CN208421141U - A partial discharge signal simulation device with temperature protection and overvoltage protection - Google Patents

A partial discharge signal simulation device with temperature protection and overvoltage protection Download PDF

Info

Publication number
CN208421141U
CN208421141U CN201821034768.0U CN201821034768U CN208421141U CN 208421141 U CN208421141 U CN 208421141U CN 201821034768 U CN201821034768 U CN 201821034768U CN 208421141 U CN208421141 U CN 208421141U
Authority
CN
China
Prior art keywords
electrically connected
resistor
relay
capacitor
output end
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
Application number
CN201821034768.0U
Other languages
Chinese (zh)
Inventor
唐琪
吴焯军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Power Grid Co Ltd
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Original Assignee
Guangdong Power Grid Co Ltd
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Power Grid Co Ltd, Foshan Power Supply Bureau of Guangdong Power Grid Corp filed Critical Guangdong Power Grid Co Ltd
Priority to CN201821034768.0U priority Critical patent/CN208421141U/en
Application granted granted Critical
Publication of CN208421141U publication Critical patent/CN208421141U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Control Of Voltage And Current In General (AREA)

Abstract

The utility model discloses a kind of Partial discharge signal simulator with temperature protection and overvoltage protection, including micro-chip processor, drive amplification circuit, constant pressure source, charging resistor, discharge resistance, the first relay, the second relay, first capacitor, temperature detecting module, temperature feedback module, Zenith tracking module and third relay.The beneficial effect of technical solutions of the utility model is: 1, having temperature detecting module and temperature feedback module, be adjusted for the internal temperature of detection device, and according to internal temperature, ensure the product safety of Partial discharge signal simulator, extend life of product；2, since the element in temperature detecting module belongs to low cost low-power consumption element, it is possible to be integrated on the circuit board of very little, to just not impacting substantially in the volume of device, cost payout is also very low；3, have the function of Zenith tracking, can effectively prevent since Partial discharge signal overtension two causes subsequent conditioning circuit to damage.

Description

A kind of Partial discharge signal simulator with temperature protection and overvoltage protection
Technical field
The utility model relates to voltage diagnostic device fields, have temperature protection and overvoltage more particularly, to one kind The Partial discharge signal simulator of protection.
Background technique
Partial discharge test sensitivity with higher.For the high voltage electric equipment newly designed and manufactured, pass through part Discharge measuring can find the weak link in insulation in time, prevent the use of the mistake and material in design and manufacturing process not When being a kind of important method for identifying product insulation or equipment operational reliability, it can find that pressure test can not find sets Standby defect.Shelf depreciation test is one of the big event of current power equipment preventive trial.
In GIS equipment partial discharge test, when shelf depreciation occurring inside GIS device, first have to be tested by partial discharge The sensor of instrument receives, then is analyzed and handled by partial discharge tester.Since present partial discharge test sensor producer is numerous, Product is very different, and for many sensors because of quality problems, sensitivity is very low, just may cause following problems i.e. in this way:
When GIS device using this sensor to receive Partial discharge signal when, partial discharge has occurred inside GIS device, may The sensor can not detect this signal.
High frequency section in GIS partial discharge tester general test Partial discharge signal, and high-frequency signal can decline in communication process Subtract bigger, when partial discharge occurring inside the GIS device, probably due to the installation position of sensor is farther out, and can't detect this Partial discharge signal.
Partial discharge signal simulator is had developed regarding to the issue above, the superfrequency part of the device analog high voltage amplitude Electric discharge, for detecting whether GIS partial discharge test sensor can work normally.However, due to existing Partial discharge signal simulator There are a large amount of high voltage devices for inside, and capacitor charging loop current is larger, so being easy to cause fever phenomenon.Meanwhile Due to inside constant pressure source be possible to that peak overvoltage signal can be generated, internal electronic component is formed and is destroyed.
