CN209000810U - A kind of photovoltaic power generation grid-connecting outdoor disconnector - Google Patents
A kind of photovoltaic power generation grid-connecting outdoor disconnector Download PDFInfo
- Publication number
- CN209000810U CN209000810U CN201821892017.2U CN201821892017U CN209000810U CN 209000810 U CN209000810 U CN 209000810U CN 201821892017 U CN201821892017 U CN 201821892017U CN 209000810 U CN209000810 U CN 209000810U
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- Prior art keywords
- resistance
- amplifier
- voltage
- circuit board
- temperature measuring
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- 238000010248 power generation Methods 0.000 title claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 239000000314 lubricant Substances 0.000 claims abstract description 9
- 230000005611 electricity Effects 0.000 claims description 19
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000006698 induction Effects 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 4
- 230000003993 interaction Effects 0.000 claims description 3
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000009529 body temperature measurement Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Substances [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000004861 thermometry Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The utility model discloses a kind of photovoltaic power generation grid-connecting outdoor disconnectors, including insulation crust and with high voltage isolator conductor, the top of the insulation crust, which is run through, is connected with lubricant reservoir, minisize dc pump is fixedly installed on the inner wall of the lubricant reservoir, the right end of the minisize dc pump, which runs through, is connected with temperature measuring circuit board, the right end of the temperature measuring circuit board is connected with processor, the lower part of the temperature measuring circuit board is also fixedly installed with high voltage isolator conductor, the temperature measuring circuit board includes amplifier and the first voltage-stablizer, the two sides of first voltage-stablizer are simultaneously connected to the first adjustable resistance, the positive terminal branch road of first voltage-stablizer passes through first resistor and is connected with input signal cable, first adjustable resistance and connect branch road and be also respectively connected second resistance and 3rd resistor, device realizes the passive of wireless temperature measurement, it mentions High safety, more efficiently and accurately have many advantages, such as the high and low cost of precision, intuitive and reliable and easy for installation.
Description
Technical field
The utility model relates to photovoltaic power generation grid-connecting technical field, in particular to a kind of photovoltaic power generation grid-connecting open air keeps apart
It closes.
Background technique
With the continuous propulsion that the continuous development of China electric power industry and smart grid are built, to power equipment intelligence and
The requirement of operational reliability is higher and higher.Disconnecting switch is as the maximum a kind of switchgear of usage amount in electric system, in height
It is run under voltage, current state, functional reliability and contact temperature rise have close relationship.During operation of power networks,
Due to the contact of open isolating switch be affected by the external environment it is larger, because contact surface is unclean, contact oxidation, electric arc impact, machine
Tool deformation loosens, the reasons such as not in place, overload of closing a floodgate cause contact worsening condition, eventually leads to contact overheat and burns very
Accident to power failure happens occasionally, and seriously affects the safe and stable operation of power grid.
Currently used temp measuring method mainly has infrared thermometry, optical fiber temperature-measurement, sensor thermometric etc., but can not also solve
Certainly in High Voltage electromagnetic environment, the wireless transmission of In-Line Temperature Measure System data, the energy resource supply of working sensor, equipment height can
By the problem of property etc., and poor anti jamming capability, it is not very practical.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of photovoltaic power generation grid-connecting outdoor disconnector, inexpensive,
High efficiency, strong antijamming capability, environmental adaptability are good, can effectively solve the problems in background technique in this way.
In order to solve the above-mentioned technical problem, a kind of the technical solution of the utility model are as follows: photovoltaic power generation grid-connecting open air isolation
Switch, including insulation crust and with high voltage isolator conductor, the top of the insulation crust is through being connected with lubricant reservoir, institute
It states and is fixedly installed with minisize dc pump on the inner wall of lubricant reservoir, the right end of the minisize dc pump, which runs through, is connected with temperature measurement circuit
Plate, the right end of the temperature measuring circuit board are connected with processor, and the lower part of the temperature measuring circuit board is also fixedly installed with high_voltage isolation
Switch conductor, the temperature measuring circuit board include amplifier and the first voltage-stablizer, and the two sides of first voltage-stablizer are simultaneously connected to first
Adjustable resistance, the positive terminal branch road of first voltage-stablizer pass through first resistor and are connected with input signal cable, and described first can
Adjust resistance and connect branch road second resistance and 3rd resistor is also respectively connected, the other end of the second resistance is connected with row
Needle, the other end of the second resistance also pass through the 4th resistance and are connected with amplifier, and the other end of the 3rd resistor is connected with
Second adjustable resistance and the 5th resistance, the other end of second adjustable resistance are connected with row's needle, the 5th resistance it is another
One end is connected with amplifier reverse side, and the in-phase end of the amplifier also passes through the 6th resistance and is directly grounded, the amplifier
Output end the in-phase end of amplifier is connected to by the 7th resistance feedback, the output end of the amplifier is also connected with the 8th electricity
The output end branch road of resistance, the 8th resistance is also connected with the second voltage-stabiliser tube and first capacitor.
As the utility model a preferred technical solution, it is set as simultaneously between second voltage-stabiliser tube and first capacitor
Output signal line is connected in the parallel branch of connection connection, second voltage-stabiliser tube and first capacitor.
As the utility model a preferred technical solution, the power end of the amplifier is connected with power supply, described to put
The power end of big device also passes through the second capacitor and is directly grounded.
As the utility model a preferred technical solution, the inside of the processor is additionally provided with microcontroller, institute
The signal end interactive connection for stating microcontroller has A/D converter, the input terminal of the A/D converter and the signal of temperature measuring circuit board
End is connected, and the power end of the microcontroller is also connected with induction energy fetching device.
As the utility model a preferred technical solution, being internally provided with for the induction energy fetching device takes electric adjusting
Circuit is protected, the interaction port for taking electricity to adjust protection circuit is connected with rectifier filter, the signal of the rectifier filter
End is connected with high voltage isolator conductor.
By adopting the above technical scheme, by the way that wireless temperature-measuring terminal and sensing electricity getting device are mounted on high voltage isolator
On, electric energy is obtained from high voltage isolator by way of undesirable mutual electromagnetic inductance by sensing electricity getting device, and be supplied to wireless temperature measurement
Terminal, it is adaptable to high-pressure conductor curent change, it realizes the passive of wireless temperature measurement, improves safety, wireless temperature measurement
Pt resistance temperature sensor in terminal is directly contacted with high voltage isolator, for applying more non-contact, non-reality at present
When the infrared measurement of temperature mode that monitors for, more efficiently and accurately；Cheap compared to the wired thermometric mode of optical fiber, environment adapts to
Property is strong, has many advantages, such as the high and low cost of precision, intuitive and reliable and easy for installation.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the utility model temperature measuring circuit board temperature measurement circuit figure；
Fig. 3 is the utility model control module schematic diagram；
In figure, 1- insulation crust；2- lubricant reservoir；3- minisize dc pump；4- temperature measuring circuit board；5- processor；6- high pressure
Disconnecting switch conductor；
501- microcontroller；502-A/D converter；503- induction energy fetching device；504- takes electricity to adjust protection circuit；505-
Rectifier filter.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that
The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This
Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other
It can be combined with each other.
Please refer to Fig.1 to Fig.3, the utility model provides a kind of technical solution: a kind of photovoltaic power generation grid-connecting open air keeps apart
It closes, including insulation crust and 1 and high voltage isolator conductor 6, the top of the insulation crust 1, which is run through, is connected with lubricant reservoir 2,
Minisize dc pump 3 is fixedly installed on the inner wall of the lubricant reservoir 2, the right end of the minisize dc pump 3, which runs through, is connected with survey
Circuit temperature plate 4, the right end of the temperature measuring circuit board 4 are connected with processor 5, and the lower part of the temperature measuring circuit board 4 is also fixedly mounted
There is high voltage isolator conductor 6, the temperature measuring circuit board 4 includes amplifier A1 and the first voltage-stablizer U1, first voltage-stablizer
The two sides of U1 and the positive terminal branch road for being connected to the first adjustable resistance VR1, the first voltage-stablizer U1 pass through first resistor R1 and connect
It is connected to input signal cable, first adjustable resistance VR1's and connects branch road second resistance R2 and third electricity is also respectively connected
R3 is hindered, the other end of the second resistance R2 is connected with row needle JP1, and the other end of the second resistance R2 also passes through the 4th resistance
R4 is connected with amplifier A1, and the other end of the 3rd resistor R3 is connected with the second adjustable resistance VR2 and the 5th resistance R5, described
The other end of second adjustable resistance VR2 is connected with row needle JP1, the other end and amplifier A1 reverse side of the 5th resistance R5
It is connected, the in-phase end of the amplifier A1 also passes through the 6th resistance R6 and is directly grounded, and the output end of the amplifier A1 passes through
7th resistance feedback is connected to the in-phase end of amplifier A1, and the output end of the amplifier A1 is also connected with the 8th resistance R8, institute
The output end branch road for stating the 8th resistance R8 is also connected with the second voltage-stabiliser tube U2 and first capacitor C1, the second voltage-stabiliser tube U2 and
It is set as being connected in parallel between first capacitor C1, be connected in the parallel branch of the second voltage-stabiliser tube U2 and first capacitor C1 defeated
Signal wire Output out, the power end of the amplifier A1 are connected with power supply VCC, and the power end of the amplifier A1 also passes through
Two capacitor C2 are directly grounded GND.
In the present embodiment, temperature measuring circuit board 4 uses the rectification building-out method based on operational amplifier A1 circuit, in conjunction with
The soft bearing calibration of linear interpolation that algorithm is simple, correction accuracy is high, efficiently solves the nonlinearity erron of Pt Resistance Temperature Measuring Circuit
Problem improves measurement accuracy, and there is anti-high intensity to fall and shake, anti-soaking, protecting against shock, meets industrial environment requirement.
The inside of the processor 5 is additionally provided with microcontroller 501, the signal end interactive connection of the microcontroller 501
There is A/D converter 502, the input terminal of the A/D converter 502 is connected with the signal end of temperature measuring circuit board 4, the microcontroller
The power end of device 501 is also connected with induction energy fetching device 503, and being internally provided with for the induction energy fetching device 503 takes electric tune
Section protection circuit 504, the interaction port for taking electricity to adjust protection circuit 504 are connected with rectifier filter 505, the rectification filter
The signal end of wave device 505 is connected with high voltage isolator conductor 6.
In the present embodiment, electric energy is obtained using electromagnetic induction principle, and realize the novel power supply device of burning voltage output,
Temperature sensing circuit predominantly detects the temperature data from Pt platinum resistance, and the wireless transmitter module inside microcontroller 501 will be warm
Degree is transmitted wirelessly to Data Centralized Processing device according to by 433MHz.
In the present embodiment, induction energy fetching device 503 can well solve the powerup issue of sensor, and small in size, peace
Dress is convenient, and the circuit of sensing electricity getting device mainly includes that electricity is taken to adjust protection circuit 504 and rectifier filter 505, electricity taking coil
The voltage and current that exchange is induced from transmission line of electricity can export steady dc voltage after the conditioning of each circuit
It uses to monitoring device, wherein the electric energy of input module can be adjusted and limit in real time by taking electricity to adjust protection circuit 504, absorbs
Because of the instantaneous large-current caused by special circumstances such as lightning stroke, guarantee that module can remain to output when transmission pressure electric current is unstable and stablize
Voltage.
In the present embodiment, sensing electricity getting device and temperature sensing circuit use integrated design, and disconnecting switch is during installation
It is fixed on high-pressure conductor or transmission line of electricity, and high-pressure conductor is passed through, energy buckle-type is taken to take energy sensor, it is normal in conducting wire
Stable power supply output is provided in current range, and can realize self-protection under short circuit and dash current, is realized long-term
Low heat dissipation stable operation becomes the excellent selection for solving high-tension apparatus energy supply problem.
Working principle of the utility model is: being opened by the way that wireless temperature-measuring terminal is mounted on high_voltage isolation with sensing electricity getting device
It shuts, obtains electric energy from high voltage isolator by way of undesirable mutual electromagnetic inductance by sensing electricity getting device, and be supplied to wireless survey
Warm terminal, it is adaptable to high-pressure conductor curent change, it realizes the passive of wireless temperature measurement, improves safety.It is wireless to survey
Pt resistance temperature sensor in warm terminal is directly contacted with high voltage isolator, at present using more non-contact, non-
For the infrared measurement of temperature mode of real-time monitoring, more efficiently and accurately；Cheap compared to the wired thermometric mode of optical fiber, environment is suitable
Ying Xingqiang has many advantages, such as the high and low cost of precision, intuitive and reliable and easy for installation.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.
