CN105445518A - Voltage transformer application method - Google Patents
Voltage transformer application method Download PDFInfo
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- CN105445518A CN105445518A CN201510788523.1A CN201510788523A CN105445518A CN 105445518 A CN105445518 A CN 105445518A CN 201510788523 A CN201510788523 A CN 201510788523A CN 105445518 A CN105445518 A CN 105445518A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims abstract description 106
- 229910018503 SF6 Inorganic materials 0.000 claims abstract description 83
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims abstract description 83
- 229960000909 sulfur hexafluoride Drugs 0.000 claims abstract description 83
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims description 24
- 230000006854 communication Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 21
- 230000002159 abnormal effect Effects 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 9
- 230000003068 static effect Effects 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 5
- 238000005259 measurement Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 3
- 230000007175 bidirectional communication Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000012360 testing method Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/24—Voltage transformers
- H01F38/26—Constructions
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Housings And Mounting Of Transformers (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to a voltage transformer. The voltage transformer comprises a sulfur hexafluoride inflatable voltage transformer main body, a sulfur dioxide electrochemical sensor and an AT89C51 single chip microcomputer. The sulfur dioxide electrochemical sensor is used for sampling and analyzing an inflation gas in the sulfur hexafluoride inflatable voltage transformer main body to determine a sulfur dioxide content. The AT89C51 single chip microcomputer is connected to the sulfur dioxide electrochemical sensor and is used for determining an alarm strategy based on the sulfur dioxide content. By using the method, parametric self-detection can be performed on a sulfur hexafluoride inflatable voltage transformer and an intelligent level of the voltage transformer is increased.
Description
Technical field
The present invention relates to voltage transformer (VT) field, particularly relate to a kind of using method of voltage transformer (VT).
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.
Sulfur hexafluoride inflatable-type voltage transformer (VT) is a kind of current voltage transformer (VT) generally applied, but, the structure of sulfur hexafluoride inflatable-type voltage transformer (VT) of the prior art is reasonable not, cause product redundance too high, qualification rate is not high, lacks self testing mechanism simultaneously, such as, lack the checkout equipment to own temperature and associated gas, need increase interface and corresponding checkout equipment in addition to operate, make testing process complicated.
For this reason, the present invention proposes a kind of voltage transformer (VT), while the structure, raising mutual inductor self performance of the existing sulfur hexafluoride inflatable-type voltage transformer (VT) of transformation, the body of sulfur hexafluoride inflatable-type voltage transformer (VT) increases multiple running parameter checkout equipment, thus improves the intelligent level of mutual inductor.
Summary of the invention
In order to solve the technical matters that prior art exists, the invention provides a kind of voltage transformer (VT), optimize the framework of sulfur hexafluoride inflatable-type voltage transformer (VT) in prior art, add the various running parameter checkout equipments comprising infrared thermoviewer, tensimeter, sulfur hexafluoride infrared sensor, sulphuric dioxide electrochemical sensor and environment temperature sensor, to improve the reliability of field apparatus.
According to an aspect of the present invention, provide a kind of voltage transformer (VT), described voltage transformer (VT) comprises sulfur hexafluoride inflatable-type voltage transformer (VT) main body, sulphuric dioxide electrochemical sensor and AT89C51 single-chip microcomputer, described sulphuric dioxide electrochemical sensor is used for carrying out sampling analysis to the charge air conditioning in sulfur hexafluoride inflatable-type voltage transformer (VT) main body, to determine content of sulfur dioxide wherein, described AT89C51 single-chip microcomputer is connected with described sulphuric dioxide electrochemical sensor, for determining strategy of reporting to the police based on content of sulfur dioxide.
More specifically, in described voltage transformer (VT), comprising: infrared thermoviewer, be arranged on the opposite of sulfur hexafluoride inflatable-type voltage transformer (VT) main body, for detecting the temperature of transformer casing in real time, sulfur hexafluoride inflatable-type voltage transformer (VT) main body, comprises base, secondary terminal box, secondary lead wires sleeve pipe, iron core, transformer casing, once to go between sleeve pipe, burst disk, compound insulating sleeve and silastic-layer, compound insulating sleeve is positioned at above base, is cylindrical structural, transformer casing is arranged on above compound insulating sleeve, for cylindrical structural and cross sectional radius is the twice of compound insulating sleeve cross sectional radius, burst disk is arranged on the top of transformer casing, silastic-layer is wrapped in the outside of compound insulating sleeve, secondary terminal box is positioned at the side of base, for accessing secondary lead wires, secondary lead wires sleeve pipe is positioned at the inside of compound insulating sleeve, is connected with secondary terminal box, for the secondary lead wires of secondary terminal box being linked on iron core to form Secondary Winding, once go between the sleeve pipe lateral direction penetrating central authorities at transformer casing, once goes between for access, and once will go between and be linked on iron core to form a winding, compound insulating sleeve is that glass fibre and resin-bonded manufacture form, silastic-layer adopts silicon rubber umbrella skirt structure, combines closely with described compound insulating sleeve, mutual inductor detects mouth, is arranged on the side of transformer casing, as the detection port of gas in mutual inductor, interface conversion threeway, detects 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 sulfur hexafluoride infrared sensor, it is also provided with tensimeter, sulfur hexafluoride 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, sulfur hexafluoride infrared sensor is for measuring the sulfur hexafluoride 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 detecting the real time temperature of mutual inductor surrounding environment in real time, traffic filter, be connected respectively with tensimeter, sulfur hexafluoride infrared sensor, sulphuric dioxide electrochemical sensor and environment temperature sensor, carry out filtering process respectively for force value, sulfur hexafluoride 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, sulfur hexafluoride purity, content of sulfur dioxide and real time temperature, 8 analog to digital converters, be connected with signal amplifier, for carrying out analog to digital conversion respectively to obtain numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature to force value, sulfur hexafluoride purity, content of sulfur dioxide and the real time temperature after amplification, static memory, for prestoring pressure threshold scope, sulfur hexafluoride purity threshold range, content of sulfur dioxide threshold range and real time temperature threshold range, AT89C51 single-chip microcomputer, is connected the temperature detected to receive infrared thermoviewer with infrared thermoviewer, and when the temperature that infrared thermoviewer detects exceeds default case temperature range, sends skin temperature abnormal alarm signal, also be connected with 8 analog to digital converters by 8 bit input and output interfaces, to receive numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature, also be connected with static memory, to send Pressure Alarm when numerical pressure value exceeds pressure threshold scope, sulfur hexafluoride purity alerting signal is sent when digitizing sulfur hexafluoride purity exceeds sulfur hexafluoride 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 AT89C51 single-chip microcomputer, for showing temperature, numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature that infrared thermoviewer detects in real time, also for showing the word information warning corresponding respectively with skin temperature abnormal alarm signal, Pressure Alarm, sulfur hexafluoride purity alerting signal, content of sulfur dioxide alerting signal and environment temperature alerting signal in real time, audible-visual annunciator, is connected with AT89C51 single-chip microcomputer, for sending the acousto-optic warning signal corresponding with skin temperature abnormal alarm signal, Pressure Alarm, sulfur hexafluoride purity alerting signal, content of sulfur dioxide alerting signal or environment temperature alerting signal, wireless communication interface, be connected with the electrical management server of AT89C51 single-chip microcomputer and far-end, for skin temperature abnormal alarm signal, numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature are sent to electrical management server place in real time by wireless communication link.
More specifically, in described voltage transformer (VT): wireless communication interface is the one in GPRS communication interface, 3G communication interface and 4G communication interface.
More specifically, in described voltage transformer (VT): adopt Ethernet interface to replace wireless communication interface.
More specifically, in described voltage transformer (VT): Ethernet interface adopts internet and electrical management server to set up bidirectional communication link.
More specifically, in described voltage transformer (VT): static memory is SDRAM memory device.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
Fig. 1 is the block diagram of voltage transformer (VT) of the present invention.
Reference numeral: 1 sulfur hexafluoride inflatable-type voltage transformer (VT) main body; 2 sulphuric dioxide electrochemical sensors; 3AT89C51 single-chip microcomputer
Embodiment
Below with reference to accompanying drawings the embodiment of voltage transformer (VT) of the present invention is described in detail.
Mutual inductor (instrumenttransformer) is also called instrument transformer, is the general designation of current transformer and voltage transformer (VT).High voltage can be become low-voltage, big current becomes small area analysis, for measuring or protection system.High voltage or big current scaling transformation are mainly become normal low voltage (100V) or standard small area analysis (5A or 1A by its function; all refer to ratings), to realize standardization, the miniaturization of measurement instrument, proterctive equipment and automatic control equipment.Mutual inductor also can be used to separate high-voltage system simultaneously, to ensure the safety of the person and equipment.
