CN202403792U - Transformer vibration detecting sensor - Google Patents
Transformer vibration detecting sensor Download PDFInfo
- Publication number
- CN202403792U CN202403792U CN2011205463139U CN201120546313U CN202403792U CN 202403792 U CN202403792 U CN 202403792U CN 2011205463139 U CN2011205463139 U CN 2011205463139U CN 201120546313 U CN201120546313 U CN 201120546313U CN 202403792 U CN202403792 U CN 202403792U
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- sensor
- transformer
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- circuit board
- vibration
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Abstract
The utility model relates to a transformer vibration detecting sensor, and belongs to the technical field of transformer detecting instruments. According to the technical scheme, the sensor comprises a top cap (1), a central pedestal (2), a base (3), a sensor vibrator (4), a circuit board I (5) and a circuit board II (6), wherein the base, the central pedestal and the top cap are sequentially arranged from bottom to top; the circuit boards are positioned in a cavity formed by the base and the central pedestal (2); and the sensor vibrator (4) is positioned in a cavity formed by the central pedestal (2) and the top cap (1). The sensor is wide in measuring band, strong in multi-cavity shielding anti-interference capability and small in size; and magnets are embedded into the bottom surface of the sensor, and the sensor can be attracted on a transformer shell, so the sensor is convenient to use. Vibration signals of equipment are acquired through one or more sensors arranged on the surface of the running equipment, then the vibration signals are analyzed and processed through a time domain or a frequency domain and the like to acquire feature information of the signals, and the working condition of the equipment is acquired by a certain diagnosis method.
Description
Technical field
The utility model relates to a kind of transformer vibration detecting sensor, belongs to transformer detecting instrument technical field.
Background technology
Acceleration transducer is a kind of small-sized inertial sensor, is the main survey instrument of many control system and detection system.Last century the seventies, along with The application of new technique and development such as microelectric technique, semiconductor technology sensor technology, computer technology and micro-processing technologies, the acceleration transducer technology has obtained fast development.Power transformer is one of major equipment in the electric system, utilizes it to be bound up the electrical network of different voltages, forms complicated electrical network or huge electric system, and plays an important role therein.The reliability service of power transformer is related to the safety of whole electrical network.How the operation conditions of power transformer is monitored, prevent its incipient fault, become the power department urgent problem.
From the present domestic emphasis that transformer is carried out vibration-testing and research, roughly can be divided into three aspects, the one, the vibrative mechanism of transformer is studied, comprise failure cause, fault progression and trend prediction etc.; The 2nd, the analysis to transformer produces vibration signal comprises analysis of spectrum, noise separation technology etc.; The 3rd, to the development of Vibration Monitoring, comprise measuring point layout, Signal Spacing and fault analysis etc.Through being attached to the situation of change of transformer vibration transducer on one's body transformer body vibration acceleration signal when monitoring zero load, thereby diagnose the measuring phase of inner winding.Its advantage is not to be electrically connected with whole conducting system, can be safely, on-line monitoring reliably.Vibration monitoring is a kind of external monitoring; One or more vibration transducers through being installed in the equipment surface of moving obtain its vibration signal; Then vibration signal is handled through time domain or frequency domain etc. analyses; The characteristic information of picked up signal obtains the working condition of equipment again through certain diagnostic method.The problem that background technology exists is: measuring frequency band is narrow, and a little less than the antijamming capability, volume is big, installs and use inconvenience.
The utility model content
The purpose of the utility model provides a kind of transformer vibration detecting sensor, and whole measuring system did not have with electric system and is electrically connected when simple, sensitive monitoring, on-line monitoring were installed, and is safe and reliable, solves the problems referred to above of background technology existence.
The technical scheme of the utility model is: a kind of transformer vibration detecting sensor; Comprise top cover, central seat, base, sensor vibration generator and circuit board one, circuit board two; Base, central seat and top cover set gradually from bottom to up; Circuit board is positioned at the cavity of being made up of base and central seat; Sensor vibration generator is positioned at the inside cavity of being made up of central seat and top cover, and this cavity body structure has reduced disturbing mutually between circuit and the oscillator, has reduced the influence of extraneous forceful electric power magnetic to internal circuit.
The composition of sensor vibration generator comprises piezoelectric ceramic piece and dividing plate metal, in the middle of two piezoelectric ceramic pieces the dividing plate metal is set, and is used for improving transducer sensitivity.
