CN205229278U - PT, CT composite set that can install with electricity - Google Patents
PT, CT composite set that can install with electricity Download PDFInfo
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- CN205229278U CN205229278U CN201520982301.9U CN201520982301U CN205229278U CN 205229278 U CN205229278 U CN 205229278U CN 201520982301 U CN201520982301 U CN 201520982301U CN 205229278 U CN205229278 U CN 205229278U
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- equipotential
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Abstract
The utility model discloses a PT, CT composite set that can install with electricity, including A looks detecting element, B looks detecting element, C looks detecting element, control module, wireless communication module and low tension side energy supply power module, a looks detecting element, B looks detecting element and C looks detecting element include all that the ability mutual -inductor is got to high -pressure equipotential opening current transformer, high -pressure equipotential current sample module, electric capacity type, ability power module, electronic voltage transformer and voltage signal sampling module are got to high -pressure equipotential voltage. The utility model discloses can carry out high -pressure electric quantity collection in the not outage circumstances to, the large tracts of land can not cause hidden danger to the safe operation of electric wire netting when installing and use yet.
Description
Technical field
The utility model relates to supply line's voltage and current detecting device, especially relate to a kind of can PT, CT combination unit of charged installation.
Background technology
Along with development and the enforcement of intelligent power grid technology, often need from electric system, extract different occasion electric current, voltage signal, and transfer to corresponding application system, for the application of the aspects such as electric energy quality monitoring and improvement, distribution automation, electric network information transparence provides reliably signal source, corresponding application system is played one's part to the full.
To improve the quality of power supply of electrical network, first by appropriate detecting element, accurate determination and analysis to be made to voltage, electric current, measure the quality of power supply level of electrical network, and analyze and judge to cause the reason of various power quality problem, for the improvement of the quality of power supply provides foundation.10kV power distribution network is as the supply network of final power consumer, and branch is the widest, net structure and load variations is the most complicated, owing to being directly connected to supply load, its quality of power supply is vulnerable to impact most.From whole network system, improve distribution network electric energy quality level great to the contribution improving whole electrical network quality of power supply level; From the power supply function that power distribution network is formed a connecting link, the more and more necessary of directly carrying out electric energy quality monitoring from high-pressure side is increased, effectively the quality of power supply of 10kV power distribution network is optimized raising, directly decide the quality of power supply of upstream electrical network and downstream user.But because user requires more and more higher to power supply reliability, power cut construction is more and more difficult, and most quality of power supply on-line monitoring needs to carry out charged installing additional in existing operation electrical network, but high pressure conventional electromagnetic mutual inductor cannot charged installation under the condition that do not have a power failure of not breaking, and because having easy magnetic saturation, measurement range and response band narrow, easy ferroresonance, the principle defects such as oneself power consumption is large, and circuit ferroresonance point can be increased after a large amount of installation, increase the circuit defect causing power grid security economic operation level to reduce such as idle, make existing equipment cannot meet the distribution networking of power grid user to fast and flexible, to obtain the demand of large data.
Publication number: 201310500019.8, name is called: the patent of invention of voltage transformer (VT), disclose a kind of voltage transformer (VT), comprise epoxy resin mixed glue layer, winding, Secondary Winding, an iron core, the hollow cylinder iron core of the iron core of mutual inductor to be the cross section of the curling coiling of cold rolled grain oriented silicon steel band be annular, iron core is wound with Secondary Winding, be wound with a winding outside Secondary Winding, epoxy resin mixed glue layer is wrapped in the current transformer body periphery be made up of winding, Secondary Winding, an iron core.The core material application computer design sawing sheet technology of mutual inductor, the cold rolled grain orientation silicon steel tape wrapping of the minimum high magnetic flux density of iron loss is adopted to make, core section is round, thus not cutting magnetic line, air-gap-free in magnetic circuit, magnetostrictive force is easy to be absorbed, iron core is after strict annealing process process, it is little that material magnetic property is recovered leakage field comprehensively, loss is low, temperature rise is low, noise is low, bear the advantage that overload ripple dynamic property is good, but this voltage transformer (VT) can not carry out high pressure electric quantity acquisition at not powering-off state, and easily impact to electric power netting safe running when large area is installed.
Utility model content
In view of this, the purpose of this utility model is for the deficiencies in the prior art, there is provided a kind of can PT, CT combination unit of charged installation, solve the electric power netting safe running problem that prior art causes under can not carrying out high pressure electric quantity acquisition and large area installation situation at not powering-off state.
For achieving the above object, the utility model by the following technical solutions:
A kind of can the PT of charged installation, CT combination unit, comprises A phase detecting unit, B phase detecting unit, C phase detecting unit, control module, wireless communication module and low-pressure side energising power module, described A phase detecting unit, B phase detecting unit and C phase detecting unit include high pressure equipotential opening current transformer, high pressure equipotential electric current sampling module, capacitor type gets energy mutual inductor, high pressure equipotential voltage draw-out power supply module, electronic type voltage transformer and voltage signal sampling module, described high pressure equipotential electric current sampling module respectively with high pressure equipotential opening current transformer, high pressure equipotential voltage draw-out power supply module and control module electrical connection, described capacitor type get can mutual inductor be electrically connected with high pressure equipotential voltage draw-out power supply module and described low-pressure side energising power module respectively, described voltage signal sampling module respectively with electronic type voltage transformer, control module and the electrical connection of low-pressure side energising power module, described wireless communication module is electrically connected with described control module, described low-pressure side energising power module is electrically connected with described control module, and described high pressure equipotential opening current transformer is arranged at equipotential high-pressure side.
Preferably, described control module comprises controller, and described controller adopts STM32F4 chip.
Preferably, described wireless communication module comprises GPRS module and Zigbee wireless communication module, and described GPRS module is all connected with the communication port of described controller with Zigbee wireless communication module.
Preferably, described capacitor type is got in energy mutual inductor and high pressure equipotential voltage draw-out power supply module and is provided with fuse.
Preferably, the described output terminal of high pressure equipotential electric current sampling module and the signal input part of control module pass through Fiber connection.
The beneficial effects of the utility model are:
1, the high pressure equipotential opening current transformer that adopts of the utility model, it has stable, reliable operation and blanket advantage.
2, the electric current in the utility model, voltage and electric energy are got and all can be adopted three element design by mutual inductor, high pressure equipotential opening current transformer is placed in equipotential high-pressure side, and current acquisition calculating and collection plate energy supply is completed in high-pressure side, current acquisition amount is transmitted through the fiber to secondary side control module, the basic electric parameters such as effective value, power, frequency can be obtained by fft analysis, and send to host computer to process by wireless transport module.
3, solve can the consistance of high pressure electric quantity collector performance of charged installation and integrity problem for the utility model, removes technology barrier for it uses in enormous quantities.
4, communication module of the present utility model has GPRS module and Zigbee wireless communication module, can realize the radio communication of short distance and long distance, ensure that the reliability of communication.
Accompanying drawing explanation
Fig. 1 is composition structured flowchart of the present utility model;
In figure: 1-A phase detecting unit, 2-B phase detecting unit, 3-C phase detecting unit, 4-control module, 5-wireless communication module, 6-low-pressure side energising power module, 11-high pressure equipotential opening current transformer and, 12-high pressure equipotential electric current sampling module, 13-capacitor type are got can mutual inductor, 14-high pressure equipotential voltage draw-out power supply module, 15-electronic type voltage transformer, 16-voltage signal sampling module.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
As shown in Figure 1, the utility model comprises A phase detecting unit 1, B phase detecting unit 2, C phase detecting unit 3, control module 4, wireless communication module 5 and low-pressure side energising power module 6, A phase detecting unit 1, B phase detecting unit 2 and C phase detecting unit 3 include high pressure equipotential opening current transformer 11, high pressure equipotential electric current sampling module 12, capacitor type gets energy mutual inductor 13, high pressure equipotential voltage draw-out power supply module 14, electronic type voltage transformer 15 and voltage signal sampling module 16, high pressure equipotential electric current sampling module 12 respectively with high pressure equipotential opening current transformer 11, high pressure equipotential voltage draw-out power supply module 14 and control module electrical connection, capacitor type is got and can be electrically connected with high pressure equipotential voltage draw-out power supply module 14 and low-pressure side energising power module 6 respectively by mutual inductor 13, voltage signal sampling module 16 respectively with electronic type voltage transformer 15, control module and low-pressure side energising power module 6 are electrically connected, wireless communication module 5 is electrically connected with control module, low-pressure side energising power module 6 is electrically connected with control module, high pressure equipotential opening current transformer 11 is arranged at equipotential high-pressure side, capacitor type is got and can be respectively high pressure equipotential voltage draw-out power supply module 14 and low-pressure side energising power module 6 supply of electrical energy by mutual inductor 13.