Sulfur hexafluoride inflatable-type voltage transformer (VT) is type the most common in inflatable voltage transformer (VT), but, there is unreasonable structure, defect that qualification rate is lower in sulfur hexafluoride inflatable-type voltage transformer (VT) of the prior art, whether normally sulfur hexafluoride inflatable-type voltage transformer (VT) itself lacks its each running parameter testing mechanism simultaneously.
For this reason, the present invention has built a kind of voltage transformer (VT), can improve the framework of sulfur hexafluoride inflatable-type voltage transformer (VT) in prior art, improves the quality of product, add a series of activities parameter detection equipment on this basis, for the normal operation of voltage transformer (VT) provides powerful guarantee.
Fig. 1 is the block diagram of voltage transformer (VT) of the present invention, described voltage transformer (VT) comprises sulfur hexafluoride inflatable-type voltage transformer (VT) main body, sulphuric dioxide electrochemical sensor and AT89C51 single-chip microcomputer, described sulphuric dioxide electrochemical sensor is used for carrying out sampling analysis to the charge air conditioning in sulfur hexafluoride inflatable-type voltage transformer (VT) main body, to determine content of sulfur dioxide wherein, described AT89C51 single-chip microcomputer is connected with described sulphuric dioxide electrochemical sensor, for determining strategy of reporting to the police based on content of sulfur dioxide.
Then, the structure of voltage transformer (VT) of the present invention is specifically described.
Described voltage transformer (VT) comprises: infrared thermoviewer, is arranged on the opposite of sulfur hexafluoride inflatable-type voltage transformer (VT) main body, for detecting the temperature of transformer casing in real time.
Described voltage transformer (VT) comprises: sulfur hexafluoride inflatable-type voltage transformer (VT) main body, comprises base, secondary terminal box, secondary lead wires sleeve pipe, iron core, transformer casing, once to go between sleeve pipe, burst disk, compound insulating sleeve and silastic-layer; Compound insulating sleeve is positioned at above base, is cylindrical structural; Transformer casing is arranged on above compound insulating sleeve, for cylindrical structural and cross sectional radius is the twice of compound insulating sleeve cross sectional radius; Burst disk is arranged on the top of transformer casing; Silastic-layer is wrapped in the outside of compound insulating sleeve; Secondary terminal box is positioned at the side of base, for accessing secondary lead wires; Secondary lead wires sleeve pipe is positioned at the inside of compound insulating sleeve, is connected with secondary terminal box, for the secondary lead wires of secondary terminal box being linked on iron core to form Secondary Winding; Once go between the sleeve pipe lateral direction penetrating central authorities at transformer casing, once goes between for access, and once will go between and be linked on iron core to form a winding; Compound insulating sleeve is that glass fibre and resin-bonded manufacture form; Silastic-layer adopts silicon rubber umbrella skirt structure, combines closely with described compound insulating sleeve.
Described voltage transformer (VT) comprises: mutual inductor detects mouth, is arranged on the side of transformer casing, as the detection port of gas in mutual inductor; Interface conversion threeway, detects 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 sulfur hexafluoride infrared sensor, it is also provided with tensimeter.
Described voltage transformer (VT) comprises: sulfur hexafluoride 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, sulfur hexafluoride infrared sensor is for measuring the sulfur hexafluoride 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.
Described voltage transformer (VT) comprises: the 4th hand valve, measures air chamber be connected with sulphuric dioxide; Environment temperature sensor, for detecting the real time temperature of mutual inductor surrounding environment in real time; Traffic filter, be connected respectively with tensimeter, sulfur hexafluoride infrared sensor, sulphuric dioxide electrochemical sensor and environment temperature sensor, carry out filtering process respectively for force value, sulfur hexafluoride purity, content of sulfur dioxide and the real time temperature exported tensimeter.
Described voltage transformer (VT) comprises: signal amplifier, is connected with traffic filter, for amplifying respectively filtered force value, sulfur hexafluoride purity, content of sulfur dioxide and real time temperature; 8 analog to digital converters, be connected with signal amplifier, for carrying out analog to digital conversion respectively to obtain numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature to force value, sulfur hexafluoride purity, content of sulfur dioxide and the real time temperature after amplification; Static memory, for prestoring pressure threshold scope, sulfur hexafluoride purity threshold range, content of sulfur dioxide threshold range and real time temperature threshold range.
