CN102680823A - High-frequency channel switching test system for high-frequency protection device - Google Patents
High-frequency channel switching test system for high-frequency protection device Download PDFInfo
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- CN102680823A CN102680823A CN2012101498015A CN201210149801A CN102680823A CN 102680823 A CN102680823 A CN 102680823A CN 2012101498015 A CN2012101498015 A CN 2012101498015A CN 201210149801 A CN201210149801 A CN 201210149801A CN 102680823 A CN102680823 A CN 102680823A
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Abstract
The invention discloses a high-frequency channel switching test system for a high-frequency protection device. The high-frequency channel switching test system comprises a start-up circuit connection line, a reset circuit connection line, remote control circuit contacts, a monitoring and controlling device, a device abnormal circuit contact and a control terminal, wherein the start-up circuit connection line is arranged between a wiring terminal of a common terminal and a signaling starting wiring terminal, the reset circuit connection line is arranged between the wiring terminal of the common terminal and a signal resetting wiring terminal, the start-up circuit connection line and the reset circuit connection line are respectively provided with the remote control circuit contact controlled by the monitoring and controlling device, the high-frequency protection device is connected with the monitoring and controlling device through the device abnormal circuit contact, the device abnormal circuit contact is communicated with the monitoring and controlling device when a high-frequency channel switching test for the high-frequency protection device fails during the process of the high-frequency channel switching test, and the monitoring and controlling device is remotely connected with the control terminal which is used for sending control commands to the monitoring and controlling device and receiving communicating signals of the device abnormal circuit contact. According to the high-frequency channel switching test system, the high-frequency channel switching test can be finished through the remote control commands of operating personnel, so that human and material resources are saved, and the working efficiency is also improved.
Description
Technical field
The present invention relates to the hf channel exchange test system of power equipment detection range, particularly a kind of carrier current protection.
Background technology
The circuit carrier current protection is widely used in the modern power network protection; Because closed-end hf channel wherein only just passes through high-frequency current when breaking down; So under the situation of normal operation; Can't keep watch on the on off operating mode of hf channel, the hidden danger that this uncertainty makes malfunction when there is external area error in carrier current protection.
Can find timely when breaking down, in the prior art, need the tour personnel that the hf channel of carrier current protection is carried out regular exchange test in order to ensure carrier current protection.
Concrete; As shown in Figure 1, in the prior art, the circuit of hf channel exchange test comprises: the connection terminal that has the common port 11 of DC Forward Current; Post a letter 12 connection terminal of the startup of hf transceiver, the signal of hf transceiver 13 the connection terminal that resets.
At present, the basic functional principle of the Starting mode of hf channel exchange test is, after the tour personnel pressed lane testing button 14, the connection terminal through common port 11 conducted galvanic anode to the startup of hf transceiver 12 connection terminals of posting a letter; Hf transceiver begins to post a letter, and the hf channel exchange test begins.
Then, the tour personnel can judge the operation conditions of hf channel through the situation of lighting of observing signal lamp on the carrier current protection;
The hf channel exchange test finishes, and the work of confirming hf channel be normal after, the tour personnel press signal return button 15, with relevant information involution with carrier current protection, the normal operation of recovery carrier current protection.
Because in existing 220KV transformer station; Be typically provided with measure and control device, realized unmanned basically, so; Though administering and maintaining of other equipment all realized telemanagement; But, in order to carry out the hf channel exchange test of regular carrier current protection, also need make an inspection tour personnel every day independent to make an inspection tour each 220KV transformer station on-the-spot in order to carry out regular hf channel exchange test.
In sum, the shortcoming of prior art is, regular pass through manual work and reaches the spot and carry out the mode of hf channel exchange test, expended lot of manpower and material resources, also reduced work efficiency.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of hf channel exchange test system of carrier current protection, to realize the purpose of remote activation hf channel exchange test.
The summary of the invention of the embodiment of the invention is following:
A kind of hf channel exchange test system of carrier current protection comprises:
Be provided with the start-up circuit line between the connection terminal that the connection terminal of common port and startup are posted a letter;
Be provided with the reset circuit line between the connection terminal that the connection terminal of common port and signal reset;
Said start-up circuit line and said reset circuit line are respectively equipped with the remote control circuit contact by measure and control device control;
Said carrier current protection is connected with said measure and control device through the unusual circuit junction of device; The unusual circuit junction of said device is used for when the carrier current protection channel exchange test is failed, being communicated with said measure and control device;
With the long-range control terminal that is connected of said measure and control device, said control terminal is used for to said measure and control device transmitting control commands and the communications signals that receives the unusual circuit junction of said device.
Preferably, in embodiments of the present invention, also comprise: be used to monitor the frequency supervising device that signal lamp is looked on the carrier current protection;
Be provided with connection line between said video monitoring apparatus and the said control terminal, be used for to said control terminal transmit image data.
Preferably, in embodiments of the present invention, said control terminal is provided with the operation interface unit;
Said operation interface unit is used for to said remote control circuit contact transmitting control commands.
