CN105158689A - System and method for detecting arc light faults in generator slip ring room - Google Patents
System and method for detecting arc light faults in generator slip ring room Download PDFInfo
- Publication number
- CN105158689A CN105158689A CN201510674725.3A CN201510674725A CN105158689A CN 105158689 A CN105158689 A CN 105158689A CN 201510674725 A CN201510674725 A CN 201510674725A CN 105158689 A CN105158689 A CN 105158689A
- Authority
- CN
- China
- Prior art keywords
- arc light
- slip ring
- cpu
- fault
- generator slip
- 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.)
- Pending
Links
Abstract
The invention discloses a system for detecting arc light faults in a generator slip ring room. The system comprises a CPU, a weak arc light sensor, and a wireless communication unit. The weak arc light sensor is connected with the signal input end of the CPU. The wireless communication unit is connected with the signal output end of the CPU. The output end of the CPU is connected with a trip-out protective circuit and a fault alarm circuit. The invention also discloses a method for detecting arc light faults in the generator slip ring room. The weak arc light sensor detects faulted arc light in the generator slip ring room in real time, converts the faulted arc light into an optical signal and transmits the optical signal to the CPU via a fiber. The CPU outputs an alarm by means of the fault alarm circuit, performs trip-out protection by means of the trip-out protective circuit, and notifies an operation and maintenance worker by means of the wireless communication unit to carry out fault processing. The system online automatically detects the faults of generator slip ring room and improves fault detection precision.
Description
Technical field
The present invention relates to a kind of system for arc light fault detect in Generator Slip Ring cell, also relate to a kind of method for arc light fault detect in Generator Slip Ring cell, belong to technical field of generators.
Background technology
Synchronous alternator a kind ofly uses the solenoid armature generation current of rotation and the equipment of voltage.It comprises a rotor (rotary electromagnetic field) and a stator, is used to provide three-phase voltage.For modern Generator Set, due to capacity limit, rotor can not adopt permanent magnet, is generally electromagnet.Adopt this kind of method to need DC current to be contacted with slip ring by carbon brush, then by slip ring, exciting current is imported generator amature.
Under normal circumstances, running and comparing is stablized, and maintenance workload is also less for high-rating generator carbon brush and slip ring.But carbon brush and slip ring are that in generator, sound contacts the equipment with positive energy exchange; because affecting by factors such as the wearing and tearing of the environment temperature of the pressure of its through-flow size, carbon brush, surrounding, humidity, cleanliness, carbon brush and slip ring surface and manufacturing process own; in long-time running; easily between carbon brush and slip ring, there is arc light; if do not have Timeliness coverage hidden danger to process; likely will form vicious cycle; cause that brush pigtail blows, the shake of slip ring hacking, stage clip is disconnected, carbon brush shatters, and causes slip ring to burn, by the accident of forced-stopping machine formation ring fire time serious.Emergency stop not only causes system output drop, influential system stable operation, and also generation is endangered genset itself.
At present following method is mainly relied on to the detection of Generator Slip Ring cell:
1. day-to-day operation inspection:
Strengthen regularly working with irregular equipment tours of inspection, under normal circumstances, staff's per tour must check generator carbon brush, main inspection method checks inner case with electric torch by the glass shell irradiating Generator Slip Ring cell, measure the temperature of collector ring and carbon brush with infrared thermometer, during summer peak load and idle and voltage fluctuation is larger time should shorten temperature survey interval.
2. daily cleaning is safeguarded:
In normal operation, every day all will carry out cleaning, blowing ash work, keeps carbon brush and commutator slip ring light face to clean, if when chance abnormal occurrence causes carbon brush dust large, strengthen cleaning.Meet shutdown chance, maintenance comprehensively will clean, check slip ring, carbon brush, carbon brush holder and slip ring cover etc.Emphasis is wanted to process greasy dirt especially.
3. strengthen repair quality to control
Avoid causing in unit operation because repair quality is bad or combustion adjustment is improper, generator Seal Oil leaks, and is thrown on slip ring, increases the contact resistance between carbon brush and slip ring.
In sum, also mainly rely on human resources check and take precautions against at present to the detection of Generator Slip Ring cell, Detection accuracy is not high and there is larger waste of human resource.
