CN203800704U - Remote monitoring device for state of air switch - Google Patents
Remote monitoring device for state of air switch Download PDFInfo
- Publication number
- CN203800704U CN203800704U CN201420136539.5U CN201420136539U CN203800704U CN 203800704 U CN203800704 U CN 203800704U CN 201420136539 U CN201420136539 U CN 201420136539U CN 203800704 U CN203800704 U CN 203800704U
- Authority
- CN
- China
- Prior art keywords
- optocoupler
- air switch
- output
- input
- remote monitoring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 11
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 230000001681 protective effect Effects 0.000 abstract 2
- 230000005404 monopole Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 230000005622 photoelectricity Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model relates to a remote monitoring device for the state of an air switch. The device comprises a current-limiting resistor, an optocoupler and a circuit board. The current-limiting resistor is connected in series with the input pin of the optocoupler. The output end of the optocoupler is provided with two output terminals. The input end of the optocoupler is provided with two input terminals. The input terminals are connected with the air switch through leads. The output terminals are functioning as electrical independent contacts during the automatic monitoring process. According to the technical scheme of the utility model, the current state of the air switch can be acquired by the input end of the optocoupler, and then the actual position of the air switch can be judged. The output end of the optocoupler sends an on-off output to protective automation equipment and the on-off output is transmitted to a remote workstation by means of the protective automation equipment. Therefore, the actual position of each air switch is monitored in real time by the remote workstation. Based on the on-off output function of the optocoupler, the actual position of the air switch can be judged by means of a simple circuit. Due to the adoption of different wiring modes, the device provides the accurate position information for the remote monitoring process of the states of mono-pole air switches, mono-phase air switches and three-phase air switches.
Description
Technical field
The utility model relates to power automation remote signalling fields of measurement, especially relates to a kind of air switch status remote monitoring device.
Background technology
At present, known air switch status remote monitoring device is that a docking point by being connected with air switch operation part is realized.Because shell and the intermediate isolating part of air switch all make made of plastic, in the time that air switch institute on-load is larger, can cause air switch overheated, cause parts of plastics to expand, because the contact of status remote monitoring moves by machine driving, in the time that air switch is overheated, often there is the phenomenon of misoperation in the contact of status remote monitoring, affected the accuracy of automation far-end monitoring.On-the-spot urgent need can highly reliable high accuracy air switch status remote monitoring device.
Utility model content
In order to overcome the deficiency of existing air switch status remote monitoring device, the utility model provides the air switch status remote monitoring device that a kind of safe accuracy is high, it is made up of current-limiting resistance, optocoupler, binding post and circuit board, utilize optocoupler in the time that input side has electric current input, the feature that can provide switching value to change at outlet side, input is connected on the terminal of air switch, change along with cut-offfing of air switch is closed, the variation of the output switching value of optocoupler judges the actual change state of air switch.Reasonable in design, simple in structure, performance factor 100%, fast wiring, isolates by photoelectricity, can not impact to automation equipment long service life.
The utility model solves the technical scheme that its technical problem adopts:
Air switch status remote monitoring device, include current-limiting resistance, optocoupler and circuit board, the input pin of optocoupler is received in current-limiting resistance series connection, optocoupler output is provided with two lead-out terminals, optocoupler input is provided with two input terminals, input terminal is received on air switch by lead-in wire, and lead-out terminal provides without source contact for automatically-monitored.
The beneficial effect that the utility model has is:
1, the current-limiting resistance of the utility model air switch status remote monitoring device is connected in series with the input of optocoupler, receive on the terminal of air switch, gather the electric parameters of air switch, the output of optocoupler provides without source contact for automation remote signalling, the electric parameters of reflection air switch changes, this reasonable in design, simple in structure, performance factor 100%, fast wiring, isolate by photoelectricity, can not impact to automation equipment long service life.
2, the utility model is through the input of current-limiting resistance series connection optocoupler; receive on the binding post of air switch; input by optocoupler gather air switch current status; judge the physical location of air switch; provide switching value with the output of optocoupler for protection automation equipment; be transferred to remote workstation by protection automation equipment, so that the remote workstation physical location of the each air switch of monitoring in real time.Solve air switch state misoperation in the past, affected the problem of remote monitoring.
3, the utility model utilizes the switch output function of optocoupler, judge the physical location of air switch by ball bearing made using, different mode of connection of the present utility model, can realize to one pole sky open, single-phase sky opens and opens status remote monitoring with three-phase sky accurate location information is provided.Use during to on-the-spot air switch status monitoring in transformer station (or power plant) relay automation, can effectively prevent mistake photos and sending messages, improve the accuracy rate of information.Meet the requirement of intelligent grid, not affected by extraneous clutter, there is no machine driving, long service life.Solve the problem of air switch state wrong report in the past.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is principle schematic of the present utility model;
Fig. 2 is that the utility model is arranged on the schematic diagram that one pole sky is opened;
Fig. 3 is that the utility model is arranged on the schematic diagram that single-phase sky is opened;
Fig. 4 is that the utility model is arranged on the schematic diagram that three-phase sky is opened.
1. circuit boards in figure, 2. current-limiting resistance, 3. optocoupler, 4. lead-out terminal, 5. lead-out terminal, 6. input terminal, 7. input terminal.
Embodiment
In Fig. 1, each parts are installed on circuit board 1, the input pin of optocoupler 3 is received in current-limiting resistance 2 series connection, and optocoupler 3 outputs are provided with lead-out terminal 4 and lead-out terminal 5, and optocoupler 3 inputs are provided with input terminal 6 and input terminal 7.Input terminal 6,7 is received on air switch by lead-in wire, and lead-out terminal 4,5 provides without source contact for automatically-monitored, can orientate any lead-out terminal 4,5 one end as 801 common ports.In the time of transformer station or power plant protection automation remote monitoring air switch state, use, can effectively prevent the problem of remote signalling mistaking signal.
Shown in Fig. 2, be the utility model to be opened to the principle schematic using at one pole sky, one pole sky is opened in co-bit, between input terminal 6,7, there is no voltage, optocoupler input no current process, luminous tube is not worked, the output of optocoupler is opened, and in protection automation equipment, empty this one pole of this state called after switching is closed; One pole sky is opened in point position, between input terminal 6,7, does not have voltage, and optocoupler input has electric current process, luminous tube work, and the output closure of optocoupler is opened this one pole sky of this state called after separately in protection automation equipment.Solve the problem of known mistaking signal, guaranteed the correctness of signal, greatly improved monitor staff's judgment accuracy.
Figure 3 shows that the utility model single-phase sky open use principle schematic, single-phase sky is opened in co-bit, between input terminal 6,7, there is voltage, optocoupler input has electric current process, luminous tube work, the output closure of optocoupler is closed empty this one pole of this state called after switching in protection automation equipment; Single-phase sky is opened in point position, between input terminal 6,7, does not have voltage, optocoupler input no current process, and luminous tube is not worked, and the output of optocoupler is opened, and in protection automation equipment, this one pole sky of this state called after is opened separately.
Figure 4 shows that the utility model opens the principle schematic using at three-phase sky, two cover the utility model devices are connected on respectively on any two phase output terminals that three-phase sky opens to the same Fig. 3 of principle.Three-phase sky is opened in co-bit, between input terminal 6,7, has voltage, and optocoupler input has electric current process, luminous tube work, and the output closure of optocoupler is closed empty this one pole of this state called after switching in protection automation equipment; Three-phase sky is opened in point position, between input terminal 6,7, does not have voltage, optocoupler input no current process, and luminous tube is not worked, and the output of optocoupler is opened, and in protection automation equipment, this one pole sky of this state called after is opened separately.
Claims (1)
1. air switch status remote monitoring device, it is characterized in that including current-limiting resistance, optocoupler and circuit board, the input pin of optocoupler is received in current-limiting resistance series connection, optocoupler output is provided with two lead-out terminals, optocoupler input is provided with two input terminals, input terminal is received on air switch by lead-in wire, and lead-out terminal provides without source contact for automatically-monitored.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136539.5U CN203800704U (en) | 2014-03-25 | 2014-03-25 | Remote monitoring device for state of air switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136539.5U CN203800704U (en) | 2014-03-25 | 2014-03-25 | Remote monitoring device for state of air switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800704U true CN203800704U (en) | 2014-08-27 |
Family
ID=51382892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420136539.5U Expired - Lifetime CN203800704U (en) | 2014-03-25 | 2014-03-25 | Remote monitoring device for state of air switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800704U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872779A (en) * | 2014-03-25 | 2014-06-18 | 国家电网公司 | Air switch state remote monitoring device |
| CN105371761A (en) * | 2015-11-23 | 2016-03-02 | 国家电网公司 | Transformer substation air switch position online light detection sensing device |
| CN106597058A (en) * | 2016-11-22 | 2017-04-26 | 深圳职业技术学院 | Switch state and distance position determining method for electric equipment of distribution system |
-
2014
- 2014-03-25 CN CN201420136539.5U patent/CN203800704U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872779A (en) * | 2014-03-25 | 2014-06-18 | 国家电网公司 | Air switch state remote monitoring device |
| CN105371761A (en) * | 2015-11-23 | 2016-03-02 | 国家电网公司 | Transformer substation air switch position online light detection sensing device |
| CN105371761B (en) * | 2015-11-23 | 2018-07-10 | 国家电网公司 | A kind of online light detection sensing device in substation's air switch position |
| CN106597058A (en) * | 2016-11-22 | 2017-04-26 | 深圳职业技术学院 | Switch state and distance position determining method for electric equipment of distribution system |
| CN106597058B (en) * | 2016-11-22 | 2019-01-29 | 深圳职业技术学院 | A kind of distribution system electric equipment switch state and the method for distance and position judgement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |