CN202797904U - Capacitor series voltage-sharing detection protecting device - Google Patents
Capacitor series voltage-sharing detection protecting device Download PDFInfo
- Publication number
- CN202797904U CN202797904U CN 201220489779 CN201220489779U CN202797904U CN 202797904 U CN202797904 U CN 202797904U CN 201220489779 CN201220489779 CN 201220489779 CN 201220489779 U CN201220489779 U CN 201220489779U CN 202797904 U CN202797904 U CN 202797904U
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- capacitor
- electric capacity
- relay
- unit
- resistance
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Abstract
The utility model relates to a capacitor series voltage-sharing detection protecting device, wherein a capacitor detection unit has two groups of circuits, each group of circuits comprises a capacitor, a resistance and an optical coupler, one end of the capacitor is connected with the middle point of the capacitor in series, the other end of the capacitor is connected with one end of the resistance, the other end of the resistance is respectively connected with an input end of a first optical coupler and the other one input end of a second optical coupler, and two groups of circuit optical couplers of the capacitor detection unit are output by being connected in parallel in the same direction to be sent to a capacitor protecting plate. A capacitor protecting unit comprises a 24V relay and a normally closed push button, wherein the input end of the 24V relay is used as an input end of the capacitor protecting unit, the outer portion of the output end of the 24V relay is connected with a protecting device, and the input end of the 24V relay is further connected with the normally closed push button. The capacitor series voltage-sharing detection protecting device is simple in structure and convenient to install. A light emitting diode arranged in a capacitor detection plate is broken over to light, and capacitors which are damaged can be conveniently distinguished, and can be conveniently maintained. The capacitor series voltage-sharing detection protecting device protects to stop in time, prevents the capacitor from being further damaged, and reduces cost and harm brought by damage of the capacitor.
Description
Technical field
The utility model belongs to the detection resist technology field of capacitor, is specifically related to a kind of capacitor's seriesu and all presses the detection protective device.
Background technology
The capacitor working method, the form of employing multiple unit capacitor parallel connection, every group has two capacitor's seriesus.During capacitor work, when certain capacitor is damaged, if untimely protection is shut down or made the capacitor group of damage in time break away from main circuit power supply; then not damaging electric capacity will damage because of overload; and cause the power supply buses short circuit, and enlarge the extent of damage of equipment, strengthened cost and harmfulness.
Summary of the invention
The purpose of this utility model is the further damage that prevents capacitor, and in time protection is shut down, and Cost reduction and capacitor damage the harm that brings.
For reaching above-mentioned purpose, technical solution adopted in the utility model is:
A kind of capacitor's seriesu is all pressed the detection protective device, is one group for two capacitor's seriesus, and the form of multiple unit capacitor parallel connection comprises that a plurality of capacitance detection units and an electric capacity protected location form.
Per two group capacitors are a unit, and two series capacitor mid points of every group connect capacitance detection unit; Capacitance detection unit has two groups of circuit, and every group of circuit comprises electric capacity, resistance and optocoupler.
The mid point of one termination series capacitor of electric capacity, one end of other end connecting resistance, the other end of resistance is connected with an input of the first optocoupler, another input of the second optocoupler respectively, also is serially connected with therein light-emitting diode between one tunnel capacitor and the electric capacity; The electric capacity protected location is given in the output in parallel in the same way of two groups of circuit optocouplers of capacitance detection unit.
Electric capacity protection unit comprises 24V relay and normally closed button; The input of 24V relay is as the input of electric capacity protection unit, the external protective device of its output, and described protective device is used for cutting out equipment to be protected; Also be connected to normally closed button on the input of 24V relay.
The utility model compared with prior art has the following advantages: as long as every group capacitor has a capacitor to damage; the capacitance detection unit testing circuit will produce Voltage unbalance; when circuital current reaches the On current of optocoupler; Light-Emitting Diode is lighted; optocoupler conducting output; give the electric capacity baffle, baffle work isolation output protection signal, equipment protection is shut down.Capacitor's seriesu voltage equalizing protection technical pattern is simple, and is easy for installation.Light-emitting diode conducting in the capacitance detection plate is shinny, is convenient to identify which group capacitor and damages, and is easy to maintenance.In time protection is shut down, and prevents the further damage of capacitor, and Cost reduction and capacitor damage the harm that brings.
Description of drawings
Fig. 1 is the utility model circuit diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the disclosed capacitor's seriesu of the utility model is all pressed the detection protective device, and 1 series connection is one group for two capacitors, the form of multiple unit capacitor parallel connection.Per two group capacitors are a unit 12, and two series capacitor 1 mid points of every group connect capacitance detection plate 3, other two termination power supply buses 2.Capacitance detection plate 3 has two groups of circuit, be composed in series by current-limiting impedance (among the figure for electric capacity 4 and resistance 5) and optocoupler 6 respectively, wherein also be connected in series on the way light-emitting diode 7.3 liang of groups of capacitance detection plate circuit optocoupler 6 is given electric capacity baffle 8 for output in parallel in the same way.Electric capacity baffle 8 is comprised of diode 9,24V relay 10 and button 11.Optocoupler 6 conductings, the 24V relay 10 of electric capacity baffle 8 gets electric work and forms self-locking, isolates simultaneously the output protection signal, and equipment protection is shut down.After handling the damage capacitor well, press baffle button 11, de-preservation, equipment can the normal boot-strap operation.
During capacitor work; when there being a capacitor to damage; the capacitance detection plate testing circuit produces Voltage unbalance, and when circuital current reached the On current of optocoupler, light-emitting diode was lighted; optocoupler conducting output; give the electric capacity baffle, the work of electric capacity baffle, relay gets electric and forms self-locking; isolate simultaneously the output protection signal, equipment protection is shut down.Light-emitting diode conducting in the capacitance detection plate is shinny, is convenient to identify which group capacitor and damages, and is easy to maintenance.After handling the damage capacitor well, press the baffle button, de-preservation, equipment can the normal boot-strap operation.
Claims (1)
1. a capacitor's seriesu is all pressed the detection protective device, is one group for two capacitor's seriesus, and the form of multiple unit capacitor parallel connection comprises that a plurality of capacitance detection units and an electric capacity protected location form, and is characterized in that:
Per two group capacitors are a unit (12), and two series capacitors (1) mid point of every group connects capacitance detection unit (3); Capacitance detection unit (3) has two groups of circuit, and every group of circuit comprises electric capacity (4), resistance (5) and optocoupler (6);
The mid point of one termination series capacitor (1) of electric capacity (4), one end of other end connecting resistance (5), the other end of resistance (5) is connected with an input of the first optocoupler (6), another input of the second optocoupler respectively, also is serially connected with light-emitting diode (7) between one tunnel capacitor (1) and the electric capacity (4) therein; Electric capacity protected location (8) is given in (3) two groups of circuit optocouplers of capacitance detection unit (6) output in parallel in the same way;
Electric capacity protection unit (8) comprises 24V relay (10) and normally closed button (11); The input of 24V relay (10) is as the input of the electric capacity unit of protection (8), the external protective device of its output, and described protective device is used for cutting out equipment to be protected; Also be connected to normally closed button (11) on the input of 24V relay (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220489779 CN202797904U (en) | 2012-09-24 | 2012-09-24 | Capacitor series voltage-sharing detection protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220489779 CN202797904U (en) | 2012-09-24 | 2012-09-24 | Capacitor series voltage-sharing detection protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202797904U true CN202797904U (en) | 2013-03-13 |
Family
ID=47825082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220489779 Withdrawn - After Issue CN202797904U (en) | 2012-09-24 | 2012-09-24 | Capacitor series voltage-sharing detection protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202797904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868147A (en) * | 2012-09-24 | 2013-01-09 | 杭州四达电炉成套设备有限公司 | Voltage-sharing detection protector for serially connected capacitors |
-
2012
- 2012-09-24 CN CN 201220489779 patent/CN202797904U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102868147A (en) * | 2012-09-24 | 2013-01-09 | 杭州四达电炉成套设备有限公司 | Voltage-sharing detection protector for serially connected capacitors |
| CN102868147B (en) * | 2012-09-24 | 2014-09-03 | 杭州四达电炉成套设备有限公司 | Voltage-sharing detection protector for serially connected capacitors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130313 Effective date of abandoning: 20140903 |
|
| RGAV | Abandon patent right to avoid regrant |