Through conscientiously studying, comprehensively analyzing, what find the employing of Generator Slip Ring cell is glass shell, inside is easy to the impact by ambient light, and easily produce arc light between inner carbon brush and slip ring, and the fault light produced is also very faint, accordingly, the detection faint arc light detecting technology being applied to Generator Slip Ring cell will contribute to the fault detect of Generator Slip Ring cell.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of system for arc light fault detect in Generator Slip Ring cell is provided, solving Generator Slip Ring cell in prior art relies on artificial timing to patrol and examine, cause that waste of human resource, operation expense are high, fault discovery not in time, the not high technical matters of accuracy.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of system for arc light fault detect in Generator Slip Ring cell, comprise CPU, for gather fault arc light faint arc photosensor and for the radio communication unit with operation maintenance personnel communication; Described faint arc photosensor is connected with the signal input part of CPU, and described radio communication unit is connected with the signal output part of CPU; The signal output part of described CPU is also connected with trip protection circuit and failure alarm circuit;
Described faint arc photosensor detects the fault arc light of the little indoor of Generator Slip Ring in real time; fault arc light is converted to light signal and is transmitted through the fiber to CPU; CPU by failure alarm circuit outputting alarm, carry out trip protection by trip protection circuit, carries out fault handling by radio communication unit notice operation maintenance personnel simultaneously.
Described faint arc photosensor adopts passive arc light acquisition sensor.
Described CPU is also connected with man-machine interactive system, described man-machine interactive system comprise operating key and check for parameter, revise and event monitor, record liquid crystal display.
Described CPU is also connected with the communication module for communicating with host computer.
Described CPU is also connected with communication pilot lamp, and when communication module is in communication state, communication pilot lamp glimmers.
Described communication module is furnished with RS485 communication interface and ethernet communication interface.
Another object of the present invention is to provide a kind of method for arc light fault detect in Generator Slip Ring cell; faint arc photosensor is adopted to detect the fault arc light of Generator Slip Ring cell; optical signal prosessing is carried out to fault arc light and is sent to CPU; CPU controls outputting alarm and carries out trip protection, notifies that operation maintenance personnel carries out fault handling simultaneously.
Described optical signal prosessing comprises: adopt optical principle by the visible ray filtering in fault arc light, then the ultraviolet light in fault arc light is converted to light signal.
Compared with prior art, the present invention reaches
beneficial effect is:faint arc light detecting technology is applied in the detection of Generator Slip Ring cell, the On-line Fault that can not only realize Generator Slip Ring cell detects automatically, can also filter out when power plant staff patrols and examines with the light that electric torch irradiates, prevent surround lighting and electric torch from irradiating the malfunction of influence of light generation, improve fault detection accuracy; Adopt faint arc photosensor to detect arc light, the phenomenon of arc light occurs between the little indoor carbon brush of Real-Time Monitoring Generator Slip Ring and slip ring, can Timeliness coverage hidden danger, avoid ring fire, Accident prevention expands further, extension device serviceable life, ensures that electrical network normally runs; Meanwhile, can waste of human resource be reduced, save maintenance cost.
Accompanying drawing explanation
Fig. 1 is a kind of schematic block circuit diagram for the system of arc light fault detect in Generator Slip Ring cell provided by the invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1; for the system of arc light fault detect in Generator Slip Ring cell, the communication module comprising CPU and be connected with CPU, faint arc photosensor, failure alarm circuit, trip protection circuit, radio communication unit, communication pilot lamp and man-machine interactive system.Respectively each several part is described in detail below:
CPU: adopt 32 bit CPUs, inside carries watchdog function, effectively prevents program fleet.Master chip is with high speed in-line memory, and accept the conventional peripheral hardwares such as transmitter USART with timer, analog/digital converter ADC, serial peripheral equipment interface SPI, I2C bus, universal synchronous/asynchronous, with quick I/O interface and communication interface, there is remarkable calculated performance and advanced interrupt system response function.
Communication module: being furnished with RS485 communication interface and ethernet communication interface, for communicating with host computer, realizing Long-distance Control, adopts standard MODBUS communications protocol and 103 agreements promulgated by the ministries or commissions of the Central Government, also supports other agreements simultaneously, provides the communications protocol opened to user.
Communication pilot lamp: when communication module is in communication state, is connected to the communication pilot lamp flicker on CPU.
Faint arc photosensor: gather for faint fault arc light, adopt passive arc light acquisition sensor,
Faint arc photosensor is the ZK1200-5ARC sensor coming from the production of Nanjing Zhong Kai photoelectricity technology corporation, Ltd., and adds optical technology improvement on this basis.When there is faint arc fault, faint arc photosensor first by the visible ray filtering in fault arc light, and transfers the ultraviolet light in fault arc light to transfer efficiency higher light signal with optical principle, passes to CPU, support the 20 faint arc lights inputs in road by optical fiber.
Radio communication unit: when faint arc light being detected, by the mode proactive notification operation maintenance personnel of wireless transmission.