Control module 4 comprises controller, controller adopts STM32F4 chip, the output terminal of high pressure equipotential electric current sampling module 12 and the signal input part of control module 4 pass through Fiber connection, ensure that signal not by extraneous electromagnetic interference (EMI), wireless communication module 5 comprises GPRS module and Zigbee wireless communication module 5, GPRS module is all connected by signal wire with the communication port of controller with Zigbee wireless communication module 5, according to the far and near requirement of communication distance, can choose different communication modes.
High pressure equipotential electric current sampling module 12 and voltage signal sampling module 16 inside all have signal conditioning circuit, signal conditioning circuit comprises signal amplification circuit and A/D change-over circuit, and the voltage and current signal of mutual inductor collection changes the digital signal that controller can identify and process into after the process of signal conditioning circuit.
Capacitor type is got and can be provided with fuse in mutual inductor 13 and high pressure equipotential voltage draw-out power supply module 14, when there is short-circuit conditions in circuit, can available protecting capacitor type get can the safety of mutual inductor 13 and high pressure equipotential voltage draw-out power supply module 14.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, other amendments that those of ordinary skill in the art make the technical solution of the utility model or equivalently to replace, only otherwise depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (5)
1. one kind can the PT of charged installation, CT combination unit, is characterized in that: comprise A phase detecting unit, B phase detecting unit, C phase detecting unit, control module, wireless communication module and low-pressure side energising power module, described A phase detecting unit, B phase detecting unit and C phase detecting unit include high pressure equipotential opening current transformer, high pressure equipotential electric current sampling module, capacitor type gets energy mutual inductor, high pressure equipotential voltage draw-out power supply module, electronic type voltage transformer and voltage signal sampling module, described high pressure equipotential electric current sampling module respectively with high pressure equipotential opening current transformer, high pressure equipotential voltage draw-out power supply module and control module electrical connection, described capacitor type get can mutual inductor be electrically connected with high pressure equipotential voltage draw-out power supply module and described low-pressure side energising power module respectively, described voltage signal sampling module respectively with electronic type voltage transformer, control module and the electrical connection of low-pressure side energising power module, described wireless communication module is electrically connected with described control module, and described low-pressure side energising power module is electrically connected with described control module.
2. according to claim 1 can PT, CT combination unit of charged installation, it is characterized in that: described control module comprises controller, described controller adopts STM32F4 chip.
3. according to claim 2 can PT, CT combination unit of charged installation, it is characterized in that: described wireless communication module comprises GPRS module and Zigbee wireless communication module, and described GPRS module is all connected with the communication port of described controller with Zigbee wireless communication module.
4. according to claim 1 can PT, CT combination unit of charged installation, it is characterized in that: described capacitor type is got and can be provided with fuse in mutual inductor and high pressure equipotential voltage draw-out power supply module.
5. according to claim 1 can PT, CT combination unit of charged installation, it is characterized in that: the described output terminal of high pressure equipotential electric current sampling module and the signal input part of control module pass through Fiber connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982301.9U CN205229278U (en) | 2015-12-01 | 2015-12-01 | PT, CT composite set that can install with electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520982301.9U CN205229278U (en) | 2015-12-01 | 2015-12-01 | PT, CT composite set that can install with electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205229278U true CN205229278U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520982301.9U Expired - Fee Related CN205229278U (en) | 2015-12-01 | 2015-12-01 | PT, CT composite set that can install with electricity |
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| Country | Link |
|---|---|
| CN (1) | CN205229278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334375A (en) * | 2015-12-01 | 2016-02-17 | 国网河南省电力公司平顶山供电公司 | PT-CT combined device capable of being installed in charged mode |
-
2015
- 2015-12-01 CN CN201520982301.9U patent/CN205229278U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105334375A (en) * | 2015-12-01 | 2016-02-17 | 国网河南省电力公司平顶山供电公司 | PT-CT combined device capable of being installed in charged mode |
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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: 20160511 Termination date: 20181201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |