CN201237629Y - Fault monitor with self-power supply - Google Patents
Fault monitor with self-power supply Download PDFInfo
- Publication number
- CN201237629Y CN201237629Y CNU2008200297982U CN200820029798U CN201237629Y CN 201237629 Y CN201237629 Y CN 201237629Y CN U2008200297982 U CNU2008200297982 U CN U2008200297982U CN 200820029798 U CN200820029798 U CN 200820029798U CN 201237629 Y CN201237629 Y CN 201237629Y
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- 238000004146 energy storage Methods 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 238000012806 monitoring device Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of fault monitoring equipment of the distribute network, in particular to a self-powered fault monitor. The utility model provides a self-powered circuit of the fault monitor so as to solve the problems that the existing fault monitor can not obtain reliable power supply and the monitor is hard to work. Aiming at the problems of the prior art, the technical proposal provided by the utility model is as follows: the self-powered fault monitor comprises a power-acquiring circuit and is characterized in that the power-acquiring circuit comprises a power-acquiring coil, a rectifier, a voltage-limiting filter and a DC/DC converter which are connected in sequence, and also comprises an energy storage unit which is connected with the DC/DC converter. The utility model has the advantages that power is directly acquired from high-voltage wire, the service life of the monitoring device is greatly prolonged and can be used all the time only the monitoring equipment does not occur fault.
Description
Technical field:
The utility model relates to distribution network failure monitoring equipment technical field, is specifically related to the self-powered fault monitor of a kind of employing.
Background technology:
Along with the raising of living standards of the people, also increasing to the dependence of electric energy, in order to improve the reliability of power supply, power distribution network especially urban power distribution network becomes increasingly complex.In order to improve power supply reliability, reduce loss of outage, the localization of fault of power distribution network is more and more important, has also just produced a large amount of fault monitors that are suspended on the electrical network.Fault monitor is suspended on the high-voltage conducting wires, is not easy to introduce working power, generally all uses powered battery, and whole monitor seals, and battery can not be changed.Because the use of battery is subjected to the finiteness of temperature limitation and its energy, battery life is short, and the battery life termination means that monitor also gone to the end.Because the individual difference of product, therefore the moment difference of life termination exists and can not reliably be powered, and monitor is difficult to the problem of steady operation.
Summary of the invention:
The utility model will provide a kind of self-powered circuit of fault monitor, and to solve can not reliably being powered that existing fault monitor exists, monitor is difficult to the problem of steady operation.
For overcoming the problem that prior art exists, the technical scheme that the utility model provides is: the self-powered fault monitor of a kind of employing, comprise the power supply acquisition cuicuit, its special character is that described power supply acquisition cuicuit comprises power taking coil, rectifier, pressure limiting wave filter and the DC/DC converter that joins successively; Also comprise an energy-storage units in parallel with the DC/DC converter.
Above-mentioned power taking coil is ribbon core and closed coil; Described energy-storage units is capacitance energy storage element or batteries to store energy element; Described DC/DC converter is the DC-DC converter of booster type or voltage-dropping type.
Compared with prior art, the utility model has the advantages that:
The utility model is directly power taking from the high-voltage conducting wires, has prolonged the serviceable life of monitoring device greatly, as long as monitoring equipment itself does not break down, just can use always.
Description of drawings:
Fig. 1 is a theory diagram of the present utility model;
Fig. 2 is circuit theory diagrams.
Embodiment:
Below in conjunction with accompanying drawing the utility model is explained.
Referring to Fig. 1, the utility model comprises the power supply acquisition cuicuit, and this power supply acquisition cuicuit comprises power taking coil 1, rectifier 2, pressure limiting wave filter 3 and the DC/DC converter 5 that joins successively; Also comprise an energy-storage units 4 in parallel with DC/DC converter 5.
Power taking coil 1 receives the magnetic energy around the lead, and is converted into electric energy;
Rectifier 2 converts alternating voltage to DC voltage;
3 pairs of DC voltage of pressure limiting wave filter are handled;
The suitable DC voltage of DC/DC converter 5 outputs is given load;
The energy-storage units 4 in parallel with DC/DC converter 5 gets up unnecessary power storage.
