CN203069751U - Circuit breaker state monitoring device - Google Patents
Circuit breaker state monitoring device Download PDFInfo
- Publication number
- CN203069751U CN203069751U CN 201220629389 CN201220629389U CN203069751U CN 203069751 U CN203069751 U CN 203069751U CN 201220629389 CN201220629389 CN 201220629389 CN 201220629389 U CN201220629389 U CN 201220629389U CN 203069751 U CN203069751 U CN 203069751U
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- circuit
- monitoring device
- commutation diode
- capacitor
- status monitoring
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to a circuit breaker state monitoring device and belongs to the field of power measurement instruments and meters. The circuit breaker state monitoring device is characterized by comprising an input circuit, a resistive voltage division circuit, a voltage stabilizing circuit and a signal output circuit, wherein the input circuit is connected with the resistive voltage division circuit, and the resistive voltage division circuit is connected with the signal output circuit through the voltage stabilizing circuit. The device is reasonable in structure and convenient to use, and the charged state of an outlet of a circuit breaker is converted into a switching value through the opening and closing of an optically-coupled relay and serves as an input signal of a switching value monitoring device, thus facilitating a subsequent switching value monitoring device to monitor the circuit breaker.
Description
Technical field
The utility model relates to a kind of circuit-breaker status monitoring device, belongs to power measuring instrument instrument field.
Background technology
Most transformer stations have all realized unmanned, therefore need carry out remote monitoring to deciliter state of the isolating switch of transformer station, switch etc., monitoring to circuit-breaker status mainly is the state auxiliary contact that carry by monitoring breaker at present, because deciliter state interlock of state auxiliary contact and isolating switch, can give dry contact of other switching value monitoring equipments, in order to circuit-breaker status is monitored.There are two shortcomings in such monitoring method, and the one, though monitored deciliter state of isolating switch, whether monitoring has voltage less than the isolating switch outlet, that its real user is concerned about most is the latter; The 2nd, isolating switch needs the installment state auxiliary contact, not only take rack front panel space, and cost is higher.
The utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: the circuit-breaker status monitoring device of provide a kind of low cost, easily realizing.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of circuit-breaker status monitoring device is provided, it is characterized in that, comprise input circuit, resistor voltage divider circuit, mu balanced circuit, signal output apparatus, input circuit connects resistor voltage divider circuit, and resistor voltage divider circuit connects signal output apparatus by mu balanced circuit.
Input circuit is rectification circuit, comprise commutation diode D1～D4, commutation diode D1 is in parallel with commutation diode D2, and commutation diode D3 is in parallel with commutation diode D4, commutation diode D1 links to each other with commutation diode D4, and commutation diode D2 links to each other with commutation diode D3.
Resistor voltage divider circuit is made up of the resistance R 1 that is connected in parallel and resistance R 2.
The described mu balanced circuit of mu balanced circuit comprises stabilivolt D5, stabilivolt D6, capacitor C 1 and capacitor C 2, and stabilivolt D5, capacitor C 1 and capacitor C 2 backs in parallel link to each other with stabilivolt D6.
Signal output apparatus is light coupling relay.
Capacitor C 1 is separated electric capacity for point, and capacitor C 2 is ceramic disc capacitor.
The beneficial effect that the utility model has is, rational in infrastructure, easy to use, the folding by light coupling relay exports charged state with isolating switch and is converted into switching value, and then as the input signal of switching value monitoring equipment, make things convenient for the switching value monitoring equipment of back that isolating switch is monitored.
Description of drawings
Fig. 1 is the utility model circuit theory diagrams;
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Circuit-breaker status monitoring device as shown in Figure 1 comprises input circuit, resistor voltage divider circuit, and mu balanced circuit, signal output apparatus, input circuit connects resistor voltage divider circuit, and resistor voltage divider circuit connects signal output apparatus by mu balanced circuit.Input circuit is rectification circuit, comprise commutation diode D1～D4, commutation diode D1 is in parallel with commutation diode D2, and commutation diode D3 is in parallel with commutation diode D4, commutation diode D1 links to each other with commutation diode D4, and commutation diode D2 links to each other with commutation diode D3.Resistor voltage divider circuit is made up of the resistance R 1 that is connected in parallel and resistance R 2.
