CN202309245U - Power supply device taking disc type insulator leakage current as power source - Google Patents
Power supply device taking disc type insulator leakage current as power source Download PDFInfo
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- CN202309245U CN202309245U CN2011204270336U CN201120427033U CN202309245U CN 202309245 U CN202309245 U CN 202309245U CN 2011204270336 U CN2011204270336 U CN 2011204270336U CN 201120427033 U CN201120427033 U CN 201120427033U CN 202309245 U CN202309245 U CN 202309245U
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Abstract
The utility model discloses a power supply device taking the disc type insulator leakage current as a power source. The power supply device includes a current transformation and accumulator part and an energy controller, wherein the current transformation and accumulator part includes an energy inductor, a rectifier circuit, and an accumulator. The energy inductor, the rectifier circuit, and the accumulator are connected in order. The energy inductor and the accumulator are connected with the energy controller respectively. Because the power supply device takes the leakage current of a power transmission line as the power source, the waste energy is utilized, and the defects of the solar panel application are also avoided. As long as the power transmission line in a power system has the working voltage, the energy source always exists. The power supply device is arranged on a low potential terminal of an insulator chain, and because the device is on the ground potential, the defects of the high voltage line load current power supply are avoided.
Description
Technical field
The utility model relates to a kind of power supply, and relating in particular to a kind of leakage current with the power transmission line disk insulator is the supply unit of the energy.
Background technology
The on-Line Monitor Device of existing high-tension electricity transmission system, or some be operated in remote districts communication device, generally all adopt solar cell to be equipped with the accumulation of energy storage battery again as power supply.Its shortcoming is: use sun-generated electric power will consider that can not provide solar energy evening; The solar energy that the continuous cloudy day provides significantly reduces; Receive the pollution efficient of environment situation such as fade.So, the installation area of solar panel, the installed capacity of storage battery, the capacity that require much larger than the average power of measuring circuit.Cause Heavy Weight, volume is big, and is difficult in maintenance.
Also useful leakage current is as the power supply of photoelectricity stroboscopic, like Wenling, Zhejiang city woods Chinese ilex disclosed " a kind of insulator leakage current photoelectricity stroboscope " (patent No. CN201017018) at present; Or the big many leakage currents of the normal leakage current of ratio that utilizes inferior insulator, move in the monitoring device of signal through electromagnetism and mechanism.But they all still need personnel's line walking, are not telemetering equipments, and the latter be the monitoring inferior insulator device, nonisulated sub-leakage current monitor device.The device that has is placed on the insulator hot end with device; Patent (patent No. CN2625909) like applications such as Xian City, Shanxi Province Yin's benevolence; Through iron-core coil, directly from the load current (non-leakage current) of the high-voltage line of hundred peace ~ kilo-ampere levels, draw energy, because of the iron-core coil device is in hot end; Certainly will cause monitoring device to be in hot end, handle troublesome problem such as a series of highfields, magnetic field.
The utility model content
The purpose of the utility model is the deficiency to prior art, and the supply unit of the online remote monitoring device of a kind of insulator leakage current is provided.
The purpose of the utility model realizes through following technical scheme: a kind of is the supply unit of the energy with the disk insulator leakage current; It comprises: current transformation and accumulator, energy controller; Wherein, current transformation and accumulator comprise: energy-sensitive device, rectification circuit and accumulator; Energy-sensitive device, rectification circuit and accumulator link to each other successively, and the energy-sensitive device links to each other with energy controller respectively with accumulator.
Further, said energy-sensitive device mainly is made up of energy winding L 1 and induction winding L 2 unshakable in one's determination, on iron core.
Further, said energy controller comprises: the first vent diverter F1, the second vent diverter F2, the 3rd vent diverter F3, four resistance R 1 ~ R4, processor, dissipative cell, amplifier G and relays; Wherein, ground connection after resistance R 2, resistance R 1 and energy winding L 1 are connected successively, the first vent diverter F1 is parallelly connected with energy winding L 1; The second vent diverter F2, one end ground connection, the other end are inserted between resistance R 2 and the resistance R 3, the 3rd vent diverter F3 one end ground connection; The other end of the other end and resistance R 2 joins; One end of accumulator links to each other with resistance R 4 with the contact K of processor power supply end, relay respectively, and resistance R 4 links to each other with processor A/D port with resistance R 3 respectively, the other end ground connection of resistance R 3; Ground connection after processor links to each other with the coil L3 of relay through amplifier G, the other end of the contact K of relay links to each other with dissipative cell.The energy consumption element can be resistance or any can catabiotic circuit.
Further, two inputs of said rectification circuit link to each other with the two ends of induction winding L 2 respectively, and two outputs of rectification circuit connect the two ends of accumulator E respectively.
The beneficial effect of the utility model is: the utility model is the energy with the leakage current of transmission line; Not only utilized the discarded energy; Also avoided using the shortcoming of solar panels, as long as there is operating voltage in power system transmission line, this energy is to exist forever in the past.The utility model supply unit is the cold end at insulator string, and device is in earth potential, has avoided the shortcoming of high-voltage line load current power supply.
Description of drawings
Fig. 1 is the structured flowchart of the utility model;
Fig. 2 is the circuit diagram of the utility model.
Embodiment
The leakage current of the insulator of high-tension electricity power transmission line is a kind of unemployed discarded energy.The leakage current of the insulator of high-tension electricity power transmission line is usually at the extremely hundreds of microamperes of tens of microamperes; The leakage current of insulator has the current source characteristic; And receive the influence of environment, weather and service time very big; Current value usually can arrive a milliampere level (a title overcurrent) when increasing, can reach thousands of peaces or bigger value (claiming unusual overcurrent) because of pollution flashover, thunderbolt etc. causes that electric current very causes sometimes, and the energy supply is very unstable.It is the voltage source of interchange or direct current that general electric device requires power supply, though leakage current has been an electric weight, it is a current source, can't be directly its power supply as electric device.The supply unit of the utility model is with leakage current, becomes the desired power supply of common electric device later through current transformation and accumulator, energy controller acting in conjunction.
The structure of the utility model is as shown in Figure 1.Comprise: current transformation and accumulator, energy controller, current transformation and accumulator comprise: energy-sensitive device, rectification circuit, accumulator; Wherein, energy-sensitive device, rectification circuit and accumulator link to each other successively, and the energy-sensitive device links to each other with energy controller respectively with accumulator.
Particularly, the utility model is that the circuit diagram of supply unit of the energy is as shown in Figure 2 with the disk insulator leakage current.The energy-sensitive device mainly is made up of energy winding L 1 and induction winding L 2 unshakable in one's determination, on iron core.Among the figure; The bridge circuit of rectification circuit for constituting by four diode D1-D4; But be not limited thereto; In fact, rectification circuit can be for converting alternating current into galvanic circuit arbitrarily, as: if single-phase centre cap formula all-wave has a plurality of windings can also use half-wave rectifying circuit, voltage doubling rectifing circuit etc.Accumulator can like storage battery, large bulk capacitance etc., be chargeable storage E shown in the figure for storing arbitrarily the device of electric weight, the input of the two ends access rectification circuit of induction winding L 2, the two ends of the output termination storage battery E of rectification circuit.Energy controller comprises: the first vent diverter F1, the second vent diverter F2, the 3rd vent diverter F3, four resistance R 1 ~ R4, processor, dissipative cell, amplifier G and relays.Ground connection after resistance R 2, resistance R 1 and energy winding L 1 are connected successively, the first vent diverter F1 is parallelly connected with energy winding L 1, the second vent diverter F2, one end ground connection; The other end inserts between resistance R 2 and the resistance R 1, the 3rd vent diverter F3 one end ground connection, and the other end of the other end and resistance R 2 joins; The 3rd vent diverter F3 and resistance R 2 joints are as the leakage current input of the utility model supply unit; The end ground connection of storage battery E, the other end link to each other with resistance R 4 with the contact K of processor power supply end, relay respectively, and resistance R 4 links to each other with processor with resistance R 3 respectively; The other end ground connection of resistance R 3; Ground connection after processor links to each other with the coil L3 of relay through amplifier G, the other end of the contact K of relay links to each other with dissipative cell, and the contact K of relay is as the electric energy output end of the utility model supply unit.In fact, the two ends of induction coil can also be as the electric output of the alternation of device, shown in figure one dotted line.
