CN109580084A - The vacuum degree data of vacuum switch acquire monitoring device - Google Patents
The vacuum degree data of vacuum switch acquire monitoring device Download PDFInfo
- Publication number
- CN109580084A CN109580084A CN201710906651.0A CN201710906651A CN109580084A CN 109580084 A CN109580084 A CN 109580084A CN 201710906651 A CN201710906651 A CN 201710906651A CN 109580084 A CN109580084 A CN 109580084A
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- China
- Prior art keywords
- vacuum
- vacuum degree
- data
- signal processor
- vacuum switch
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of vacuum degree data of vacuum switch acquisition monitoring devices, including arc-chutes, several groups vacuum switch, several current sensors, analog-digital converter, amplifier, filter and signal processor etc..A kind of vacuum degree data of vacuum switch provided by the invention acquire monitoring device, by the electric signal for detecting shielding case using sensor, using the value for being handled, being analyzed and being compared to determine arc-chutes vacuum degree is sent in signal processor after filtering, amplification, the relation curve between Shielding tensor and vacuum degree is finally obtained.The size of its vacuum degree can be judged in the state of not turning off vacuum switch by this curved line relation, and then realizes the acquisition of real-time online data and monitoring of vacuum degree of vacuum switch.And data information can be sent to remote user by the wireless radio frequency modules that itself is integrated by signal processor, realize the long-range monitoring of information.
Description
Technical field
The present invention relates to data acquisition applications technical fields, acquire more particularly to a kind of vacuum degree data of vacuum switch
Monitoring device.
Background technique
In the modern life and industrial production, in occupation of very important status, it is computer and outside for data acquisition
The bridge of physical world connection.Collected data can be the various physical quantitys for being converted into electric signal, as temperature, water level,
Wind speed, pressure etc., can be analog quantity, be also possible to digital quantity.Acquisition is usually sample mode, i.e., every some cycles same point
Data duplication acquisition.The data of acquisition are instantaneous value mostly, can also be a characteristic value in certain time.Accurate data are surveyed
Amount is the basis of data acquisition.Data method for measurement has contact and contactless, and detecting element is varied.No matter which kind of side
Method and element, premised on not influencing measurand state and measurement environment, to guarantee the correctness of data.Data acquisition contains
Justice is very wide, including the acquisition to planar continuous physical quantity.In computer aided drawing, mapping, design, to figure or picture number
Word process is alternatively referred to as data acquisition, and collected is geometric sense data at this time.
In today of internet industry fast development, data acquisition has been widely used in internet and distributed neck
Domain, data collecting field have occurred that important variation.
With the development of China's electric system, reforming without oil and power equipment manufacturing technology, the use of vacuum switch
Also just more universal and promote, vacuum switch has that small in size, environmental pollution is small, arc extinction performance is good, operation and maintenance are easy, reliable
Property it is high, mechanically and electrically the service life is long the advantages that.Vacuum switch is the breaker using vacuum as insulation and arc extinguishing means, and vacuum degree is straight
The performance for influencing vacuum switch is connect, the vacuum switch accident overwhelming majority causes because of vacuum leak.So need to vacuum switch into
Row periodically or non-periodically vacuum-degree monitoring finds failure tendency to the safety of vacuum switch or even entire electric system and can in time
It is all of great significance by operation.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of vacuum degree of vacuum switch
Data acquire monitoring device, by using sensor detect shielding case electric signal, using filtering, amplification after be sent at signal
Handled, analyzed and compared value to determine arc-chutes vacuum degree in reason device, finally obtain Shielding tensor and vacuum degree it
Between relation curve.The size of its vacuum degree can be judged in the state of not turning off vacuum switch by this curved line relation,
And then realize the acquisition of real-time online data and monitoring of vacuum degree of vacuum switch.And signal processor can pass through itself integrated nothing
Data information is sent to remote user by line radio-frequency module, realizes the long-range monitoring of information.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of vacuum degree data acquisition monitoring device of vacuum switch, it is characterised in that: including arc-chutes, several groups vacuum
Switch, several current sensors, analog-digital converter, amplifier, filter and signal processor, the vacuum switch, which is set to, to go out
In arc chamber, current sensor is used to acquire the indoor leakage current of arc extinguishing, and by leakage current signal successively through analog-digital converter, amplification
Device and filter carry out data prediction, are then fed into signal processor, and signal processor includes data acquisition module, at threshold value
Module, data disaply moudle and data remote transmission module are managed, signal processor by pretreated data for that will carry out
Depth analysis, and will analysis as the result is shown and remote transmission.
Preferably, shielding case is arranged in the arc-chutes, current sensor is used to detect the direct current charge on shielding case, letter
Number processor pretreated judges the indoor vacuum degree of arc extinguishing in current data according to analyzing.
Preferably, the amplifier uses isolated amplifier, processing is carried out to collected electric signal and believes output
It number adjusts in the range of can sample and input stage is completely isolated with rear class.
Preferably, vacuum degree and DC potential on shielding case have corresponding relationship in the arc-chutes, work as arc-chutes
For interior vacuum degree in critical vacuum degree or more, the potential change of vacuum interrupter shielding case is small, and vacuum degree reduces, on shielding case
Current potential can correspondingly decline.
Preferably, touch screen, operation display interface on touch screen is arranged in the signal processor.
The utility model has the advantages that a kind of vacuum degree data of vacuum switch provided by the invention acquire monitoring device, by utilizing biography
Sensor detects the electric signal of shielding case, comes using being sent in signal processor to be handled, analyzed and compared after filtering, amplification
It determines the value of arc-chutes vacuum degree, finally obtains the relation curve between Shielding tensor and vacuum degree.It is closed by this curve
System can judge the size of its vacuum degree in the state of not turning off vacuum switch, and then realize the real-time of vacuum degree of vacuum switch
On-line data acquisition and monitoring.And data information can be sent to far by signal processor by the wireless radio frequency modules that itself is integrated
Journey user realizes the long-range monitoring of information.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a preferred embodiment of the present invention.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
With the development of China's electric system, reforming without oil and power equipment manufacturing technology, the use of vacuum switch
Also just more universal and promote, vacuum switch has that small in size, environmental pollution is small, arc extinction performance is good, operation and maintenance are easy, reliable
Property it is high, mechanically and electrically the service life is long the advantages that.Vacuum switch is the breaker using vacuum as insulation and arc extinguishing means, and vacuum degree is straight
The performance for influencing vacuum switch is connect, the vacuum switch accident overwhelming majority causes because of vacuum leak.So need to vacuum switch into
Row periodically or non-periodically vacuum-degree monitoring finds failure tendency to the safety of vacuum switch or even entire electric system and can in time
It is all of great significance by operation.
In vacuum switch work, the current potential on vacuum interrupter shielding case is by high-pressure section-shielding case, shielding
The partial pressure of possessed electrostatic capacitance determines respectively between cover-grounding electrode.Vacuum interrupter is only in normal operating voltage
When with operating normally under the vacuum state of standard, electrostatic charge will not be just had on arc-chutes shielding case；However work as vacuum interrupter
When vacuum degree is reduced to critical pressure, not only electric parameter is changed, and non-electrical parameter also has certain variation.Electrically joining
In the variation of amount, it will lead to and generate current signal between vacuum arc-extinguishing chamber contact and shielding case, also can on the shielding case of arc-chutes
Therefore certain electrostatic charge is generated, to form DC potential.The DC potential of shielding case can be sent out with the reduction of vacuum degree
Life correspondingly changes.The present invention is to monitor vacuum degree in arc-chutes by detecting the DC potential of shielding case.
It is true for a kind of vacuum degree data acquisition monitoring device of vacuum switch, including arc-chutes 1, several groups as shown in Figure 1
It is spaced apart pass 2, several current sensors 3, analog-digital converter 4, amplifier 5, filter 6 and signal processor 7, the vacuum switch
2 are set in arc-chutes 1, and current sensor 3 is used to acquire the leakage current in arc-chutes 1, and by leakage current signal successively through mould
Number converter 4, amplifier 5 and filter 6 carry out data prediction, are then fed into signal processor 7, signal processor 7 includes
Data acquisition module 71, threshold process module 72, data disaply moudle 73 and data remote transmission module 74, signal processor 7
Carry out depth analysis for pretreated data will to be passed through, and will analysis as the result is shown and remote transmission.
In the present invention, shielding case 11 is arranged in arc-chutes 1, and current sensor 3 is used to detect the direct current charge on shielding case 11,
Signal processor 7 is according to analyzing the pretreated vacuum degree judged in current data in arc-chutes 1.
As a preference of the present invention, amplifier using isolated amplifier, carries out processing to collected electric signal and will be defeated
Signal is adjusted in the range of can sample and input stage is completely isolated with rear class out.
In the present invention, vacuum degree has corresponding relationship with DC potential on shielding case in arc-chutes, when arc extinguishing is indoor
For vacuum degree in critical vacuum degree or more, the potential change of vacuum interrupter shielding case is small, and vacuum degree reduces, the electricity on shielding case
Position can correspondingly decline.
As it is of the invention it is another preferably, touch screen, operation display interface on touch screen is arranged in signal processor.
The present invention is monitored on-line and is transmitted wirelessly to vacuum degree of vacuum switch, right in the case where not power cutoff
The indoor vacuum degree of vacuum switch arc extinguishing is monitored, and the running indoor vacuum degree of vacuum switch arc extinguishing is changing
When, electric discharge phenomena can be generated between dynamic/static contact, electric discharge can launch electromagnetic impulse, Shielding tensor is caused to change,
There are certain relationships between the vacuum degree of arc-chutes for it, by this relationship it may determine that the size of vacuum degree.Pass through
Sensor detects Shielding tensor signal, after filtering, amplifier, then data are acquired by signal processor,
The value to determine vacuum degree in arc-chutes is handled, analyzed and compared, and is passed through information wirelessly by its included radio-frequency module
It is sent to PC or remote user, realizes the real-time monitoring of vacuum degree.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of vacuum degree data of vacuum switch acquire monitoring device, it is characterised in that: opened including arc-chutes, several groups vacuum
Pass, several current sensors, analog-digital converter, amplifier, filter and signal processor, the vacuum switch are set to arc extinguishing
Interior, current sensor are used to acquire the indoor leakage current of arc extinguishing, and by leakage current signal successively through analog-digital converter, amplifier
Data prediction is carried out with filter, is then fed into signal processor, signal processor includes data acquisition module, threshold process
Module, data disaply moudle and data remote transmission module, signal processor are deep for that will carry out by pretreated data
Degree analysis, and will analysis as the result is shown and remote transmission.
2. a kind of vacuum degree data of vacuum switch according to claim 1 acquire monitoring device, it is characterised in that: described
Shielding case is arranged in arc-chutes, and current sensor is used to detect the direct current charge on shielding case, and signal processor is according to the pre- place of analysis
The indoor vacuum degree of arc extinguishing is judged in current data after reason.
3. a kind of vacuum degree data of vacuum switch according to claim 1 acquire monitoring device, it is characterised in that: described
Amplifier uses isolated amplifier, handle and adjust output signal to the range that can be sampled to collected electric signal
It is interior and input stage is completely isolated with rear class.
4. a kind of vacuum degree data of vacuum switch according to claim 1 acquire monitoring device, it is characterised in that: described
Vacuum degree has corresponding relationship with DC potential on shielding case in arc-chutes, when the indoor vacuum degree of arc extinguishing is in critical vacuum degree
When above, the potential change of vacuum interrupter shielding case is small, and vacuum degree reduces, and the current potential on shielding case can correspondingly decline.
5. a kind of vacuum degree data of vacuum switch according to claim 1 acquire monitoring device, it is characterised in that: described
Touch screen, operation display interface on touch screen is arranged in signal processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906651.0A CN109580084A (en) | 2017-09-29 | 2017-09-29 | The vacuum degree data of vacuum switch acquire monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906651.0A CN109580084A (en) | 2017-09-29 | 2017-09-29 | The vacuum degree data of vacuum switch acquire monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109580084A true CN109580084A (en) | 2019-04-05 |
Family
ID=65914379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710906651.0A Withdrawn CN109580084A (en) | 2017-09-29 | 2017-09-29 | The vacuum degree data of vacuum switch acquire monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109580084A (en) |
-
2017
- 2017-09-29 CN CN201710906651.0A patent/CN109580084A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190405 |
|
| WW01 | Invention patent application withdrawn after publication |