Man-machine interactive system: configuration touch key operating key, each button is furnished with Chinese mark, and operating personnel operate system by button; Adopt hommization panel designs, configure full chinese liquid crystal display device, operate each menu page by level, can monitor the various data of system acquisition and various event according to menu prompt, record, directly can carry out the operations such as parameter is checked, amendment by menu.
Failure alarm circuit and trip protection circuit are connected to the signal output part of CPU, and when detecting the fault arc light of the little indoor of Generator Slip Ring, CPU is by failure alarm circuit outputting alarm, carry out trip protection by trip protection circuit.
For the method for arc light fault detect in Generator Slip Ring cell; faint arc photosensor is adopted to detect the fault arc light of Generator Slip Ring cell; adopt optical principle by the visible ray filtering in fault arc light to fault arc light; then the ultraviolet light in fault arc light is converted to light signal and is sent to CPU; CPU controls outputting alarm and carries out trip protection, notifies that operation maintenance personnel carries out fault handling simultaneously.
Faint arc light detecting technology is applied in the detection of Generator Slip Ring cell by the present invention, the On-line Fault that can not only realize Generator Slip Ring cell detects automatically, can also filter out when power plant staff patrols and examines with the light that electric torch irradiates, prevent surround lighting and electric torch from irradiating the malfunction of influence of light generation, improve fault detection accuracy, there is good market popularization value.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (8)
1., for a system for arc light fault detect in Generator Slip Ring cell, it is characterized in that, comprise CPU, for gather fault arc light faint arc photosensor and for the radio communication unit with operation maintenance personnel communication; Described faint arc photosensor is connected with the signal input part of CPU, and described radio communication unit is connected with the signal output part of CPU; The signal output part of described CPU is also connected with trip protection circuit and failure alarm circuit;
Described faint arc photosensor detects the fault arc light of the little indoor of Generator Slip Ring in real time; fault arc light is converted to light signal and is transmitted through the fiber to CPU; CPU by failure alarm circuit outputting alarm, carry out trip protection by trip protection circuit, carries out fault handling by radio communication unit notice operation maintenance personnel simultaneously.
2. the system for arc light fault detect in Generator Slip Ring cell according to claim 1, is characterized in that, described faint arc photosensor adopts passive arc light acquisition sensor.
3. the system for arc light fault detect in Generator Slip Ring cell according to claim 1, it is characterized in that, described CPU is also connected with man-machine interactive system, described man-machine interactive system comprise operating key and check for parameter, revise and event monitor, record liquid crystal display.
4. the system for arc light fault detect in Generator Slip Ring cell according to claim 1, is characterized in that, described CPU is also connected with the communication module for communicating with host computer.
5. the system for arc light fault detect in Generator Slip Ring cell according to claim 4, is characterized in that, described CPU is also connected with communication pilot lamp, and when communication module is in communication state, communication pilot lamp glimmers.
6. the system for arc light fault detect in Generator Slip Ring cell according to claim 4, is characterized in that, described communication module is furnished with RS485 communication interface and ethernet communication interface.
7. for the method for arc light fault detect in Generator Slip Ring cell; it is characterized in that; faint arc photosensor is adopted to detect the fault arc light of Generator Slip Ring cell; optical signal prosessing is carried out to fault arc light and is sent to CPU; CPU controls outputting alarm and carries out trip protection, notifies that operation maintenance personnel carries out fault handling simultaneously.
8. according to claim 7 for the method for arc light fault detect in Generator Slip Ring cell, it is characterized in that, described optical signal prosessing comprises: adopt optical principle by the visible ray filtering in fault arc light, then the ultraviolet light in fault arc light is converted to light signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510674725.3A CN105158689A (en) | 2015-10-19 | 2015-10-19 | System and method for detecting arc light faults in generator slip ring room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510674725.3A CN105158689A (en) | 2015-10-19 | 2015-10-19 | System and method for detecting arc light faults in generator slip ring room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105158689A true CN105158689A (en) | 2015-12-16 |
Family
ID=54799607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510674725.3A Pending CN105158689A (en) | 2015-10-19 | 2015-10-19 | System and method for detecting arc light faults in generator slip ring room |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105158689A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111407296A (en) * | 2020-03-31 | 2020-07-14 | 上海联影医疗科技有限公司 | Slip ring cleaning method and device, computer equipment and storage medium |
| CN111913041A (en) * | 2020-09-02 | 2020-11-10 | 安徽一天电能质量技术有限公司 | Alternating current switch cabinet arc light detection system and method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601480U (en) * | 2009-12-31 | 2010-10-06 | 南京弘毅电气自动化有限公司 | Arc light protecting system |
| CN101902030A (en) * | 2010-07-14 | 2010-12-01 | 西安交通大学 | Detecting and positioning device of arc fault of switch apparatus |
| CN103427397A (en) * | 2013-07-23 | 2013-12-04 | 大唐华银电力股份有限公司 | Fire protection method and system of slip ring of generator rotor |
| CN103809043A (en) * | 2012-11-08 | 2014-05-21 | 南京南瑞继保电气有限公司 | Detection discrimination method of arc light fault |
| CN104092182A (en) * | 2014-06-09 | 2014-10-08 | 安徽金捷光电科技有限公司 | Electric arc light protection device |
| CN205027867U (en) * | 2015-10-19 | 2016-02-10 | 南京中凯光电技术有限公司 | System for be used for interior arc light fault detection of generator slip ring cell |
-
2015
- 2015-10-19 CN CN201510674725.3A patent/CN105158689A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201601480U (en) * | 2009-12-31 | 2010-10-06 | 南京弘毅电气自动化有限公司 | Arc light protecting system |
| CN101902030A (en) * | 2010-07-14 | 2010-12-01 | 西安交通大学 | Detecting and positioning device of arc fault of switch apparatus |
| CN103809043A (en) * | 2012-11-08 | 2014-05-21 | 南京南瑞继保电气有限公司 | Detection discrimination method of arc light fault |
| CN103427397A (en) * | 2013-07-23 | 2013-12-04 | 大唐华银电力股份有限公司 | Fire protection method and system of slip ring of generator rotor |
| CN104092182A (en) * | 2014-06-09 | 2014-10-08 | 安徽金捷光电科技有限公司 | Electric arc light protection device |
| CN205027867U (en) * | 2015-10-19 | 2016-02-10 | 南京中凯光电技术有限公司 | System for be used for interior arc light fault detection of generator slip ring cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111407296A (en) * | 2020-03-31 | 2020-07-14 | 上海联影医疗科技有限公司 | Slip ring cleaning method and device, computer equipment and storage medium |
| CN111913041A (en) * | 2020-09-02 | 2020-11-10 | 安徽一天电能质量技术有限公司 | Alternating current switch cabinet arc light detection system and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104298202A (en) | Industrial field intelligent monitoring terminal based on internet of things | |
| CN106443362A (en) | Power distribution network fault detection system | |
| CN204440126U (en) | The automatically-monitored controller of diesel generator set | |
| CN205792453U (en) | A kind of distributed photovoltaic system online insulation against ground safety monitoring assembly | |
| CN205027867U (en) | System for be used for interior arc light fault detection of generator slip ring cell | |
| CN115755738A (en) | Mining intelligent power monitoring system | |
| CN202363972U (en) | Remote operation and maintenance platform of substation secondary system | |
| CN105158689A (en) | System and method for detecting arc light faults in generator slip ring room | |
| CN106297156A (en) | A kind of power plant cable fire on-line monitoring early warning system and method | |
| CN102681500B (en) | System and method for solar intelligent monitoring | |
| CN105527914A (en) | Double-CPU reliably-designed base station power environment monitoring device and method | |
| CN204613374U (en) | A kind of DC earthing pick-up unit of electric system and system | |
| CN208472268U (en) | A kind of spinning frame broken yarn cruising inspection system | |
| CN106646116A (en) | Trouble shooting and locating method for power distribution network | |
| CN105762938A (en) | Distributed photovoltaic distribution network monitoring system and control method thereof | |
| CN205844850U (en) | A kind of electric power letter logical fortune inspection communications equipment room detecting system | |
| CN103795141A (en) | DC reclosing switch | |
| CN205138410U (en) | Generator monitoring system | |
| CN201360139Y (en) | Group-type microcomputer motor protective monitoring device | |
| CN210469377U (en) | Cross-space cascade monitoring system | |
| CN203798959U (en) | Power over-voltage/over-current fault indicator | |
| CN103605019A (en) | On-line monitoring system and on-line monitoring method for all electrical devices of power plant | |
| CN203940883U (en) | A kind of transformer fault diagnosis system | |
| CN202443083U (en) | Arc light protection module | |
| CN105978157A (en) | Integrated switch cabinet monitoring terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 210028 A42, building N105, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Applicant after: Nanjing Kay Photoelectric Technology Co Ltd Address before: 210028 A42, building N105, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Applicant before: NANJING ZHONGKAI PHOTOELECTRIC TECHNOLOGY CO., LTD. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |