CN204086401U - For the device of power transmission line power frequency parameters measuring - Google Patents
For the device of power transmission line power frequency parameters measuring Download PDFInfo
- Publication number
- CN204086401U CN204086401U CN201420636916.1U CN201420636916U CN204086401U CN 204086401 U CN204086401 U CN 204086401U CN 201420636916 U CN201420636916 U CN 201420636916U CN 204086401 U CN204086401 U CN 204086401U
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- China
- Prior art keywords
- transmission line
- process chip
- power transmission
- frequency parameters
- signal acquisition
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- Expired - Fee Related
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses a kind of device for power transmission line power frequency parameters measuring, it is characterized in that: comprise process chip, signal acquisition circuit device, wave filter, three-phase transformer, AD sampling apparatus and power supply, described power supply and three-phase transformer connect display successively, AD sampling apparatus, process chip, signal acquisition circuit device and wave filter, described process chip is also interconnected with printer, this device can measure power transmission line power frequency parameter, comprise positive sequence impedance, positive sequence admittance, zero sequence impedance, zero sequence admittance, the coupling capacitance of capacitive coupling and Transmission Lines with Parallel Sections line and mutual inductive impedance, can the admittance of Measurement accuracy transmission line of electricity without the need to measuring circuit tail end voltage.
Description
Technical field
The present invention relates to electrical engineering technical field, specifically a kind of device for power transmission line power frequency parameters measuring.
Background technology
Power transmission line power frequency parameter generally comprises coupling capacitance and the mutual inductive impedance of positive sequence impedance, zero sequence impedance, capacitive coupling, positive sequence electric capacity, zero sequence electric capacity and Transmission Lines with Parallel Sections line.They are the parameters necessary carrying out Electrical power system analysis and computing, engineering require this parameter must be obtained by actual measurement.Traditional manual measurement method has many shortcomings: need to use many tables to count, and during measurement, wiring is complicated, workload is large, error is large, the accuracy of harmonic effects measurement in measuring-signal.
Summary of the invention
In order to overcome above-described weak point, the utility model provides a kind of device for power transmission line power frequency parameters measuring, and this device can provide a kind of to be measured accurately, the power transmission line power frequency parameters measuring device of highly versatile.
The technical solution adopted for the present invention to solve the technical problems is: a kind of device for power transmission line power frequency parameters measuring, it is characterized in that: comprise process chip, signal acquisition circuit device, wave filter, three-phase transformer, AD sampling apparatus and power supply, described power supply and three-phase transformer connect display, AD sampling apparatus, process chip successively, signal acquisition circuit device and wave filter, described process chip is also interconnected with printer.
As preferably, described a kind of device for power transmission line power frequency parameters measuring, is characterized in that: be provided with a rotary switch between described power supply and three-phase transformer.
Further, described a kind of device for power transmission line power frequency parameters measuring, is characterized in that: described signal acquisition circuit device is made up of voltage transformer (VT) summation current transformer.
The beneficial effects of the utility model are: this device can measure power transmission line power frequency parameter, comprise positive sequence impedance, positive sequence admittance, zero sequence impedance, zero sequence admittance, the coupling capacitance of capacitive coupling and Transmission Lines with Parallel Sections line and mutual inductive impedance, can the admittance of Measurement accuracy transmission line of electricity without the need to measuring circuit tail end voltage.
Accompanying drawing explanation
Fig. 1 is principle schematic of the present utility model.
In figure: 1. process chip, 2 signal acquisition circuit device, 3. wave filter, 4. three-phase transformers,
5.AD sampling apparatus, 6. power supply, 7. rotary switch, 8. display, 9. printer, 10. voltage transformer (VT), 11. current transformers.
Embodiment
A kind of device for power transmission line power frequency parameters measuring, assembly comprises the process chip 1 with handling procedure, signal acquisition circuit device 2, wave filter 3, three-phase transformer 4, AD sampling apparatus 5 and power supply 6, power supply 6 and three-phase transformer 4 connect display 8 successively, AD sampling apparatus 5, process chip 1, signal acquisition circuit device 2 and wave filter 3, described process chip 1 is gone back and printer 9 is interconnected, a rotary switch 7 is provided with between power supply 6 and three-phase transformer 4, wherein, signal acquisition circuit device 2 is made up of voltage transformer (VT) 10 summation current transformer 11 liang of large assemblies.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendment, on an equal basis replacement and improvement etc. done within spirit of the present utility model and principle, all should drop within protection domain of the present utility model.
Claims (3)
1. the device for power transmission line power frequency parameters measuring, it is characterized in that: comprise process chip, signal acquisition circuit device, wave filter, three-phase transformer, AD sampling apparatus and power supply, described power supply and three-phase transformer connect display, AD sampling apparatus, process chip successively, signal acquisition circuit device and wave filter, described process chip is also interconnected with printer.
2. a kind of device for power transmission line power frequency parameters measuring according to claim 1, is characterized in that: be provided with a rotary switch between described power supply and three-phase transformer.
3. a kind of device for power transmission line power frequency parameters measuring according to claim 1, is characterized in that: described signal acquisition circuit device is made up of voltage transformer (VT) summation current transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636916.1U CN204086401U (en) | 2014-10-30 | 2014-10-30 | For the device of power transmission line power frequency parameters measuring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420636916.1U CN204086401U (en) | 2014-10-30 | 2014-10-30 | For the device of power transmission line power frequency parameters measuring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204086401U true CN204086401U (en) | 2015-01-07 |
Family
ID=52179102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420636916.1U Expired - Fee Related CN204086401U (en) | 2014-10-30 | 2014-10-30 | For the device of power transmission line power frequency parameters measuring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204086401U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597347A (en) * | 2015-01-16 | 2015-05-06 | 国网上海市电力公司 | Power transmission line power-frequency parameter testing device based on optical fiber and portable computer |
| CN106324353A (en) * | 2016-08-17 | 2017-01-11 | 国家电网公司 | Inductive filtering converter transformer harmonic wave impedance measurement method and device |
-
2014
- 2014-10-30 CN CN201420636916.1U patent/CN204086401U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597347A (en) * | 2015-01-16 | 2015-05-06 | 国网上海市电力公司 | Power transmission line power-frequency parameter testing device based on optical fiber and portable computer |
| CN106324353A (en) * | 2016-08-17 | 2017-01-11 | 国家电网公司 | Inductive filtering converter transformer harmonic wave impedance measurement method and device |
| CN106324353B (en) * | 2016-08-17 | 2018-10-19 | 国家电网公司 | A kind of induction filtering converter power transformer harmonic impedance measurement method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20181030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |