CN203479951U - Channel switching testing device - Google Patents
Channel switching testing device Download PDFInfo
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- CN203479951U CN203479951U CN201320615209.XU CN201320615209U CN203479951U CN 203479951 U CN203479951 U CN 203479951U CN 201320615209 U CN201320615209 U CN 201320615209U CN 203479951 U CN203479951 U CN 203479951U
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Abstract
The utility model provides a channel switching testing device, which is connected with a communication line between a station terminal and a main station. The channel switching testing device comprises a line change-over switch, which comprises at least eight pairs of contacts. Each pair of the contacts comprises a contact connected with the station terminal and a contact connected with the main station. The eight pairs of contacts can be divide into a first group and a second group, each of which comprises four pairs of contacts, and can be used to for a normal operation line between the station terminal and the main station, when the four pairs of contacts of the first group are connected with each other, and the four pairs of contacts of the second group are disconnected from each other; and can be used to form a respective self-loop lines of the station terminal and the main station, when the four pairs of contacts of the second group are connected with each other, and the four pairs of contacts of the first group are disconnected from each other. The line change-over switch can be switched between the normal operation line and the respective self-loop lines. The channel switching testing device is advantageous in that the conventional way of realizing the self-loop lines by disconnecting the channel wiring temporarily can be improved, and then the operator can determine the fault reasons in advance, and therefore the workflow can be simplified.
Description
Technical field
The utility model relates to a kind of power circuit and safeguards pick-up unit, relates in particular to a kind of passage running status that can automatically switch, and has the passage switch test device of lane testing function.
Background technology
At present; Telecontrol Systems of Power Network generally includes: the end telemechanical apparatus of standing-end modulator-demodular unit-audio frequency four lines of standing-end communicator-communication port-main website telemechanical apparatus of standing; wherein with audio frequency Si Xianwei circle; the end of standing is divided by protection personnel and is responsible for maintenance, and stand end communicator and communication port are responsible for maintenance by communication speciality.
Fig. 1 is the channel wiring schematic diagram of prior art; Fig. 2 is the wiring schematic diagram after the passage of prior art encircles certainly.As shown in Figure 1, after communication disruption, first by operations staff, to scene, being restarted station end telemechanical apparatus, if communication still can not recover, the notice protection professional processing of showing up: as shown in Figure 2, the partly self-loop links separately of end Fen He main website of standing.Then contact main station judging trouble spot scope, if faulty equipment is in protection professional compass of competency, by protection professional, process defect; If faulty equipment is in communication speciality compass of competency, by the communication speciality personnel processing defect of arriving at a station.Owing to being subject to the restriction of professional skill and department's duty and authority, operations staff can not realize passage from ring, therefore can not prejudge failure cause by disconnecting tone frequency channel wire.
There is following some deficiency in current defect processing process: 1,, owing to can not prejudging failure cause, easily cause personnel's mismate, waste of human resource, for example, if communication speciality class fault, protection professional can not participate in Failure elimination; 2, owing to arriving transformer station, need certain range of driving, if can not notify corresponding professional the processing defect of arriving at a station the very first time, can cause communication interruption time long, affect telecontrol system communication; 3, disconnect station internal wiring temporarily easily cause mis-wired, be unfavorable for electric power netting safe running.
So, be badly in need of a kind of device that can allow operations staff prejudge failure cause, thereby notify in time corresponding professional the maintenance of showing up.
Utility model content
In view of the above-mentioned problems in the prior art, technical problem to be solved in the utility model is the fault zone that how to detect in advance power circuit, the maintenance thereby notice relevant speciality personnel show up.
In order to solve the problems of the technologies described above, the utility model provides a kind of passage switch test device, be connected in the communication line between Zhan Duanhe main website, described passage switch test device comprises line conversion switch, described line conversion switch at least comprises eight docking points, every docking point comprises the contact that is connected to described station end and the contact that is connected to described main website, described eight pairs of nodes are divided into first group of four docking point and second group of four docking point, and be connected to the normal operation wiring being formed between described Zhan Duanhe main website when every pair of mutual connection of first group of four docking point and second group of four docking point disconnect, and when every pair of mutual connection of second group of four docking point and first group of four docking point disconnect, form end, described station Fen He main website part separately from articulating line, described line conversion switch is configured at described normal operation wiring and describedly between articulating line, switches.
As preferably, also comprise voltage table change-over switch and the voltage table being connected with voltage table change-over switch, described voltage table change-over switch at least comprises four docking points, every docking point comprises the contact that is connected to described voltage table and the contact that is connected to described communication line, described four pairs of nodes are divided into first group of two docking point and second group of two docking point, and be connected to and when every pair of mutual connection of first group of two docking point and second group of two docking point disconnect, realize the voltage detecting to the collection of letters circuit in described communication line, and when disconnecting, every pair of mutual connection of second group of two docking point and first group of two docking point realize the voltage detecting to the transmit line in described communication line.
As preferably, described line conversion switch also comprises two other docking points, run indicator, certainly encircles pilot lamp, and be connected to: when described eight docking points are switched to described normal operation wiring, a docking point mutual connection in described two docking points and another docking point disconnect, and make run indicator connect and light; And being switched to describedly during from articulating line when described eight docking points, described another docking point mutual connection in described two docking points and a described docking point disconnect, and make to connect and light from encircling pilot lamp.
As preferably, also comprise and receive voltage tester button and generating pressure testing button, be connected to collection of letters voltage detecting loop and post a letter in voltage detecting loop, for controlling respectively the conducting in short-term in these two loops.
As preferably, described line conversion switch, voltage table change-over switch, voltage table are arranged in same panel.
As preferably, described line conversion switch, run indicator and be arranged in same panel from encircling pilot lamp.
As preferably, described panel is that insulating material is made.
As preferably, the model of described line conversion switch is LW12-16.
As preferably, the model of described voltage table change-over switch is LW8-10/3.D303.
Passage switch test application of installation of the present utility model is in transformer station's telecontrol system, can realize by operation switch the switching of passage " RUN " and " ring certainly " two states, improved traditional way that channel wiring is realized " ring certainly " that temporarily disconnects, make operations staff can prejudge failure cause, simplify workflow, saved the working time; The all right test channel voltage of the utility model, judges that according to channel voltage size whether passage is good.
Accompanying drawing explanation
Fig. 1 is the channel wiring schematic diagram of prior art;
Fig. 2 is the wiring schematic diagram after the passage of prior art encircles certainly;
Fig. 3 is the wiring diagram of the passage switch test device of the utility model embodiment mono-;
Fig. 4 is the wiring diagram of the passage switch test device of the utility model embodiment bis-.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
Embodiment mono-
Fig. 3 is the wiring diagram of the passage switch test device of the utility model embodiment mono-.As shown in Figure 3, the passage switch test device that the utility model embodiment mono-provides, is connected in the communication line between Zhan Duanhe main website, comprises line conversion switch 1, certainly encircles pilot lamp 2, run indicator 3 and power supply 4.Described line conversion switch 1 comprises ten docking points, wherein the every docking point of eight docking points (contact (1)～(16)) comprises the contact (for example contact (1)) that connects the end that arrives at a station and the contact (for example contact (2)) that is connected to described main website, the eight pairs of nodes are divided into first group of four docking point (contact (3) for example, (4)) and the second group of four docking point (contact (1) for example, (2)), and be connected to the normal operation wiring being formed between described Zhan Duanhe main website when every pair of mutual connection of first group of four docking point and second group of four docking point disconnect, and when every pair of mutual connection of second group of four docking point and first group of four docking point disconnect, form end, described station Fen He main website part separately from articulating line, line conversion switch 1 is configured at normal operation wiring and switches between articulating line.
Two other docking points shown in Fig. 3 (contact (17)～(20)) are respectively used to control from encircling pilot lamp 2 and run indicator 3, when above-mentioned eight docking points are switched to from articulating line, a docking point (17) in this two docking point, (18) mutual connection and another docking point (19), (20) disconnect, and make to connect and light from encircling pilot lamp 2; And when above-mentioned eight docking points are switched to normal operation wiring, contact (19), (20) mutual connection and contact (17), (18) disconnect, and make run indicator 3 connect and light.The communication line conducting situation complete list that table 1 is controlled for line conversion switch 1.
Duty when table 1 has clearly illustrated each contact at normal operation wiring and from articulating line.In conjunction with Fig. 3 and table 1, can find out, during normal operation wiring, the A that posts a letter, the B that posts a letter, collection of letters A, each communication line of collection of letters B are conducting state; And when from articulating line, post a letter A and collection of letters A connection that the end of standing is divided, collection of letters B and the B that posts a letter are communicated with; Post a letter A and the collection of letters A connection of main website part, collection of letters B and the B that posts a letter are communicated with, and have so realized ring certainly and have detected.
Table 1
Embodiment bis-
Fig. 4 is the wiring diagram of the passage switch test device of the utility model embodiment bis-.As shown in Figure 4, different from embodiment mono-, the passage switch test device that the utility model embodiment bis-provides, also comprises voltage table change-over switch 5, the voltage table 6 being connected with voltage table change-over switch 5.Described voltage table change-over switch 5 comprises four docking points (contact (21)～(28)), every docking point comprises the contact ((for example contact (23))) that is connected to voltage table 6 and the contact (for example contact (24)) that is connected to described communication line, these four pairs of nodes are divided into first group of two docking point (contact (23) for example, (24)) and the second group of two docking point (contact (27) for example, (28)), and be connected to and when every pair of mutual connection of first group of two docking point and second group of two docking point disconnect, realize the voltage detecting to the collection of letters circuit in described communication line, and when disconnecting, every pair of mutual connection of second group of two docking point and first group of two docking point realize the voltage detecting to the transmit line in described communication line.Wherein, in collection of letters voltage detecting loop, be also in series with and receive voltage tester button 7, in the voltage detecting loop of posting a letter, be in series with generating and press testing button 8, be respectively used to control the conducting in short-term in these two loops.
The loop conducting situation complete list that table 2 is controlled for voltage table change-over switch 5.Table 2 has clearly illustrated the duty of each contact when detecting collection of letters line voltage distribution and transmit line voltage.In conjunction with Fig. 4 and table 2, can find out, when normal operation wiring, when the A that posts a letter, the B that posts a letter, collection of letters A and each circuit of collection of letters B are conducting state, press in short-term and receive voltage tester button 7, can make described collection of letters voltage detecting loop conducting, detect the voltage of collection of letters circuit; Pressing in short-term generating and pressing testing button 8, the voltage detecting loop conducting of posting a letter described in can making, detects the voltage of transmit line.So, realized and only used a voltage table just can detect the function of collection of letters circuit and transmit line.After receipts voltage tester button 7 and generating press testing button 8 to upspring, voltage detecting loop and communication line disconnect, and avoid affecting passage and normally move.
Table 2
In described two embodiment, described line conversion switch 1, from encircling pilot lamp 2, run indicator 3, voltage table change-over switch 5, voltage table 6, receive voltage tester button 7 and generating and press testing button 8 to be all arranged on the panel that same insulating material makes, this insulating material is preferably the plastic material with some strength.The model of line conversion switch 1 is LW12-16.The model of voltage table change-over switch 5 is LW8-10/3.D303.From ring pilot lamp 2 and run indicator 3, be LED lamp, can be by dry cell power supply, rated voltage is 6.3V, if installed for protection screen of transformer substation cabinet, can select rated voltage is the LED lamp of direct current 220V.
Embodiment
1, physics voltage tester: determine transmission level according to station end modulator-demodular unit plug-in unit wire jumper, general device to test level 0～-40DB is adjustable, be generally assurance communication quality, suiting channel parameters coordinates, control level scope is at 0～-20DB, in the present embodiment, adopt test level to be-6DB, according to formula LP=20lg(Ux/Uo) (illustrate: LP represents voltage level, Ux test voltage, Uo reference voltage 0.775V) calculate, when-6DB level, lane testing voltage is between 360～400mv, passage can be judged normal, can provide basis for further carrying out the test of link layer stipulations.
