CN105699863A - An electric insulating performance detection system - Google Patents
An electric insulating performance detection system Download PDFInfo
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- CN105699863A CN105699863A CN201610052024.0A CN201610052024A CN105699863A CN 105699863 A CN105699863 A CN 105699863A CN 201610052024 A CN201610052024 A CN 201610052024A CN 105699863 A CN105699863 A CN 105699863A
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- 238000001514 detection method Methods 0.000 title abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims description 16
- 230000000052 comparative effect Effects 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 12
- 238000012360 testing method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims 1
- 230000003750 conditioning effect Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Relating To Insulation (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The invention relates to an electric insulating performance detection system comprising a detection apparatus used for detecting leakage currents of electrical equipment and sending the leakage currents to a reservoir, a reservoir used for storing all the current signals measured by the detection apparatus, an acquisition apparatus used for acquiring environmental parameters surrounding the electric equipment and sending the acquired surrounding electric charge amount signals to a signal conditioning unit, a signal conditioning unit used for carrying out low-pass filtering on the surrounding electric charge amount signals, amplifying the signal in proportion into singles which is in a current scope suitable for A/D conversion and sending the amplified current signals to a waveform A/D acquisition unit, a waveform A/D acquisition unit used for acquiring waveforms of the amplified current signals and sending the waveforms to a microprocessor; a microprocessor used for sending results of comparison to a terminal display and sending control signals to an alarm device when the results of comparison are higher than preset values, a terminal display used for displaying the results of comparison and the alarm apparatus used for emitting alarms. The detection system of the invention is high in precision and is convenient and reliable.
Description
Technical field
The present invention relates to electric insulation performance detection technique field, be specifically related to a kind of for electric insulation performance detecting system。
Background technology
In power system, insulating properties index is the healthy leading indicator run of power equipment。Substantial amounts of high-tension insulator, spark gap, voltage transformer etc. are all adopt this index as the basis for estimation of power equipment。The safety how improving power equipment is the vital link of power system power supply guaranteed reliability。All put into very big financial resources and the insulating properties protection of energy research power equipment both at home and abroad。Therefore, how realizing Electric Power Equipment Insulation is one, electrical network power supply technique field problem demanding prompt solution。
Summary of the invention
The technical problem to be solved is for prior art Problems existing, it is provided that a kind of electric insulation performance detecting system。
The technical scheme is that a kind of electric insulation performance detecting system, including:
Detecting device, for detect power equipment leakage total current, reveal circuital 1/2, reveal circuital 1/4, reveal circuital 1/8 ..., reveal circuital 1/n transmission to bin；
Bin, for storing whole current signals that detecting device measurement obtains；
Harvester, for gathering the temperature parameter of power equipment, humidity parameter, dust concentration parameter, vibration frequency and the surrounding quantity of electric charge, and sends surrounding's quantity of electric charge signal of the power equipment collected to signal condition unit；
Signal condition unit, for quantity of electric charge signal around carrying out low-pass filtering and scaling to the current range being adapted to A/D conversion, and sends the current signal amplified to waveform A/D collecting unit；
Waveform A/D collecting unit, for gathering the waveform of the current signal of amplification and sending to microprocessor；
Microprocessor, for receiving the waveform of the current signal that waveform A/D collecting unit sends and calculating collection waveform frequency, it is additionally operable to the whole current signals transferring in bin the waveform frequency calculating each current signal, and compare gathering the waveform frequency waveform frequency with each current signal in memorizer, and comparative result is sent to terminal display, when comparative result is higher than preset value, send a control signal to alarm device；Described microprocessor is additionally operable to compare temperature parameter, humidity parameter, dust concentration parameter and vibration frequency and parameter preset, and sends comparative result to terminal display, when comparative result is higher than preset value, sends a control signal to alarm device；
Terminal display, is used for showing comparative result；
Alarm device, is used for receiving control signal and sending alarm。
The invention has the beneficial effects as follows: the present invention is by arranging detecting device, harvester, signal condition unit, waveform conditioning unit, terminal display and alarm device, the insulating properties of power equipment can be detected by the humiture of power equipment surrounding, dust concentration, current waveform and alarm device, accuracy of detection is high, and convenient and reliable。
On the basis of technique scheme, the present invention can also do following improvement。
Further, described harvester includes:
Temperature sensor, for gathering the ambient temperature apart from described power equipment 0mm-20mm position；
Humidity sensor, for gathering the ambient humidity apart from described power equipment 0mm-20mm position；
Vibration test instrument, for testing the vibrations parameter of described power equipment；
Current transformer, for gathering the circulation information of described power equipment；
Dust Testing Instrument, for gathering the dust concentration apart from described power equipment 0mm-20mm position。
Further, described alarm device is any one in audible alarm unit, light alarm device and acoustic-optic alarm。
Further, described signal condition unit adopts rail-to-rail operation amplifier OPA2350。
Further, described waveform A/D collecting unit adopts ADS7818 chip。
Further, described microprocessor adopts the LPC2136 based on ABM7TDMI kernel, and in microprocessor, CPU operating frequency is 55.296MHz；LPC2136 controls ADS7818 constant duration by intervalometer coupling output pin and starts conversion。
Accompanying drawing explanation
Fig. 1 is the connection block diagram of present system。
Detailed description of the invention
Below in conjunction with accompanying drawing, principles of the invention and feature being described, example is served only for explaining the present invention, is not intended to limit the scope of the present invention。
As it is shown in figure 1, a kind of electric insulation performance detecting system of the present embodiment includes:
Detecting device, for detect power equipment leakage total current, reveal circuital 1/2, reveal circuital 1/4, reveal circuital 1/8 ..., reveal circuital 1/n transmission to bin；
Bin, for storing whole current signals that detecting device measurement obtains；
Harvester, for gathering the temperature parameter of power equipment, humidity parameter, dust concentration parameter, vibration frequency and the surrounding quantity of electric charge, and sends surrounding's quantity of electric charge signal of the power equipment collected to signal condition unit；
Signal condition unit, for quantity of electric charge signal around carrying out low-pass filtering and scaling to the current range being adapted to A/D conversion, and sends the current signal amplified to waveform A/D collecting unit；Described signal condition unit adopts rail-to-rail operation amplifier OPA2350；
Waveform A/D collecting unit, for gathering the waveform of the current signal of amplification and sending to microprocessor；Described waveform A/D collecting unit adopts ADS7818 chip；
Microprocessor, for receiving the waveform of the current signal that waveform A/D collecting unit sends and calculating collection waveform frequency, it is additionally operable to the whole current signals transferring in bin the waveform frequency calculating each current signal, and compare gathering the waveform frequency waveform frequency with each current signal in memorizer, and comparative result is sent to terminal display, when comparative result is higher than preset value, send a control signal to alarm device；Described microprocessor is additionally operable to compare temperature parameter, humidity parameter, dust concentration parameter and vibration frequency and parameter preset, and sends comparative result to terminal display, when comparative result is higher than preset value, sends a control signal to alarm device；Temperature parameter, humidity parameter, dust concentration parameter and vibration frequency can judge for inspection personnel as auxiliary Testing index；
Terminal display, is used for showing comparative result；
Alarm device, is used for receiving control signal and sending alarm, and described alarm device is any one in audible alarm unit, light alarm device and acoustic-optic alarm。
The present invention is by arranging detecting device, harvester, signal condition unit, waveform conditioning unit, terminal display and alarm device, the insulating properties of power equipment can be detected by the humiture of power equipment surrounding, dust concentration, current waveform and alarm device, accuracy of detection is high, and convenient and reliable。
Described harvester includes:
Temperature sensor, for gathering the ambient temperature apart from described power equipment 0mm-20mm position；
Humidity sensor, for gathering the ambient humidity apart from described power equipment 0mm-20mm position；
Vibration test instrument, for testing the vibrations parameter of described power equipment；
Current transformer, for gathering the circulation information of described power equipment；
Dust Testing Instrument, for gathering the dust concentration apart from described power equipment 0mm-20mm position。
The microprocessor of the present embodiment adopts the LPC2136 based on ABM7TDMI kernel, and in microprocessor, CPU operating frequency is 55.296MHz；LPC2136 controls ADS7818 constant duration by intervalometer coupling output pin and starts conversion。
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention。
Claims (6)
1. an electric insulation performance detecting system, it is characterised in that including:
Detecting device, for detect power equipment leakage total current, reveal circuital 1/2, reveal circuital 1/4, reveal circuital 1/8 ..., reveal circuital 1/n transmission to bin；
Bin, for storing whole current signals that detecting device measurement obtains；
Harvester, for gathering the temperature parameter of power equipment, humidity parameter, dust concentration parameter, vibration frequency and the surrounding quantity of electric charge, and surrounding's quantity of electric charge signal of the power equipment collected is sent to signal condition unit, the temperature parameter collected, humidity parameter, dust concentration parameter, vibration frequency are sent to microprocessor simultaneously；
Signal condition unit, for quantity of electric charge signal around carrying out low-pass filtering and scaling to the current range being adapted to A/D conversion, and sends the current signal amplified to waveform A/D collecting unit；
Waveform A/D collecting unit, for gathering the waveform of the current signal of amplification and sending to microprocessor；
Microprocessor, for receiving the waveform of the current signal that waveform A/D collecting unit sends and calculating collection waveform frequency, it is additionally operable to the whole current signals transferring in bin the waveform frequency calculating each current signal, and compare gathering the waveform frequency waveform frequency with each current signal in memorizer, and comparative result is sent to terminal display, when comparative result is higher than preset value, send a control signal to alarm device；Described microprocessor is additionally operable to compare temperature parameter, humidity parameter, dust concentration parameter and vibration frequency and parameter preset, and sends comparative result to terminal display, when comparative result is higher than preset value, sends a control signal to alarm device；
Terminal display, is used for showing comparative result；
Alarm device, is used for receiving control signal and sending alarm。
2. a kind of electric insulation performance detecting system according to claim 1, it is characterised in that described harvester includes:
Temperature sensor, for gathering the ambient temperature apart from described power equipment 0mm-20mm position；
Humidity sensor, for gathering the ambient humidity apart from described power equipment 0mm-20mm position；
Vibration test instrument, for testing the vibrations parameter of described power equipment；
Current transformer, for gathering the circulation information of described power equipment；
Dust Testing Instrument, for gathering the dust concentration apart from described power equipment 0mm-20mm position。
3. a kind of electric insulation performance detecting system according to claim 1 or claim 2, it is characterised in that described alarm device is any one in audible alarm unit, light alarm device and acoustic-optic alarm。
4. a kind of for electric power edge performance detecting system according to claim 1, it is characterised in that described signal condition unit adopts rail-to-rail operation amplifier OPA2350。
5. a kind of for electric insulation performance detecting system according to claim 1, it is characterised in that described waveform A/D collecting unit adopts ADS7818 chip。
6. a kind of for electric insulation performance detecting system according to claim 1, it is characterized in that, described microprocessor adopts the LPC2136 based on ABM7TDMI kernel, in microprocessor, CPU operating frequency is that 55.296MHz, LPC2136 start conversion by intervalometer coupling output pin control ADS78181 constant duration and catch, by the loading automatically of intervalometer, the control that input pin accepts the signal of wireless module synchronized transmission。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610052024.0A CN105699863A (en) | 2016-01-27 | 2016-01-27 | An electric insulating performance detection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610052024.0A CN105699863A (en) | 2016-01-27 | 2016-01-27 | An electric insulating performance detection system |
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| CN105699863A true CN105699863A (en) | 2016-06-22 |
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| CN201610052024.0A Pending CN105699863A (en) | 2016-01-27 | 2016-01-27 | An electric insulating performance detection system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029946A (en) * | 2018-06-28 | 2018-12-18 | 联合汽车电子有限公司 | Motor stator durability test apparatus and test method |
| CN115493645A (en) * | 2022-09-20 | 2022-12-20 | 浙江康锐电气工程有限公司 | A method and device for monitoring the running state of a PLC control cabinet |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900780A (en) * | 2010-04-20 | 2010-12-01 | 浙江科技学院 | A real-time detection system for partial discharge of switch cabinets in cabinet busbars |
| JP2013036884A (en) * | 2011-08-09 | 2013-02-21 | Fuji Electric Fa Components & Systems Co Ltd | Insulation monitoring method and insulation monitor |
| CN104267302A (en) * | 2014-09-02 | 2015-01-07 | 山东中泰阳光电气科技有限公司 | Online monitoring system based on tubular busbar |
| CN104459438A (en) * | 2014-12-05 | 2015-03-25 | 国网浙江奉化市供电公司 | Insulation performance detecting system for metal sheath of power cable |
-
2016
- 2016-01-27 CN CN201610052024.0A patent/CN105699863A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900780A (en) * | 2010-04-20 | 2010-12-01 | 浙江科技学院 | A real-time detection system for partial discharge of switch cabinets in cabinet busbars |
| JP2013036884A (en) * | 2011-08-09 | 2013-02-21 | Fuji Electric Fa Components & Systems Co Ltd | Insulation monitoring method and insulation monitor |
| CN104267302A (en) * | 2014-09-02 | 2015-01-07 | 山东中泰阳光电气科技有限公司 | Online monitoring system based on tubular busbar |
| CN104459438A (en) * | 2014-12-05 | 2015-03-25 | 国网浙江奉化市供电公司 | Insulation performance detecting system for metal sheath of power cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109029946A (en) * | 2018-06-28 | 2018-12-18 | 联合汽车电子有限公司 | Motor stator durability test apparatus and test method |
| CN115493645A (en) * | 2022-09-20 | 2022-12-20 | 浙江康锐电气工程有限公司 | A method and device for monitoring the running state of a PLC control cabinet |
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Application publication date: 20160622 |