Be embedded with six blocks of magnet on the base, can be adsorbed on the transformer housing, easy to use.This sensor also can be applicable on other the low-frequency vibration equipment that metal shell is arranged.
Said circuit board is two.
The beneficial effect of the utility model is: the utility model measuring frequency band is wide, and multi-cavity body shielding antijamming capability is strong, and volume is little, and bottom surface is embedded with magnet, can be adsorbed on the transformer housing easy to use.One or more the utility model through being installed in the equipment surface of moving obtain its vibration signal; Then vibration signal is handled through time domain or frequency domain etc. analyses; The characteristic information of picked up signal; Obtain the working condition of equipment again through certain diagnostic method, use the reliability that vibratory drilling method monitoring power transformer not only can improve Operation of Electric Systems, and the scientific-technical progress of power industry is had important scientific value.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Among the figure: top cover 1, central seat 2, base 3, sensor vibration generator 4, circuit board 1, circuit board 26.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further through embodiment.
A kind of transformer vibration detecting sensor; Comprise top cover 1, central seat 2, base 3, sensor vibration generator 4 and circuit board 1, circuit board 26; Base, central seat and top cover set gradually from bottom to up, and circuit board is positioned at the cavity of being made up of base and central seat 2, and sensor vibration generator 4 is positioned at the inside cavity of being made up of central seat 2 and top cover 1; This cavity body structure has reduced disturbing mutually between circuit and the oscillator, has reduced the influence of extraneous forceful electric power magnetic to internal circuit.
The composition of sensor vibration generator 4 comprises piezoelectric ceramic piece and dividing plate metal, in the middle of two piezoelectric ceramic pieces the dividing plate metal is set, and is used for improving transducer sensitivity.
Be embedded with six blocks of magnet on the base 3, can be adsorbed on the transformer housing, easy to use.This sensor also can be applicable on other the low-frequency vibration equipment that metal shell is arranged.
Said circuit board is two.
Claims (3)
1. transformer vibration detecting sensor; It is characterized in that: comprise top cover (1), central seat (2), base (3), sensor vibration generator (4) and circuit board one (5), circuit board two (6); Base, central seat and top cover set gradually from bottom to up; Circuit board is positioned at the cavity of being made up of base and central seat (2), and sensor vibration generator (4) is positioned at the inside cavity of being made up of central seat (2) and top cover (1).
2. a kind of transformer vibration detecting sensor according to claim 1, it is characterized in that: the composition of sensor vibration generator (4) comprises piezoelectric ceramic piece and dividing plate metal, and the dividing plate metal is set in the middle of two piezoelectric ceramic pieces.
3. according to claim 1 or 2 said a kind of transformer vibration detecting sensors, it is characterized in that being embedded with on the base (3) six blocks of magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205463139U CN202403792U (en) | 2011-12-23 | 2011-12-23 | Transformer vibration detecting sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205463139U CN202403792U (en) | 2011-12-23 | 2011-12-23 | Transformer vibration detecting sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202403792U true CN202403792U (en) | 2012-08-29 |
Family
ID=46701434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205463139U Expired - Fee Related CN202403792U (en) | 2011-12-23 | 2011-12-23 | Transformer vibration detecting sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202403792U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643877A (en) * | 2016-11-18 | 2017-05-10 | 西安亚能电气有限责任公司 | Multi-sensing information fusion-based power transformer on-line monitoring system and method |
| CN106768293A (en) * | 2016-11-22 | 2017-05-31 | 国网上海市电力公司 | A kind of sensor for extra-high voltage transformer vibration-testing discharges and retracting device |
-
2011
- 2011-12-23 CN CN2011205463139U patent/CN202403792U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643877A (en) * | 2016-11-18 | 2017-05-10 | 西安亚能电气有限责任公司 | Multi-sensing information fusion-based power transformer on-line monitoring system and method |
| CN106768293A (en) * | 2016-11-22 | 2017-05-31 | 国网上海市电力公司 | A kind of sensor for extra-high voltage transformer vibration-testing discharges and retracting device |
| CN106768293B (en) * | 2016-11-22 | 2019-06-28 | 国网上海市电力公司 | A kind of sensor for extra-high voltage transformer vibration-testing releases and recovers device |
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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: 20120829 Termination date: 20131223 |