CN202275143U - Circuit for detecting and metering driving energy storage of breaker - Google Patents
Circuit for detecting and metering driving energy storage of breaker Download PDFInfo
- Publication number
- CN202275143U CN202275143U CN2011203538183U CN201120353818U CN202275143U CN 202275143 U CN202275143 U CN 202275143U CN 2011203538183 U CN2011203538183 U CN 2011203538183U CN 201120353818 U CN201120353818 U CN 201120353818U CN 202275143 U CN202275143 U CN 202275143U
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- energy storage
- storage capacitor
- charging current
- resistance
- diode
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- 238000004146 energy storage Methods 0.000 title claims abstract description 23
- 239000003990 capacitor Substances 0.000 claims abstract description 28
- 238000001514 detection method Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 5
- 230000003287 optical effect Effects 0.000 abstract 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 1
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Abstract
Provided is a circuit for detecting and metering the driving energy storage of a breaker, comprising an energy storage capacitor, two resistors, a diode, an optical coupler, and a charging current transformer for detecting the charging current of the energy storage capacitor in a real time manner, wherein the first resistor and a second resistor, after being serially connected, are connected with the energy storage capacitor in parallel; the contact of the first resistor and the second resistor is connected to the cathode of the diode, with the anode of the diode being connected to the anode of a luminous tube in the optical coupler; the cathode of the luminous tube in the optical coupler is connected to the cathode of the energy storage capacitor; the emitter electrode of a photosensitive pipe in the optical coupler is grounding, with the collector electrode of the photosensitive pipe in the optical coupler being connected to a central controller in the breaker; and the charging current sense terminal of the central controller is connected with the charging current transformer. When being used, the circuit adopts two detecting methods for simultaneously judging whether the magnitude of voltage of the energy storage capacitor reaches the preset value or not. If any one of the detecting methods has detected that the energy storage capacitor has completed the energy storage, the energy storage of the capacitor is thought to be completed.
Description
Technical field
The utility model relates to the technical field of isolating switch, specifically is a kind of detection and metering circuit of driving energy storage of isolating switch.
Background technology
Do not drive the energy storage measuring ability in the existing circuit breaker, cause controller repeatedly to be threaded off, and do not take off, and then cause actual act delay time value to be far longer than time value set, bring harm to electrical network.
The utility model content
The technical matters that the utility model will solve provides a kind of detection and metering circuit of driving energy storage of simple in structure, the reliable isolating switch of control of threading off.
In order to solve the problems of the technologies described above; The utility model provides a kind of detection and metering circuit of driving energy storage of isolating switch, comprising: storage capacitor, first resistance, second resistance, diode, optocoupler and being used for detects the charging current mutual inductor of the charging current of storage capacitor in real time; First resistance and second resistance series connection back are parallelly connected with storage capacitor; The contact of first resistance and second resistance connects the negative electrode of diode; The anode of the luminotron in the anode of diode and the optocoupler links to each other; The negative electrode of the luminotron in the optocoupler links to each other with the negative pole of storage capacitor, the grounded emitter of the photosensitive tube in the optocoupler, when the collector of the photosensitive tube in the optocoupler uses with isolating switch in central controller link to each other.The charging current test side of central controller links to each other with said charging current mutual inductor.
The technique scheme of the utility model is compared prior art and had the following advantages: the detection of the driving energy storage of the isolating switch of the utility model and metering circuit are in use; When the magnitude of voltage on the storage capacitor arrives a certain fixed value; Give signal of central controller; For the action of central controller execute protection provides a foundation, guaranteed the reliability of threading off and controlling.In addition; Central controller detects charging current in real time through the charging current mutual inductor, according to the proportionate relationship of real-time charging current, duration of charging and charge volume, behind the slave controller electrification reset; Begin to calculate the charge capacity of storage capacitor; Electric weight up to storage capacitor satisfies the dropout requirement, puts zone bit, stops then calculating.During use, adopt two kinds of detection methods to judge simultaneously whether the magnitude of voltage on the storage capacitor arrives preset value, any one method detects storage capacitor energy storage and accomplishes, and thinks that then capacitance energy storage accomplishes.
Description of drawings
For the content that makes the utility model is more clearly understood, below basis specific embodiment and combine accompanying drawing, the utility model is done further detailed explanation, wherein
Fig. 1 is detection and the structural representation of metering circuit of the driving energy storage of the isolating switch among the embodiment.
Embodiment
See Fig. 1, the detection and the metering circuit of the driving energy storage of the isolating switch of present embodiment comprise: storage capacitor C1, first resistance R 1, second resistance R 2, diode D1, optocoupler U1 and being used for detects the charging current mutual inductor of the charging current of storage capacitor C1 in real time.
First resistance R 1 and second resistance R, 2 series connection backs are parallelly connected with storage capacitor C1; The contact of first resistance R 1 and second resistance R 2 connects the negative electrode of diode D1; The anode of the luminotron among the anode of diode D1 and the optocoupler U1 links to each other; The negative electrode of the luminotron among the optocoupler U1 links to each other with the negative pole of storage capacitor C1, the grounded emitter of the photosensitive tube among the optocoupler U1, when the collector of the photosensitive tube among the optocoupler U1 uses with isolating switch in central controller link to each other.The charging current test side of central controller links to each other with said charging current mutual inductor.GND among Fig. 1 is an earth terminal.
The charging current test side of central controller links to each other with said charging current mutual inductor.Central controller detects charging current in real time through the charging current mutual inductor; Proportionate relationship according to real-time charging current, duration of charging and charge volume; Behind the slave controller electrification reset, begin to calculate the charge capacity of storage capacitor C1, satisfy the dropout requirement up to the electric weight of storage capacitor C1; Put zone bit, stop then calculating.
During use, adopt two kinds of detection methods of present embodiment to judge simultaneously whether the magnitude of voltage on the storage capacitor C1 arrives preset value, any one method detects storage capacitor C1 energy storage and accomplishes, and thinks that then capacitance energy storage accomplishes.
Obviously, the foregoing description only be for explain clearly that the utility model does for example, and be not to be qualification to the embodiment of the utility model.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all embodiments.And conspicuous variation that these spirit that belong to the utility model are extended out or change still are among the protection domain of the utility model.
Claims (1)
1. the detection and the metering circuit of the driving energy storage of an isolating switch is characterized in that comprising: storage capacitor, first resistance, second resistance, diode, optocoupler and being used for detects the charging current mutual inductor of the charging current of storage capacitor in real time;
First resistance and second resistance series connection back are parallelly connected with storage capacitor; The contact of first resistance and second resistance connects the negative electrode of diode; The anode of the luminotron in the anode of diode and the optocoupler links to each other; The negative electrode of the luminotron in the optocoupler links to each other with the negative pole of storage capacitor, the grounded emitter of the photosensitive tube in the optocoupler, and the collector of the photosensitive tube in the optocoupler links to each other with the central controller of isolating switch;
The charging current test side of central controller links to each other with said charging current mutual inductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203538183U CN202275143U (en) | 2011-09-21 | 2011-09-21 | Circuit for detecting and metering driving energy storage of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203538183U CN202275143U (en) | 2011-09-21 | 2011-09-21 | Circuit for detecting and metering driving energy storage of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275143U true CN202275143U (en) | 2012-06-13 |
Family
ID=46195491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203538183U Expired - Fee Related CN202275143U (en) | 2011-09-21 | 2011-09-21 | Circuit for detecting and metering driving energy storage of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275143U (en) |
-
2011
- 2011-09-21 CN CN2011203538183U patent/CN202275143U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20120921 |