CN102868219A - Intelligent electric carrier classification locking device - Google Patents
Intelligent electric carrier classification locking device Download PDFInfo
- Publication number
- CN102868219A CN102868219A CN2012103216920A CN201210321692A CN102868219A CN 102868219 A CN102868219 A CN 102868219A CN 2012103216920 A CN2012103216920 A CN 2012103216920A CN 201210321692 A CN201210321692 A CN 201210321692A CN 102868219 A CN102868219 A CN 102868219A
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- intelligent electric
- power line
- capacitor
- signal
- electric wire
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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides an intelligent electric carrier classification locking device, which is characterized by comprising an electric wire coupler connected with a low-voltage electric wire, wherein an electric wire signal modulator-demodulator is connected with the electric wire coupler through a signal receiver and a signal emitter; and a digital signal interface is connected with the electric wire signal modulator-demodulator through a single chip microprocessor. With the adoption of the intelligent electric carrier classification locking device provided by the invention, the defects in the prior art can be overcome; a fault circuit and a non-fault circuit can be automatically judged; and a power supply of the fault circuit can be automatically switched off, and the fault circuit is locked, so that the occurrence of the large-area switched-off circuit caused by error operation of staff and the hidden dangers of directly causing personal security due to illegal operation can be avoided. Furthermore, the intelligent electric carrier classification locking device has no need of wiring; the cost is lowered; and the convenience in use is realized.
Description
Technical field
The present invention relates to a kind of Intelligent electric power carrier wave graded latch device, belong to electric power system resist technology field.
Background technology
At present, domestic underground power supply system adopts multistage system mostly, between the superior and the subordinate without blocking function, when subordinate overhauls, mostly by phone or the power failure of sending someone, the magnetic starter of subordinate particularly, because environment for use is abominable, fault is more, often someone's youngster's maintenance of going to uncap, the hot line job phenomenon occurs often, and this operation against rules directly jeopardizes life safety.
Outage is not uncapped, and serious potential safety hazard is arranged.Only locking load-side of the locking device power supply of switch door closure at ordinary times, and the side power supply of can't cutting off the electricity supply, exactly the mains side power supply is the place that causes that least the mine electrician notes, so charged uncapping arranged during the down-hole.The faults such as the ground connection that causes because of misoperation, short circuit can be detected by a plurality of higher levels, thereby the overstep tripping phenomenon can occur, and cause large-area power-cuts, have both affected production, bring unsafe factor to mine again.Up to the present, there is not any mechanical electric interlock in the wire connection cavity loam cake, and the prompting printed words of " first outage, then uncap " are only arranged, and can not stop fully to operate against regulations or misoperation.
The down-hole electric equipment is a lot, and monitoring point, locking point are also a lot, if all adopted line traffic control, cable certainly will increase, and the cable utilance is low.If use wireless remote control, more be not suitable with subsurface environment.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of energy automatic discrimination faulty line and non-fault line, automatically disengagement failure line power and faulty line implemented locking is stopped to cause the generation of large area blackout and because operating the Intelligent electric power carrier wave graded latch device of the hidden danger that directly jeopardizes life safety against regulations because of personnel's misoperation.
In order to solve the problems of the technologies described above, technical scheme of the present invention provides a kind of Intelligent electric power carrier wave graded latch device, it is characterized in that: comprise the power line coupler that is connected with low-voltage power line, the power line signal modulator-demodulator is connected with power line coupler with signal projector by signal receiver, and digital signal interface is connected with the power line signal modulator-demodulator by single-chip microcomputer.
Preferably, described power line coupler comprises that an end of the first capacitor C 1, the first capacitor C 1 connects live wire, and the other end of the first capacitor C 1 connects an end of the first inductance L 1, an end of a winding of other end connection transformer of the first inductance L 1; The other end of a winding of transformer connects an end of the second inductance L 2, and the other end of the second inductance L 2 connects an end of the second capacitor C 2, and the other end of the second capacitor C 2 connects ground wire; The two ends of the 3rd capacitor C 3 are the two ends of connection transformer secondary winding respectively.
The existing higher carrier signal loading efficiency of a kind of Intelligent electric power carrier wave graded latch device provided by the invention can fully be isolated again the power frequency component of power network.Need not wiring, Intelligent electric power carrier wave graded latch device is placed in the switch explosion-proof chamber, power line coupler is received on the low-voltage power line got final product.Have following beneficial effect:
(1) stopped directly to jeopardize because of the artificial charged this operation against rules of uncapping the hidden danger of life safety;
(2) stopped to cause because of the overstep tripping that the faults such as ground connection that misoperation causes, short circuit cause the generation of large area blackout;
(3) overcome many because of underground equipment, the monitoring point is many, locking point is also many, has line traffic control will cause control cables numerous, and the low shortcoming of cable utilance;
(4) stopped to uncap the potential safety hazard that the side of can't cutting off the electricity supply power supply causes because not cutting off the power supply;
Device provided by the invention has overcome the deficiencies in the prior art, energy automatic discrimination faulty line and non-fault line, automatically disengagement failure line power and faulty line implemented locking, stop to cause the generation of large area blackout and because operating the hidden danger that directly jeopardizes life safety against regulations because of personnel's misoperation, and need not wiring, reduced cost, the convenient use.
Description of drawings
Fig. 1 is a kind of Intelligent electric power carrier wave graded latch device circuit schematic diagram provided by the invention;
Fig. 2 is power line coupler circuit diagram in the present embodiment.
Embodiment
For the present invention is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.
Fig. 1 is a kind of Intelligent electric power carrier wave graded latch device circuit schematic diagram provided by the invention, described a kind of Intelligent electric power carrier wave graded latch device comprises the power line coupler that is connected with low-voltage power line, the power line signal modulator-demodulator is connected with power line coupler with signal projector by signal receiver, and digital signal interface is connected with the power line signal modulator-demodulator by single-chip microcomputer.
The signal of low-voltage power line at first is coupled by power line coupler, then after processing by signal receiver, send to the power line signal modulator-demodulator signal is further processed, signal is processed and sent signal to digital signal interface by single-chip microcomputer at last.The signal that single-chip microcomputer sends need to be processed by the power line signal modulator-demodulator equally, through signal projector, is coupled on the low-voltage power line by power line coupler.
Power line signal modulator-demodulator, signal receiver, signal projector, single-chip microcomputer and digital signal interface are the outsourcing product." the compound coupling technique " that power line coupler adopts " electromagnetic coupled " to combine with " resistance-capacitance coupling ", in conjunction with Fig. 2, power line coupler comprises the first capacitor C 1, one end of the first capacitor C 1 connects live wire, the other end of the first capacitor C 1 connects an end of the first inductance L 1, an end of a winding of other end connection transformer of the first inductance L 1; The other end of a winding of transformer connects an end of the second inductance L 2, and the other end of the second inductance L 2 connects an end of the first capacitor C 1, and the other end of the second capacitor C 2 connects ground wire; The two ends of the 3rd capacitor C 3 are the two ends of connection transformer secondary winding respectively.
Consider the power problems of digital signal interface, evidence, the existing higher carrier signal loading efficiency of Intelligent electric power carrier wave graded latch device, the power frequency component that can fully isolate again power network 50Hz.Need not wiring, Intelligent electric power carrier wave graded latch device is placed in the switch explosion-proof chamber, power line coupler is received on the low-voltage power line got final product.Intelligent electric power carrier wave graded latch device is provided with the RS-485 serial communication interface of standard; can be directly there be the control appliance of communication interface to link to each other with the PLC (power carrier module) of any DB9 of having interface, computer or other; if connect the serial ports of the feeding switch with microcomputer protection system, can also show the information such as address that the locking order sends, time.
A kind of Intelligent electric power carrier wave graded latch device provided by the invention is specially adapted to the power supply place of electric power system under the coal mine, can automatic discrimination faulty line and non-fault line, and automatic disengagement failure line power and faulty line implemented locking.
