CN207817118U - A kind of electromagnetic potential transformer quick diagnosis device - Google Patents
A kind of electromagnetic potential transformer quick diagnosis device Download PDFInfo
- Publication number
- CN207817118U CN207817118U CN201820203165.2U CN201820203165U CN207817118U CN 207817118 U CN207817118 U CN 207817118U CN 201820203165 U CN201820203165 U CN 201820203165U CN 207817118 U CN207817118 U CN 207817118U
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- winding
- electromagnetic potential
- potential transformer
- transformer
- data processing
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Abstract
The utility model provides a kind of electromagnetic potential transformer quick diagnosis device, belongs to electric system electrical equipment detection technique field.It includes electromagnetic potential transformer, the electromagnetic potential transformer includes first winding and secondary winding, the secondary winding includes pressurization winding and non-pressurised winding, the non-pressurised winding connection resonance eliminator and inductive load, the resonance eliminator, low-vacuum load-tripping device and programmable logic controller (PLC) are sequentially connected electrically, and are arranged on the resonance eliminator and are exited indicator light and access indicator light；The pressurization winding is electrically connected a step-up transformer, and the step-up transformer, data acquisition device and digital analog converter are sequentially connected electrically, and the digital analog converter, filter and data processing system are sequentially connected electrically, and the data processing system connects a display.The utility model can quickly detect turn-to-turn short circuit, and accuracy of detection is high.
Description
Technical field
The utility model is related to electric system electrical equipment detection technique fields, and in particular to a kind of electromagnetic potential mutual inductance
Device quick diagnosis device.
Background technology
Currently, when electric voltage exception occur in 6kV, 10kV, 35kV voltage, in order to ensure power system security, prevent accident from expanding
Bigization, it is usually that electromagnetic potential transformer is out of service, wait for professional testing crew inspection.
When electromagnetic potential transformer longtime running, temperature can increase naturally, and when turn-to-turn insulation is bad, insulation also can be with
Decline, form turn-to-turn short circuit, cause monitoring voltage abnormal.When testing crew reaches working site experiment, electromagnetic potential
Mutual inductor temperature has declined, and turn-to-turn insulation is restored.Since the test voltage that no-load voltage ratio bridge test instrument provides is relatively low,
The electromagnetic potential transformer that turn-to-turn insulation is restored is measured, erroneous judgement is susceptible to.Recovery normally often occurs sending at that time
It is electric normal, occur monitoring voltage exception again after a period of time.
The patent document that notification number is 202383224 U of CN discloses a kind of turn-to-turn short circuit of voltage transformer and supervises online
Device is surveyed, electromagnetic potential transformer turn-to-turn short circuit can be monitored on-line, using magnetic potential balance principle, high precision monitor is once led
It receives, reflects electromagnetic potential transformer shorted-turn fault therefrom.At data acquisition element, A/D conversion elements, data
Reason system and host computer are in series with sampling resistor in the end of high-tension coil of voltage transformer；Voltage transformer secondary around
On one group of low-voltage coil of group, it is in series with divider resistance, sampling resistor and divider resistance are connected separately with A/D conversion elements, change
It has been apt to current the shortcomings that not reached requirement using straight-through current transformer monitoring current signal accuracy, can have reflected electromagnetism well
Formula voltage transformer shorted-turn fault.But its detection consuming time is long.
Invention content
In view of this, the utility model in view of the deficiencies of the prior art, provide a kind of can quickly detect turn-to-turn short circuit
Electromagnetic potential transformer quick diagnosis device.
In order to solve the above technical problems, technical solution adopted in the utility model is：A kind of electromagnetic potential transformer
Quick diagnosis device, including electromagnetic potential transformer, the electromagnetic potential transformer include first winding and secondary winding,
The secondary winding includes pressurization winding and non-pressurised winding, and the non-pressurised winding connects resonance eliminator and inductive load, described
Resonance eliminator, low-vacuum load-tripping device and programmable logic controller (PLC) are sequentially connected electrically, and are arranged on the resonance eliminator and are exited indicator light and connect
Enter indicator light；The pressurization winding is electrically connected a step-up transformer, the step-up transformer, data acquisition device and digital-to-analogue conversion
Device is sequentially connected electrically, and the digital analog converter, filter and data processing system are sequentially connected electrically, and the data processing system connects
Connect a display.
Preferably, control button is set on the programmable logic controller (PLC).
Preferably, the data processing system includes central processing unit and the cluster that is connected with the central processing unit
Device.
