CN105466485A - Automatic monitoring device of current transformer - Google Patents
Automatic monitoring device of current transformer Download PDFInfo
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- CN105466485A CN105466485A CN201510788796.6A CN201510788796A CN105466485A CN 105466485 A CN105466485 A CN 105466485A CN 201510788796 A CN201510788796 A CN 201510788796A CN 105466485 A CN105466485 A CN 105466485A
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- air conditioning
- current transformer
- charge air
- digitizing
- real time
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention relates to an automatic monitoring device of a current transformer. The current transformer comprises an inflatable current transformer body, an excitation monitor and an ARM11 processing chip. The excitation monitor is used for exciting the inflatable current transformer body to get fed-back excitation data. The ARM11 processing chip is connected with the excitation monitor, and is used for determining the defect type of the transformer based on the excitation monitor. With the device, nondestructive self-monitoring of the current transformer can be realized.
Description
Technical field
The present invention relates to power domain, particularly relate to a kind of automated watch-keeping facility of current transformer.
Background technology
Current transformer, it utilizes the proportional feature of transformer primary, secondary current to make.Its principle of work, equivalent circuit are also identical with general transformer, and just its former limit windings in series is in circuit-under-test, and the number of turn is little; Vice-side winding connects the low-impedance load such as reometer, relay current coil, near short circuit.Primary current (i.e. tested electric current) and secondary current depend on the load of test line, and have nothing to do with the secondary load of current transformer.Because secondary is close to short circuit, so former and deputy polygonal voltage U1 and all very little, exciting current I0 is also very little.When current transformer runs, secondary does not allow open circuit.Because once open circuit, primary current all becomes exciting current, makes magnetic flux and secondary voltage substantially exceed normal value and jeopardize the person and device security.Therefore, mustn't fuse be connect in current transformer secondary loop, also not allow operationally just to pull down the equipment such as reometer, relay without bypass.The mode of connection of current transformer by its connect load service requirement determine.The most frequently used mode of connection is single-phase, three-phase star and incomplete star.
Gas-filled type current transformer is a kind of main Types in current transformer.In prior art, gas-filled type current transformer is in operation and may there is certain link pressure anomaly, charge air conditioning purity is out-of-limit, content of sulfur dioxide is out-of-limit, environment temperature is too high or too low waits dangerous situation, to these dangerous situations be all adopt artificial right place Portable device check, waste time and energy and inefficiency, simultaneously, also various types of defect may be there is in the housing main body of existing gas-filled type current transformer under the condition being in external environment for a long time, defect type monitoring is completed iff dependence manual inspection, real-time is too poor, and monitoring accuracy is not high yet.
For this reason, the present invention proposes a kind of automated watch-keeping facility of current transformer, can build various running parameter monitoring equipment at current transformer itself carries out from monitoring, and Real-Time Monitoring can be carried out to the shell defect type of current transformer incessantly, avoid spreading further of dangerous situation.
Summary of the invention
In order to solve the technical matters that prior art exists, the invention provides a kind of automated watch-keeping facility of current transformer, be integrated with the Real-Time Monitoring of excitation monitor realization to the shell defect type of current transformer, be integrated with the self-operating state of various running parameter monitoring equipments to current transformer comprising tensimeter, charge air conditioning infrared sensor, sulphuric dioxide electrochemical sensor and environment temperature sensor to monitor, and reported by improved Bluetooth communication equipment, thus can Timeliness coverage abnormal conditions, and report to the police fast.
According to an aspect of the present invention, provide a kind of automated watch-keeping facility of current transformer, described current transformer comprises gas-filled type current transformer main body, excitation monitor and ARM11 process chip, described excitation monitor is used for carrying out excitation to obtain the excitation data fed back to gas-filled type current transformer main body, described ARM11 process chip is connected with described excitation monitor, for the defect kind based on described excitation monitor determination mutual inductor.
More specifically, in the automated watch-keeping facility of described current transformer, comprise: excitation monitor, excitation is carried out to obtain the excitation data fed back to gas-filled type current transformer main body, resistance scaled value when obtaining resistance scaled value 25 degree time of knee voltage, keen current, described mutual inductor and described mutual inductor at 75 degree according to excitation data, gas-filled type current transformer main body, comprise transformer casing, mutual inductor monitoring mouth, winding, Secondary Winding, iron core, terminal box and an insulation air chamber, one time winding, Secondary Winding, iron core, terminal box and insulation air chamber are all in described shell, described terminal box is for being incorporated into described iron core by a described winding and described Secondary Winding, described insulation air chamber holds described iron core, described mutual inductor monitoring mouth is arranged on the side of transformer casing, as the monitoring port of gas in mutual inductor, interface conversion threeway, monitors mouth with described mutual inductor and is connected, first hand valve, is connected with described interface conversion threeway, two-way, is connected with described first hand valve, is also connected with the first switch electromagnetic valve, first switch electromagnetic valve, is connected with pressure maintaining valve, pressure maintaining valve, is connected with charge air conditioning infrared sensor, it is also provided with tensimeter, charge air conditioning infrared sensor, measures air chamber with sulphuric dioxide and is connected, and be also embedded with sulphuric dioxide electrochemical sensor in the gas chamber shell of sulphuric dioxide measurement air chamber, charge air conditioning infrared sensor is for measuring the charge air conditioning purity of gas indoor gas, sulphuric dioxide measures air chamber, comprises air chamber base, gas chamber shell and O-ring seal, sulphuric dioxide electrochemical sensor, for measuring the content of sulfur dioxide of gas indoor gas, 4th hand valve, measures air chamber with sulphuric dioxide and is connected, environment temperature sensor, for the real time temperature of Real-Time Monitoring mutual inductor surrounding environment, traffic filter, be connected respectively with tensimeter, charge air conditioning infrared sensor, sulphuric dioxide electrochemical sensor and environment temperature sensor, carry out filtering process respectively for force value, charge air conditioning purity, content of sulfur dioxide and the real time temperature exported tensimeter, signal amplifier, is connected with traffic filter, for amplifying respectively filtered force value, charge air conditioning purity, content of sulfur dioxide and real time temperature, analog to digital converter, be connected with signal amplifier, for carrying out analog to digital conversion respectively to obtain numerical pressure value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature to force value, charge air conditioning purity, content of sulfur dioxide and the real time temperature after amplification, TF storage chip, for prestoring pressure threshold scope, charge air conditioning purity threshold range, content of sulfur dioxide threshold range and real time temperature threshold range, ARM11 process chip, is connected with excitation monitor, the defect kind of resistance scaled value determination mutual inductor during based on resistance scaled value 25 degree time of knee voltage, keen current, described mutual inductor and described mutual inductor at 75 degree, also be connected with analog to digital converter by IO interface, to receive numerical pressure value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature, also be connected with TF storage chip, to send Pressure Alarm when numerical pressure value exceeds pressure threshold scope, charge air conditioning purity alerting signal is sent when digitizing charge air conditioning purity exceeds charge air conditioning purity threshold range, content of sulfur dioxide alerting signal is sent when digitizing content of sulfur dioxide exceeds content of sulfur dioxide threshold range, environment temperature alerting signal is sent when digitizing real time temperature exceeds real time temperature threshold range, LCDs, be connected with ARM11 process chip, for showing the defect kind of mutual inductor in real time, real-time displaying digitized force value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature, also for showing the word information warning corresponding respectively with Pressure Alarm, charge air conditioning purity alerting signal, content of sulfur dioxide alerting signal and environment temperature alerting signal in real time, audible-visual annunciator, is connected with ARM11 process chip, for sending the acousto-optic warning signal corresponding with Pressure Alarm, charge air conditioning purity alerting signal, content of sulfur dioxide alerting signal or environment temperature alerting signal, Bluetooth communication equipment, be connected with the electrical management server of ARM11 process chip and far-end, for numerical pressure value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature are sent to electrical management server place in real time by bluetooth communications link, 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, equipment connection subset, searches for subset be connected with described second, starts and is connected with the Bluetooth communication of described one or more target Bluetooth devices.
More specifically, in the automated watch-keeping facility of described current 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 the automated watch-keeping facility of described current 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 the automated watch-keeping facility of described current transformer: excitation monitor, TF storage chip and ARM11 process chip are integrated on one piece of surface-mounted integrated circuit.
More specifically, in the automated watch-keeping facility of described current transformer: IO interface is 8 bit input and output interfaces, analog to digital converter is 8 analog to digital converters.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of the automated watch-keeping facility of current transformer of the present invention.
Reference numeral: 1 gas-filled type current transformer main body; 2 excitation monitors; 3ARM11 process chip
Embodiment
Below with reference to accompanying drawings the embodiment of the automated watch-keeping facility of current transformer of the present invention is described in detail.
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 ".
Current gas-filled type current transformer all relies on artificial mode to self working state monitoring to carry out, namely manager arrange maintainer regularly to fix a point carry various monitoring instrument and go to monitor, but this monitoring pattern cannot uninterruptedly be monitored, inefficiency, meanwhile, the monitoring mechanism to gas-filled type current transformer shell defect kind is also lacked in prior art.
For this reason, the present invention has built a kind of automated watch-keeping facility of current transformer, transform the structure of existing gas-filled type current transformer, be integrated with the subset of various running parameter monitoring, more crucially simultaneously, add excitation monitor and excitation monitoring is carried out to gas-filled type current transformer main body, and carry out defect type judgement voluntarily according to excitation monitoring result, thus improve reliability and the robotization level of mutual inductor.
Fig. 1 is the block diagram of the automated watch-keeping facility of current transformer of the present invention, described current transformer comprises gas-filled type current transformer main body, excitation monitor and ARM11 process chip, described excitation monitor is used for carrying out excitation to obtain the excitation data fed back to gas-filled type current transformer main body, described ARM11 process chip is connected with described excitation monitor, for the defect kind based on described excitation monitor determination mutual inductor.
Then, the structure of the automated watch-keeping facility of current transformer of the present invention is specifically described.
Described current transformer comprises: excitation monitor, excitation is carried out to obtain the excitation data fed back to gas-filled type current transformer main body, resistance scaled value when obtaining resistance scaled value 25 degree time of knee voltage, keen current, described mutual inductor and described mutual inductor at 75 degree according to excitation data.
Described current transformer comprises: gas-filled type current transformer main body, comprise transformer casing, mutual inductor monitoring mouth, winding, Secondary Winding, iron core, terminal box and an insulation air chamber, one time winding, Secondary Winding, iron core, terminal box and insulation air chamber are all in described shell, described terminal box is for being incorporated into described iron core by a described winding and described Secondary Winding, described insulation air chamber holds described iron core, described mutual inductor monitoring mouth is arranged on the side of transformer casing, as the monitoring port of gas in mutual inductor; Interface conversion threeway, monitors mouth with described mutual inductor and is connected; First hand valve, is connected with described interface conversion threeway; Two-way, is connected with described first hand valve, is also connected with the first switch electromagnetic valve; First switch electromagnetic valve, is connected with pressure maintaining valve; Pressure maintaining valve, is connected with charge air conditioning infrared sensor, it is also provided with tensimeter.
Described current transformer comprises: charge air conditioning infrared sensor, measure air chamber with sulphuric dioxide to be connected, also be embedded with sulphuric dioxide electrochemical sensor in the gas chamber shell of sulphuric dioxide measurement air chamber, charge air conditioning infrared sensor is for measuring the charge air conditioning purity of gas indoor gas; Sulphuric dioxide measures air chamber, comprises air chamber base, gas chamber shell and O-ring seal; Sulphuric dioxide electrochemical sensor, for measuring the content of sulfur dioxide of gas indoor gas; 4th hand valve, measures air chamber with sulphuric dioxide and is connected; Environment temperature sensor, for the real time temperature of Real-Time Monitoring mutual inductor surrounding environment.