Claims (2)
1. Intelligent electric power carrier wave graded latch device, it is characterized in that: comprise the power line coupler that is connected with low-voltage power line, the power line signal modulator-demodulator is connected with power line coupler with signal projector by signal receiver, and digital signal interface is connected with the power line signal modulator-demodulator by single-chip microcomputer.
2. a kind of Intelligent electric power carrier wave graded latch device as claimed in claim 1, it is characterized in that: described power line coupler comprises the first capacitor C 1, one end of the first capacitor C 1 connects live wire, the other end of the first capacitor C 1 connects an end of the first inductance L 1, an end of a winding of other end connection transformer of the first inductance L 1; The other end of a winding of transformer connects an end of the second inductance L 2, and the other end of the second inductance L 2 connects an end of the second capacitor C 2, and the other end of the second capacitor C 2 connects ground wire; The two ends of the 3rd capacitor C 3 are the two ends of connection transformer secondary winding respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103216920A CN102868219A (en) | 2012-09-03 | 2012-09-03 | Intelligent electric carrier classification locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103216920A CN102868219A (en) | 2012-09-03 | 2012-09-03 | Intelligent electric carrier classification locking device |
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| Publication Number | Publication Date |
|---|---|
| CN102868219A true CN102868219A (en) | 2013-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012103216920A Pending CN102868219A (en) | 2012-09-03 | 2012-09-03 | Intelligent electric carrier classification locking device |
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| CN (1) | CN102868219A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105425110A (en) * | 2015-12-14 | 2016-03-23 | 许昌许继昌南通信设备有限公司 | Quick override trip fault positioning method based on power line carrier technology |
| CN105551227A (en) * | 2015-12-10 | 2016-05-04 | 国网四川省电力公司电力科学研究院 | Waveform signal source directly injected into power line |
| CN105655990A (en) * | 2014-10-23 | 2016-06-08 | 国家电网公司 | Transmission line safety warning device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050078803A1 (en) * | 2003-09-19 | 2005-04-14 | Toshiyuki Wakisaka | Multicarrier communication method and system, and communication apparatus incorporated therein |
| CN201063934Y (en) * | 2007-06-29 | 2008-05-21 | 东莞市友美电源设备有限公司 | Power line communication based road lamp electricity-saving control system |
| CN202026514U (en) * | 2011-04-08 | 2011-11-02 | 西安电子科技大学 | Electric carrier wave intelligent lighting device |
| CN202872463U (en) * | 2012-09-03 | 2013-04-10 | 山西潞安环保能源开发股份有限公司 | Intelligentized electric-power carrier-wave classification closing apparatus |
-
2012
- 2012-09-03 CN CN2012103216920A patent/CN102868219A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050078803A1 (en) * | 2003-09-19 | 2005-04-14 | Toshiyuki Wakisaka | Multicarrier communication method and system, and communication apparatus incorporated therein |
| CN201063934Y (en) * | 2007-06-29 | 2008-05-21 | 东莞市友美电源设备有限公司 | Power line communication based road lamp electricity-saving control system |
| CN202026514U (en) * | 2011-04-08 | 2011-11-02 | 西安电子科技大学 | Electric carrier wave intelligent lighting device |
| CN202872463U (en) * | 2012-09-03 | 2013-04-10 | 山西潞安环保能源开发股份有限公司 | Intelligentized electric-power carrier-wave classification closing apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 孟庆海: "多功能电机综合保护器", 《煤矿安全》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655990A (en) * | 2014-10-23 | 2016-06-08 | 国家电网公司 | Transmission line safety warning device |
| CN105551227A (en) * | 2015-12-10 | 2016-05-04 | 国网四川省电力公司电力科学研究院 | Waveform signal source directly injected into power line |
| CN105425110A (en) * | 2015-12-14 | 2016-03-23 | 许昌许继昌南通信设备有限公司 | Quick override trip fault positioning method based on power line carrier technology |
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Application publication date: 20130109 |