CN209231453U - A kind of superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge - Google Patents
A kind of superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge Download PDFInfo
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- CN209231453U CN209231453U CN201821590606.5U CN201821590606U CN209231453U CN 209231453 U CN209231453 U CN 209231453U CN 201821590606 U CN201821590606 U CN 201821590606U CN 209231453 U CN209231453 U CN 209231453U
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Abstract
The utility model discloses a kind of superfrequency hand-held steep-sided pulse generators applied to the test of GIS partial discharge, comprising: processing unit, LORA wireless receiving circuit and pulse output circuit；Processing unit includes single-chip microcontroller；LORA wireless receiving circuit includes LORA antenna and LORA wireless receiving module, and LORA antenna is connect by conducting wire with LORA wireless receiving module；Pulse output circuit includes DC high-voltage source module, output control circuit and pluse output circuit, and DC high-voltage source module, output control circuit and pluse output circuit are sequentially connected with；One end of single-chip microcontroller is connect with LORA wireless receiving module, and the other end of single-chip microcontroller is connect with output control circuit.Above scheme provided by the utility model can be very good to test to the sensitivity of ultra high-frequency partial discharge sensor.
Description
Technical field
The utility model relates to power electronics industry technology field, in particular to a kind of spy applied to the test of GIS partial discharge
High frequency hand-held steep-sided pulse generator.
Background technique
Partial-discharge ultrahigh-frequency method (UHF) is onthe technology of site test developed in recent years, it passes through exhausted in detection GIS
The electromagnetic wave that edge hidden danger radiates under working voltage, to judge whether shelf depreciation occurs inside GIS.Practical experience shows office
Electric discharge superfrequency detection in portion's has the characteristics that detection sensitivity height and strong antijamming capability, suitable for power plant and substation
GIS partial discharge measurement.
In GIS partial discharge detection, the performance of ultra high-frequency partial discharge sensor is played a crucial role, will
The ultrahigh-frequency signal that GIS device generates when discharging is converted into electric signal.In order to guarantee the stability of shelf depreciation system and accurate
Property, it needs periodically to carry out field-checking to the ultra high-frequency partial discharge sensor of GIS device before putting equipment in service, after maintenance.For
It tests to the sensitivity of ultra high-frequency partial discharge sensor, needs to inject the shelf depreciation of simulation to the inside of GIS device
Steep-sided pulse signal.
Utility model content
The purpose of the utility model is to provide a kind of superfrequency hand-held steep-sided pulse generations applied to the test of GIS partial discharge
Device, for simulating local discharge signal.
The utility model provides a kind of superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge, comprising:
Processing unit, LORA wireless receiving circuit and pulse output circuit；The processing unit includes single-chip microcontroller；The LORA wirelessly connects
Receiving circuit includes LORA antenna and LORA wireless receiving module, and the LORA antenna is connected by conducting wire and LORA wireless receiving module
It connects；The pulse output circuit includes DC high-voltage source module, output control circuit and pluse output circuit, and the direct current is high
Piezoelectricity source module, output control circuit and pluse output circuit are sequentially connected with；One end of the single-chip microcontroller and the LORA are wireless
Receiving module connection, the other end of the single-chip microcontroller are connect with the output control circuit.
Preferably, the processing unit further include: external trigger module, key and liquid crystal display, the external trigger module,
Key, liquid crystal display are connect with the single-chip microcontroller respectively.
Preferably, the single-chip microcontroller is also connect with the DC high-voltage source module.
Preferably, the single-chip microcontroller uses STM32F103 processor.
Preferably, the LORA wireless receiving module uses SX127X chip.
Preferably, the pluse output circuit includes current-limiting resistance R1, relay and output resistance R2, the current-limiting resistance
The output end of R1 is connected by the input terminal of conducting wire and relay, and the output end of the relay passes through conducting wire and output resistance R2
Input terminal connection, the output end of the output resistance R2 connect by power supply with the input terminal of current-limiting resistance R1.
Preferably, the relay selects mercury relay.
Preferably, the R1 is 1M Ω, the R2 is 200 Ω.
A kind of superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge provided by the utility model, passes through
It is sequentially connected with to form office between LORA antenna, LORA wireless receiving module, single-chip microcontroller, output control circuit and pluse output circuit
The steep-sided pulse signal of portion's electric discharge, so as to test well to the sensitivity of ultra high-frequency partial discharge sensor.
Detailed description of the invention
Fig. 1 is a kind of superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge provided by the utility model
Internal circuit diagram；
Fig. 2 is pluse output circuit internal circuit diagram.
Specific embodiment
With reference to the accompanying drawing, a specific embodiment of the utility model is described in detail, it is to be understood that this
The protection scope of utility model is not limited by the specific implementation.
As shown in Figure 1, the utility model embodiment provide it is a kind of applied to GIS partial discharge test superfrequency hand-held it is steep
Impulse generator, comprising: processing unit, LORA wireless receiving circuit and pulse output circuit；Further, processing unit includes
Single-chip microcontroller；LORA wireless receiving circuit includes LORA antenna and LORA wireless receiving module, and LORA antenna passes through conducting wire and LORA
Wireless receiving module connection；Pulse output circuit includes DC high-voltage source module, output control circuit and pluse output circuit,
DC high-voltage source module, output control circuit and pluse output circuit are sequentially connected with；One end of single-chip microcontroller wirelessly connects with LORA
Module connection is received, the other end of single-chip microcontroller is connect with output control circuit.
Further, processing unit further include: external trigger module, key and liquid crystal display, external trigger module, key,
Liquid crystal display is connect with single-chip microcontroller respectively.It should be noted that above-mentioned key is made of number key and function button, for defeated
Set of frequency, voltage value setting, output control and switching on and shutting down control out；Liquid crystal display uses 2.8 cun of TFT LCDs.
Further, single-chip microcontroller is also connect with DC high-voltage source module, so as to control output electricity by single-chip microcontroller
Pressure.
Further, single-chip microcontroller uses STM32F103 processor.
Further, LORA wireless receiving module uses SX127X chip.
Further, as shown in Fig. 2, pluse output circuit includes current-limiting resistance R1, relay and output resistance R2, current limliting
The output end of resistance R1 is connected by the input terminal of conducting wire and relay, and the output end of relay passes through conducting wire and output resistance R2
Input terminal connection, the output end of output resistance R2 connect by power supply with the input terminal of current-limiting resistance R1.
It should be noted that above-mentioned relay selects mercury relay, R1 is 1M Ω, and R2 is 200 Ω.
In conclusion a kind of superfrequency hand-held applied to the test of GIS partial discharge provided by the embodiment of the utility model is steep
Impulse generator, by LORA antenna, LORA wireless receiving module, single-chip microcontroller, output control circuit and pluse output circuit it
Between be sequentially connected with the steep-sided pulse signal to form shelf depreciation, so as to well to the sensitive of ultra high-frequency partial discharge sensor
Degree is tested.
Disclosed above is only several specific embodiments of the utility model, and still, the utility model embodiment is not office
It is limited to this, the changes that any person skilled in the art can think of should all fall into the protection scope of the utility model.
Claims (8)
1. a kind of superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge characterized by comprising processing is single
Member, LORA wireless receiving circuit and pulse output circuit；
The processing unit includes single-chip microcontroller；
The LORA wireless receiving circuit includes LORA antenna and LORA wireless receiving module, the LORA antenna by conducting wire with
The connection of LORA wireless receiving module；
The pulse output circuit includes DC high-voltage source module, output control circuit and pluse output circuit, the direct current
High-voltage power module, output control circuit and pluse output circuit are sequentially connected with；
One end of the single-chip microcontroller is connect with the LORA wireless receiving module, and the other end of the single-chip microcontroller and the output are controlled
Circuit connection processed.
2. the superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge, feature exist as described in claim 1
In the processing unit further include: external trigger module, key and liquid crystal display, the external trigger module, key, liquid crystal
Show that device is connect with the single-chip microcontroller respectively.
3. the superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge, feature exist as described in claim 1
In the single-chip microcontroller is also connect with the DC high-voltage source module.
4. the superfrequency hand-held steep-sided pulse generator a method according to any one of claims 1-3 applied to the test of GIS partial discharge, special
Sign is that the single-chip microcontroller uses STM32F103 processor.
5. the superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge, feature exist as described in claim 1
In the LORA wireless receiving module uses SX127X chip.
6. the superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge, feature exist as described in claim 1
In the pluse output circuit includes that the output end of current-limiting resistance R1, relay and output resistance R2, the current-limiting resistance R1 are logical
The input terminal for crossing conducting wire and relay connects, and the output end of the relay is connected by the input terminal of conducting wire and output resistance R2
It connects, the output end of the output resistance R2 is connect by power supply with the input terminal of current-limiting resistance R1.
7. the superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge, feature exist as claimed in claim 6
In the relay selects mercury relay.
8. the superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge, feature exist as claimed in claim 6
In the R1 is 1M Ω, and the R2 is 200 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821590606.5U CN209231453U (en) | 2018-09-28 | 2018-09-28 | A kind of superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821590606.5U CN209231453U (en) | 2018-09-28 | 2018-09-28 | A kind of superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209231453U true CN209231453U (en) | 2019-08-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821590606.5U Active CN209231453U (en) | 2018-09-28 | 2018-09-28 | A kind of superfrequency hand-held steep-sided pulse generator applied to the test of GIS partial discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209231453U (en) |
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2018
- 2018-09-28 CN CN201821590606.5U patent/CN209231453U/en active Active
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