Claims (5)
1. a kind of photovoltaic power generation grid-connecting outdoor disconnector, including insulation crust and (1) and high voltage isolator conductor (6),
Be characterized in that: the top of the insulation crust (1) is through being connected with lubricant reservoir (2), on the inner wall of the lubricant reservoir (2) admittedly
Equipped with minisize dc pump (3), the right end of the minisize dc pump (3), which runs through, is connected with temperature measuring circuit board (4), the thermometric for Dingan County
The right end of circuit board (4) is connected with processor (5), and the lower part of the temperature measuring circuit board (4) is also fixedly installed with high_voltage isolation and opens
It closes conductor (6), the temperature measuring circuit board (4) includes amplifier A1 and the first voltage-stablizer U1, the two sides of the first voltage-stablizer U1
And the positive terminal branch road for being connected to the first adjustable resistance VR1, the first voltage-stablizer U1 passes through first resistor R1 and is connected with input
Signal wire, first adjustable resistance VR1's and connect branch road second resistance R2 and 3rd resistor R3 are also respectively connected, described
The other end of second resistance R2 is connected with row needle JP1, and the other end of the second resistance R2 also passes through the 4th resistance R4 and is connected with
Amplifier A1, the other end of the 3rd resistor R3 are connected with the second adjustable resistance VR2 and the 5th resistance R5, and described second is adjustable
The other end of resistance VR2 is connected with row needle JP1, and the other end of the 5th resistance R5 is connected with amplifier A1 reverse side,
The in-phase end of the amplifier A1 also passes through the 6th resistance R6 and is directly grounded, and the output end of the amplifier A1 passes through the 7th resistance
For feedback link to the in-phase end of amplifier A1, the output end of the amplifier A1 is also connected with the 8th resistance R8, the 8th electricity
The output end branch road for hindering R8 is also connected with the second voltage-stabiliser tube U2 and first capacitor C1.
2. a kind of photovoltaic power generation grid-connecting outdoor disconnector according to claim 1, it is characterised in that: second pressure stabilizing
It is set as being connected in parallel between pipe U2 and first capacitor C1, connect in the parallel branch of the second voltage-stabiliser tube U2 and first capacitor C1
It is connected to output signal line Output.
3. a kind of photovoltaic power generation grid-connecting outdoor disconnector according to claim 1, it is characterised in that: the amplifier A1
Power end be connected with power supply VCC, the power end of the amplifier A1 also passes through the second capacitor C2 and is directly grounded GND.
4. a kind of photovoltaic power generation grid-connecting outdoor disconnector according to claim 1, it is characterised in that: the processor
(5) inside is additionally provided with microcontroller (501), and the signal end interactive connection of the microcontroller (501) has A/D converter
(502), the input terminal of the A/D converter (502) is connected with the signal end of temperature measuring circuit board (4), the microcontroller
(501) power end is also connected with induction energy fetching device (503).
5. a kind of photovoltaic power generation grid-connecting outdoor disconnector according to claim 4, it is characterised in that: the induction energy fetching
Being internally provided with for device (503) takes electricity to adjust protection circuit (504), the interaction end for taking electricity to adjust protection circuit (504)
Mouth is connected with rectifier filter (505), and the signal end of the rectifier filter (505) is connected with high voltage isolator conductor (6)
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892017.2U CN209000810U (en) | 2018-11-16 | 2018-11-16 | A kind of photovoltaic power generation grid-connecting outdoor disconnector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821892017.2U CN209000810U (en) | 2018-11-16 | 2018-11-16 | A kind of photovoltaic power generation grid-connecting outdoor disconnector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209000810U true CN209000810U (en) | 2019-06-18 |
Family
ID=66806817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821892017.2U Active CN209000810U (en) | 2018-11-16 | 2018-11-16 | A kind of photovoltaic power generation grid-connecting outdoor disconnector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209000810U (en) |
-
2018
- 2018-11-16 CN CN201821892017.2U patent/CN209000810U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 650000, 18th Floor, Building 3, Yunjingyuan, Zhongyue Garden, Guanshang Street, Guandu District, Kunming City, Yunnan Province Patentee after: YUNNAN SHUOMING POWER ENGINEERING Co.,Ltd. Country or region after: China Address before: 650200, 2nd Floor, Cargo Department Office Building, Wujiaba International Airport, Guandu District, Kunming City, Yunnan Province Patentee before: YUNNAN SHUOMING POWER ENGINEERING Co.,Ltd. Country or region before: China |
|
| CP03 | Change of name, title or address |