CN209148863U - A kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition - Google Patents
A kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition Download PDFInfo
- Publication number
- CN209148863U CN209148863U CN201821357954.8U CN201821357954U CN209148863U CN 209148863 U CN209148863 U CN 209148863U CN 201821357954 U CN201821357954 U CN 201821357954U CN 209148863 U CN209148863 U CN 209148863U
- Authority
- CN
- China
- Prior art keywords
- unit
- capacitance type
- type potential
- potential transformer
- measuring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005611 electricity Effects 0.000 title claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 12
- 230000003750 conditioning effect Effects 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 230000003321 amplification Effects 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 9
- 230000006837 decompression Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
Abstract
The utility model provides a kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition, and the measuring device with electricity includes signal acquisition unit, signal conditioning unit, A/D converting unit, central control processing unit, storage unit, display unit and key-press input unit；The measuring device with electricity acquires the relevant parameter when capacitance type potential transformer live line work, judge whether the capacitance type potential transformer work is normal after being calculated analytically, if faulty can issue alarm signal necessary measure so that relevant staff takes in time.The utility model provides a kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition, being capable of effective accurate detection voltage transformer Inside coil short trouble and dielectric loss state.
Description
Technical field
The utility model belongs to technical field of electric power detection, in particular to a kind of capacitive battery based on multi-signal acquisition
Press mutual inductor measuring device with electricity.
Background technique
With the continuous development of power technology, higher and higher, condenser type is required to the safety and reliability of electric system
Voltage transformer is one of the important equipment of protecting electrical power system and metrical information acquisition.As capacitance type potential transformer is in electricity
In Force system using more and more extensive, capacitance type potential transformer state-detection is also gradually paid attention to, at present to condenser type
The detection method of voltage transformer mainly has: interruption maintenance, equipment-patrolling, live detection and on-line monitoring.Existing band electric-examination
Survey method is mainly used for the fault detections such as shelf depreciation and temperature raising, cannot effective accurate detection voltage transformer inner wire
Enclose short trouble and dielectric loss state.
Utility model content
The utility model provides a kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition, can
Effective accurate detection voltage transformer Inside coil short trouble and dielectric loss state.
The utility model is specially a kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition, institute
Stating measuring device with electricity includes signal acquisition unit, signal conditioning unit, A/D converting unit, central control processing unit, storage
Unit, display unit and key-press input unit, the signal acquisition unit, the signal conditioning unit, the A/D converting unit
Be linked in sequence with the central control processing unit, the central control processing unit also respectively with the storage unit, described
Display unit is connected with the key-press input unit；The measuring device with electricity acquires the capacitance type potential transformer electrification
Relevant parameter when work judges whether the capacitance type potential transformer work is normal, if faulty after being calculated analytically
Alarm signal necessary measure so that relevant staff takes can be issued in time.
The key-press input unit completes the capacitance type potential transformer in conjunction with the storage unit, the display unit
The input of factory state parameter.
The signal acquisition unit mainly acquires capacitance type potential transformer primary side input voltage, secondary side output electricity
It presses, flow through capacitive divider electric current and flow through middle piezoelectricity magnetic cell electric current, the primary side input voltage is using decompression mutual inductor
Acquisition, the secondary side output voltage is directly acquired from the capacitance type potential transformer secondary side, described to flow through capacitance partial pressure
It device electric current and described flow through middle piezoelectricity magnetic cell electric current and is acquired using current transformer.
The signal conditioning unit includes signal amplification module and signal filter module, and the signal amplification module uses
AD706 operational amplifier can as needed be adjusted amplification factor；The filter module uses two-stage low-pass wave
Device effectively inhibits high-frequency harmonic, it is ensured that output signal meets the A/D converting unit working range by filtering twice.
The central control processing unit carries out analytical calculation to the signal of acquisition, and then judges that the capacitor voltage is mutual
Whether sensor breaks down:
If the secondary side output voltage becomes larger with the primary side input voltage ratio, the capacitor voltage mutual inductance
Breakdown or intermediate transformer primary coil partial short circuit failure occur for device high-voltage capacitance unit；
If the secondary side output voltage becomes smaller with the primary side input voltage ratio, the capacitor voltage mutual inductance
Breakdown or the intermediate transformer secondary coil partial short circuit failure occur for voltage capacitance unit in device；
If the secondary side output voltage and the primary side input voltage phase angle difference become smaller or described flow through capacitance partial pressure
Device electric current and it is described flow through middle piezoelectricity magnetic cell current ratio and become smaller, then dielectric loss occurs for the capacitance type potential transformer.