2, link communication test: after definite physical link is normal, can tests problem identificatioin by message and be positioned at end, station and divide still main website part.Concrete example:
(1) for question and answer mode (POLLING stipulations), can main website be partly main test: take 101 stipulations as example:
The feature of 101 stipulations messages: question and answer mode transmission, ask and answer, pay no attention to and do not answer, main website is partly main, point to point operation, like this according to this feature, if there is communication disruption, operations staff is restarted station end telemechanical apparatus cannot recover to communicate by letter time, line conversion switch is switched to from ring status by normal operating condition, realize like this main website part by voice-frequency cable on realize physical self ring, whether the whole communication network to main website has problems by voice-frequency cable can to receive and dispatch message judgement according to main website like this.If because communication port or main website reason cause communication disruption, the message of main website is shown as so:
TX：1049014a16
TX：1049014a16
TX：1049014a16
Every the several seconds main website issue interrogation link message, and cannot receive returned packet, so should by the maintainer of main website coordinate communication speciality personnel inspection by voice-frequency cable the whole communication networks to main website, then deal with problems.
If because voice-frequency cable to station end goes wrong, communication port is good so, because main website part is in from ring status, main website part can realize internal loopback so, and the message that main website is received is shown as:
TX：1049014a16
RX：1049014a16
TX：1049014a16
RX：1049014a16
RX：1049014a16
TX：1049014a16
If this occurs, can judge that departures end telemechanical apparatus or station end modulator-demodular unit go wrong, and should notify protection professional to process to scene.
(2) for direct transmission, be stipulations, can with main website send to time etc. test packet mode carry out lane testing, take CDT stipulations as example:
The feature of CDT stipulations message: circulating, the end of standing is main, initiatively, send, point to point operation, according to this feature, if there is communication disruption, operations staff is restarted station end telemechanical apparatus cannot recover to communicate by letter time, also the line conversion switch to should passage can be switched to from ring status by normal operating condition, by the personnel of robotization main website people from main website for issue telemechanical to time etc. message, then according to main website packet sending and receiving situation, judge that voice-frequency cable to the communication network of main website goes wrong, the end of still standing is divided and is gone wrong, and concrete methods of realizing is as follows:
Main website part is at passage from ring in the situation that, people for issue to time order, if because of voice-frequency cable, the whole communication network to main website goes wrong really, main website message is shown as so:
TX：717A02010816
Only have and send message and cannot receive returned packet, should by the maintainer of main website coordinate communication speciality personnel inspection by voice-frequency cable the whole communication networks to main website, then deal with problems.
If because of for being gone wrong by voice-frequency cable to station end, communication port is good so, and because main website part is in from ring status, main website can realize internal loopback so, and the message that main website is received is shown as:
TX：717A02010816
RX：717A02010816
If this occurs, can judge that departures end telemechanical apparatus or station end modulator-demodular unit go wrong, and should notify protection professional to process to scene.
By install passage switch test device of the present utility model additional in power communication line; make operations staff can prejudge failure cause; reinform protection professional or communication speciality personnel to site disposal problem; also avoided disconnecting the operation of tone frequency channel wire simultaneously temporarily; simplified workflow; save the working time, greatly improved work efficiency.Statistics is used the time of the utility model pre-process and post-process communication disruption fault to be respectively: average approximately 253 minutes used times before using; average approximately 176 minutes used times after using; wherein protect the average used time of professional treatment fault by 95 minutes that within 153 minutes before using, are reduced to after use; visible effective saved time, man power and material, as Transporting Arrangement etc.And the utility model can greatly reduce passage post-set time, is convenient to Ji Kong, traffic department and monitors timely and accurately electric network information.
Above embodiment is only exemplary embodiment of the present utility model, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in protection domain of the present utility model.
Claims (9)
1. a passage switch test device, be connected in the communication line between Zhan Duanhe main website, it is characterized in that, described passage switch test device comprises line conversion switch, described line conversion switch at least comprises eight docking points, every docking point comprises the contact that is connected to described station end and the contact that is connected to described main website, described eight pairs of nodes are divided into first group of four docking point and second group of four docking point, and be connected to the normal operation wiring being formed between described Zhan Duanhe main website when every pair of mutual connection of first group of four docking point and second group of four docking point disconnect, and when every pair of mutual connection of second group of four docking point and first group of four docking point disconnect, form end, described station Fen He main website part separately from articulating line, described line conversion switch is configured at described normal operation wiring and describedly between articulating line, switches.