Utility model content
The utility model overcomes the fever of existing GIS partial discharge tester and haves the defects that overvoltage, provides one kind The new Partial discharge signal simulator with temperature protection and overvoltage protection.The utility model is by utilizing temperature detecting module It is realized with temperature feedback module and the temperature inside device is controlled, effectively prevent causing to generate heat since device internal temperature is excessively high The problem of damage；Have the function of Zenith tracking simultaneously, can effectively prevent since Partial discharge signal overtension two leads to subsequent electricity Path loss is bad.
In order to solve the above technical problems, the technical solution of the utility model is as follows:
A kind of Partial discharge signal simulator with temperature protection and overvoltage protection, including micro-chip processor, driving are put Big circuit, constant pressure source, charging resistor, discharge resistance, the first relay, the second relay, first capacitor, temperature detecting module, Temperature feedback module, Zenith tracking module and third relay, wherein
Temperature detecting module is used to detect the internal temperature of Partial discharge signal simulator, and relevant data is transferred to micro- Handle chip；
Temperature feedback module is used to detect the internal temperature of Partial discharge signal simulator beyond threshold when temperature detecting module When value, negative-feedback is carried out to device, realizes the protection to Partial discharge signal simulator；
First output end of micro-chip processor is electrically connected with the input terminal of driving circuit；
The second output terminal of micro-chip processor is electrically connected with the control terminal of third relay；
The output end of drive amplification circuit is electrically connected with the control terminal of the first relay；
The output end of drive amplification circuit is electrically connected with the control terminal of the second relay；
The action logic of first relay is opposite with the second actuating of relay logic；
First relay is normally off, and the second relay is normally open；
The output end of constant pressure source is electrically connected with one end of charging resistor；
The output end of constant pressure source is electrically connected with the input terminal of voltage detection module；
The output end of voltage detection module is electrically connected with the input terminal of micro-chip processor；
The other end of charging resistor is electrically connected with one end of the switch-side of the first relay；
The other end of the switch-side of first relay is electrically connected with one end of first capacitor；
The other end of first capacitor is grounded；
The other end of the switch-side of first relay is electrically connected with one end of the switch-side of the second relay；
The other end of the switch-side of second relay is electrically connected with one end of discharge resistance；
One end of the switch-side of third relay connects power supply；
The other end of the switch-side of third relay is electrically connected with the input terminal of constant pressure source；
The other end of discharge resistance is grounded.
Utility model works process is as follows:
Square-wave signal is exported by micro-chip processor control signal generator, power amplification is carried out by drive amplification circuit After control the first relay and the second relay is cut-off, due to the work-based logic phase of the first relay and the second relay Instead, therefore when the first relay is closed, and the second relay disconnects, constant pressure source is charged by charging resistor to capacitor；When First relay disconnects, and when the second relay is closed, the capacitor after charging discharge by discharge resistance, thus simulation one The generating process of a shelf depreciation, tests sensor.Meanwhile temperature is carried out to device inside by temperature detecting module Detection, micro-chip processor obtain the temperature data inside about device by the data of analysis temperature detecting module.When temperature is examined When survey module detects the internal temperature of Partial discharge signal simulator beyond threshold value, device is carried out by temperature feedback module negative Feedback realizes the protection to Partial discharge signal simulator.Meanwhile it being carried out by output voltage of the voltage detection module to constant pressure source Detection, will test result and is sent to micro-chip processor.When the output voltage of micro-chip processor detection constant pressure source exceeds threshold value, control Third relay processed disconnects, and cuts off the power end of constant pressure source, realizes overvoltage protection.
In a preferred solution, the temperature detecting module include thermistor, first resistor, second resistance, 3rd resistor, the second capacitor, third capacitor, wherein
The third output end of micro-chip processor is electrically connected with one end of thermistor；
The third output end of micro-chip processor is electrically connected with one end of first resistor；
The first input end of micro-chip processor is electrically connected with the other end of first resistor；
The other end of second resistance is electrically connected with one end of the second capacitor；
The other end of second capacitor is grounded；
The other end of thermistor is electrically connected with one end of second resistance；
The other end of second resistance is electrically connected with the second input terminal of micro-chip processor；
The other end of second resistance is electrically connected with one end of third capacitor；
The other end of third capacitor is grounded；
The other end of thermistor is electrically connected with the 5th output end of micro-chip processor, the 5th output end of micro-chip processor Export positive voltage；
The other end of thermistor is electrically connected with one end of 3rd resistor；
The other end of 3rd resistor is electrically connected with the 4th output end of micro-chip processor, the 4th output end of micro-chip processor Export negative voltage.