Preferably, the data processing system connects radio transmitter, between the radio transmitter and wireless receiver
Transmit information.
Preferably, the data processing system connects warning device.
Compared with prior art, the beneficial effects of the utility model are as follows：
The utility model improves existing electromagnetic potential transformer detection device so that its not only accuracy of detection
Height, and diagnose quick.Voltage is adjusted by step-up transformer in the utility model, data acquisition device acquires PT open deltas
Voltage, and collected information is transferred in data processing system and is handled, the result of processing is sent to by data processing system
Display eliminates the resonance generated by resonance eliminator, can avoid the generation of the accident because of the PT damages that ferromagnetic resonance generates.It can compile
Journey logic controller control resonance eliminator exiting and accessing, and when being detected to PT, only need to press programmable logic controller (PLC)
On control button, can realize exiting or accessing for resonance eliminator, and then be detected to PT.Because there is higher electricity in resonance eliminator upper end
Pressure, easily discharges over the ground, and the contact resistance of very little is can access when short circuit, otherwise may influence accuracy in detection, and when work belongs to
Switch in bringing onto load, so coordinating controller appropriate to carry out access and short circuit to resonance eliminator using low-vacuum load-tripping device.Signal is adopted
Storage collects signal, and filter carries out low-pass filtering to collected signal, eliminated the interference of high-frequency signal.Cluster
By treated, signal carries out clustering to device according to kmeans algorithms, facilitates taxonomic revision, is convenient for systematized management.
The utility model can in the case where not exiting PT to running resonance eliminator carry out short circuit, after test
Resonance eliminator is accessed.When to voltage transformer and circuit regular inspection or preventive trial, a resonance eliminator lead can not be torn open to it
It is tested, not only reduced power off time in this way but also saves a large amount of human and material resources, financial resources, while in turn ensuring safety.It improves
Production management level realizes power grid security production run.Exiting for a running resonance eliminator may be implemented in the utility model
With access, facilitates equipment live and measure discovery potential faults in time, ensure the safe and reliable operation of electric system, improve and measure essence
Degree.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model embodiment one；
Fig. 2 is the structural schematic diagram of the utility model embodiment two.
Specific implementation mode
The utility model in order to better understand is further fairly set out in the utility model with reference to embodiment
Hold, but the protection content of the utility model is not limited solely to the following examples.In the following description, a large amount of tools are given
The details of body more thoroughly understands in order to provide to the utility model.However, aobvious and easy to those skilled in the art
See, the utility model may not need one or more of these details and be carried out.
Embodiment one
As shown in Figure 1, a kind of electromagnetic potential transformer quick diagnosis device, it is characterised in that：Including electromagnetic potential
Mutual inductor, the electromagnetic potential transformer include first winding and secondary winding, the secondary winding include pressurization winding and
Non-pressurised winding, the non-pressurised winding connection resonance eliminator and inductive load, the resonance eliminator, low-vacuum load-tripping device and programmable are patrolled
It collects controller to be sequentially connected electrically, is arranged on the resonance eliminator and exits indicator light and access indicator light；The pressurization winding electrical connection
One step-up transformer, the step-up transformer, data acquisition device and digital analog converter are sequentially connected electrically, the digital-to-analogue conversion
Device, filter and data processing system are sequentially connected electrically, and the data processing system connects a display.
Specifically, control button is arranged on the programmable logic controller (PLC), the data processing system includes centre
Reason device and the cluster device being connected with the central processing unit, the data processing system connects radio transmitter, described wireless
Information is transmitted between transmitter and wireless receiver.
The utility model electromagnetic potential transformer quick diagnosis device when test, which is powered on, pressing can
Control button in programmed logic controller, resonance eliminator exits and short circuit, exits indicator light and lights.Start step-up transformer, it is right
Electromagnetic potential transformer pressurizes, and carries out voltage-withstand test, whether breakdown detects it.After being completed, controller is pressed again
On control button, resonance eliminator is accessed, access indicator light light, data acquisition device collection voltages information is through digital-to-analogue conversion
Device, filter transfer to data processing system, are monitored on-line.
Embodiment two
As shown in Fig. 2, a kind of electromagnetic potential transformer quick diagnosis device, it is characterised in that：Including electromagnetic potential
Mutual inductor, the electromagnetic potential transformer include first winding and secondary winding, the secondary winding include pressurization winding and
Non-pressurised winding, the non-pressurised winding connection resonance eliminator and inductive load, the resonance eliminator, low-vacuum load-tripping device and programmable are patrolled
It collects controller to be sequentially connected electrically, is arranged on the resonance eliminator and exits indicator light and access indicator light；The pressurization winding electrical connection
One step-up transformer, the step-up transformer, data acquisition device and digital analog converter are sequentially connected electrically, the digital-to-analogue conversion
Device, filter and data processing system are sequentially connected electrically, and the data processing system connects a display.
Specifically, control button is arranged on the programmable logic controller (PLC), the data processing system includes centre
Reason device and the cluster device being connected with the central processing unit, the data processing system connects radio transmitter, described wireless
Information is transmitted between transmitter and wireless receiver.
The difference of the electromagnetic potential transformer quick diagnosis device and embodiment one of the utility model embodiment two
It is：The data processing system connects warning device, is carried out to problematic electromagnetic potential transformer in monitoring process
Alarm, it is more convenient to use.
Finally illustrate, above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, this field
Other modifications or equivalent replacement that those of ordinary skill makes the technical solution of the utility model, without departing from this practicality
The spirit and scope of new technique scheme should all cover in the right of the utility model.
Claims (5)
1. a kind of electromagnetic potential transformer quick diagnosis device, it is characterised in that：Including electromagnetic potential transformer, the electricity
Electromagnetic type voltage transformer includes first winding and secondary winding, and the secondary winding includes pressurization winding and non-pressurised winding, institute
Non-pressurised winding connection resonance eliminator and inductive load are stated, the resonance eliminator, low-vacuum load-tripping device and programmable logic controller (PLC) are successively
It is electrically connected, is arranged on the resonance eliminator and exits indicator light and access indicator light；The pressurization winding is electrically connected a step-up transformer,
The step-up transformer, data acquisition device and digital analog converter are sequentially connected electrically, the digital analog converter, filter and data
Processing system is sequentially connected electrically, and the data processing system connects a display.
2. electromagnetic potential transformer quick diagnosis device as described in claim 1, it is characterised in that：The programmable logic
Control button is set on controller.
3. electromagnetic potential transformer quick diagnosis device as claimed in claim 2, it is characterised in that：The data processing system
System includes central processing unit and the cluster device being connected with the central processing unit.
4. electromagnetic potential transformer quick diagnosis device as claimed in claim 3, it is characterised in that：The data processing system
System connection radio transmitter, information is transmitted between the radio transmitter and wireless receiver.
5. electromagnetic potential transformer quick diagnosis device as claimed in claim 4, it is characterised in that：The data processing system
System connection warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820203165.2U CN207817118U (en) | 2018-02-06 | 2018-02-06 | A kind of electromagnetic potential transformer quick diagnosis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820203165.2U CN207817118U (en) | 2018-02-06 | 2018-02-06 | A kind of electromagnetic potential transformer quick diagnosis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207817118U true CN207817118U (en) | 2018-09-04 |
Family
ID=63320611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820203165.2U Expired - Fee Related CN207817118U (en) | 2018-02-06 | 2018-02-06 | A kind of electromagnetic potential transformer quick diagnosis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207817118U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407034A (en) * | 2018-12-12 | 2019-03-01 | 云南电网有限责任公司昆明供电局 | A kind of synchronization of great current mutual inductor first and second termination |
| CN110031662A (en) * | 2019-06-04 | 2019-07-19 | 国网新疆电力有限公司公司哈密供电公司 | One kind exempting from humorous formula voltage transformer |
| CN115621023A (en) * | 2022-11-11 | 2023-01-17 | 烟台东方威思顿电气有限公司 | Feed-through current isolation mutual inductor |
-
2018
- 2018-02-06 CN CN201820203165.2U patent/CN207817118U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109407034A (en) * | 2018-12-12 | 2019-03-01 | 云南电网有限责任公司昆明供电局 | A kind of synchronization of great current mutual inductor first and second termination |
| CN109407034B (en) * | 2018-12-12 | 2023-09-08 | 云南电网有限责任公司昆明供电局 | Primary and secondary synchronous wiring device of large-current transformer |
| CN110031662A (en) * | 2019-06-04 | 2019-07-19 | 国网新疆电力有限公司公司哈密供电公司 | One kind exempting from humorous formula voltage transformer |
| CN110031662B (en) * | 2019-06-04 | 2021-03-02 | 国网新疆电力有限公司公司哈密供电公司 | Harmonic-free voltage transformer |
| CN115621023A (en) * | 2022-11-11 | 2023-01-17 | 烟台东方威思顿电气有限公司 | Feed-through current isolation mutual inductor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180904 Termination date: 20190206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |