CN205910269U - Distribution transformer running state's monitoring devices - Google Patents

Distribution transformer running state's monitoring devices Download PDF

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Publication number
CN205910269U
CN205910269U CN201620666159.1U CN201620666159U CN205910269U CN 205910269 U CN205910269 U CN 205910269U CN 201620666159 U CN201620666159 U CN 201620666159U CN 205910269 U CN205910269 U CN 205910269U
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China
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module
distribution transformer
microcontroller
detection module
temperature
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Active
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CN201620666159.1U
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Inventor
汤怀收
洪岩
张体威
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Wuhan Tong Ke Electric Power Technology Co Ltd
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Wuhan Tong Ke Electric Power Technology Co Ltd
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Abstract

The utility model discloses a distribution transformer running state's monitoring devices. Including voltage testing, current detection module, temperature sensor, vibration sensor, signal acquisition module, microcontroller, communication module, storage module and operation module, wherein, voltage testing current detection module temperature sensor with vibration sensor respectively with the signal acquisition module links to each other, the signal acquisition module links to each other with microcontroller, microcontroller with communication module storage module with operation module links to each other. The device can the monitoring wire way load uneven with transship the potential safety hazard of bringing for distribution transformer, internal security hidden danger that also can the monitor body.

Description

A kind of monitoring device of distribution transformer running status
Technical field
Basis is new to be related to transformer monitoring field, more particularly to a kind of monitoring device of distribution transformer running status.
Background technology
If distribution transformer is chronically in the case of exceeding normal power working condition or laod unbalance, cause institute State distribution transformer overload operation, thus produce too high temperature and will lead to the premature aging that insulate.When described distribution transformer Insulating board aging after, paper board strength can reduce, and after overload again, its electromagnetic force this may result in absolutely Edge is damaged, and then breaks down.Described Distribution Transformer Burning may be led to when serious.Therefore transfinite in discovery running temperature When, need timely cut-out load, in described distribution transformer running, if each branch of described distribution transformer occurs Also the safety and economic operation of power distribution network is influenced whether when the load carrying on loop is seriously uneven.In addition, becoming in described distribution When the load that each duplexure of depressor is carried is all within normal range, described distribution transformer itself is probably due to long-time transport Iron core in row and winding deforms, situations such as shift or loosen and crackle occurs.In the prior art, distribution is become The monitoring of depressor is to rely on live patrol officer to go equipment is tested, and the method can not understand the feelings of distribution transformer in real time Condition, it is thus impossible to the very first time carry out malfunction elimination.
Content of the invention
It is an object of the invention to provide a kind of distribution transformer monitoring running state device, circuit traffic overload can be detected Or when seriously uneven, the potential safety hazard brought to distribution transformer.When line load is normal moreover it is possible to feelings are vibrated by device body Condition has or not internal security problem diagnosing distribution transformer itself, and patrol officer scene need not be relied on to carry out checking and just can learn and join The running status of piezoelectric transformer, can detect the running status of distribution transformer in real time, the very first time can carry out fault row Look into.
For achieving the above object, the invention provides following scheme:
A kind of distribution transformer monitoring running state device includes voltage detection module, current detection module, temperature biography Sensor, vibrating sensor, signal acquisition module, microcontroller, communication module, memory module and operation module, wherein, described electricity Pressure detection module, described current detection module, described temperature sensor and described vibrating sensor respectively with described signals collecting Module is connected, and described signal acquisition module is connected with microcontroller, described microcontroller and described communication module, described storage mould Block is connected with described operation module;
Described voltage detection module includes three voltage transformers, monitors and obtain the three-phase circuit of distribution transformer respectively Middle a phase, b phase, the voltage analog signal of c phase;
Described current detection module includes the electric current being arranged on not isopen on described distribution transformer difference duplexure Transformer, monitors and obtains the current analog signal of each duplexure of distribution transformer;
Described temperature sensor, obtains running temperature and the local environment temperature of described distribution transformer for measurement;
Described vibrating sensor, obtains described distribution transformer device body frequency of vibration everywhere and amplitude for monitoring.
Optionally, described signal acquisition module is made up of two acquisition chips, and one is electric energy measure chip, and one is to adopt Truck, wherein said voltage detection module, described current detection module, described temperature sensor and described electric energy measure chip phase Even, it is connected to a signal conditioner in the middle of described vibrating sensor and described capture card.
Optionally, described microcontroller is stm32f103 single-chip microcomputer.
Optionally, described communication module is specifically for joining every phase network load of each for distribution transformer duplexure Number, actual environment temperature value, actual motion temperature value and actual vibration frequency and amplitude are delivered to terminal system.
Optionally, described memory module is specifically for every phase network load ginseng of the storage each duplexure of distribution transformer Number, actual environment temperature value, actual motion temperature value and actual vibration frequency and amplitude.
Optionally, described operation module, the operating condition of operation distribution transformer monitoring running state device, when discovery is joined When piezoelectric transformer has abnormal parameters when running, make corresponding operation in time and abnormal resulties are fed back to described microcontroller.
The specific embodiment being provided according to the present invention, the invention discloses following technique effect: by voltage x current Monitoring, whether the load distribution that detection distribution transformer is carried balances, if find that the distribution of institute carry load is seriously uneven, The unnecessary load being carried should be cut away in time, be allowed to maintain balance as far as possible;Distribution transformer is obtained by temperature sensor measurement Running temperature and local environment temperature, when find temperature rise exceed normal range when, should by operating unit to distribution transformer Operating condition regulated and controled;Distribution transformer device body frequency of vibration everywhere and amplitude are monitored by vibrating sensor, when sending out Show frequency of vibration or amplitude not when normal range it may be possible to distribution transformer causes device body crackle because working long hours, Or distribution transformer iron core or winding occur deformation, displacement, loosen caused, go to detect concrete former before staff can be sent Barrier.And a specialist system can be formed by the failure logging occurring in memory element, convenient occur using during similar fault later Make reference.Line load can be monitored uneven and transship the potential safety hazard brought to distribution transformer, also can monitor body inside Potential safety hazard.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment Need use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only the present invention some enforcement Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings Obtain other accompanying drawings.
Fig. 1 is the structural representation of the power transformer detecting device of the embodiment of the present application.
Fig. 2 is the structural representation of the signal acquisition module of the embodiment of the present application.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work Embodiment, broadly falls into the scope of protection of the invention.
It is an object of the invention to provide a kind of distribution transformer monitoring running state device, which includes voltage detecting mould Block, current detection module, temperature sensor, vibrating sensor, signal acquisition module, microcontroller, communication module, memory module And operation module.Line load can be monitored uneven and transship the potential safety hazard brought to distribution transformer, also can monitor body Internal security hidden danger.
Understandable for enabling the above objects, features and advantages of the present invention to become apparent from, below in conjunction with the accompanying drawings and specifically real The present invention is further detailed explanation to apply mode.
A kind of distribution transformer monitoring running state device, Fig. 1 is the power transformer detecting device of the embodiment of the present application Module map, as shown in figure 1, described device includes voltage detection module 101, current detection module 102, temperature sensor 103rd, vibrating sensor 104, signal acquisition module, microcontroller 108, communication module 109, memory module 110 and operation module 111, wherein, described voltage detection module 101, described current detection module 102, described temperature sensor 103 and described vibration Sensor 104 is connected with described signal acquisition module respectively, and described signal acquisition module is connected with microcontroller 108, described micro- Controller 108 is connected with described communication module 109, described memory module 110 and described operation module 111;
Described voltage detection module 101 includes three voltage transformers, monitors and obtain the three-phase of distribution transformer respectively A phase, b phase, the voltage analog signal of c phase in circuit;
Described current detection module 102 includes the electricity being arranged on not isopen on described distribution transformer difference duplexure Current transformer, monitors and obtains the current analog signal of each duplexure of distribution transformer;
Described temperature sensor 103, obtains running temperature and the local environment temperature of described distribution transformer for measurement;
Wherein, described temperature sensor 103 includes pt100 temperature sensor, and its advantage is easy to make, using simple, And easily replace, in addition with the characteristic such as stability high sensitivity is good.According to the different connections of lead, two wires can be classified as System, three-wire system, the temperature sensor of four-wire system pt100, with the increase of line, its certainty of measurement can accordingly uprise, in the application In i.e. adopt the temperature sensor of four-wire system pt100.Because piezoelectric transformer running temperature should be measured, also ambient temperature to be surveyed, therefore need Put into two four-wire system pt100 temperature sensors.
Described vibrating sensor 104, obtains described distribution transformer device body frequency of vibration everywhere and amplitude for monitoring.
Wherein, vibrating sensor 104 includes three to six vibrating sensor yt-jb3, is respectively placed in distribution transformer and rises Everywhere, its vibrating sensor advantage is highly reliable to body, interference resistance is high, sensitivity height is adjustable, outward appearance is compact, Er Qiean Debug examination process of convenient, signal later stage simply, the frequency range of measurement is 0.04 1500hz.
Optionally, Fig. 2 is the signal acquisition module annexation figure of the embodiment of the present application, as shown in Fig. 2 described signal is adopted Collection module is made up of two acquisition chips, and one is electric energy measure chip 106, and one is capture card 107, wherein said voltage inspection Survey module 101, described current detection module 102, described temperature sensor 103 are connected with described electric energy measure chip 106, described It is connected to a signal conditioner 105 in the middle of vibrating sensor 104 and described capture card 107.
Electric energy measure chip 106 can be selected for electric energy measure chip cs5463, electric energy measure chip cs5463 have high accuracy, High performance-price ratio, characteristic low in energy consumption.The analogue signal transmitted for receiving voltage sensor, current sensor, temperature sensor, It is converted into corresponding digital signal again.Its cs5463 chip comprises two-way and above analog digital conversion passage, in the application Using the cs5463 of three analog digital conversion passages, correspond respectively to connecing of voltage transformer, current transformer and temperature sensor Enter, thus ensure that the synchronicity to the sampling of three analogue signals, it is to avoid the electricity leading to because of some sampled value sampling delay The delay of net load parameter or temperature rise calculating and mistake.Wherein, network load parameter includes voltage, electric current, active power, idle Power, apparent energy etc..
Capture card 107 can be selected for pc104 capture card, and pc104 capture card is formed by pinhole arrangement stacking by multiple modules, The system structure being formed is compact, and its advantage has shock resistance good, low in energy consumption, high precision, for the collection of vibration information, is one Individual good selection.After the interference factors such as the noise in the vibration signal collecting are filtered out by signal conditioner 105, then by its Send pc104 capture card to.
Optionally, the microcontroller 108 being connected with signal acquisition module, at each digital signal collected Reason, thus obtain the network load parameter of each phase line of each duplexure of distribution transformer of reality, ambient temperature, distribution Transformer station high-voltage side bus temperature and frequency of vibration and amplitude situation, described microcontroller 108 can be selected for stm32f103 single-chip microcomputer, belongs to In 32 arm microcontrollers of low and middle-end, its advantage is that the speed of service is fast, cost performance is high, configuration is abundant flexibly, power consumption is low.
Optionally, described communication module 109 is specifically for by every phase network load of each for distribution transformer duplexure Parameter, actual environment temperature value, actual motion temperature value and actual vibration frequency and amplitude are delivered to terminal system.
Optionally, described memory module 110 is born specifically for the every phase electrical network storing each duplexure of distribution transformer Lotus parameter, actual environment temperature value, actual motion temperature value and actual vibration frequency and amplitude.
Optionally, described operation module 111, operation distribution transformer monitoring running state device operating condition, when send out When existing distribution transformer has abnormal parameters when running, make corresponding operation in time and abnormal resulties are fed back to described microcontroller Device.
Integrated treatment is carried out to the output signal of voltage, current detecting unit by intelligence sample module, obtains each point The network load digital signal of each phase line of Zhi Huilu;By processing to the output signal of temperature sensor 103, obtain Running temperature digital signal and ambient temperature digital signal;By to the output signal of vibrating sensor 104 through signal conditioner Except being processed after the noises such as denoising, obtain transformer body frequency of vibration and amplitude digital signal.Then by these numerals Signal all sends microcontroller 108 to, after microcontroller 108 reads these digital signals, is converted into corresponding actual value. Above-mentioned signal transmission can be diagnosed distribution transformer itself by device body Vibration Condition to communication unit and have or not by microcontroller 108 Internal security problem, need not rely on patrol officer scene to carry out checking the running status that just can learn distribution transformer, Neng Goushi When detection distribution transformer running status, malfunction elimination can be carried out the very first time and feed back to terminal, monitoring personnel is passed through Analyze each branch actual electric network load parameter, thus calculating the electric load that each bar branch road is carried;By the reality obtaining With this, running temperature and ambient temperature, thus calculating temperature difference, judge whether distribution transformer temperature rise goes beyond the scope;By obtaining Distribution transformer frequency of vibration and amplitude, terminal use wavelet algorithm extract vibration signal characteristics, shaking different frequency range Dynamic signal constitutes a characteristic vector by wavelet transformation, then obtains each frequency range energy using support vector machine (svm) algorithm Measure corresponding weight, as the foundation of transformer body whether fault.
When monitoring personnel finds that the distribution of distribution transformer institute carry load is seriously uneven, should cut away in time and be carried Unnecessary load, is allowed to maintain balance as far as possible;When finding that temperature rise exceeds normal range, should be by operating unit to distribution transformer Operating condition regulated and controled;When finding frequency of vibration or amplitude not in normal range it may be possible to distribution transformer because long when Between work and cause device body that crackle occurs, or distribution transformer iron core or winding occur deformation, displacement, loosen caused by, can Go before sending staff to detect concrete fault.And a specialist system can be formed by the failure logging occurring in memory element, Occurs being used as reference after convenient during similar fault.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Specific case used herein is set forth to the principle of the present invention and embodiment, the saying of above example Bright it is only intended to help and understands the method for the present invention and its core concept;Simultaneously for one of ordinary skill in the art, foundation The thought of the present invention, all will change in specific embodiments and applications.In sum, this specification content is not It is interpreted as limitation of the present invention.

Claims (6)

1. a kind of distribution transformer monitoring running state device is it is characterised in that include voltage detection module, current detecting mould Block, temperature sensor, vibrating sensor, signal acquisition module, microcontroller, communication module, memory module and operation module, its In, described voltage detection module, described current detection module, described temperature sensor and described vibrating sensor respectively with described Signal acquisition module is connected, and described signal acquisition module is connected with microcontroller, described microcontroller and described communication module, institute State memory module to be connected with described operation module;
Described voltage detection module includes three voltage transformers, monitors and obtain a in the three-phase circuit of distribution transformer respectively Phase, b phase, the voltage analog signal of c phase;
Described current detection module includes the Current Mutual Inductance being arranged on not isopen on described distribution transformer difference duplexure Device, monitors and obtains the current analog signal of each duplexure of distribution transformer;
Described temperature sensor, obtains running temperature and the local environment temperature of described distribution transformer for measurement;
Described vibrating sensor, obtains described distribution transformer device body frequency of vibration everywhere and amplitude for monitoring.
2. device according to claim 1 is it is characterised in that described signal acquisition module is made up of two acquisition chips, One is electric energy measure chip, and one is capture card, wherein said voltage detection module, described current detection module, described temperature Degree sensor is connected with described electric energy measure chip, is connected to a signal and adjusts in the middle of described vibrating sensor and described capture card Reason device.
3. device according to claim 1 is it is characterised in that described microcontroller is stm32f103 single-chip microcomputer.
4. device according to claim 1 is it is characterised in that described communication module is specifically for each by distribution transformer Every phase network load parameter of duplexure, actual environment temperature value, actual motion temperature value and actual vibration frequency and width Value is delivered to terminal system.
5. device according to claim 1 is it is characterised in that described memory module is every specifically for storage distribution transformer Every phase network load parameter of one duplexure, actual environment temperature value, actual motion temperature value and actual vibration frequency with Amplitude.
6. device according to claim 1, it is characterised in that described operation module, operates distribution transformer running status The operating condition of monitoring device, when finding that distribution transformer has abnormal parameters when running, making corresponding operation in time will be different Often result feeds back to described microcontroller.
CN201620666159.1U 2016-06-29 2016-06-29 Distribution transformer running state's monitoring devices Active CN205910269U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108020737A (en) * 2017-11-17 2018-05-11 国网浙江省电力公司 A kind of distribution line monitoring method
CN108414077A (en) * 2018-02-06 2018-08-17 武汉理工大学 One kind detecting alarm system based on monolithic processor controlled transformer noise
CN108802553A (en) * 2018-06-12 2018-11-13 广州供电局有限公司 A kind of transformer winding fault state system of condition monitoring
CN109444576A (en) * 2018-10-24 2019-03-08 国网河南省电力公司濮阳供电公司 A kind of more transformer operation state monitoring devices

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108020737A (en) * 2017-11-17 2018-05-11 国网浙江省电力公司 A kind of distribution line monitoring method
CN108414077A (en) * 2018-02-06 2018-08-17 武汉理工大学 One kind detecting alarm system based on monolithic processor controlled transformer noise
CN108802553A (en) * 2018-06-12 2018-11-13 广州供电局有限公司 A kind of transformer winding fault state system of condition monitoring
CN109444576A (en) * 2018-10-24 2019-03-08 国网河南省电力公司濮阳供电公司 A kind of more transformer operation state monitoring devices

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