Described current transformer comprises: traffic filter, be connected respectively with tensimeter, charge air conditioning infrared sensor, sulphuric dioxide electrochemical sensor and environment temperature sensor, carry out filtering process respectively for force value, charge air conditioning purity, content of sulfur dioxide and the real time temperature exported tensimeter; Signal amplifier, is connected with traffic filter, for amplifying respectively filtered force value, charge air conditioning purity, content of sulfur dioxide and real time temperature.
Described current transformer comprises: analog to digital converter, be connected with signal amplifier, for carrying out analog to digital conversion respectively to obtain numerical pressure value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature to force value, charge air conditioning purity, content of sulfur dioxide and the real time temperature after amplification; TF storage chip, for prestoring pressure threshold scope, charge air conditioning purity threshold range, content of sulfur dioxide threshold range and real time temperature threshold range.
Described current transformer comprises: ARM11 process chip, be connected with excitation monitor, the defect kind of resistance scaled value determination mutual inductor during based on resistance scaled value 25 degree time of knee voltage, keen current, described mutual inductor and described mutual inductor at 75 degree, also be connected with analog to digital converter by IO interface, to receive numerical pressure value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature, also be connected with TF storage chip, to send Pressure Alarm when numerical pressure value exceeds pressure threshold scope, charge air conditioning purity alerting signal is sent when digitizing charge air conditioning purity exceeds charge air conditioning purity threshold range, content of sulfur dioxide alerting signal is sent when digitizing content of sulfur dioxide exceeds content of sulfur dioxide threshold range, environment temperature alerting signal is sent when digitizing real time temperature exceeds real time temperature threshold range.
Described current transformer comprises: LCDs, be connected with ARM11 process chip, for showing the defect kind of mutual inductor in real time, real-time displaying digitized force value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature, also for showing the word information warning corresponding respectively with Pressure Alarm, charge air conditioning purity alerting signal, content of sulfur dioxide alerting signal and environment temperature alerting signal in real time; Audible-visual annunciator, is connected with ARM11 process chip, for sending the acousto-optic warning signal corresponding with Pressure Alarm, charge air conditioning purity alerting signal, content of sulfur dioxide alerting signal or environment temperature alerting signal.
Described current transformer comprises: Bluetooth communication equipment, be connected with the electrical management server of ARM11 process chip and far-end, for numerical pressure value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature are sent to electrical management server place in real time by bluetooth communications link; 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; Equipment connection subset, searches for subset be connected with described second, starts and is connected with the Bluetooth communication of described one or more target Bluetooth devices.
Alternatively, in described current 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; Excitation monitor, TF storage chip and ARM11 process chip can be integrated on one piece of surface-mounted integrated circuit; IO interface is chosen as 8 bit input and output interfaces, and analog to digital converter is chosen as 8 analog to digital converters.
In addition, analog to digital converter and A/D converter, or be called for short ADC, typically referring to one by analog-signal transitions is the electronic component of digital signal.Common analog to digital converter an input voltage signal is converted to a digital signal exported.Because digital signal itself does not have practical significance, only represent a relative size.Therefore any one analog to digital converter all needs one with reference to the standard of analog quantity as conversion, more common normative reference is maximum convertible signal magnitude.The digital quantity exported then represents the size of input signal relative to reference signal.
The resolution of analog-digital converter refers to, for the simulating signal in allowed band, it can export the number of discrete digital signal value.These signal values store with binary number usually, and therefore resolution is through commonly using bit as unit, and the number of these discrete values is power exponents of 2.Such as, simulating signal can be encoded into 256 different discrete values (because 2^8=256) by analog-digital converter with 8 bit resolutions, from 0 to 255 (i.e. signless integers) or from-128 to 127 (i.e. signed integers), any as use, then depend on concrete application.
Adopt the automated watch-keeping facility of current transformer of the present invention, running parameter and the agent structure technical matters from monitoring mechanism is lacked for gas-filled type current transformer in prior art, by transforming the structure of existing gas-filled type current transformer, multiple running parameter monitoring equipment is integrated on existing gas-filled type current transformer, and increase shell defect inspection equipment, thus replace loaded down with trivial details and personal monitoring's pattern of inefficiency, improve the efficiency of monitoring of equipment.
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. the automated watch-keeping facility of a current transformer, described current transformer comprises gas-filled type current transformer main body, excitation monitor and ARM11 process chip, described excitation monitor is used for carrying out excitation to obtain the excitation data fed back to gas-filled type current transformer main body, described ARM11 process chip is connected with described excitation monitor, for the defect kind based on described excitation monitor determination mutual inductor.
2. the automated watch-keeping facility of current transformer as claimed in claim 1, it is characterized in that, described current transformer comprises:
Excitation monitor, excitation is carried out to obtain the excitation data fed back to gas-filled type current transformer main body, resistance scaled value when obtaining resistance scaled value 25 degree time of knee voltage, keen current, described mutual inductor and described mutual inductor at 75 degree according to excitation data;
Gas-filled type current transformer main body, comprise transformer casing, mutual inductor monitoring mouth, winding, Secondary Winding, iron core, terminal box and an insulation air chamber, one time winding, Secondary Winding, iron core, terminal box and insulation air chamber are all in described shell, described terminal box is for being incorporated into described iron core by a described winding and described Secondary Winding, described insulation air chamber holds described iron core, described mutual inductor monitoring mouth is arranged on the side of transformer casing, as the monitoring port of gas in mutual inductor;
Interface conversion threeway, monitors mouth with described mutual inductor and is connected;
First hand valve, is connected with described interface conversion threeway;
Two-way, is connected with described first hand valve, is also connected with the first switch electromagnetic valve;
First switch electromagnetic valve, is connected with pressure maintaining valve;
Pressure maintaining valve, is connected with charge air conditioning infrared sensor, it is also provided with tensimeter;
Charge air conditioning infrared sensor, measures air chamber with sulphuric dioxide and is connected, and be also embedded with sulphuric dioxide electrochemical sensor in the gas chamber shell of sulphuric dioxide measurement air chamber, charge air conditioning infrared sensor is for measuring the charge air conditioning purity of gas indoor gas;
Sulphuric dioxide measures air chamber, comprises air chamber base, gas chamber shell and O-ring seal;
Sulphuric dioxide electrochemical sensor, for measuring the content of sulfur dioxide of gas indoor gas;
4th hand valve, measures air chamber with sulphuric dioxide and is connected;
Environment temperature sensor, for the real time temperature of Real-Time Monitoring mutual inductor surrounding environment;
Traffic filter, be connected respectively with tensimeter, charge air conditioning infrared sensor, sulphuric dioxide electrochemical sensor and environment temperature sensor, carry out filtering process respectively for force value, charge air conditioning purity, content of sulfur dioxide and the real time temperature exported tensimeter;
Signal amplifier, is connected with traffic filter, for amplifying respectively filtered force value, charge air conditioning purity, content of sulfur dioxide and real time temperature;
Analog to digital converter, be connected with signal amplifier, for carrying out analog to digital conversion respectively to obtain numerical pressure value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature to force value, charge air conditioning purity, content of sulfur dioxide and the real time temperature after amplification;
TF storage chip, for prestoring pressure threshold scope, charge air conditioning purity threshold range, content of sulfur dioxide threshold range and real time temperature threshold range;
ARM11 process chip, is connected with excitation monitor, the defect kind of resistance scaled value determination mutual inductor during based on resistance scaled value 25 degree time of knee voltage, keen current, described mutual inductor and described mutual inductor at 75 degree, also be connected with analog to digital converter by IO interface, to receive numerical pressure value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature, also be connected with TF storage chip, to send Pressure Alarm when numerical pressure value exceeds pressure threshold scope, charge air conditioning purity alerting signal is sent when digitizing charge air conditioning purity exceeds charge air conditioning purity threshold range, content of sulfur dioxide alerting signal is sent when digitizing content of sulfur dioxide exceeds content of sulfur dioxide threshold range, environment temperature alerting signal is sent when digitizing real time temperature exceeds real time temperature threshold range,
LCDs, be connected with ARM11 process chip, for showing the defect kind of mutual inductor in real time, real-time displaying digitized force value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature, also for showing the word information warning corresponding respectively with Pressure Alarm, charge air conditioning purity alerting signal, content of sulfur dioxide alerting signal and environment temperature alerting signal in real time;
Audible-visual annunciator, is connected with ARM11 process chip, for sending the acousto-optic warning signal corresponding with Pressure Alarm, charge air conditioning purity alerting signal, content of sulfur dioxide alerting signal or environment temperature alerting signal;
Bluetooth communication equipment, be connected with the electrical management server of ARM11 process chip and far-end, for numerical pressure value, digitizing charge air conditioning purity, digitizing content of sulfur dioxide and digitizing real time temperature are sent to electrical management server place in real time by bluetooth communications link;
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; Equipment connection subset, searches for subset be connected with described second, starts and is connected with the Bluetooth communication of described one or more target Bluetooth devices.