Described voltage transformer (VT) comprises: AT89C51 single-chip microcomputer, is connected the temperature detected to receive infrared thermoviewer with infrared thermoviewer, and when the temperature that infrared thermoviewer detects exceeds default case temperature range, sends skin temperature abnormal alarm signal, also be connected with 8 analog to digital converters by 8 bit input and output interfaces, to receive numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature, also be connected with static memory, to send Pressure Alarm when numerical pressure value exceeds pressure threshold scope, sulfur hexafluoride purity alerting signal is sent when digitizing sulfur hexafluoride purity exceeds sulfur hexafluoride 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 voltage transformer (VT) comprises: LCDs, be connected with AT89C51 single-chip microcomputer, for showing temperature, numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature that infrared thermoviewer detects in real time, also for showing the word information warning corresponding respectively with skin temperature abnormal alarm signal, Pressure Alarm, sulfur hexafluoride purity alerting signal, content of sulfur dioxide alerting signal and environment temperature alerting signal in real time; Audible-visual annunciator, is connected with AT89C51 single-chip microcomputer, for sending the acousto-optic warning signal corresponding with skin temperature abnormal alarm signal, Pressure Alarm, sulfur hexafluoride purity alerting signal, content of sulfur dioxide alerting signal or environment temperature alerting signal.
Described voltage transformer (VT) comprises: wireless communication interface, be connected with the electrical management server of AT89C51 single-chip microcomputer and far-end, for skin temperature abnormal alarm signal, numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature are sent to electrical management server place in real time by wireless communication link.
Alternatively, in described voltage transformer (VT): wireless communication interface is the one in GPRS communication interface, 3G communication interface and 4G communication interface; Ethernet interface is adopted to replace wireless communication interface; Ethernet interface adopts internet and electrical management server to set up bidirectional communication link; Static memory is SDRAM memory device.
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 voltage transformer (VT) of the present invention, fall behind for sulfur hexafluoride inflatable-type voltage transformer (VT) structure in prior art and lack the technical matters of every checkout equipment, by optimizing the structure of sulfur hexafluoride inflatable-type voltage transformer (VT), improve the properties of product of voltage transformer (VT), more crucially, the checkout equipment such as integrated infrared thermoviewer, tensimeter, sulfur hexafluoride infrared sensor, sulphuric dioxide electrochemical sensor and environment temperature sensor realizes the Autonomous test to various running parameter.
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. a using method for voltage transformer (VT), the method comprises:
1) a kind of voltage transformer (VT) is provided, described voltage transformer (VT) comprises sulfur hexafluoride inflatable-type voltage transformer (VT) main body, sulphuric dioxide electrochemical sensor and AT89C51 single-chip microcomputer, described sulphuric dioxide electrochemical sensor is used for carrying out sampling analysis to the charge air conditioning in sulfur hexafluoride inflatable-type voltage transformer (VT) main body, to determine content of sulfur dioxide wherein, described AT89C51 single-chip microcomputer is connected with described sulphuric dioxide electrochemical sensor, for determining strategy of reporting to the police based on content of sulfur dioxide;
2) described voltage transformer (VT) is used.
2. the method for claim 1, is characterized in that, described voltage transformer (VT) comprises:
Infrared thermoviewer, is arranged on the opposite of sulfur hexafluoride inflatable-type voltage transformer (VT) main body, for detecting the temperature of transformer casing in real time;
Sulfur hexafluoride inflatable-type voltage transformer (VT) main body, comprises base, secondary terminal box, secondary lead wires sleeve pipe, iron core, transformer casing, once to go between sleeve pipe, burst disk, compound insulating sleeve and silastic-layer;
Compound insulating sleeve is positioned at above base, is cylindrical structural;
Transformer casing is arranged on above compound insulating sleeve, for cylindrical structural and cross sectional radius is the twice of compound insulating sleeve cross sectional radius;
Burst disk is arranged on the top of transformer casing;
Silastic-layer is wrapped in the outside of compound insulating sleeve;
Secondary terminal box is positioned at the side of base, for accessing secondary lead wires;
Secondary lead wires sleeve pipe is positioned at the inside of compound insulating sleeve, is connected with secondary terminal box, for the secondary lead wires of secondary terminal box being linked on iron core to form Secondary Winding;
Once go between the sleeve pipe lateral direction penetrating central authorities at transformer casing, once goes between for access, and once will go between and be linked on iron core to form a winding;
Compound insulating sleeve is that glass fibre and resin-bonded manufacture form;
Silastic-layer adopts silicon rubber umbrella skirt structure, combines closely with described compound insulating sleeve;
Mutual inductor detects mouth, is arranged on the side of transformer casing, as the detection port of gas in mutual inductor;
Interface conversion threeway, detects 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 sulfur hexafluoride infrared sensor, it is also provided with tensimeter;
Sulfur hexafluoride 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, sulfur hexafluoride infrared sensor is for measuring the sulfur hexafluoride 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 detecting the real time temperature of mutual inductor surrounding environment in real time;
Traffic filter, be connected respectively with tensimeter, sulfur hexafluoride infrared sensor, sulphuric dioxide electrochemical sensor and environment temperature sensor, carry out filtering process respectively for force value, sulfur hexafluoride 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, sulfur hexafluoride purity, content of sulfur dioxide and real time temperature;
8 analog to digital converters, be connected with signal amplifier, for carrying out analog to digital conversion respectively to obtain numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature to force value, sulfur hexafluoride purity, content of sulfur dioxide and the real time temperature after amplification;
Static memory, for prestoring pressure threshold scope, sulfur hexafluoride purity threshold range, content of sulfur dioxide threshold range and real time temperature threshold range;
AT89C51 single-chip microcomputer, is connected the temperature detected to receive infrared thermoviewer with infrared thermoviewer, and when the temperature that infrared thermoviewer detects exceeds default case temperature range, sends skin temperature abnormal alarm signal, also be connected with 8 analog to digital converters by 8 bit input and output interfaces, to receive numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature, also be connected with static memory, to send Pressure Alarm when numerical pressure value exceeds pressure threshold scope, sulfur hexafluoride purity alerting signal is sent when digitizing sulfur hexafluoride purity exceeds sulfur hexafluoride 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 AT89C51 single-chip microcomputer, for showing temperature, numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature that infrared thermoviewer detects in real time, also for showing the word information warning corresponding respectively with skin temperature abnormal alarm signal, Pressure Alarm, sulfur hexafluoride purity alerting signal, content of sulfur dioxide alerting signal and environment temperature alerting signal in real time;
Audible-visual annunciator, is connected with AT89C51 single-chip microcomputer, for sending the acousto-optic warning signal corresponding with skin temperature abnormal alarm signal, Pressure Alarm, sulfur hexafluoride purity alerting signal, content of sulfur dioxide alerting signal or environment temperature alerting signal;
Wireless communication interface, be connected with the electrical management server of AT89C51 single-chip microcomputer and far-end, for skin temperature abnormal alarm signal, numerical pressure value, digitizing sulfur hexafluoride purity, digitizing content of sulfur dioxide and digitizing real time temperature are sent to electrical management server place in real time by wireless communication link.
3. method as claimed in claim 2, is characterized in that:
Wireless communication interface is the one in GPRS communication interface, 3G communication interface and 4G communication interface.
4. method as claimed in claim 2, is characterized in that:
Ethernet interface is adopted to replace wireless communication interface.
5. method as claimed in claim 4, is characterized in that:
Ethernet interface adopts internet and electrical management server to set up bidirectional communication link.
6. method as claimed in claim 2, is characterized in that:
Static memory is SDRAM memory device.
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| CN201510788523.1A CN105445518B (en) | 2015-11-16 | 2015-11-16 | A kind of voltage transformer |
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| CN201510788523.1A CN105445518B (en) | 2015-11-16 | 2015-11-16 | A kind of voltage transformer |
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| CN105445518B CN105445518B (en) | 2016-10-05 |
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| JP2010243224A (en) * | 2009-04-02 | 2010-10-28 | Meidensha Corp | Method for diagnosing deterioration of heat-resistant polyester varnish |
| CN201421448Y (en) * | 2009-05-08 | 2010-03-10 | 上海莫克电子技术有限公司 | Online SF6 gas monitor for combined electrical apparatus |
| CN102928742A (en) * | 2012-11-22 | 2013-02-13 | 重庆市电力公司检修分公司 | Infrared image automatic fault identifying method for high-voltage equipment |
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