The described mu balanced circuit of mu balanced circuit comprises stabilivolt D5, stabilivolt D6, capacitor C 1 and capacitor C 2, and stabilivolt D5, capacitor C 1 and capacitor C 2 backs in parallel link to each other with stabilivolt D6.Signal output apparatus is light coupling relay.Capacitor C 1 is separated electric capacity for point, and capacitor C 2 is ceramic disc capacitor.
Input circuit carries rectification circuit, so input terminal voltage needn't be distinguished both positive and negative polarity.
If the exit of isolating switch is charged, and then its input voltage is higher, and rated voltage is DC250V, output light lotus root two ends only need the voltage about 3V to get final product, and therefore, input circuit part needs the resistance of big resistance and power, just can share unnecessary voltage, guarantee the reliable and stable work of circuit.
Mu balanced circuit of the present utility model is made up of stabilivolt and electric capacity, the voltage constant that makes light lotus root control end is 3V, light lotus root control end needs an electrochemical capacitor in parallel and a ceramic disc capacitor, even being input terminal voltage, purpose changes, also can not influence the steady operation of light lotus root, guarantee the stability of output signal.
Input circuit connects the exit of isolating switch, if the isolating switch outlet has voltage, and light coupling relay output high level signal; If the isolating switch outlet does not have voltage, light coupling relay output low level signal.Output signal has shown deciliter state of isolating switch, as the input signal of switching value monitoring equipment.
Claims (6)
1. a circuit-breaker status monitoring device is characterized in that, comprises input circuit, resistor voltage divider circuit, and mu balanced circuit, signal output apparatus, input circuit connects resistor voltage divider circuit, and resistor voltage divider circuit connects signal output apparatus by mu balanced circuit.
2. circuit-breaker status monitoring device according to claim 1, it is characterized in that, described input circuit is rectification circuit, comprise commutation diode D1～D4, commutation diode D1 is in parallel with commutation diode D2, commutation diode D3 is in parallel with commutation diode D4, and commutation diode D1 links to each other with commutation diode D4, and commutation diode D2 links to each other with commutation diode D3.
3. circuit-breaker status monitoring device according to claim 1 is characterized in that, described resistor voltage divider circuit is made up of the resistance R 1 that is connected in parallel and resistance R 2.
4. circuit-breaker status monitoring device according to claim 1 is characterized in that, described mu balanced circuit comprises stabilivolt D5, stabilivolt D6, capacitor C 1 and capacitor C 2, and stabilivolt D5, capacitor C 1 and capacitor C 2 backs in parallel link to each other with stabilivolt D6.
5. circuit-breaker status monitoring device according to claim 1 is characterized in that, described signal output apparatus is light coupling relay.
6. circuit-breaker status monitoring device according to claim 4 is characterized in that, described capacitor C 1 is separated electric capacity for point, and capacitor C 2 is ceramic disc capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629389 CN203069751U (en) | 2012-11-25 | 2012-11-25 | Circuit breaker state monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629389 CN203069751U (en) | 2012-11-25 | 2012-11-25 | Circuit breaker state monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203069751U true CN203069751U (en) | 2013-07-17 |
Family
ID=48768523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220629389 Expired - Fee Related CN203069751U (en) | 2012-11-25 | 2012-11-25 | Circuit breaker state monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203069751U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944837A (en) * | 2012-11-25 | 2013-02-27 | 山东电力集团公司滨州供电公司 | Device for monitoring breaker state |
| CN109917280A (en) * | 2019-02-21 | 2019-06-21 | 东软睿驰汽车技术（沈阳）有限公司 | A kind of circuit state detection system and its detection method and a kind of high tension loop |
-
2012
- 2012-11-25 CN CN 201220629389 patent/CN203069751U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944837A (en) * | 2012-11-25 | 2013-02-27 | 山东电力集团公司滨州供电公司 | Device for monitoring breaker state |
| CN109917280A (en) * | 2019-02-21 | 2019-06-21 | 东软睿驰汽车技术（沈阳）有限公司 | A kind of circuit state detection system and its detection method and a kind of high tension loop |
| CN109917280B (en) * | 2019-02-21 | 2021-06-08 | 东软睿驰汽车技术（沈阳）有限公司 | Circuit state detection system and detection method thereof and high-voltage loop |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20171125 |