In this preferred embodiment, the third output end of micro-chip processor exports positive voltage, the 4th output end of micro-chip processor Negative voltage is exported, the third output end of micro-chip processor, the 4th output end of micro-chip processor and 3rd resistor composition shunt back Road, to determine that the second output terminal of micro-chip processor enters the electric current of the first input end of micro-chip processor.Micro-chip processor First input end and the second input terminal of micro-chip processor be electrically connected respectively with the both ends of thermistor, micro-chip processor according to The voltage of second input end measuring thermistor of the first input end and micro-chip processor of micro-chip processor, thus obtain about The resistance value of thermistor obtains the temperature inside device indirectly.
In a preferred solution, temperature feedback module includes the 4th relay, the 4th resistance, the 5th resistance, the 6th Resistance, the 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the first filter capacitor, the second filter capacitor, third filtered electrical Appearance, the 4th filter capacitor, the first operational amplifier, Current Voltage conversion module, the first PNP triode, magnetic bead and linear regulation Device, wherein
6th output end of micro-chip processor is electrically connected with one end of the 4th resistance；
The other end of 4th resistance is electrically connected with one end of the 5th resistance；
7th output end of micro-chip processor is electrically connected with one end of the 6th resistance；
The other end of 6th resistance is electrically connected with one end of the first filter capacitor；
The other end of first filter capacitor is grounded；
The other end of 6th resistance is electrically connected with one end of the 7th resistance；
The other end of 7th resistance is electrically connected with one end of the second filter capacitor；
The other end of second filter capacitor is grounded；
The other end of 7th resistance is electrically connected with one end of the 8th resistance；
The other end of 8th resistance is electrically connected with one end of third filter capacitor；
The other end of third filter capacitor is grounded；
The other end of 8th resistance is electrically connected with the inverting input terminal of the first operational amplifier；
The other end of 4th resistance is electrically connected with the non-inverting input terminal of the first operational amplifier；
The other end of 5th resistance is electrically connected with one end of the tenth resistance；
The power input of first operational amplifier connects digital power；
The output end of first operational amplifier is electrically connected with one end of the 9th resistance；
The other end of 9th resistance is electrically connected with the ground level of the first PNP triode；
The emitting stage of first PNP triode is grounded；
The emitting stage of first PNP triode is electrically connected with the other end of the tenth resistance；
The current collection grade of first PNP triode is electrically connected with the first input end of Current Voltage conversion module；
The other end of 5th resistance is electrically connected with the second input terminal of Current Voltage conversion module；
The first input end of Current Voltage conversion module is electrically connected with the input terminal of linear regulator；
The output end of linear regulator is as digital power, one end of the output end of linear regulator and the 4th filter capacitor Electrical connection；
The other end of 4th filter capacitor is grounded；
The output end of linear regulator is electrically connected with one end of magnetic bead；
The other end of magnetic bead is as analog power；
The analog power port of micro-chip processor is electrically connected with the other end of magnetic bead；
7th output end of micro-chip processor is electrically connected with the control terminal of the 4th relay；
One end of the switch-side of 4th relay is electrically connected with mobile power source；
The other end of the switch-side of 4th relay is electrically connected with the analog power port of micro-chip processor.
