CN103323706A - Remote measurement and control method of high-frequency channel under condition of large operation mode - Google Patents
Remote measurement and control method of high-frequency channel under condition of large operation mode Download PDFInfo
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- CN103323706A CN103323706A CN2013102173227A CN201310217322A CN103323706A CN 103323706 A CN103323706 A CN 103323706A CN 2013102173227 A CN2013102173227 A CN 2013102173227A CN 201310217322 A CN201310217322 A CN 201310217322A CN 103323706 A CN103323706 A CN 103323706A
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Abstract
The invention discloses a remote measurement and control method of a high-frequency channel under the condition of a large operation mode. The remote measurement and control method of the high-frequency channel under the condition of the large operation mode is characterized by comprising the following steps of starting channel switching in a remote mode, directly taking and receiving a signal from a transceiver, sending the signal from a hard contact to a measurement and control cabinet, transmitting the signal to a background and a scheduling monitoring center through a remote-action system, and simultaneously uploading a '3db warning signal' of a protective device to the background and the scheduling monitoring center through a protection information sub-station. Test results show that the remote measurement and control method of the high-frequency channel under the condition of the large operation mode is safe, potential hazards influencing safe operation of equipment do not exist, and the reliability of each test result which is fed back is guaranteed. The remote measurement and control method of the high-frequency channel under the condition of the large operation mode can closely combined with the work system which is used now. The operation method is simple, each test result is intuitive and rapid in obtaining, available resources are fully utilized, materials are saved, and related technical transformation investment is reduced.
Description
Technical field:
The invention belongs to a kind of method of relay protection and the remote testing of hf channel safe condition control; refer more particularly to the method for the hf channel remote measurement and control under a kind of large method of operation; normal operation for the protection hf channel; correct operation to route protection is most important; when the passage attenuation is excessive; passage is obstructed, can't correctly exchange the both sides protection information, causes the route protection incorrect operation.
Background technology:
In the hf channel operational process, it is that the every end of the operator on duty of transformer station at passage two ends should be tested 1 time every day separately that operations staff's tour is required.Under the concentrator station operational mode, particularly under the large method of operation, at unattended operation transformer station, for this time operation may need to drive tens kilometers even up to a hundred kilometers to operate to substation field, can cause like this manpower financial capacity's significant wastage, also increase simultaneously operations staff's labour intensity, reduced efficiency.So field conduct is inconvenient, efficient is not high.
Summary of the invention:
For achieving the above object, the technical solution used in the present invention is:
Hf channel Methods of Remote Monitoring under the large method of operation; it is characterized in that: the remote starter Channel Exchange; directly get letter from transceiver and leave hard contact to the observing and controlling cabinet; then be sent to backstage and dispatch center by telecontrol system; " 3db alarm " signal with protective device passes through the protection information substation simultaneously, uploads to backstage and dispatch center.
The present invention uses the port of automated system to realize operated from a distance test, and the Channel Test result can be turned back to the backstage and carry out analyzing and processing, and test is finished and can be carried out the involution operation simultaneously, makes equipment return to the initial launch state.
The present invention is by test, and there is not the potential risk that affects equipment safety operation in method safety, the reliability of warranty test return results.With the closely combination of work system of present use, method of operating is simple, and test findings is intuitively quick.Take full advantage of existing resource, economical with materials reduces the relevant technological transformation fund that drops into.
Description of drawings:
Accompanying drawing 1 is 901 protection remote channel test loop figure.
Accompanying drawing 2 is 901 protection remote channel test involution loop diagrams.
Accompanying drawing 3 is 902 protection remote channel test loop figure.
Accompanying drawing 4 is 902 protection remote channel test involution loop diagrams.
Embodiment:
The invention will be further described below in conjunction with drawings and Examples.
Take RCS901+LFX-912 and RCS-902+LFX-912 as example: LFX-912 type transceiver adopts single-frequency carrier frequency direct keying signal modulation system, and is the same with the blocking protection transceiver of routine, when normal, do not transmit any signal in the passage; During electric system outlet fault, send starting here or stop letter signal by protective device.The receiving frequency of device is identical with transmission frequency, but internal loopback.Because during normal operation; when cooperating with RCS-900 series protective device; the running-up test logic of LFX-912 is inoperative; so adopting the Channel Test loop of protective device carries out; directly get letter from transceiver and leave hard contact to the observing and controlling cabinet; then be sent to backstage and dispatch center by telecontrol system, " 3db alarm " signal with protective device passes through the protection information substation simultaneously, uploads to backstage and dispatch center.
A line in the above-mentioned figure represents the distribution from device to terminal row, and the B line represents cable core for subsequent use, a termination protection screen, another termination observing and controlling screen.Wherein, each simulation contact and pressing plate are named respectively according to actual name.