3. the automated watch-keeping facility of current 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. the automated watch-keeping facility of current 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. the automated watch-keeping facility of current transformer as claimed in claim 2, is characterized in that:
Excitation monitor, TF storage chip and ARM11 process chip are integrated on one piece of surface-mounted integrated circuit.
6. the automated watch-keeping facility of current transformer as claimed in claim 2, is characterized in that:
IO interface is 8 bit input and output interfaces, and analog to digital converter is 8 analog to digital converters.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510788796.6A CN105466485A (en) | 2015-11-16 | 2015-11-16 | Automatic monitoring device of current transformer |
| CN201610114620.7A CN105606154A (en) | 2015-11-16 | 2015-11-16 | Automatic monitoring device for current transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510788796.6A CN105466485A (en) | 2015-11-16 | 2015-11-16 | Automatic monitoring device of current transformer |
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| CN201610115128.1A Division CN105716657A (en) | 2015-11-16 | 2015-11-16 | Automatic monitoring device of current transformer |
| CN201610114620.7A Division CN105606154A (en) | 2015-11-16 | 2015-11-16 | Automatic monitoring device for current transformer |
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| CN201610114620.7A Pending CN105606154A (en) | 2015-11-16 | 2015-11-16 | Automatic monitoring device for current transformer |
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| CN1808645A (en) * | 2005-01-19 | 2006-07-26 | 江苏思源赫兹互感器有限公司 | Sulfur hexafluoride current transformer |
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| CN103123382A (en) * | 2013-01-31 | 2013-05-29 | 云南电力试验研究院（集团）有限公司电力研究院 | Photoelectric combined detection method aiming at mutual inductor of distribution network |
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2015
- 2015-11-16 CN CN201510788796.6A patent/CN105466485A/en active Pending
- 2015-11-16 CN CN201610114620.7A patent/CN105606154A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1808645A (en) * | 2005-01-19 | 2006-07-26 | 江苏思源赫兹互感器有限公司 | Sulfur hexafluoride current transformer |
| CN101498754A (en) * | 2008-02-02 | 2009-08-05 | 陕西电力科学研究院 | Method and device for judging SF6 electrical equipment malfunction by utilizing SF6 pressure fluctuation |
| CN201514455U (en) * | 2009-09-04 | 2010-06-23 | 武汉市豪迈电力自动化技术有限责任公司 | CT/PT comprehensive test instrument for electric power |
| EP2400812A1 (en) * | 2010-06-24 | 2011-12-28 | 9Solutions Oy | Bluetooth networking |
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| CN103123382A (en) * | 2013-01-31 | 2013-05-29 | 云南电力试验研究院（集团）有限公司电力研究院 | Photoelectric combined detection method aiming at mutual inductor of distribution network |
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| CN105606154A (en) | 2016-05-25 |
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