CN205027867U - System for be used for interior arc light fault detection of generator slip ring cell - Google Patents
System for be used for interior arc light fault detection of generator slip ring cell Download PDFInfo
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- CN205027867U CN205027867U CN201520806191.0U CN201520806191U CN205027867U CN 205027867 U CN205027867 U CN 205027867U CN 201520806191 U CN201520806191 U CN 201520806191U CN 205027867 U CN205027867 U CN 205027867U
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- slip ring
- arc light
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- ring cell
- generator slip
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Abstract
The utility model discloses a system for be used for interior arc light fault detection of generator slip ring cell, a system for be used for interior arc light fault detection of generator slip ring cell, including CPU, faint arc light sensor and wireless communication unit, faint arc light sensor and CPU's signal input part are connected, and wireless communication unit and CPU's signal output part is connected, CPU's output still is connected with trip -out protection circuit and malfunction alerting circuit. The utility model discloses a trouble on -line automatic detection of generator slip ring cell, and can improve the fault detection precision.
Description
Technical field
The utility model relates to a kind of system for arc light fault detect in Generator Slip Ring cell, belongs 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.
Utility model content
The purpose of this utility model 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 scheme that the utility model adopts 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.
Compared with prior art, the utility model 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 that the utility model provides.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model 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.
The utility model is used 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 utility model, 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 preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and distortion, these improve and distortion also should be considered as protection domain of the present utility model.
Claims (6)
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806191.0U CN205027867U (en) | 2015-10-19 | 2015-10-19 | System for be used for interior arc light fault detection of generator slip ring cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806191.0U CN205027867U (en) | 2015-10-19 | 2015-10-19 | System for be used for interior arc light fault detection of generator slip ring cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205027867U true CN205027867U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520806191.0U Active CN205027867U (en) | 2015-10-19 | 2015-10-19 | System for be used for interior arc light fault detection of generator slip ring cell |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158689A (en) * | 2015-10-19 | 2015-12-16 | 南京中凯光电技术有限公司 | System and method for detecting arc light faults in generator slip ring room |
| CN107607842A (en) * | 2017-09-13 | 2018-01-19 | 云南电网有限责任公司红河供电局 | A kind of arc light on-line monitoring system based on technology of Internet of things |
-
2015
- 2015-10-19 CN CN201520806191.0U patent/CN205027867U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158689A (en) * | 2015-10-19 | 2015-12-16 | 南京中凯光电技术有限公司 | System and method for detecting arc light faults in generator slip ring room |
| CN107607842A (en) * | 2017-09-13 | 2018-01-19 | 云南电网有限责任公司红河供电局 | A kind of arc light on-line monitoring system based on technology of Internet of things |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210028 A42, building N105, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Patentee after: Nanjing Zhongkai Optoelectronics Technology Co., Ltd. Address before: 210028 A42, building N105, 199 East shogunate Road, Gulou District, Jiangsu, Nanjing Patentee before: NANJING ZHONGKAI PHOTOELECTRIC TECHNOLOGY CO., LTD. |