CN105259397A - Electronic voltage transformer - Google Patents
Electronic voltage transformer Download PDFInfo
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- CN105259397A CN105259397A CN201510785106.1A CN201510785106A CN105259397A CN 105259397 A CN105259397 A CN 105259397A CN 201510785106 A CN201510785106 A CN 201510785106A CN 105259397 A CN105259397 A CN 105259397A
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- 230000005284 excitation Effects 0.000 claims abstract description 41
- 230000007547 defect Effects 0.000 claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 claims description 55
- 238000004891 communication Methods 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 42
- 230000008569 process Effects 0.000 claims description 40
- 238000012795 verification Methods 0.000 claims description 24
- 230000003750 conditioning effect Effects 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 13
- 239000013307 optical fiber Substances 0.000 claims description 13
- 230000002159 abnormal effect Effects 0.000 claims description 12
- 210000003127 knee Anatomy 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 7
- 230000010363 phase shift Effects 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
- G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
- G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
- G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
- G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J2005/0077—Imaging
Abstract
The invention relates to an electronic voltage transformer, which comprises an electronic voltage transformer main body, an excitation detector and a Freescale IMX 6 processing chip. The excitation detector is used for the excitation detection of the shell of the electronic voltage transformer main body. The Freescale IMX 6 processing chip is used for receiving the excitation detection result of the excitation detector and then determining the defect type of the shell of the electronic voltage transformer main body based on the above excitation detection result. According to the technical scheme of the invention, the structure of the electronic voltage transformer is optimized, while the self-detection on multiple parameters of the electronic voltage transformer can be realized at the same time.
Description
Technical field
The present invention relates to power domain, particularly relate to a kind of electronic type voltage transformer.
Background technology
Mutual inductor principle of work is as follows: in the circuit of power consumption, and electric current difference is from a few peace to a little Wan An, and voltage phase difference is from a few volt to millions of volt.In circuit, current/voltage is all higher, is breakneck as directly measured.Measure for ease of secondary instrument and need to be converted to more unified current/voltage, use mutual inductor to play the effect of variable flow and variable pressure and electrical isolation.Displaying Meter major part is the current voltmeter of pointer-type, so the secondary current great majority of current transformer are ampere level (as 5 etc.).Along with era development, electrical measurement reaches digitizing mostly, and the signal of the sampling of computing machine is generally milliampere level (0-5V, 4-20mA etc.).Micro-transformer of current secondary current is milliampere level, the main function served as bridge risen between large mutual inductor and sampling.Micro-transformer of current is referred to as " instrument current transformer ".
Along with developing rapidly of photoelectron technology, many scientific and technological developed countries turn to sight the electronic current mutual inductor utilizing optical sensing technology and electronics method to carry out Development of Novel, are called for short photoelectric current inductor.The standard of International Power association distributing electronic formula voltage transformer (VT).The implication of electronic mutual inductor, except comprising the mutual inductor of photo-electric, also comprises other various voltage, current sensor utilizing Electronic Testing principle.
But, the structural redundancy of electronic type voltage transformer of the prior art is high, involve great expense, use cost performance the power supply management department of voltage transformer (VT) too high in enormous quantities, simultaneously, electronic type voltage transformer of the prior art lacks the on-site parameters checkout equipment of some necessity, causes field data to transmit poor real, easily delays the processing time of field failure.
For this reason, the present invention proposes a kind of electronic type voltage transformer, first optimize the structure of electronic type voltage transformer of the prior art, improve its cost performance, increase some on-site parameters checkout equipments in addition, and increase self-detection mechanism, improve the intelligent level of electronic type voltage transformer.
Summary of the invention
In order to solve the technical matters that prior art exists, the invention provides a kind of electronic type voltage transformer, on the one hand, de-redundancy being carried out to the structure of electronic type voltage transformer of the prior art, while products quality guarantee, the structure of simplified apparatus; On the other hand, infrared thermoviewer and excitation imager are integrated into electronic type voltage transformer, promote the self-inspection performance of electronic type voltage transformer.
According to an aspect of the present invention, provide a kind of electronic type voltage transformer, described voltage transformer (VT) comprises electronic type voltage transformer main body, excitation detector and Freescale IMX6 process chip, described excitation detector is used for carrying out excitation detection to the shell of described electronic type voltage transformer main body, and described Freescale IMX6 process chip receives described excitation testing result and determines the defect kind of the shell of described electronic type voltage transformer main body based on described excitation testing result.
More specifically, in described electronic type voltage transformer, comprising: infrared thermoviewer, be arranged on the opposite of the first shell, for detecting the temperature of the first shell in real time, and when the temperature detected exceeds default case temperature range, send skin temperature abnormal signal; Excitation detector, excitation is carried out to obtain the excitation data fed back to the first shell, resistance scaled value when obtaining resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree according to excitation data, resistance scaled value during based on resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree determines the defect kind of the first shell; Electronic type voltage transformer main body, comprises the first shell, second housing, high voltage bus, air core coil, ironcore choke, signal conditioning circuit, analog to digital conversion circuit, data receiver, data transmitting equipment, electro-optic conversion equipment, downlink optical fiber, primary power source, secondary power supply, uplink optical fibers, photoelectric conversion device, CPLD chip, Freescale IMX6 process chip, LCDs and Bluetooth communication equipment; First shell, for holding high voltage bus, air core coil, ironcore choke, signal conditioning circuit, analog to digital conversion circuit, data receiver, data transmitting equipment, electro-optic conversion equipment and primary power source; Second housing, for holding secondary power supply, photoelectric conversion device, CPLD chip, Freescale IMX6 process chip, display device and Bluetooth communication equipment; High voltage bus, through air core coil and ironcore choke; Air core coil, as the sensing head of protection channel; Ironcore choke, as the sensing head of Measurement channel; Signal conditioning circuit, the signal that receiving core coil exports, comprise filtering process electronic circuit, phase shift process electronic circuit and amplify process electronic circuit, carrying out filtering, phase shift and amplification process successively for the signal exported ironcore choke, and the signal after output processing; Analog to digital conversion circuit is connected with signal conditioning circuit, and the signal for being exported by signal conditioning circuit carries out the analog to digital conversion of 8; Data receiver, is connected with analog to digital conversion circuit by SPI interface, combines and CRC check the data received; Data transmitting equipment, by SPI interface, the data after verification are sent to electro-optic conversion equipment, the data after described verification are parallel mode; Data after verification are transmitted by downlink optical fiber by electro-optic conversion equipment; Photoelectric conversion device, receives the data after described verification by uplink optical fibers; CPLD chip, realizes the data simultaneously received after the verification of multidiameter delay, and carries out parallel-serial conversion, with the data after the verification obtaining multi-path serial; Freescale IMX6 process chip, realizes being connected with the bus interface of CPLD chip and mounting Bluetooth communication equipment; Be connected with infrared thermoviewer the temperature and the skin temperature abnormal signal that receive the first shell by Bluetooth communication equipment, resistance scaled value when to be connected with excitation detector by Bluetooth communication equipment to receive resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree, and based on resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree time resistance scaled value determine the defect kind of the first shell; Bluetooth communication equipment, for the defect kind of the temperature of the first shell, skin temperature abnormal signal and the first shell being wirelessly transmitted to the measurement server place of far-end, also for the data wireless after the verification of multi-path serial being sent to the measurement server place of far-end; Primary power source, for signal conditioning circuit, analog to digital conversion circuit, data receiver, data transmitting equipment and electro-optic conversion equipment provide electric power supply; Secondary power supply, for photoelectric conversion device, CPLD chip, Freescale IMX6 process chip, display device and Bluetooth communication equipment provide electric power supply; LCDs, is connected with Freescale IMX6 process chip, for showing the defect kind of the temperature of the first shell, skin temperature abnormal signal and the first shell in real time, also for the data after the verification of real-time display multiway serial; Wherein, described Bluetooth communication equipment comprises the first search subset, the second search subset and coupling connexon equipment; Wherein, the first search subset, according to the highest micro bluetooth network of MAC Address concentration determination Bluetooth MAC address concentration in Bluetooth Scatternet as target piconet, a Bluetooth Scatternet is made up of multiple micro bluetooth network; Second search subset, searches for subset be connected with described first, in described target piconet, finds, quantity preceding by signal intensity rank and is not more than one or more Bluetooth communication equipments of 7 as one or more target Bluetooth devices; Coupling connexon equipment, search for subset be connected with described second, startup is connected with the Bluetooth communication of described one or more target Bluetooth devices; The data being sent to the measurement server place of far-end are proportional to the corresponding data after analog to digital conversion circuit analog to digital conversion.
More specifically, in described electronic type voltage transformer: when there being the quantity of Bluetooth communication equipment of signal for being more than or equal to 7 in described target piconet, the quantity of described one or more target Bluetooth devices is 7.
More specifically, in described electronic type voltage transformer: when there being the quantity of Bluetooth communication equipment of signal for being less than 7 in described target piconet, the quantity of described one or more target Bluetooth devices is the quantity of the Bluetooth communication equipment having signal in described target piconet.
More specifically, in described electronic type voltage transformer: infrared thermoviewer and excitation detector are all embedded with bluetooth communication interface.
More specifically, in described electronic type voltage transformer: Freescale IMX6 process chip and CPLD integrated chip are on one piece of surface-mounted integrated circuit.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of electronic type voltage transformer of the present invention.
Fig. 2 is the block diagram of the Bluetooth communication equipment of electronic type voltage transformer of the present invention.
Reference numeral: 1 electronic type voltage transformer main body; 2 excitation detectors; 3 Freescale IMX6 process chip 4 first search for subset; 5 second search subsets; 6 coupling connexon equipment
Embodiment
Below with reference to accompanying drawings the embodiment of electronic type voltage transformer of the present invention is described in detail.
Along with the continuous application of a lot of new material, also there is a lot of new kind in mutual inductor, electromagnetic transformer obtains and develops more fully, and wherein core type current transformer has adapted to the growth requirement of power construction with dry type, oil immersed type and gas-insulating type various structures.But along with the continuous growth of power transmission capabilities; line voltage grade improve constantly and protect the constantly perfect of requirement; general core type current transformer structure exposes weakness incompatible with it gradually; its intrinsic volume is large, magnetic saturation, ferroresonance, dynamic range are little; the weakness such as service band is narrow, are difficult to the development need being completely difficult to satisfied Automation of Electric Systems of new generation, electric power digital network etc.Therefore, voltage, the current transformer of electronic type have been there is.
Electronic mutual inductor, AC sampling is carried out by the voltage to input, current signal, again sampled value is inputted secondary instrument by the transmission system such as cable, optical fiber and digital quantity to be connected, digital quantity input secondary instrument carries out computing to the sampled value of voltage, electric current, can obtain the parameters such as voltage effective value, current effective value, fundamental voltage, fundamental current, harmonic voltage, harmonic current, active power, fundamental power, harmonic power.
But electronic type voltage transformer of the prior art exists unreasonable structure, cost performance is not high, cannot be commonly used, and, also cannot realize the self-inspection of temperature to primary equipment shell and defect type.
For this reason, the present invention has built a kind of electronic type voltage transformer, optimize electronic type voltage transformer of the prior art, improve the cost performance of electronic type voltage transformer, more crucially, checkout equipment relevant for temperature and defect type to primary equipment shell is integrated in electronic type voltage transformer, and transforms radio transmission apparatus further to improve Wireless Data Transmission efficiency, thus improve fault detect speed.
Fig. 1 is the block diagram of electronic type voltage transformer of the present invention, described voltage transformer (VT) comprises electronic type voltage transformer main body, excitation detector and Freescale IMX6 process chip, described excitation detector is used for carrying out excitation detection to the shell of described electronic type voltage transformer main body, and described Freescale IMX6 process chip receives described excitation testing result and determines the defect kind of the shell of described electronic type voltage transformer main body based on described excitation testing result.
Then, the structure of electronic type voltage transformer of the present invention is specifically described.
Described voltage transformer (VT) comprises: infrared thermoviewer, is arranged on the opposite of the first shell, for detecting the temperature of the first shell in real time, and when the temperature detected exceeds default case temperature range, sends skin temperature abnormal signal.
Described voltage transformer (VT) comprises: excitation detector, excitation is carried out to obtain the excitation data fed back to the first shell, resistance scaled value when obtaining resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree according to excitation data, resistance scaled value during based on resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree determines the defect kind of the first shell.
Described voltage transformer (VT) comprises: electronic type voltage transformer main body, comprises the first shell, second housing, high voltage bus, air core coil, ironcore choke, signal conditioning circuit, analog to digital conversion circuit, data receiver, data transmitting equipment, electro-optic conversion equipment, downlink optical fiber, primary power source, secondary power supply, uplink optical fibers, photoelectric conversion device, CPLD chip, Freescale IMX6 process chip, LCDs and Bluetooth communication equipment; First shell, for holding high voltage bus, air core coil, ironcore choke, signal conditioning circuit, analog to digital conversion circuit, data receiver, data transmitting equipment, electro-optic conversion equipment and primary power source; Second housing, for holding secondary power supply, photoelectric conversion device, CPLD chip, Freescale IMX6 process chip, display device and Bluetooth communication equipment; High voltage bus, through air core coil and ironcore choke.
Described voltage transformer (VT) comprises: air core coil, as the sensing head of protection channel; Ironcore choke, as the sensing head of Measurement channel.
Described voltage transformer (VT) comprises: signal conditioning circuit, the signal that receiving core coil exports, comprise filtering process electronic circuit, phase shift process electronic circuit and amplify process electronic circuit, signal for exporting ironcore choke carries out filtering, phase shift and amplification process successively, and the signal after output processing; Analog to digital conversion circuit is connected with signal conditioning circuit, and the signal for being exported by signal conditioning circuit carries out the analog to digital conversion of 8.
Described voltage transformer (VT) comprises: data receiver, is connected with analog to digital conversion circuit by SPI interface, combines and CRC check the data received; Data transmitting equipment, by SPI interface, the data after verification are sent to electro-optic conversion equipment, the data after described verification are parallel mode; Data after verification are transmitted by downlink optical fiber by electro-optic conversion equipment; Photoelectric conversion device, receives the data after described verification by uplink optical fibers.
Described voltage transformer (VT) comprises: CPLD chip, realizes the data simultaneously received after the verification of multidiameter delay, and carries out parallel-serial conversion, with the data after the verification obtaining multi-path serial.
Described voltage transformer (VT) comprises: Freescale IMX6 process chip, realizes being connected with the bus interface of CPLD chip and mounting Bluetooth communication equipment; Be connected with infrared thermoviewer the temperature and the skin temperature abnormal signal that receive the first shell by Bluetooth communication equipment, resistance scaled value when to be connected with excitation detector by Bluetooth communication equipment to receive resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree, and based on resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree time resistance scaled value determine the defect kind of the first shell.
Described voltage transformer (VT) comprises: Bluetooth communication equipment, for the defect kind of the temperature of the first shell, skin temperature abnormal signal and the first shell being wirelessly transmitted to the measurement server place of far-end, also for the data wireless after the verification of multi-path serial being sent to the measurement server place of far-end; Primary power source, for signal conditioning circuit, analog to digital conversion circuit, data receiver, data transmitting equipment and electro-optic conversion equipment provide electric power supply; Secondary power supply, for photoelectric conversion device, CPLD chip, Freescale IMX6 process chip, display device and Bluetooth communication equipment provide electric power supply; LCDs, is connected with Freescale IMX6 process chip, for showing the defect kind of the temperature of the first shell, skin temperature abnormal signal and the first shell in real time, also for the data after the verification of real-time display multiway serial.
With reference to Fig. 2, wherein, described Bluetooth communication equipment comprises the first search subset, the second search subset and coupling connexon equipment; Wherein, the first search subset, according to the highest micro bluetooth network of MAC Address concentration determination Bluetooth MAC address concentration in Bluetooth Scatternet as target piconet, a Bluetooth Scatternet is made up of multiple micro bluetooth network; Second search subset, searches for subset be connected with described first, in described target piconet, finds, quantity preceding by signal intensity rank and is not more than one or more Bluetooth communication equipments of 7 as one or more target Bluetooth devices; Coupling connexon equipment, search for subset be connected with described second, startup is connected with the Bluetooth communication of described one or more target Bluetooth devices; The data being sent to the measurement server place of far-end are proportional to the corresponding data after analog to digital conversion circuit analog to digital conversion.
Alternatively, in described electronic type voltage transformer: when there being the quantity of Bluetooth communication equipment of signal for being more than or equal to 7 in described target piconet, the quantity of described one or more target Bluetooth devices is 7; When there being the quantity of Bluetooth communication equipment of signal for being less than 7 in described target piconet, the quantity of described one or more target Bluetooth devices is the quantity of the Bluetooth communication equipment having signal in described target piconet; Infrared thermoviewer and excitation detector are all embedded with bluetooth communication interface; And Freescale IMX6 process chip and CPLD chip can be integrated on one piece of surface-mounted integrated circuit.
In addition, wave filter, as the term suggests, be the device that ripple is filtered." ripple " is a physical concept widely, and at electronic technology field, " ripple " is narrowly confined to refer in particular to the process of the value fluctuations in time describing various physical quantity.This process, by the effect of various kinds of sensors, is converted into the function of time of voltage or electric current, is referred to as the time waveform of various physical quantity, or is referred to as signal.Because the independent variable time is continuous value, be referred to as continuous time signal, be referred to as simulating signal habitually again.
Along with generation and the develop rapidly of digital electronic computer technology, for the ease of computing machine, signal is processed, create complete Theories and methods continuous time signal being transformed into discrete-time signal under sampling theorem instructs.That is, can only express original signal by the sample value of original analog signal on series of discrete time coordinate point and not lose any information, since what these concepts of ripple, waveform, signal were expressed is the change of various physical quantity in objective world, is exactly the carrier of the various information that modern society depends on for existence naturally.Information needs to propagate, and what lean on is exactly the transmission of waveform signal.Signal it generation, conversion, transmission each link may distort due to the existence of environment and interference, or even in quite a number of cases, this distortion is also very serious, causes signal and entrained information thereof to be embedded in the middle of noise dearly.In order to these noises of filtering, recover signal originally, need to use various wave filter to carry out filtering process.
Adopt electronic type voltage transformer of the present invention, cost dearly for electronic type voltage transformer in prior art, lack relevant self-checking equipment and the low technical matters of radio transmission apparatus work efficiency, by the structure of modification to electronic type voltage transformer, simplify the inner structure of original electronic type voltage transformer, simultaneously, integrated series of parameters checkout equipment detects primary equipment, and improve the Communication processing mechanism of radio transmission apparatus, thus improve the automatization level of electronic type voltage transformer.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (6)
1. an electronic type voltage transformer, described voltage transformer (VT) comprises electronic type voltage transformer main body, excitation detector and Freescale IMX6 process chip, described excitation detector is used for carrying out excitation detection to the shell of described electronic type voltage transformer main body, and described Freescale IMX6 process chip receives described excitation testing result and determines the defect kind of the shell of described electronic type voltage transformer main body based on described excitation testing result.
2. electronic type voltage transformer as claimed in claim 1, it is characterized in that, described voltage transformer (VT) comprises:
Infrared thermoviewer, is arranged on the opposite of the first shell, for detecting the temperature of the first shell in real time, and when the temperature detected exceeds default case temperature range, sends skin temperature abnormal signal;
Excitation detector, excitation is carried out to obtain the excitation data fed back to the first shell, resistance scaled value when obtaining resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree according to excitation data, resistance scaled value during based on resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree determines the defect kind of the first shell;
Electronic type voltage transformer main body, comprises the first shell, second housing, high voltage bus, air core coil, ironcore choke, signal conditioning circuit, analog to digital conversion circuit, data receiver, data transmitting equipment, electro-optic conversion equipment, downlink optical fiber, primary power source, secondary power supply, uplink optical fibers, photoelectric conversion device, CPLD chip, Freescale IMX6 process chip, LCDs and Bluetooth communication equipment;
First shell, for holding high voltage bus, air core coil, ironcore choke, signal conditioning circuit, analog to digital conversion circuit, data receiver, data transmitting equipment, electro-optic conversion equipment and primary power source;
Second housing, for holding secondary power supply, photoelectric conversion device, CPLD chip, Freescale IMX6 process chip, display device and Bluetooth communication equipment;
High voltage bus, through air core coil and ironcore choke;
Air core coil, as the sensing head of protection channel;
Ironcore choke, as the sensing head of Measurement channel;
Signal conditioning circuit, the signal that receiving core coil exports, comprise filtering process electronic circuit, phase shift process electronic circuit and amplify process electronic circuit, carrying out filtering, phase shift and amplification process successively for the signal exported ironcore choke, and the signal after output processing;
Analog to digital conversion circuit is connected with signal conditioning circuit, and the signal for being exported by signal conditioning circuit carries out the analog to digital conversion of 8;
Data receiver, is connected with analog to digital conversion circuit by SPI interface, combines and CRC check the data received;
Data transmitting equipment, by SPI interface, the data after verification are sent to electro-optic conversion equipment, the data after described verification are parallel mode;
Data after verification are transmitted by downlink optical fiber by electro-optic conversion equipment;
Photoelectric conversion device, receives the data after described verification by uplink optical fibers;
CPLD chip, realizes the data simultaneously received after the verification of multidiameter delay, and carries out parallel-serial conversion, with the data after the verification obtaining multi-path serial;
Freescale IMX6 process chip, realizes being connected with the bus interface of CPLD chip and mounting Bluetooth communication equipment; Be connected with infrared thermoviewer the temperature and the skin temperature abnormal signal that receive the first shell by Bluetooth communication equipment, resistance scaled value when to be connected with excitation detector by Bluetooth communication equipment to receive resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree, and based on resistance scaled value 25 degree time of knee voltage, keen current, the first shell and the first shell at 75 degree time resistance scaled value determine the defect kind of the first shell;
Bluetooth communication equipment, for the defect kind of the temperature of the first shell, skin temperature abnormal signal and the first shell being wirelessly transmitted to the measurement server place of far-end, also for the data wireless after the verification of multi-path serial being sent to the measurement server place of far-end;
Primary power source, for signal conditioning circuit, analog to digital conversion circuit, data receiver, data transmitting equipment and electro-optic conversion equipment provide electric power supply;
Secondary power supply, for photoelectric conversion device, CPLD chip, Freescale IMX6 process chip, display device and Bluetooth communication equipment provide electric power supply;
LCDs, is connected with Freescale IMX6 process chip, for showing the defect kind of the temperature of the first shell, skin temperature abnormal signal and the first shell in real time, also for the data after the verification of real-time display multiway serial;
Wherein, described Bluetooth communication equipment comprises the first search subset, the second search subset and coupling connexon equipment; Wherein, the first search subset, according to the highest micro bluetooth network of MAC Address concentration determination Bluetooth MAC address concentration in Bluetooth Scatternet as target piconet, a Bluetooth Scatternet is made up of multiple micro bluetooth network; Second search subset, searches for subset be connected with described first, in described target piconet, finds, quantity preceding by signal intensity rank and is not more than one or more Bluetooth communication equipments of 7 as one or more target Bluetooth devices; Coupling connexon equipment, search for subset be connected with described second, startup is connected with the Bluetooth communication of described one or more target Bluetooth devices;
Wherein, the data being sent to the measurement server place of far-end are proportional to the corresponding data after analog to digital conversion circuit analog to digital conversion.
