CN204481464U - Capacitor faults on-line measuring device - Google Patents
Capacitor faults on-line measuring device Download PDFInfo
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- CN204481464U CN204481464U CN201520219502.3U CN201520219502U CN204481464U CN 204481464 U CN204481464 U CN 204481464U CN 201520219502 U CN201520219502 U CN 201520219502U CN 204481464 U CN204481464 U CN 204481464U
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- measuring device
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to capacitor faults on-line measuring device; belong to detection technique field; can on-line checkingi capacitor status; by the analysis to running current under rated capacitor voltage; the parameters such as phase, short circuit, overcurrent of being broken by inline diagnosis capacitor are compared, and determine capacitor quality, concurrent signal or the maintenance signal of being out of order; cutting-off controlling loop, reaches the object of capacitor protection simultaneously.The utility model is applicable to the power consumer that industrial and mining enterprises, oil field, harbour, residential quarter, public utility, rural power grids etc. need reactive power compensation, meet the needs of client to capacitor maintenance and repair, prevent the harmonic source caused because of capacitor from administering skew, short-circuit fire or phase shortage and cross the defects such as benefit.
Description
Technical field
The utility model relates to field of fault detection, specifically, is capacitor faults on-line measuring device.
Background technology
Capacitor is mainly used in mending the reactive power of tasting electric power system inductive load, to improve power factor, reduces line loss, improves the ability to transmit electricity that system voltage quality increases power transmission and transforming equipment.Capacitor and reactor series connection use can effective harmonic carcellations, improve grid supply quality.Therefore, the normal operation of capacitor plays an important role to the power supply quality and benefit that ensure electric power system.But, in actual use, because capacitor is in Long-Time Service and frequent switching process, part valve group can be caused to damage, the capacitance of capacitor reduces, delivery efficiency reduces, and affect loop reactive power compensation efficiency or reactor and capacitor match parameter are changed, harmonic wave control lost efficacy.
Utility model content
The purpose of this utility model is the problem solving capacitor detection, provides capacitor faults on-line measuring device.
For achieving the above object, the utility model provides following technical scheme:
The utility model relates to capacitor faults on-line measuring device, comprise circuit breaker, DC Module, PLC, three-phase current transmitter, monitor, it is characterized in that, the detection signal input of described PLC connects three-phase current transmitter, the control signal output of described PLC connects certain value resistance, fixed value resistance connects the electric capacity switch in circuit to be detected, described PLC also connects DC Module, a mains switch A is respectively set at DC Module two ends, B, described PLC also connects a mains switch C, mains switch C is in parallel with DC Module, the terminal of parallel circuits arranges circuit breaker, described PLC is connection monitoring device also, described three-phase current transmitter is arranged between the humorous wave reactor of series connection in circuit to be detected and capacitor.
As further scheme of the present utility model, described circuit breaker adopts C65H type circuit breaker.
As further scheme of the present utility model, described PLC adopts S-300 series of programmable PLC.
As further scheme of the present utility model, described DC Module adopts TRIO-DIODE/12-24DC/2X10/1X20 type DC Module.
As further scheme of the present utility model, described monitor adopts IBM or Dell's PC.
As further scheme of the present utility model, described three-phase current transmitter adopts HC-11 type current transducer.
Compared with prior art, good effect of the present utility model is:
1. the utility model can on-line checkingi capacitor status; by the analysis to running current under rated capacitor voltage; the parameters such as phase, short circuit, overcurrent of being broken by inline diagnosis capacitor are compared; determine capacitor quality; concurrent signal or the maintenance signal of being out of order; cutting-off controlling loop, reaches the object of capacitor protection simultaneously.
2. the utility model is applicable to the power consumer that industrial and mining enterprises, oil field, harbour, residential quarter, public utility, rural power grids etc. need reactive power compensation, meet the needs of client to capacitor maintenance and repair, prevent the harmonic source caused because of capacitor from administering skew, short-circuit fire or phase shortage and cross the defects such as benefit.。
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of capacitor faults on-line measuring device.
Mark in Fig. 1 is respectively: 1. circuit breaker; 2. mains switch C; 3. mains switch A; 4. mains switch B; 5. DC Module; 6.PLC controller; 7. fixed value resistance; 8. electric capacity cutter; 9. the humorous wave reactor of series connection; 10. three-phase current transmitter; 11. capacitors; 12. monitors.
Embodiment
The technological means realized to make the utility model, character of innovation, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As shown in Figure 1, capacitor faults on-line measuring device, comprise circuit breaker 1, DC Module 5, PLC 6, three-phase current transmitter 10, monitor 12, it is characterized in that, the detection signal input of described PLC 6 connects three-phase current transmitter 10, the control signal output of described PLC 6 connects certain value electricity 7 resistance, fixed value resistance connects the electric capacity switch 8 in circuit to be detected, described PLC also connects DC Module 5, a mains switch A is respectively set at DC Module two ends, B (3, 4), described PLC also connects a mains switch C2, mains switch C is in parallel with DC Module, the terminal of parallel circuits arranges circuit breaker 1, described PLC is connection monitoring device 12 also, described three-phase current transmitter 10 is arranged between the humorous wave reactor 9 of series connection in circuit to be detected and capacitor 11.
Wherein, described circuit breaker 1 adopts C65H type circuit breaker.
Wherein, described PLC 6 adopts S-300 series of programmable PLC.
Wherein, described DC Module 5 adopts TRIO-DIODE/12-24DC/2X10/1X20 type DC Module.
Wherein, described monitor 12 adopts IBM or Dell's PC.
Wherein, described three-phase current transmitter 10 adopts HC-11 type current transducer.
Operation principle of the present utility model is as follows:
Three-phase capacitor operating current is converted to the identifiable design analog signals of 4-20mA by current transducer, input corresponding PLC output module respectively, by CPU operation program and data base administration, effective identification capacitor running status, when capacitor break phase, short circuit, overcurrent or electric capacity exhaustion rate more than 30% time, can effective disengagement failure loop, and send corresponding alarm signal.
The capacitor faults on-line measuring device that the utility model relates to adopts filtering compensation controller to control the series resonant circuit of contactless controllable silicon, zero cross fired and switched capacitor and reactor composition, tracking load is idle and the change of harmonic wave, power grid quality is made to reach effective improvement, be applicable to the power consumer that industrial and mining enterprises, oil field, harbour, residential quarter, public utility, rural power grids etc. need reactive power compensation, meet many-sided needs such as customer equipment renovates, raising equipment is exerted oneself, energy savings.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, therefore all changes be intended in the implication of the equivalency by dropping on claim and scope are included in the utility model, any Reference numeral in claim should be considered as the claim involved by limiting.
Claims (6)
1. capacitor faults on-line measuring device, comprise circuit breaker, DC Module, PLC, three-phase current transmitter, monitor, it is characterized in that, the detection signal input of described PLC connects three-phase current transmitter, the control signal output of described PLC connects certain value resistance, fixed value resistance connects the electric capacity switch in circuit to be detected, described PLC also connects DC Module, a mains switch A is respectively set at DC Module two ends, B, described PLC also connects a mains switch C, mains switch C is in parallel with DC Module, the terminal of parallel circuits arranges circuit breaker, described PLC is connection monitoring device also, described three-phase current transmitter is arranged between the humorous wave reactor of series connection in circuit to be detected and capacitor.
2. capacitor faults on-line measuring device according to claim 1, is characterized in that, described circuit breaker adopts C65H type circuit breaker.
3. capacitor faults on-line measuring device according to claim 1, is characterized in that, described PLC adopts S-300 series of programmable PLC.
4. capacitor faults on-line measuring device according to claim 1, is characterized in that, described DC Module adopts TRIO-DIODE/12-24DC/2X10/1X20 type DC Module.
5. capacitor faults on-line measuring device according to claim 1, is characterized in that, described monitor adopts IBM or Dell's PC.
6. capacitor faults on-line measuring device according to claim 1, is characterized in that, described three-phase current transmitter adopts HC-11 type current transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520219502.3U CN204481464U (en) | 2015-04-13 | 2015-04-13 | Capacitor faults on-line measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520219502.3U CN204481464U (en) | 2015-04-13 | 2015-04-13 | Capacitor faults on-line measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204481464U true CN204481464U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520219502.3U Expired - Fee Related CN204481464U (en) | 2015-04-13 | 2015-04-13 | Capacitor faults on-line measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204481464U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206508A (en) * | 2016-12-20 | 2018-06-26 | 南京南瑞继保电气有限公司 | A kind of adaptive shunt capacitor impedance protecting method |
| CN108496086A (en) * | 2016-01-29 | 2018-09-04 | Abb瑞士股份有限公司 | Failure allows capacitor device |
| CN110542810A (en) * | 2019-08-27 | 2019-12-06 | 中国神华能源股份有限公司神朔铁路分公司 | Fault detection method, device, system and equipment for filter capacitor |
-
2015
- 2015-04-13 CN CN201520219502.3U patent/CN204481464U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108496086A (en) * | 2016-01-29 | 2018-09-04 | Abb瑞士股份有限公司 | Failure allows capacitor device |
| CN108496086B (en) * | 2016-01-29 | 2019-07-05 | Abb瑞士股份有限公司 | Failure allows capacitor device |
| US10386403B2 (en) | 2016-01-29 | 2019-08-20 | Abb Schweiz Ag | Failure tolerant capacitor device |
| CN108206508A (en) * | 2016-12-20 | 2018-06-26 | 南京南瑞继保电气有限公司 | A kind of adaptive shunt capacitor impedance protecting method |
| CN108206508B (en) * | 2016-12-20 | 2019-05-21 | 南京南瑞继保电气有限公司 | A kind of adaptive shunt capacitor impedance protecting method |
| CN110542810A (en) * | 2019-08-27 | 2019-12-06 | 中国神华能源股份有限公司神朔铁路分公司 | Fault detection method, device, system and equipment for filter capacitor |
| CN110542810B (en) * | 2019-08-27 | 2021-11-30 | 中国神华能源股份有限公司神朔铁路分公司 | Fault detection method, device, system and equipment for filter capacitor |
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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 |
Granted publication date: 20150715 Termination date: 20200413 |
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| CF01 | Termination of patent right due to non-payment of annual fee |