Preferably, in embodiments of the present invention, said control terminal is provided with the feedback interface unit;
Said operation interface unit is used to show the communications signals of the unusual circuit junction of said device.
Preferably, in embodiments of the present invention, said measure and control device is connected through Ethernet with said control terminal.
Preferably, in embodiments of the present invention, said measure and control device is connected through wireless network with said control terminal.
Preferably, in embodiments of the present invention, said measure and control device is connected through telecommunications network with said control terminal.
Can find out through technique scheme; In embodiments of the present invention; Between the connection terminal of posting a letter in the connection terminal and the startup of common port; And, be respectively equipped with circuit connection between the connection terminal that the connection terminal of common port and signal reset, and be equipped with the remote control circuit contact at each circuit connection; Then; Be connected with the remote control circuit contact through control terminal, like this, when measure and control device receives the control command from control terminal; Can start the hf channel test in long-range realization; And,, can obtain test findings through communications signals to the unusual circuit junction of control terminal feedback assembly.
Because in embodiments of the present invention; Can accomplish the hf channel test through the long-range control command of staff; And obtain test findings, accomplish hf channel and test so need not in prior art all will to carry out manual operations such every day through the scene that the tour personnel arrive changed electric field.So practiced thrift lot of manpower and material resources, but also improved work efficiency.
Description of drawings
Fig. 1 is the electrical block diagram of the system of hf channel exchange test described in the prior art;
Fig. 2 is the circuit system of hf channel exchange test described in an embodiment of the invention structural representation.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
In order to use manpower and material resources sparingly effectively, improved work efficiency, the embodiment of the invention provides a kind of hf channel exchange test system of carrier current protection, and is as shown in Figure 2, comprising:
The connection terminal of common port 21 and start is posted a letter and to be provided with start-up circuit line 31 between 22 connection terminal; The connection terminal of common port 21 and signal reset and are provided with reset circuit line 32 between 23 connection terminal; Start-up circuit line 31 is respectively equipped with the remote control circuit contact by measure and control device 35 controls with reset circuit line 32;
Carrier current protection is connected with measure and control device through the unusual circuit junction of device; In the hf channel exchange test process, when the carrier current protection channel exchange test is failed, install unusual circuit junction and be communicated with measure and control device;
With the long-range control terminal that is connected of measure and control device, control terminal is used for the communications signals to measure and control device transmitting control commands and the unusual circuit junction of receiving trap.
In order to realize long-range controlling, in the embodiment of the invention, be used for the manual hookup basis that the hf channel exchange test is carried out in manual operations original, added and be used for the long-range hookup that remote control carries out the hf channel exchange test; Concrete:
Similar with manual hookup, the connection terminal of the common port 21 through having DC Forward Current is connected with post a letter 22 connection terminal of the startup of hf transceiver, to constitute start-up circuit line 31; Also be provided with the remote control circuit contact in the start-up circuit line 31, here, can be with this remote control circuit contact called after first remote control circuit contact 34; Concrete; The first remote control circuit contact 34 can be arranged in the measure and control device 35, like this, receive control terminal control order after; Measure and control device 35 can be controlled the first remote control circuit contact, 34 closures, thereby plays the effect the same with supressing lane testing button 24.Like this, when the first remote control circuit contact 34 was closed, the connection terminal of common port 21 can conduct galvanic anode to the startup of hf transceiver 22 connection terminals of posting a letter, and at this moment, hf transceiver begins to post a letter, and the hf channel exchange test begins.
In addition, the embodiment of the invention is the connection terminal of the common port 21 through having DC Forward Current also, and the signal that connects hf transceiver 23 the connection terminal that resets is to constitute reset circuit line 32; Similar with start-up circuit line 31; Also be provided with the remote control circuit contact in the reset circuit line 32, here, can be with this remote control circuit contact called after second remote control circuit contact 33; The second remote control circuit contact 33 can be arranged in the measure and control device 35; Receive control terminal control order after, measure and control device 35 can be controlled the first remote control circuit contact, 34 closures, thereby plays the effect the same with supressing signal SR 25.Like this, when the second remote control circuit contact 33 is closed, can be with the relevant information involution of carrier current protection, thus the normal operation that recovers carrier current protection.
In the embodiment of the invention, in the carrier current protection, also include the unusual circuit junction of device, be used for when the hf channel exchange test is failed, being communicated with this circuit junction; Because the unusual circuit junction of device is connected with measure and control device, so at this moment, measure and control device can obtain the corresponding feedback signal when the hf channel exchange test is failed;
In order to realize Long-distance Control, in the embodiment of the invention, also be provided with control terminal; Because control terminal is connected with measure and control device is long-range, like this, the staff can transfer to measure and control device through the control command that control terminal generated, and starts the remote control circuit contact by measure and control device again, thereby has realized long-range completion hf channel exchange test.
In addition; Because control terminal is connected with measure and control device is long-range; So; Be used to reflect the device unusual circuit junction of hf channel exchange test result, can its communications signals be fed back on the control terminal through measure and control device, thereby can make the staff on long-range control terminal, can obtain the result of hf channel exchange test for fault.
In embodiments of the present invention, in order to obtain hf channel exchange test result more intuitively, can also be at the scene of transformer station; Aim at the position of signal lamp on the carrier current protection, be provided with video monitoring apparatus, specifically; Can be camera, between video monitoring apparatus and control terminal, be provided with and be used for to control terminal transmit image data connection line; Like this; When the staff when carrying out the hf channel exchange test, can observe the signal indication of signal lamp on the carrier current protection long-range intuitively, thereby whether the feedback signal that can the access control terminal be received is correct.
In practical application, what control terminal was concrete can accomplish to remote control circuit contact transmitting control commands through the operation interface unit; Through being provided with the operation interface unit, the staff only need press the feedback result that corresponding start button or SR can obtain the hf channel exchange test on the interface.Thereby simplified the operation easier of work, improved work efficiency.
In embodiments of the present invention, different according to measure and control device and control terminal present position, and the different considerations of laying cost and data security, the mode of communicating of measure and control device and control terminal can include multiple, and is concrete:
Can be one or more connected modes in connecting through Ethernet connection, wireless network connection or telecommunications network.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (7)
1. the hf channel exchange test system of a carrier current protection is characterized in that, comprising:
Be provided with the start-up circuit line between the connection terminal that the connection terminal of common port and startup are posted a letter;
Be provided with the reset circuit line between the connection terminal that the connection terminal of common port and signal reset;
Said start-up circuit line and said reset circuit line are respectively equipped with the remote control circuit contact by measure and control device control;
Said carrier current protection is connected with said measure and control device through the unusual circuit junction of device; The unusual circuit junction of said device is used for when the carrier current protection channel exchange test is failed, being communicated with said measure and control device;
With the long-range control terminal that is connected of said measure and control device, said control terminal is used for to said measure and control device transmitting control commands and the communications signals that receives the unusual circuit junction of said device.
2. according to the said hf channel exchange test of claim 1 system, it is characterized in that, also comprise: the video monitoring apparatus that is used to monitor signal lamp on the carrier current protection;
Be provided with connection line between said video monitoring apparatus and the said control terminal, be used for to said control terminal transmit image data.
3. according to the said hf channel exchange test of claim 2 system, it is characterized in that said control terminal is provided with the operation interface unit;
Said operation interface unit is used for to said remote control circuit contact transmitting control commands.
4. according to the said hf channel exchange test of claim 3 system, it is characterized in that said control terminal is provided with the feedback interface unit;
Said operation interface unit is used to show the communications signals of the unusual circuit junction of said device.
5. according to the said hf channel exchange test of claim 4 system, it is characterized in that said measure and control device is connected through Ethernet with said control terminal.
6. according to the said hf channel exchange test of claim 5 system, it is characterized in that said measure and control device is connected through wireless network with said control terminal.
7. according to the said hf channel exchange test of claim 6 system, it is characterized in that said measure and control device is connected through telecommunications network with said control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101498015A CN102680823A (en) | 2012-05-07 | 2012-05-07 | High-frequency channel switching test system for high-frequency protection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101498015A CN102680823A (en) | 2012-05-07 | 2012-05-07 | High-frequency channel switching test system for high-frequency protection device |
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| CN102680823A true CN102680823A (en) | 2012-09-19 |
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| CN2012101498015A Pending CN102680823A (en) | 2012-05-07 | 2012-05-07 | High-frequency channel switching test system for high-frequency protection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2014094428A1 (en) * | 2012-12-21 | 2014-06-26 | 华为技术有限公司 | Cell capacity analysis method, data analysis method and equipment for same |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU515204A1 (en) * | 1973-04-04 | 1976-05-25 | Device for remote start transmitter differential phase high frequency line protection | |
| US3963964A (en) * | 1975-02-07 | 1976-06-15 | Westinghouse Electric Corporation | Segregated phase comparison system |
| CN201789502U (en) * | 2010-08-19 | 2011-04-06 | 河南省电力公司郑州供电公司 | Power line high-frequency channel |
| CN202600072U (en) * | 2012-05-07 | 2012-12-12 | 宁波电业局 | High frequency channel exchange test system for high frequency protection apparatus |
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2012
- 2012-05-07 CN CN2012101498015A patent/CN102680823A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU515204A1 (en) * | 1973-04-04 | 1976-05-25 | Device for remote start transmitter differential phase high frequency line protection | |
| US3963964A (en) * | 1975-02-07 | 1976-06-15 | Westinghouse Electric Corporation | Segregated phase comparison system |
| CN201789502U (en) * | 2010-08-19 | 2011-04-06 | 河南省电力公司郑州供电公司 | Power line high-frequency channel |
| CN202600072U (en) * | 2012-05-07 | 2012-12-12 | 宁波电业局 | High frequency channel exchange test system for high frequency protection apparatus |
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| 余伟等: "线路高频保护远程高频通道交换试验方法", 《安徽电力》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014094428A1 (en) * | 2012-12-21 | 2014-06-26 | 华为技术有限公司 | Cell capacity analysis method, data analysis method and equipment for same |
| 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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Application publication date: 20120919 |