The first vent diverter F1 is used for overcurrent protection; The second vent diverter F2 is used for unusual overcurrent protection, after leakage current is above the overcurrent value of setting, and the first vent diverter F1 conducting; The electric current that divides throughflow guarantees energy winding nonoverload and reduces the energy supply.After surpassing unusual overcurrent protection set point, the second vent diverter F2 conducting prevents that super-high-current from damaging device.The first vent diverter F1 and the second vent diverter F2 can be gas discharge tube, piezo-resistance, strong discharge tube, diode or and they the lightning-arrest element of similar characteristics is arranged, and can carry out multi-stage protection, the 3rd vent diverter F3 can be gas discharge tube.When overvoltage, data unit is connected, with dissipative cell as the unnecessary energy of load consumption.Except that processor was in resting state, all other circuit quit work or make dormancy, to reduce battery consumption when under-voltage.
Dissipative cell can be transmitter and other measurement component or special-purpose overvoltage power consumption resistance.Processor can be single-chip microcomputer, DSP or the control circuit that is made up of discrete component, and processor is measured cell voltage with the A/D port.When cell voltage is too high; To relay coil L3, control contact K connects it to output signal of processor, consumes unnecessary energy with dissipative cell through amplifier G; Cut-off switch when recovering normal range of operation; When cell voltage is crossed when low,, make other element quit work or make its dormancy except that processor is in the resting state.
The energy-sensitive device is different with transformation; The former limit of transformer normally is connected to voltage source; Primary current becomes with load, changes sizable current source and the electric current character of the energy winding of the energy-sensitive device here is current values, and the electric current of energy winding is not become with load variations.Also summation current transformer is different for it.The secondary of current transformer is to be operated in short-circuit condition, and magnetic flux density unshakable in one's determination is very low.The induction winding of energy-sensitive device then is not to be operated in short-circuit condition here, and magnetic flux density unshakable in one's determination also is not necessarily very low.And the voltage waveform of its work is also different with them; When common transformer original edge voltage is sinusoidal (or the electric current of current transformer is for sinusoidal); Its winding voltage (or electric current) peak factor is
; And the energy-sensitive device is when the electric current of energy winding is sine; In its working range; Its instantaneous voltage reaches behind the energy-storage travelling wave tube voltage because the restriction of energy-storage travelling wave tube; Instantaneous voltage just no longer rises or rises seldom, so the peak factor of its voltage is less than
.Because accumulator has voltage source character, the voltage of the induction winding that is connected with rectifier receives the control of the voltage of accumulator, also demonstrates the character of voltage source.That is to say the utility model supply unit, the energy of its input has current source character, and the energy of its output has voltage source character.
The course of work of the utility model is following: leakage current through the energy coil-induced to induction coil through rectification to charge in batteries.Because storage battery approaches voltage source, it has controlled induction coil voltage, makes it be voltage source character.Vent diverter F1, F2, the unnecessary leakage current of F3 shunting are done preliminary control to the energy of input.Voltage reflection cell voltage on the R3 among voltage divider R3, the R4, the voltage on R3 surpasses set point, and output signal of processor is amplified through amplifier makes relay contact closed, connects dissipative cell, and supply unit is in the excess energy state that discharges.Return to when the voltage on the R3 below the battery ULN value of setting, processor output recovers normal signal opens relay contact, and supply unit is in normal operating conditions.Voltage on R3 is lower than the battery lower limit of setting, output signal of processor, and brownout device consumed energy to lower battery, only keeps the components and parts of specific (special) requirements to use less energy.When design, should avoid providing the situation of energy shortage to occur, at this moment a kind of safeguard measure of fortuitous event.
Embodiment
Fig. 2 is the examples of implementation of the insulator leakage current remote monitoring device of the outdoor location energy for the leakage current with transmission line.The energy winding L 1 that the line leak electric current gets into supply unit by voltage matches resistance R 1, R2 is then to ground.Charge to storage battery E in rectification circuit D1 ~ 4 backs that connect the bridge-type detection in 2 outputs of induction winding L.Dissipative cell connects the battery two ends.After the accumulator cell voltage surpassed the power supply setting value, output signal of processor made control switch contact K conducting, connected the transmitter as the energy release, discharged the unnecessary electric weight of battery.After cell voltage returned to below the setting value, output signal of processor was broken off make and break contact K, stops to discharge the energy content of battery.After leakage current has exceeded the numerical value of adjusting, the current diverter F of over-current protecting element
1Transient voltage restraining diode F
1The electric current of L1 has been shunted in conducting, prevents energy winding overload.When very big pulse current occurring, the strong discharge tube F2 of the voltage limiter of unusual over-current protecting element, gas discharge tube F3 puncture, and prevent that circuit from damaging, and F2, F3 have been double protections.F
2, F
3Can adopt different types of components, for different pulse current waveform, F
2, F
3The priority that punctures possibly be different.
Claims (4)
1. one kind is the supply unit of the energy with the disk insulator leakage current, it is characterized in that it comprises: current transformation and accumulator, energy controller; Wherein, current transformation and accumulator comprise: energy-sensitive device, rectification circuit and accumulator; Energy-sensitive device, rectification circuit and accumulator link to each other successively, and the energy-sensitive device links to each other with energy controller respectively with accumulator.
2. supply unit according to claim 1 is characterized in that, said energy-sensitive device mainly is made up of energy winding L 1 and induction winding L 2 unshakable in one's determination, on iron core.
3. supply unit according to claim 2; It is characterized in that said energy controller comprises: the first vent diverter F1, the second vent diverter F2, the 3rd vent diverter F3, four resistance R 1 ~ R4, processor, dissipative cell, amplifier G, relay and accumulator E etc.; Wherein, ground connection after resistance R 2, resistance R 1 and energy winding L 1 are connected successively, the first vent diverter F1 is parallelly connected with energy winding L 1; The second vent diverter F2, one end ground connection; The other end inserts between resistance R 2 and the resistance R 1, the 3rd vent diverter F3 one end ground connection, and the other end of the other end and resistance R 2 joins; The end ground connection of accumulator E; The other end links to each other with contact K, the resistance R 4 of processor power supply end, relay respectively, and resistance R 4 links to each other with processor A/D port with resistance R 3 respectively, the other end ground connection of resistance R 3; Ground connection after the signal output that the processor control energy discharges links to each other with the coil L3 of relay through amplifier G, the other end of the contact K of relay links to each other with dissipative cell.
4. according to claim 2 or 3 described supply units, it is characterized in that two inputs of said rectification circuit link to each other with the two ends of induction winding L 2 respectively, two outputs of rectification circuit connect the two ends of accumulator E respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204270336U CN202309245U (en) | 2011-11-02 | 2011-11-02 | Power supply device taking disc type insulator leakage current as power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204270336U CN202309245U (en) | 2011-11-02 | 2011-11-02 | Power supply device taking disc type insulator leakage current as power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309245U true CN202309245U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204270336U Withdrawn - After Issue CN202309245U (en) | 2011-11-02 | 2011-11-02 | Power supply device taking disc type insulator leakage current as power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202309245U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364819A (en) * | 2011-11-02 | 2012-02-29 | 丽水电业局 | Power supply apparatus taking leakage current of disk insulator as energy |
| TWI609187B (en) * | 2013-06-26 | 2017-12-21 | Fuji Electric Fa Components & Systems Co Ltd | Insulation monitoring device |
| CN110231536A (en) * | 2019-07-25 | 2019-09-13 | 云南电网有限责任公司电力科学研究院 | A kind of grid power leakage monitoring device and method |
-
2011
- 2011-11-02 CN CN2011204270336U patent/CN202309245U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364819A (en) * | 2011-11-02 | 2012-02-29 | 丽水电业局 | Power supply apparatus taking leakage current of disk insulator as energy |
| TWI609187B (en) * | 2013-06-26 | 2017-12-21 | Fuji Electric Fa Components & Systems Co Ltd | Insulation monitoring device |
| US9857408B2 (en) | 2013-06-26 | 2018-01-02 | Fuji Electric Fa Components & Systems Co., Ltd. | Insulation monitoring device |
| CN110231536A (en) * | 2019-07-25 | 2019-09-13 | 云南电网有限责任公司电力科学研究院 | A kind of grid power leakage monitoring device and method |
| CN110231536B (en) * | 2019-07-25 | 2021-07-20 | 云南电网有限责任公司电力科学研究院 | Power grid leakage monitoring device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120704 Effective date of abandoning: 20130807 |
|
| RGAV | Abandon patent right to avoid regrant |