Detailed description of the invention
Fig. 1 is a kind of knot of the capacitance type potential transformer measuring device with electricity based on multi-signal acquisition of the utility model
Structure schematic diagram.
Specific embodiment
The capacitance type potential transformer band electric-examination based on multi-signal acquisition a kind of to the utility model with reference to the accompanying drawing
The specific embodiment for surveying device elaborates.
As shown in Figure 1, the measuring device with electricity of the utility model includes signal acquisition unit, signal conditioning unit, A/D turns
Change unit, central control processing unit, storage unit, display unit and key-press input unit, it is the signal acquisition unit, described
Signal conditioning unit, the A/D converting unit and the central control processing unit are linked in sequence, and the center control processing is single
Member is also connected with the storage unit, the display unit and the key-press input unit respectively；The measuring device with electricity
The relevant parameter when capacitance type potential transformer live line work is acquired, the capacitor voltage is judged after being calculated analytically
Whether mutual inductor work is normal, can issue that alarm signal is necessary so that relevant staff takes to arrange in time if faulty
It applies.
The key-press input unit completes the capacitance type potential transformer in conjunction with the storage unit, the display unit
The input of factory state parameter.
The signal acquisition unit mainly acquires capacitance type potential transformer primary side input voltage, secondary side output electricity
It presses, flow through capacitive divider electric current and flow through middle piezoelectricity magnetic cell electric current, the primary side input voltage is using decompression mutual inductor
Acquisition, the secondary side output voltage is directly acquired from the capacitance type potential transformer secondary side, described to flow through capacitance partial pressure
It device electric current and described flow through middle piezoelectricity magnetic cell electric current and is acquired using current transformer.
The signal conditioning unit includes signal amplification module and signal filter module, and the signal amplification module uses
AD706 operational amplifier can as needed be adjusted amplification factor；The filter module uses two-stage low-pass wave
Device effectively inhibits high-frequency harmonic, it is ensured that output signal meets the A/D converting unit working range by filtering twice.
The central control processing unit carries out analytical calculation to the signal of acquisition, and then judges that the capacitor voltage is mutual
Whether sensor breaks down:
If the secondary side output voltage becomes larger with the primary side input voltage ratio, the capacitor voltage mutual inductance
Breakdown or intermediate transformer primary coil partial short circuit failure occur for device high-voltage capacitance unit；
If the secondary side output voltage becomes smaller with the primary side input voltage ratio, the capacitor voltage mutual inductance
Breakdown or the intermediate transformer secondary coil partial short circuit failure occur for voltage capacitance unit in device；
If the secondary side output voltage and the primary side input voltage phase angle difference become smaller or described flow through capacitance partial pressure
Device electric current and it is described flow through middle piezoelectricity magnetic cell current ratio and become smaller, then dielectric loss occurs for the capacitance type potential transformer.
Finally it should be noted that only illustrating the technical solution of the utility model in conjunction with above-described embodiment rather than limiting it
System.Those of ordinary skills in the art should understand that arriving, those skilled in the art can be to the specific implementation of the utility model
Mode is modified or replaced equivalently, but these modifications or change are being applied among pending claims.
Claims (4)
1. a kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition, which is characterized in that the electrification
Detection device include signal acquisition unit, signal conditioning unit, A/D converting unit, central control processing unit, storage unit,
Display unit and key-press input unit, the signal acquisition unit, the signal conditioning unit, the A/D converting unit and institute
State central control processing unit sequential connection, the central control processing unit also respectively with the storage unit, the display
Unit is connected with the key-press input unit；The measuring device with electricity acquires the capacitance type potential transformer live line work
When relevant parameter, judge whether capacitance type potential transformer work normal after being calculated analytically, if faulty can
Alarm signal necessary measure so that relevant staff takes is issued in time.
2. a kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition according to claim 1,
It is characterized in that, the key-press input unit is mutual in conjunction with the storage unit, the display unit completion capacitor voltage
The input of sensor factory state parameter.
3. a kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition according to claim 2,
It is characterized in that, the signal acquisition unit mainly acquires capacitance type potential transformer primary side input voltage, secondary side output
Voltage flows through capacitive divider electric current and flows through middle piezoelectricity magnetic cell electric current, and the primary side input voltage is using decompression mutual inductance
Device acquisition, the secondary side output voltage are directly acquired from the capacitance type potential transformer secondary side, described to flow through capacitor point
It depressor electric current and described flow through middle piezoelectricity magnetic cell electric current and is acquired using current transformer.
4. a kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition according to claim 3,
It is characterized in that, the signal conditioning unit includes signal amplification module and signal filter module, the signal amplification module is adopted
With AD706 operational amplifier, amplification factor can be adjusted as needed；The filter module uses two-stage low-pass wave
Device effectively inhibits high-frequency harmonic, it is ensured that output signal meets the A/D converting unit working range by filtering twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821357954.8U CN209148863U (en) | 2018-08-22 | 2018-08-22 | A kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821357954.8U CN209148863U (en) | 2018-08-22 | 2018-08-22 | A kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209148863U true CN209148863U (en) | 2019-07-23 |
Family
ID=67266449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821357954.8U Active CN209148863U (en) | 2018-08-22 | 2018-08-22 | A kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209148863U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957299A (en) * | 2018-08-22 | 2018-12-07 | 国网江苏省电力有限公司盐城供电分公司 | A kind of multiple-level serially connected inversion detection tester for electronic circuit fault based on output signal acquisition |
| CN109116285A (en) * | 2018-08-22 | 2019-01-01 | 国网江苏省电力有限公司盐城供电分公司 | A kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition |
-
2018
- 2018-08-22 CN CN201821357954.8U patent/CN209148863U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108957299A (en) * | 2018-08-22 | 2018-12-07 | 国网江苏省电力有限公司盐城供电分公司 | A kind of multiple-level serially connected inversion detection tester for electronic circuit fault based on output signal acquisition |
| CN109116285A (en) * | 2018-08-22 | 2019-01-01 | 国网江苏省电力有限公司盐城供电分公司 | A kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101900782B (en) | Testing system of gas insulated combined electric appliance equipment | |
| CN103454517B (en) | Capacitance type potential transformer on-line monitoring method | |
| CN102967742B (en) | The electric mutual inductor of wide current detection range | |
| CN204882720U (en) | Intelligent computer direct current system monitoring facilities | |
| CN209148863U (en) | A kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition | |
| CN207730888U (en) | A kind of wind driven generator insulating state is detecting device integrated | |
| CN103293388A (en) | Method for monitoring capacitance values of parallel capacitors in online manner | |
| CN202770942U (en) | Electric-fire monitoring detector, and failure detecting circuit for residual current sensor of same | |
| CN204064495U (en) | A kind of temperature of oil in transformer pick-up unit | |
| CN202471828U (en) | Voltage sampling circuit suitable for dual-power automatic transfer switch and controller | |
| CN104142487B (en) | Electrified detecting device for tank type capacitor voltage transformer | |
| EP3125395A1 (en) | Monitoring system for detecting error of harmonic filter in high voltage direct current (hvdc) system, and monitoring method thereof | |
| CN109116285A (en) | A kind of capacitance type potential transformer measuring device with electricity based on multi-signal acquisition | |
| CN201331555Y (en) | Power unit input open-phase detector of high-voltage inverter | |
| CN207730890U (en) | A kind of wind-driven generator dielectric loss and local discharge integrated detection device | |
| CN202421375U (en) | Detection circuit for two-string-element internal-fuse capacitor | |
| CN207007960U (en) | A kind of overhead transmission line Zinc oxide arrester monitoring device | |
| CN110879338A (en) | High-voltage power equipment insulation detection system based on inductive power supply and detection method thereof | |
| CN203798945U (en) | High-voltage capacitor set imbalance detection circuit | |
| CN208607278U (en) | A kind of current testing device for CVT secondary voltage test device | |
| CN205404684U (en) | Oily charge pump high tension cable insulation resistance on -line monitoring device dives | |
| CN208636416U (en) | A kind of CVT secondary voltage analytical equipment based on electronic type transmitter | |
| CN209055594U (en) | A kind of lightning arrester monitoring device and system | |
| CN103595264A (en) | High-frequency power source with site manual operation system | |
| CN208607349U (en) | A kind of amperometry diagnostic device for CVT secondary voltage test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |