CN205581227U - Equipment running state on -line monitoring device - Google Patents
Equipment running state on -line monitoring device Download PDFInfo
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- CN205581227U CN205581227U CN201620176702.XU CN201620176702U CN205581227U CN 205581227 U CN205581227 U CN 205581227U CN 201620176702 U CN201620176702 U CN 201620176702U CN 205581227 U CN205581227 U CN 205581227U
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Abstract
The utility model discloses an equipment running state on -line monitoring device, include: single chip microcomputer, current -voltage measured module, wireless temperature measured module, protector action logging module and report an emergency and ask for help or increased vigilance the module, current -voltage measured module includes: active current sensor, current mode voltage transformer and electric energy chip, wireless temperature measured module includes: transmitting element and receiving element, the protector action logging module include: pulse signal acquisition unit and optoelectronic coupler, single chip microcomputer includes: electric current virtual value reading unit, be used for calculating whether more than or equal to setting value calculating unit, voltage failure diagnosis unit, temperature threshold value module relatively of electric current virtual value. Can be before equipment breaks down the timely source reason scheme of doing during with the trouble, improved experimental authenticity and validity greatly, help in time discovering latent defect of power equipment and trouble.
Description
Technical field
This utility model belongs to electricity Digital data processing error detection, error correction and the technical field of monitoring, particularly relates to a kind of equipment running status on-Line Monitor Device.
Background technology
In enterprise, the maintenance and repair of power equipment from initial " be broken and just repair " to the time-based maintenance mode periodically carrying out preventive trial, for many years, regularly maintenance serves the most positive effect in equipment Management in Enterprise, but its limitation is also clearly:
1, periodic maintenance system has interrupted production process, can bring direct or indirect economic loss to enterprise；
2, periodic maintenance system, at the moment interruption maintenance of some unnecessary maintenance, can cause the waste of manpower and materials；
3, the preventive trial that periodic maintenance system is carried out is typically all the checking experiment carried out under power failure off-line state, and heat effect, electromagnetic action etc. produced by equipment running status all cannot reproduce under off-line state.
The voltage that equipment of the more important thing is runs the most all is higher than applied voltage when preventive trial is carried out, so, its result of the test can only be reference, it is impossible to the electric insulation situation under true reflection equipment running status.So, if it is possible to the running state data of real-time measurement equipment, and by calculating, before equipment breaks down, provide preventative warning signal, it is possible to effectively evade impact and loss that the problems referred to above are brought.
Summary of the invention
In view of this, this utility model provides a kind of equipment running status on-Line Monitor Device, to solve due to the periodic inspection maintenance regime of current high-low pressure power equipment, it is impossible to the real-time running status understanding equipment, thus bring the technical problem of unnecessary impact and loss.In order to some aspects of the embodiment disclosed are had a basic understanding, shown below is simple summary.This summarized section is not extensive overview, is not key/critical component to be determined or the protection domain describing these embodiments.Its sole purpose is to present some concepts, in this, as the preamble of following detailed description by simple form.
This utility model adopts the following technical scheme that
In some optional embodiments; a kind of equipment running status on-Line Monitor Device is provided; including: one chip microcomputer; and be connected to the current-voltage measurement module of described one chip microcomputer input, wireless temperature measurement module and protector action record module, and it is connected to the alarm module of described one chip microcomputer outfan；
Described current-voltage measurement module includes: gather the active electric current sensor of high voltage power cable leakage current, collection high voltage potential transformer three-phase voltage and the current mode voltage transformer of open delta voltage and electric energy computation chip, described active electric current sensor and current mode voltage transformer are connected with the input of described electric energy computation chip；
Described wireless temperature measurement module includes: transmitting element and reception unit, described transmitting element is made up of temperature sensor, processing unit and wireless transmission unit, the data of described temperature sensor collection are obtained temperature value by after described processing unit processes, sending to receiving unit through described wireless transmission unit, described reception unit is connected to the input of described one chip microcomputer again；Described processing unit includes: computation subunit and gather the timing subelement of the most described temperature sensor resistance for controlling every 15 seconds of described computation subunit；
Described protector action record module includes: pulse signal acquisition unit and photoelectrical coupler, and described pulse signal acquisition unit is connected to the luminous source side of described photoelectrical coupler, and the light-receiving device of described photoelectrical coupler is connected with described one chip microcomputer；
Described one chip microcomputer includes: current effective value reads unit, whether is more than or equal to preset value calculation unit, voltage failure judging unit, temperature threshold comparing unit for calculating current virtual value.
In some optional embodiments, described equipment running status on-Line Monitor Device, also include: communication module, status information of equipment is sent to backstage host computer by described communication module.
In some optional embodiments, described electric energy computation chip is ATT7022E chip.
In some optional embodiments, described voltage failure judging unit judges system fault conditions by the concrete numerical value of high voltage potential transformer three-phase voltage and open delta voltage.
In some optional embodiments, the model of described temperature sensor is NTC10K, for gathering the temperature of feeder line overlapped points, described temperature sensor is connected with the input of described processing unit, and in the computation subunit extraction single-chip microcomputer memorizer of described processing unit, precalculated thermometer compares and calculates temperature value and send to described wireless transmission unit.
In some optional embodiments, described reception unit includes: for receiving the radio receiving unit of described temperature value.
In some optional embodiments, described equipment running status on-Line Monitor Device, also include: be connected to the display screen of described one chip microcomputer outfan.
The beneficial effect that this utility model is brought: by the insulated leakage current of real-time watch device, voltage pulsation situation, feeder line overlapped points temperature variations and the function of excess voltage protector action recording; just can observe the real time execution situation of high-low pressure power equipment very easily; can handle it timely before equipment breaks down and during fault scheme, the loss and the impact that fault are produced are minimized；On-line monitoring is a kind of non-destroyed measurement, carries out owing to measuring, substantially increase verity and the effectiveness of test, contribute to finding defect and the fault that power equipment is potential in time in equipment running process；Simple in construction easily operates, and reduces monitoring cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model equipment running status on-Line Monitor Device；
Fig. 2 is this utility model protector action record module principle figure.
Detailed description of the invention
The following description and drawings illustrate specific embodiments of the present invention fully, to enable those skilled in the art to put into practice them.Other embodiments can include structure, logic, electric, process and other change.Embodiment only represents possible change.Unless explicitly requested, otherwise individually components and functionality is optional, and the order operated can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.
In some illustrative embodiments; as shown in Figure 1; a kind of equipment running status on-Line Monitor Device is provided, including: current-voltage measurement module 1, wireless temperature measurement module 2, protector action record module 3, one chip microcomputer 4, alarm module 5, communication module 6 and be connected to the display screen 7 of one chip microcomputer 4 outfan.
Current-voltage measurement module 1, wireless temperature measurement module 2 and protector action record module 3 are connected to the input of one chip microcomputer 4; self is gathered and carries out the data transmission of preliminary treatment to one chip microcomputer 4; the built-in DSPIC33FJ128GP706 chip for Digital Signal Processing of one chip microcomputer 4; one chip microcomputer 4 receives data and processes, and to alarm module 5, result transmission is carried out early warning.
Alarm module 5 includes: display lamp and buzzer, after alarm module 5 receives signal, display lamp and buzzer are with alarm and alarm relay action, so that plant maintenance personnel understand cable run state of insulation in time, wireless temperature measuring function can help operations staff to understand switch contact temperature rise situation in time.
Wherein, one chip microcomputer 4 includes: current effective value reads unit 41, whether is more than or equal to preset value calculation unit 42, voltage failure judging unit 43, temperature threshold comparing unit 44 for calculating current virtual value.
Current-voltage measurement module 1 includes: active electric current sensor 11, current mode voltage transformer 12 and electric energy computation chip 13.Active electric current sensor 11 is for gathering the leakage current of high voltage power cable, current mode voltage transformer 12 is used for gathering high voltage potential transformer three-phase voltage and open delta voltage, active electric current sensor 11 and voltage transformer 12 and is connected with the input of electric energy computation chip 13.
In some illustrative embodiments, electric energy computation chip 13 is ATT7022E chip, running voltage 12V, current input signal is exchange 0-20mA, is output as exchanging 0-5V voltage, then corresponding for 1uA voltage is 5V/20mA=0.25mV, voltage signal is input to ATT7022E chip after electric resistance partial pressure when full scale, integrated 19 ADC of ATT7022E chip internal, internal reference voltage is 1.2V, and i.e. minimum identification voltage is 1.2V/219=0.0022mv, so can identify the 0.25mV signal of 1uA electric current completely.
Current effective value reads unit 41 and reads the virtual value data of electric energy computation chip 13, send and whether be more than or equal to preset value calculation unit 42 to for calculating current virtual value, user can set and organize setting value more, general setting value is the 30% of a certain fixed value, 60% and 90%, such as, if fixed value i.e. electric current alarm threshold is 1000uA, then corresponding warning signal is all had to produce when 300uA, 600uA, 900uA, alarm module 5 output screen warning signal and relay dry contact signal.
When equipment fault, the voltage pulsation of arbitrary phase all can cause high voltage potential transformer opening winding voltage not to be completely counterbalanced by and produce the output of opening voltage, voltage failure judging unit 43 judges system fault conditions by the concrete numerical value of high voltage potential transformer three-phase voltage and open delta voltage, i.e. judges that the change situation of three-phase voltage can judge equipment voltage failure situation with the not actuated condition of opening voltage.Such as, as three-phase voltage UA=0V, UB=57V, UC=57V, when open delta voltage is 30V, i.e. can determine that failure cause is that A phase breaks.And for example, as three-phase voltage UA=90V, UB＜ 8V, UC=90V, when open delta voltage is 90V, i.e. can determine that failure cause is B phase ground connection.And for example, as three-phase voltage UA=90V, UB=90V, UC>=8V, when open delta voltage is 90V, i.e. can determine that failure cause is C phase arc light.In addition, the criterion of Voltage unbalance be open delta voltage be 0V, three-phase voltage value difference more than 5V.Overvoltage criterion be open delta voltage be 0V, three-phase voltage is above more than 80V.
Wireless temperature measurement module 2 uses PTR600 wireless module, including transmitting element 21 and reception unit 22.
Transmitting element 21 is made up of temperature sensor 23, processing unit 24 and wireless transmission unit 25.The model of temperature sensor 23 is NTC10K, and for gathering the temperature of feeder line overlapped points, temperature sensor 23 is connected with the input of processing unit 24, the PIC16F690 single-chip microcomputer of processing unit 24 built-in process data.Processing unit 24 includes: computation subunit 27 and for controlling the timing subelement 28 that every 15 seconds of computation subunit 27 gathers the resistance of a temperature sensor 23.Computation subunit 27 is extracted thermometer precalculated in single-chip microcomputer memorizer and is compared and calculate temperature value and send to wireless transmission unit 25, temperature value is sent to the radio receiving unit 26 received in unit 22 by wireless transmission unit 25, and temperature value is sent to one chip microcomputer 4 by radio receiving unit 26 again.
Regularly subelement 28 controls the resistance of a computation subunit 27 timing temperature sensor 23 of collection in every 15 seconds, by house dog timing wake-up PIC16F690 single-chip microcomputer, and compared with thermometer that is precalculated and that be stored on single-chip microcomputer memorizer by processing unit 24 and calculate temperature value, then temperature value is write in the depositor of wireless transmission unit 25, then start wireless transmission unit 25 and send temperature value data.PIC16F690 Single-chip Controlling transmitting element 21 enters power-down state afterwards, and controlling temperature sensor 23 is power-down state, and then PIC16F690 single-chip microcomputer enters sleep state, completes once to gather transmission process, and so forth.
Receive unit 22 real time monitoring wireless data, use interrupt mode notice one chip microcomputer 4 to read wireless temperature data in time after receiving wireless data.Temperature value data are compared by temperature threshold comparing unit 44 with temperature over-range alarm threshold, there is provided screen alarm and relay dry contact warning signal when receiving the temperature value data exceeding temperature over-range alarm threshold, one chip microcomputer 4 demonstrates numbering and temperature value according to the data received on display screen 7.
Excess voltage protector action recording function uses the mode of node collection to realize, and owing to overvoltage actuating signal is short time spikes pulse signal, can pass through the laggard light-coupled isolation of resistance current limliting, then be coupled to single-chip microcomputer judgement.Protector action record module 3 includes: pulse signal acquisition unit 31 and photoelectrical coupler UJ101, and pulse signal acquisition unit 31 is connected to the luminous source side of photoelectrical coupler UJ101, and the light-receiving device of photoelectrical coupler UJ101 is connected with one chip microcomputer 4.As shown in Figure 2, pulse signal negative half period of signal after A-N enters bridge rectifier D J101 is promoted to positive half cycle, again through resistance RJ102 electric resistance partial pressure, for the luminous tube side of photoelectrical coupler UJ101 after resistance RJ101 current limliting, the sensitive side of optocoupler senses that signal i.e. may be output to one chip microcomputer 4 and gathers.
In some illustrative embodiments, status information of equipment is sent to backstage host computer by communication module 6, realizes the data link between device and backstage host computer.
Above-described embodiment is this utility model preferably embodiment; but embodiment of the present utility model is also not restricted to the described embodiments; other are any without departing from the change made under spirit of the present utility model and principle; modify; substitute, combination, simplify; all should be the substitute mode of equivalence, all should be included in protection domain of the present utility model.
Claims (7)
1. equipment running status on-Line Monitor Device; it is characterized in that; including: one chip microcomputer; and be connected to the current-voltage measurement module of described one chip microcomputer input, wireless temperature measurement module and protector action record module, and it is connected to the alarm module of described one chip microcomputer outfan；
Described current-voltage measurement module includes: gather the active electric current sensor of high voltage power cable leakage current, collection high voltage potential transformer three-phase voltage and the current mode voltage transformer of open delta voltage and electric energy computation chip, described active electric current sensor and current mode voltage transformer are connected with the input of described electric energy computation chip；
Described wireless temperature measurement module includes: transmitting element and reception unit, described transmitting element is made up of temperature sensor, processing unit and wireless transmission unit, the data of described temperature sensor collection are obtained temperature value by after described processing unit processes, sending to receiving unit through described wireless transmission unit, described reception unit is connected to the input of described one chip microcomputer again；Described processing unit includes: computation subunit and gather the timing subelement of the most described temperature sensor resistance for controlling every 15 seconds of described computation subunit；
Described protector action record module includes: pulse signal acquisition unit and photoelectrical coupler, and described pulse signal acquisition unit is connected to the luminous source side of described photoelectrical coupler, and the light-receiving device of described photoelectrical coupler is connected with described one chip microcomputer；
Described one chip microcomputer includes: current effective value reads unit, whether is more than or equal to preset value calculation unit, voltage failure judging unit, temperature threshold comparing unit for calculating current virtual value.
Equipment running status on-Line Monitor Device the most according to claim 1, it is characterised in that also include: communication module, status information of equipment is sent to backstage host computer by described communication module.
Equipment running status on-Line Monitor Device the most according to claim 1, it is characterised in that described electric energy computation chip is ATT7022E chip.
Equipment running status on-Line Monitor Device the most according to claim 1, it is characterised in that described voltage failure judging unit judges system fault conditions by the concrete numerical value of high voltage potential transformer three-phase voltage and open delta voltage.
Equipment running status on-Line Monitor Device the most according to claim 1, it is characterized in that, the model of described temperature sensor is NTC10K, for gathering the temperature of feeder line overlapped points, described temperature sensor is connected with the input of described processing unit, and in the computation subunit extraction single-chip microcomputer memorizer of described processing unit, precalculated thermometer compares and calculates temperature value and send to described wireless transmission unit.
Equipment running status on-Line Monitor Device the most according to claim 5, it is characterised in that described reception unit includes: for receiving the radio receiving unit of described temperature value.
Equipment running status on-Line Monitor Device the most according to claim 1, it is characterised in that also include: be connected to the display screen of described one chip microcomputer outfan.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620176702.XU CN205581227U (en) | 2016-03-09 | 2016-03-09 | Equipment running state on -line monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620176702.XU CN205581227U (en) | 2016-03-09 | 2016-03-09 | Equipment running state on -line monitoring device |
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| CN205581227U true CN205581227U (en) | 2016-09-14 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520560A (en) * | 2018-10-01 | 2019-03-26 | 上海黄龙物联网科技有限公司 | Equipment state detecting method and system |
| CN116482466A (en) * | 2023-04-27 | 2023-07-25 | 国网湖南省电力有限公司湘西供电分公司 | On-line monitoring system and method for operation hidden trouble of distribution network equipment |
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2016
- 2016-03-09 CN CN201620176702.XU patent/CN205581227U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520560A (en) * | 2018-10-01 | 2019-03-26 | 上海黄龙物联网科技有限公司 | Equipment state detecting method and system |
| CN116482466A (en) * | 2023-04-27 | 2023-07-25 | 国网湖南省电力有限公司湘西供电分公司 | On-line monitoring system and method for operation hidden trouble of distribution network equipment |
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