulse signal reading unit is to described Each sensor pulse signal of sampling unit carries out concentration reading, and the filter unit takes signal coefficient attenuation to resist Interference is handled.
9. disconnecting switch mechanical load Intelligent live test device as claimed in claim 1, it is characterised in that:The data are led to Letter unit includes the ethernet line based on ICP/IP protocol stack.
10. disconnecting switch mechanical load Intelligent live method of testing, it is characterised in that comprise the following steps:
1)Torque collecting unit is arranged on the handle of operating mechanism to be measured, by torque sensor and its connects circuit by power Square signal is launched after being converted into numeral by radio module, and receiving module will input I/O interface circuits after digital demodulation signal;
2)Angle acquisition unit is arranged on mechanism main shaft, and the angular signal input I/ of main shaft is gathered by digital angle instrument O Interface circuit;
3)Power collecting unit is accessed to the AC three-phase motor working power end of mechanism to be measured, to voltage and current sampling, and Electric current, the voltage signal collected is handled, output current, voltage and active power data signal deliver to I/O interfaces electricity Road;
4)I/O interface circuits are handled signal by Date Conversion Unit, and signal after processing is transmitted to embedded place Device is managed, i.e. in CPU, CPU is sampled by flip angle pulses θ rhythm to torque signals M, obtains rotational angle theta and torque M numeral pass System, and generate M=F(θ)M curve, meanwhile, CPU is sampled according to flip angle pulses θ rhythm to power signal P, is turned Angle θ and power P numerical relation, and generate P=F(θ)Power curve;
5)The relation curve of the data collected and generation is respectively fed to data storage cell and is stored, is sent into number by CPU It has been shown that, while data are sent into host computer by data communication units, host computer according to the display of display unit Include expert system analysis software, can be by measured data compared with normal data, with going through by expert system analysis software History data compare, so as to judge the difference with normal data and historical data and recommend solution.
CN201710618218.7A 2017-07-26 2017-07-26 Disconnecting switch mechanical load Intelligent live test device and method of testing Pending CN107390120A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108051190A (en) * 2017-11-30 2018-05-18 国网江苏省电力有限公司检修分公司 Disconnecting switch operating mechanism state analysis method based on main-shaft torque corner characteristic
CN108414200A (en) * 2018-02-14 2018-08-17 武汉大学 A kind of high voltage isolator mechanical defect diagnostic method
CN108801141A (en) * 2018-07-19 2018-11-13 国网上海市电力公司 Ultra-high-voltage isolation switch intelligent regulator calibration system based on laser measuring technique
CN109211543A (en) * 2018-07-28 2019-01-15 河南平高电气股份有限公司 A kind of disconnecting switch cryogenic test equipment and its mounting assembly
CN110726550A (en) * 2019-11-11 2020-01-24 国网河南省电力公司南阳供电公司 Intelligent monitoring system and method for OLTC transmission shaft of transformer
CN114355183A (en) * 2021-12-03 2022-04-15 云南电网有限责任公司红河供电局 Open type isolating switch mechanical fault diagnosis method based on rotating speed observation
CN115347678A (en) * 2022-10-13 2022-11-15 广东南海电力设计院工程有限公司 Protection system of outdoor high-voltage isolating switch

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202141589U (en) * 2011-07-01 2012-02-08 昆明益通美尔防雷工程有限公司 Intelligent on-line monitoring device for on-load tap-changer of transformer
US20130343910A1 (en) * 2012-06-07 2013-12-26 Asco Power Technologies, L.P. Methods and Systems for Monitoring a Power Supply for a Fire Pump Motor
CN104198929A (en) * 2014-07-14 2014-12-10 国网上海市电力公司 Detection device and detection method for outdoor high voltage isolator
CN104701992A (en) * 2015-03-26 2015-06-10 国网河南省电力公司平顶山供电公司 Monitoring device of electric power communication cabinet based on TCP/IP communication
CN106525396A (en) * 2016-10-20 2017-03-22 国网上海市电力公司 Automatic measurement apparatus of isolation switch mechanical load, and detection method of the same
WO2017071413A1 (en) * 2015-10-29 2017-05-04 全球能源互联网研究院 Synthesis circuit and method for testing direct current circuit breaker by means of composite injection of high voltage and large current
CN206945266U (en) * 2016-11-01 2018-01-30 唐恩(厦门)电气有限公司 A kind of disconnecting switch mechanical feature detection device
CN207301275U (en) * 2017-07-26 2018-05-01 国网河南省电力公司南阳供电公司 A kind of electric isolating switch performance testing device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202141589U (en) * 2011-07-01 2012-02-08 昆明益通美尔防雷工程有限公司 Intelligent on-line monitoring device for on-load tap-changer of transformer
US20130343910A1 (en) * 2012-06-07 2013-12-26 Asco Power Technologies, L.P. Methods and Systems for Monitoring a Power Supply for a Fire Pump Motor
CN104198929A (en) * 2014-07-14 2014-12-10 国网上海市电力公司 Detection device and detection method for outdoor high voltage isolator
CN104701992A (en) * 2015-03-26 2015-06-10 国网河南省电力公司平顶山供电公司 Monitoring device of electric power communication cabinet based on TCP/IP communication
WO2017071413A1 (en) * 2015-10-29 2017-05-04 全球能源互联网研究院 Synthesis circuit and method for testing direct current circuit breaker by means of composite injection of high voltage and large current
CN106525396A (en) * 2016-10-20 2017-03-22 国网上海市电力公司 Automatic measurement apparatus of isolation switch mechanical load, and detection method of the same
CN206945266U (en) * 2016-11-01 2018-01-30 唐恩(厦门)电气有限公司 A kind of disconnecting switch mechanical feature detection device
CN207301275U (en) * 2017-07-26 2018-05-01 国网河南省电力公司南阳供电公司 A kind of electric isolating switch performance testing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王栋: "隔离开关智能测试装置的设计", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108051190A (en) * 2017-11-30 2018-05-18 国网江苏省电力有限公司检修分公司 Disconnecting switch operating mechanism state analysis method based on main-shaft torque corner characteristic
CN108414200A (en) * 2018-02-14 2018-08-17 武汉大学 A kind of high voltage isolator mechanical defect diagnostic method
CN108801141A (en) * 2018-07-19 2018-11-13 国网上海市电力公司 Ultra-high-voltage isolation switch intelligent regulator calibration system based on laser measuring technique
CN109211543A (en) * 2018-07-28 2019-01-15 河南平高电气股份有限公司 A kind of disconnecting switch cryogenic test equipment and its mounting assembly
CN109211543B (en) * 2018-07-28 2020-11-20 河南平高电气股份有限公司 Low-temperature test device for isolating switch and mounting assembly thereof
CN110726550A (en) * 2019-11-11 2020-01-24 国网河南省电力公司南阳供电公司 Intelligent monitoring system and method for OLTC transmission shaft of transformer
CN110726550B (en) * 2019-11-11 2021-11-16 国网河南省电力公司南阳供电公司 Intelligent monitoring system and method for OLTC transmission shaft of transformer
CN114355183A (en) * 2021-12-03 2022-04-15 云南电网有限责任公司红河供电局 Open type isolating switch mechanical fault diagnosis method based on rotating speed observation
CN115347678A (en) * 2022-10-13 2022-11-15 广东南海电力设计院工程有限公司 Protection system of outdoor high-voltage isolating switch

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Application publication date: 20171124