3. electronic type voltage transformer as claimed in claim 2, is characterized in that:
When there being the quantity of Bluetooth communication equipment of signal for being more than or equal to 7 in described target piconet, the quantity of described one or more target Bluetooth devices is 7.
4. electronic type voltage transformer as claimed in claim 2, is characterized in that:
When there being the quantity of Bluetooth communication equipment of signal for being less than 7 in described target piconet, the quantity of described one or more target Bluetooth devices is the quantity of the Bluetooth communication equipment having signal in described target piconet.
5. electronic type voltage transformer as claimed in claim 2, is characterized in that:
Infrared thermoviewer and excitation detector are all embedded with bluetooth communication interface.
6. electronic type voltage transformer as claimed in claim 2, is characterized in that:
Freescale IMX6 process chip and CPLD integrated chip are on one piece of surface-mounted integrated circuit.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610115162.9A CN105699730A (en) | 2015-11-16 | 2015-11-16 | Electronic voltage transformer |
| CN201510785106.1A CN105259397B (en) | 2015-11-16 | 2015-11-16 | Electronic type voltage transformer |
| CN201610118535.8A CN105699731A (en) | 2015-11-16 | 2015-11-16 | Electronic voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510785106.1A CN105259397B (en) | 2015-11-16 | 2015-11-16 | Electronic type voltage transformer |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610118535.8A Division CN105699731A (en) | 2015-11-16 | 2015-11-16 | Electronic voltage transformer |
| CN201610115162.9A Division CN105699730A (en) | 2015-11-16 | 2015-11-16 | Electronic voltage transformer |
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| Publication Number | Publication Date |
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| CN105259397A true CN105259397A (en) | 2016-01-20 |
| CN105259397B CN105259397B (en) | 2016-06-29 |
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| CN201610118535.8A Pending CN105699731A (en) | 2015-11-16 | 2015-11-16 | Electronic voltage transformer |
| CN201510785106.1A Expired - Fee Related CN105259397B (en) | 2015-11-16 | 2015-11-16 | Electronic type voltage transformer |
| CN201610115162.9A Withdrawn CN105699730A (en) | 2015-11-16 | 2015-11-16 | Electronic voltage transformer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388347A (en) * | 2015-11-16 | 2016-03-09 | 王爱玲 | Method for using electronic voltage transformer |
| CN106226576A (en) * | 2016-05-03 | 2016-12-14 | 北京铁道工程机电技术研究所有限公司 | A kind of field bus type AC voltage transformer |
| CN106706989A (en) * | 2016-11-30 | 2017-05-24 | 胡妍 | Intelligent intermediate-and-high-voltage mutual inductor |
| CN108508395A (en) * | 2017-02-26 | 2018-09-07 | 武汉市欧睿科技有限公司 | A kind of electronic transformer test system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699731A (en) * | 2015-11-16 | 2016-06-22 | 王爱玲 | Electronic voltage transformer |
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- 2015-11-16 CN CN201510785106.1A patent/CN105259397B/en not_active Expired - Fee Related
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| CN106706989A (en) * | 2016-11-30 | 2017-05-24 | 胡妍 | Intelligent intermediate-and-high-voltage mutual inductor |
| CN108508395A (en) * | 2017-02-26 | 2018-09-07 | 武汉市欧睿科技有限公司 | A kind of electronic transformer test system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105699731A (en) | 2016-06-22 |
| CN105259397B (en) | 2016-06-29 |
| CN105699730A (en) | 2016-06-22 |
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