2. passage switch test device according to claim 1, it is characterized in that, also comprise voltage table change-over switch and the voltage table being connected with voltage table change-over switch, described voltage table change-over switch at least comprises four docking points, every docking point comprises the contact that is connected to described voltage table and the contact that is connected to described communication line, described four pairs of nodes are divided into first group of two docking point and second group of two docking point, and be connected to and when every pair of mutual connection of first group of two docking point and second group of two docking point disconnect, realize the voltage detecting to the collection of letters circuit in described communication line, and when disconnecting, every pair of mutual connection of second group of two docking point and first group of two docking point realize the voltage detecting to the transmit line in described communication line.
3. passage switch test device according to claim 1, it is characterized in that, described line conversion switch also comprises two other docking points, run indicator, certainly encircles pilot lamp, and be connected to: when described eight docking points are switched to described normal operation wiring, a docking point mutual connection in described two docking points and another docking point disconnect, and make run indicator connect and light; And being switched to describedly during from articulating line when described eight docking points, described another docking point mutual connection in described two docking points and a described docking point disconnect, and make to connect and light from encircling pilot lamp.
4. passage switch test device according to claim 2, it is characterized in that, also comprise and receive voltage tester button and generating pressure testing button, be connected to collection of letters voltage detecting loop and post a letter in voltage detecting loop, for controlling respectively the conducting in short-term in these two loops.
5. passage switch test device according to claim 2, is characterized in that, described line conversion switch, voltage table change-over switch, voltage table are arranged in same panel.
6. passage switch test device according to claim 3, is characterized in that, described line conversion switch, run indicator and be arranged in same panel from encircling pilot lamp.
7. according to the passage switch test device described in claim 5 or 6, it is characterized in that, described panel is that insulating material is made.
8. according to the passage switch test device described in claim 1～6 any one, it is characterized in that, the model of described line conversion switch is LW12-16.
9. passage switch test device according to claim 2, is characterized in that, the model of described voltage table change-over switch is LW8-10/3.D303.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615209.XU CN203479951U (en) | 2013-09-30 | 2013-09-30 | Channel switching testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615209.XU CN203479951U (en) | 2013-09-30 | 2013-09-30 | Channel switching testing device |
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| Publication Number | Publication Date |
|---|---|
| CN203479951U true CN203479951U (en) | 2014-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320615209.XU Expired - Lifetime CN203479951U (en) | 2013-09-30 | 2013-09-30 | Channel switching testing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901427A (en) * | 2015-06-29 | 2015-09-09 | 国家电网公司 | Substation communication system |
| CN105826118A (en) * | 2016-05-19 | 2016-08-03 | 国网新疆电力公司伊犁供电公司 | Telecontrol channel self-loop device |
| CN106997021A (en) * | 2017-05-16 | 2017-08-01 | 国网新疆电力公司昌吉供电公司 | Channel switching device |
| CN108809692A (en) * | 2018-04-23 | 2018-11-13 | 国网天津市电力公司电力科学研究院 | A kind of Fault Locating Method for 101 stipulations communication port of dispatching automation |
| CN113391098A (en) * | 2021-06-15 | 2021-09-14 | 贵州电网有限责任公司 | Optical difference protection coaxial cable channel control device and control method thereof |
-
2013
- 2013-09-30 CN CN201320615209.XU patent/CN203479951U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104901427A (en) * | 2015-06-29 | 2015-09-09 | 国家电网公司 | Substation communication system |
| CN105826118A (en) * | 2016-05-19 | 2016-08-03 | 国网新疆电力公司伊犁供电公司 | Telecontrol channel self-loop device |
| CN106997021A (en) * | 2017-05-16 | 2017-08-01 | 国网新疆电力公司昌吉供电公司 | Channel switching device |
| CN108809692A (en) * | 2018-04-23 | 2018-11-13 | 国网天津市电力公司电力科学研究院 | A kind of Fault Locating Method for 101 stipulations communication port of dispatching automation |
| CN113391098A (en) * | 2021-06-15 | 2021-09-14 | 贵州电网有限责任公司 | Optical difference protection coaxial cable channel control device and control method thereof |
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Granted publication date: 20140312 |