Referring to Fig. 2.In the said power supply acquisition cuicuit:
Power taking coil 1 is ribbon core and closed coil, and it receives the magnetic energy around the lead, and is converted into electric energy;
Pressure limiting wave filter 3 selects for use voltage stabilizing diode and electric capacity to realize;
DC/DC converter 5 optional buck DC/DC converters, optional 7805 chips of core parts;
Energy-storage units 4 in parallel with DC/DC converter 5 in this power supply acquisition cuicuit selects for use the capacitance energy storage element as main element.
Principle of work of the present utility model is: when in lead electric current being arranged, can obtain certain energy by power taking coil 1, through rectifier 2, convert alternating voltage to DC voltage, handle by 3 pairs of DC voltage of pressure limiting wave filter again, a part is supplied with the observation circuit of fault monitor and is monitored usefulness in real time, unnecessary part can by the large value capacitor in the energy-storage units 4 preserve supply and demand will the time use.
Claims (2)
1, the self-powered fault monitor of a kind of employing comprises the power supply acquisition cuicuit, it is characterized in that: described power supply acquisition cuicuit comprises power taking coil (1), rectifier (2), pressure limiting wave filter (3) and the DC/DC converter (5) that joins successively; Also comprise an energy-storage units (4) in parallel with DC/DC converter (5).
2, the self-powered fault monitor of a kind of employing as claimed in claim 1 is characterized in that: described power taking coil (1) is ribbon core and closed coil; Described energy-storage units (4) is capacitance energy storage element or batteries to store energy element; Described DC/DC converter (5) is the DC-DC converter of booster type or voltage-dropping type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200297982U CN201237629Y (en) | 2008-07-30 | 2008-07-30 | Fault monitor with self-power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200297982U CN201237629Y (en) | 2008-07-30 | 2008-07-30 | Fault monitor with self-power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201237629Y true CN201237629Y (en) | 2009-05-13 |
Family
ID=40650363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200297982U Expired - Fee Related CN201237629Y (en) | 2008-07-30 | 2008-07-30 | Fault monitor with self-power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201237629Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590574A (en) * | 2012-03-14 | 2012-07-18 | 昆明迪森电气有限公司 | Digital current transformer based on induction power supply and monitoring method for digital current transformer |
| CN102735988A (en) * | 2011-04-06 | 2012-10-17 | 戚宇林 | Distribution network single-phase ground fault positioning method |
| CN103595269A (en) * | 2013-11-18 | 2014-02-19 | 合肥美的电冰箱有限公司 | Refrigeration equipment and power source used for control system of refrigeration equipment |
| CN104038287A (en) * | 2014-04-09 | 2014-09-10 | 国家电网公司 | Ultra-long-spaced OPGW (Optical Fiber Composite Overhead Ground Wire) optical fiber communication system capable of obtaining energy on site and implementation method thereof |
| CN104769447A (en) * | 2012-09-06 | 2015-07-08 | 阿尔斯通技术有限公司 | Electrode line monitoring unit |
| CN105634147A (en) * | 2016-01-20 | 2016-06-01 | 长沙群瑞电子科技有限公司 | High-voltage bus power taking and storing device |
-
2008
- 2008-07-30 CN CNU2008200297982U patent/CN201237629Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735988A (en) * | 2011-04-06 | 2012-10-17 | 戚宇林 | Distribution network single-phase ground fault positioning method |
| CN102590574A (en) * | 2012-03-14 | 2012-07-18 | 昆明迪森电气有限公司 | Digital current transformer based on induction power supply and monitoring method for digital current transformer |
| CN102590574B (en) * | 2012-03-14 | 2015-12-30 | 昆明迪森电气有限公司 | Based on digital current mutual inductor and the monitoring method thereof of inductive power supply |
| CN104769447A (en) * | 2012-09-06 | 2015-07-08 | 阿尔斯通技术有限公司 | Electrode line monitoring unit |
| CN103595269A (en) * | 2013-11-18 | 2014-02-19 | 合肥美的电冰箱有限公司 | Refrigeration equipment and power source used for control system of refrigeration equipment |
| CN104038287A (en) * | 2014-04-09 | 2014-09-10 | 国家电网公司 | Ultra-long-spaced OPGW (Optical Fiber Composite Overhead Ground Wire) optical fiber communication system capable of obtaining energy on site and implementation method thereof |
| CN105634147A (en) * | 2016-01-20 | 2016-06-01 | 长沙群瑞电子科技有限公司 | High-voltage bus power taking and storing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090513 Termination date: 20100730 |