After wiring is finished background data base is configured, at the background monitoring machine simulation contact among above several figure is defined as test button and involution button, the form of test return results with the photon board placed under the action button.On the backstage or dispatch center one key click and can realize the remote channel test, test findings data upload fast and reliable can also be with the transceiver involution to original state after experiment finishes." device action " received by analysis, " device is unusual " and signals such as " 3db alarms ", fault can be divided into the passageway machining equipment failure such as transceiver hardware fault, filter joint and weather conditions and cause the passage attenuation to increase three kinds of situations, realize the monitoring to running status.Change the situation that can only carry out a test and operate the carrier current protection passage every day because needing local operation in the past; can be divided into several periods tests the passage situation at any time; grasp the passage operation conditions, thereby realized the round-the-clock monitoring to carrier current protection Channel Test process.
Claims (2)
1. the hf channel Methods of Remote Monitoring under the large method of operation; it is characterized in that: the remote starter Channel Exchange; directly get letter from transceiver and leave hard contact to the observing and controlling cabinet; then be sent to backstage and dispatch center by telecontrol system; " 3db alarm " signal with protective device passes through the protection information substation simultaneously, uploads to backstage and dispatch center.
2. the hf channel Methods of Remote Monitoring under the large method of operation according to claim 1, that the port of using automated system is realized the operated from a distance test, and the Channel Test result can be turned back to the backstage and carry out analyzing and processing, test is finished and can be carried out the involution operation simultaneously, makes equipment return to the initial launch state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102173227A CN103323706A (en) | 2013-06-04 | 2013-06-04 | Remote measurement and control method of high-frequency channel under condition of large operation mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013102173227A CN103323706A (en) | 2013-06-04 | 2013-06-04 | Remote measurement and control method of high-frequency channel under condition of large operation mode |
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| CN103323706A true CN103323706A (en) | 2013-09-25 |
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| CN2013102173227A Pending CN103323706A (en) | 2013-06-04 | 2013-06-04 | Remote measurement and control method of high-frequency channel under condition of large operation mode |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605011A (en) * | 2013-10-22 | 2014-02-26 | 河南省电力公司商丘供电公司 | Method for realizing high frequency channel test and signal reset |
| CN103743967A (en) * | 2013-12-13 | 2014-04-23 | 国家电网公司 | Remote test system and method for substation high frequency protection channel state |
Citations (4)
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| CN101424721A (en) * | 2008-11-28 | 2009-05-06 | 江苏省电力公司南京供电公司 | Telemetry link on-line detecting system of scheduling automated system |
| CN202600072U (en) * | 2012-05-07 | 2012-12-12 | 宁波电业局 | High frequency channel exchange test system for high frequency protection apparatus |
| CN102830322A (en) * | 2012-08-08 | 2012-12-19 | 重庆市电力公司万州供电局 | Voltage relay based bus grounding alarm device and alarm method thereof |
| CN103036625A (en) * | 2012-12-07 | 2013-04-10 | 辽宁省电力有限公司营口供电公司 | Design method of detecting system for telecontrol remote terminal unit (RTU) and information channel |
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2013
- 2013-06-04 CN CN2013102173227A patent/CN103323706A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101424721A (en) * | 2008-11-28 | 2009-05-06 | 江苏省电力公司南京供电公司 | Telemetry link on-line detecting system of scheduling automated system |
| CN202600072U (en) * | 2012-05-07 | 2012-12-12 | 宁波电业局 | High frequency channel exchange test system for high frequency protection apparatus |
| CN102830322A (en) * | 2012-08-08 | 2012-12-19 | 重庆市电力公司万州供电局 | Voltage relay based bus grounding alarm device and alarm method thereof |
| CN103036625A (en) * | 2012-12-07 | 2013-04-10 | 辽宁省电力有限公司营口供电公司 | Design method of detecting system for telecontrol remote terminal unit (RTU) and information channel |
Non-Patent Citations (1)
| Title |
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| 李华丽: "220kV高频线路通道远程试验方法的研究", 《中国电力教育》, no. 2, 31 December 2012 (2012-12-31), pages 307 - 308 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103605011A (en) * | 2013-10-22 | 2014-02-26 | 河南省电力公司商丘供电公司 | Method for realizing high frequency channel test and signal reset |
| CN103743967A (en) * | 2013-12-13 | 2014-04-23 | 国家电网公司 | Remote test system and method for substation high frequency protection channel state |
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Address after: 236000 No. 30 Ying Ying South Road, Anhui, Fuyang Applicant after: FUYANG POWER SUPPLY COMPANY, STATE GRID ANHUI ELECTRIC POWER COMPANY Address before: 236000 No. 30 Ying Ying South Road, Anhui, Fuyang Applicant before: Anhui Electric Power Corporation Fuyang Power Supply Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: ANHUI POWER COMPANY FUYANG ELECTRIC POWER SUPPLY COMPANY TO: FUYANG POWERSUPPLY COMPANY STATE GRID ANHUI ELECTRIC POWER CO., LTD. |
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Application publication date: 20130925 |