In this preferred embodiment, it is the 6th defeated to modulate micro-chip processor by the data of temperature detecting module for micro-chip processor The signal pulsewidth of outlet, so as to adjust the voltage value of the tenth resistance.The output signal of 6th output end of micro-chip processor is passed through Three rank RC filter circuits (are filtered by the 6th resistance, the 7th resistance, the 8th resistance, the first filter capacitor, the second filter capacitor, third Wave capacitor forms three rank RC filter circuits) after be input to the inverting input terminal of the first operational amplifier, the 5th of micro-chip processor the The output signal of output end is input to the non-inverting input terminal of the first operational amplifier as comparison voltage, and then output signal is passed through The transistor amplifier being made of the first PNP triode, the first of transistor amplifier input current voltage transformation module Input terminal.Then it powers by Current Voltage conversion module to linear regulator.Analog power when due to micro-chip processor starting It is powered by mobile power source, lithium battery is powered by third relay (normally off) to micro-chip processor.Then micro-chip processor Determine that the temperature of thermistor whether in normal range (NR), is controlled if in normal range (NR) by the 6th output end of micro-chip processor Linear regulator is powered to micro-chip processor, while giving the 4th relay power by the 7th output end of micro-chip processor, is broken The switch-side of the 4th relay is opened, power supply of the mobile power source to micro-chip processor is disconnected.
In a preferred solution, the voltage detection module includes eleventh resistor, twelfth resistor, the 13rd Resistance, the 14th resistance, the 15th resistance, the 16th resistance, the first operational amplifier and low-pass filter circuit, wherein
Input terminal of the one end of eleventh resistor as voltage detection module, the other end of eleventh resistor and the 12nd electricity One end of resistance is electrically connected；
The other end of twelfth resistor is grounded；
One end of eleventh resistor is electrically connected with one end of thirteenth resistor；
The other end of eleventh resistor is electrically connected with one end of the 14th resistance；
The other end of thirteenth resistor is electrically connected with the non-inverting input terminal of the first operational amplifier；
The other end of 14th resistance is electrically connected with the inverting input terminal of the first operational amplifier；
The other end of thirteenth resistor is electrically connected with one end of the 15th resistance；
The other end of 14th resistance is electrically connected with one end of the 16th resistance；
The other end of 15th resistance is grounded；
The other end of 16th resistance is electrically connected with the output end of the first operational amplifier；
The output end of first operational amplifier is electrically connected with the input terminal of low-pass filter circuit, the output of low-pass filter circuit Hold the output end as voltage detection module.
In a preferred solution, low-pass filter circuit includes the 4th capacitor, the 5th capacitor, the 17th resistance, the tenth Eight resistance, the 19th resistance, second operational amplifier, wherein
Input terminal of the one end of 17th resistance as low-pass filter, the other end and the 18th resistance of the 17th resistance One end electrical connection；
The other end of 17th resistance is electrically connected with one end of the 4th capacitor；
The other end of 18th resistance is electrically connected with one end of the 5th capacitor；
The other end of 5th capacitor is grounded；
The other end of 4th capacitor is electrically connected with the output end of second operational amplifier；
The other end of 18th resistance is electrically connected with the non-inverting input terminal of second operational amplifier；
The inverting input terminal of second operational amplifier is electrically connected with the output end of second operational amplifier；
The output end of second operational amplifier is electrically connected with one end of the 19th resistance；
Output end of the other end of 19th resistance as low-pass filter.
In a preferred solution, the constant pressure source includes in-phase proportion computing circuit, bleeder circuit, proportional current Source and triode, wherein
Signal output end of the output end of proportion current source as superfrequency partial enlargement signal generator,
The output end of bleeder circuit is electrically connected by resistance with the inverting input terminal of in-phase proportion computing circuit；
The output end of proportion current source is electrically connected by resistance with the non-inverting input terminal of in-phase proportion computing circuit；
The output end of in-phase proportion computing circuit is electrically connected by resistance with the base stage of triode；
The output end of proportion current source is electrically connected with the collector of triode.
In a preferred solution, the drive amplification circuit includes the 20th resistance, the 21st resistance, second 12 resistance, first diode, the second diode, NPN triode, PNP triode, wherein
Input terminal of the cathode of first diode as drive amplification circuit, the anode of first diode and the 5th resistance One end electrical connection；
The other end of 21st resistance is electrically connected with the ground level of NPN triode；
The other end of 21st resistance is electrically connected with one end of the 20th resistance；
Another termination positive supply of 20th resistance；
The collector of NPN triode connects positive supply；
The emitter of NPN triode is electrically connected with the emitter of PNP triode, and the emitter of NPN triode is as driving The output end of amplifying circuit；
The cathode of first diode is electrically connected with the anode of the second diode；
The cathode of second diode is electrically connected with the base stage of PNP triode；
The cathode of second diode is electrically connected with one end of the 20th resistance；
Another termination negative supply of 20th resistance；
The collector of PNP triode connects negative supply.
In this preferred embodiment, drive amplification circuit is for improving output power.
In a preferred solution, the Partial discharge signal simulator further includes display module, the display mould The input terminal of block is electrically connected with the 8th output end of micro-chip processor.
In this preferred embodiment, phase of the display module for the output voltage of temperature information and constant pressure source inside display device Close information.
In a preferred solution, the Partial discharge signal simulator further includes data storage, the data The input terminal of memory is electrically connected with the 9th output end of micro-chip processor.
In this preferred embodiment, data storage is used for the output voltage of temperature information and constant pressure source inside storage device Relevant information.
In a preferred solution, the Partial discharge signal simulator further includes wireless communication module, the nothing The input terminal of line communication module is electrically connected with the tenth output end of micro-chip processor.
In this preferred embodiment, wireless communication module be used for by the temperature information inside device be sent to a distant place system or On the handheld terminal of staff.
In a preferred solution, the first capacitor is high frequency ceramic disc capacitor.
In a preferred solution, first relay and the second relay are 5V relays.
In this preferred embodiment, contact damage may cause by relay tip by high current using midget relay, So needing 5V relay.
Compared with prior art, the beneficial effect of technical solutions of the utility model is:
1, the superfrequency shelf depreciation of high voltage amplitude is simulated, whether can be normal for detecting GIS partial discharge test sensor Work, the effective guarantee safety of power equipment；
2, there is temperature detecting module and temperature feedback module, for the internal temperature of detection device, and according to internal temperature Degree is adjusted, and ensures the product safety of Partial discharge signal simulator, extends life of product；
3, since the element in temperature detecting module belongs to low cost low-power consumption element, it is possible to be integrated in very little On circuit board, to just not impacting substantially in the volume of device, cost payout is also very low；
4, have the function of Zenith tracking, can effectively prevent since Partial discharge signal overtension two causes subsequent conditioning circuit to damage It is bad.
Detailed description of the invention
Fig. 1 is the module map of embodiment.
Fig. 2 is the constant voltage power supply circuit figure of embodiment.
Fig. 3 is the low-pass filter circuit figure of embodiment.
Fig. 4 is the temperature detecting module of embodiment and the exemplary diagram of temperature feedback module.
Label declaration: 1. input terminals；2. operational amplifier；3. output end.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；
In order to better illustrate this embodiment, the certain components of attached drawing have omission, zoom in or out, and do not represent actual product Size；
To those skilled in the art, it is to be understood that certain known features and its explanation, which may be omitted, in attached drawing 's.
The technical solution of the utility model is described further with reference to the accompanying drawings and examples.
As shown in Figure 1, a kind of Partial discharge signal simulator with temperature protection and overvoltage protection, including it is enhanced STM32 chip, drive amplification circuit, constant pressure source, charging resistor, discharge resistance, the first 5V relay, the 2nd 5V relay, Three relays, high frequency ceramic disc capacitor, temperature detecting module, temperature feedback module, LCD display, TF card and 2G communication module, In,
Temperature detecting module is used to detect the internal temperature of Partial discharge signal simulator, and relevant data are transferred to increasing Strong type STM32 chip；
Temperature feedback module is used to detect the internal temperature of Partial discharge signal simulator beyond threshold when temperature detecting module When value, negative-feedback is carried out to device, realizes the protection to Partial discharge signal simulator；
First output end of enhanced STM32 chip is electrically connected with the input terminal of driving circuit；
The output end of drive amplification circuit is electrically connected with the control terminal of the first 5V relay；
The output end of drive amplification circuit is electrically connected with the control terminal of the 2nd 5V relay；
The action logic of first 5V relay is opposite with the 2nd 5V actuating of relay logic；
First 5V relay is normally off, and the second relay is normally open；
The output end of constant pressure source is electrically connected with one end of charging resistor；
The output end of constant pressure source is electrically connected with the input terminal of voltage detection module；
The output end of voltage detection module is electrically connected with the first input end of enhanced STM32 chip；
The other end of charging resistor is electrically connected with one end of the switch-side of the first relay；
The other end of the switch-side of first 5V relay is electrically connected with one end of high frequency ceramic disc capacitor；
The other end of high frequency ceramic disc capacitor is grounded；
The other end of the switch-side of first 5V relay is electrically connected with one end of the switch-side of the 2nd 5V relay；
The other end of switch-side of 2nd 5V relay is electrically connected with one end of discharge resistance；
One end of the switch-side of 3rd 5V relay connects power supply；
The other end of switch-side of 3rd 5V relay is electrically connected with the input terminal of constant pressure source；
The other end of discharge resistance is grounded；
The input terminal of LCD display is electrically connected with the second output terminal of enhanced STM32 chip.
The input terminal of TF card is electrically connected with the third output end of enhanced STM32 chip；
The input terminal of 2G communication module is electrically connected with the 4th output end of enhanced STM32 chip；
5th output end of enhanced STM32 chip is electrically connected with the control terminal of third relay；
One end of the switch-side of third relay connects power supply；
The other end of the switch-side of third relay is electrically connected with the input terminal of constant pressure source.
Wherein, temperature detecting module includes thermistor, first resistor, second resistance, 3rd resistor, the second capacitor, Three capacitors, wherein
6th output end of enhanced STM32 chip is electrically connected with one end of thermistor；
6th output end of enhanced STM32 chip is electrically connected with one end of first resistor；
Second input terminal of enhanced STM32 chip is electrically connected with the other end of first resistor；
The other end of second resistance is electrically connected with one end of the second capacitor；
The other end of second capacitor is grounded；
The other end of thermistor is electrically connected with one end of second resistance；
The third input terminal of the other end of second resistance and enhanced STM32 chip；
The other end of second resistance is electrically connected with one end of third capacitor；
The other end of third capacitor is grounded；
The other end of thermistor is electrically connected with the 8th output end of enhanced STM32 chip, enhanced STM32 chip 8th output end exports positive voltage；
The other end of thermistor is electrically connected with one end of 3rd resistor；
The other end of 3rd resistor is electrically connected with the 7th output end of enhanced STM32 chip, enhanced STM32 chip 7th output end exports negative voltage.
Wherein, temperature feedback module include the 4th relay, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, 8th resistance, the 9th resistance, the tenth resistance, the first filter capacitor, the second filter capacitor, third filter capacitor, the 4th filtered electrical Appearance, the first operational amplifier, Current Voltage conversion module, the first PNP triode, magnetic bead and linear regulator, wherein
9th output end of enhanced STM32 chip is electrically connected with one end of the 4th resistance；
The other end of 4th resistance is electrically connected with one end of the 5th resistance；
Tenth output end of enhanced STM32 chip is electrically connected with one end of the 6th resistance；
The other end of 6th resistance is electrically connected with one end of the first filter capacitor；
The other end of first filter capacitor is grounded；
The other end of 6th resistance is electrically connected with one end of the 7th resistance；
The other end of 7th resistance is electrically connected with one end of the second filter capacitor；
The other end of second filter capacitor is grounded；
The other end of 7th resistance is electrically connected with one end of the 8th resistance；
The other end of 8th resistance is electrically connected with one end of third filter capacitor；
The other end of third filter capacitor is grounded；
The other end of 8th resistance is electrically connected with the inverting input terminal of the first operational amplifier；
The other end of 4th resistance is electrically connected with the non-inverting input terminal of the first operational amplifier；
The other end of 5th resistance is electrically connected with one end of the tenth resistance；
The power input of first operational amplifier connects digital power；
The output end of first operational amplifier is electrically connected with one end of the 9th resistance；
The other end of 9th resistance is electrically connected with the ground level of the first PNP triode；
The emitting stage of first PNP triode is grounded；
The emitting stage of first PNP triode is electrically connected with the other end of the tenth resistance；
The current collection grade of first PNP triode is electrically connected with the first input end of Current Voltage conversion module；
The other end of 5th resistance is electrically connected with the second input terminal of Current Voltage conversion module；
The first input end of Current Voltage conversion module is electrically connected with the input terminal of linear regulator；
The output end of linear regulator is as digital power, one end of the output end of linear regulator and the 4th filter capacitor Electrical connection；
The other end of 4th filter capacitor is grounded；
The output end of linear regulator is electrically connected with one end of magnetic bead；
The other end of magnetic bead is as analog power；
The analog power port of enhanced STM32 chip is electrically connected with the other end of magnetic bead；
Tenth output end of enhanced STM32 chip is electrically connected with the control terminal of the 4th relay；
One end of the switch-side of 4th relay is electrically connected with mobile power source；
The other end of the switch-side of 4th relay is electrically connected with the analog power port of enhanced STM32 chip.
Fig. 4 is the temperature detecting module of embodiment and the exemplary diagram of temperature feedback module.
Wherein, as shown in Fig. 2, constant pressure source includes in-phase proportion computing circuit, bleeder circuit, proportion current source and three poles Pipe, wherein
Signal output end of the output end of proportion current source as superfrequency partial enlargement signal generator,
The output end of bleeder circuit is electrically connected by resistance with the inverting input terminal of in-phase proportion computing circuit；
The output end of proportion current source is electrically connected by resistance with the non-inverting input terminal of in-phase proportion computing circuit；
The output end of in-phase proportion computing circuit is electrically connected by resistance with the base stage of triode；
The output end of proportion current source is electrically connected with the collector of triode.
Wherein, voltage detection module includes eleventh resistor, twelfth resistor, thirteenth resistor, the 14th resistance, the tenth Five resistance, the 16th resistance, the first operational amplifier and low-pass filter circuit, wherein
Input terminal of the one end of eleventh resistor as voltage detection module, the other end of eleventh resistor and the 12nd electricity One end of resistance is electrically connected；
The other end of twelfth resistor is grounded；
One end of eleventh resistor is electrically connected with one end of thirteenth resistor；
The other end of eleventh resistor is electrically connected with one end of the 14th resistance；
The other end of thirteenth resistor is electrically connected with the non-inverting input terminal of the first operational amplifier；
The other end of 14th resistance is electrically connected with the inverting input terminal of the first operational amplifier；
The other end of thirteenth resistor is electrically connected with one end of the 15th resistance；
The other end of 14th resistance is electrically connected with one end of the 16th resistance；
The other end of 15th resistance is grounded；
The other end of 16th resistance is electrically connected with the output end of the first operational amplifier；
The output end of first operational amplifier is electrically connected with the input terminal of low-pass filter circuit, the output of low-pass filter circuit Hold the output end as voltage detection module.
Wherein, as shown in figure 3, low-pass filter circuit includes the 4th capacitor, the 5th capacitor, the 17th resistance, the 18th electricity Resistance, the 19th resistance, second operational amplifier, wherein
Input terminal 1 of the one end of 17th resistance as low-pass filter, the other end of the 17th resistance and the 18th electricity One end of resistance is electrically connected；
The other end of 17th resistance is electrically connected with one end of the 4th capacitor；
The other end of 18th resistance is electrically connected with one end of the 5th capacitor；
The other end of 5th capacitor is grounded；
The other end of 4th capacitor is electrically connected with the output end of second operational amplifier 3；
The other end of 18th resistance is electrically connected with the non-inverting input terminal of second operational amplifier 3；
The inverting input terminal of second operational amplifier 3 is electrically connected with the output end of second operational amplifier 3；
The output end of second operational amplifier 3 is electrically connected with one end of the 19th resistance；
Output end 2 of the other end of 19th resistance as low-pass filter.
Wherein, drive amplification circuit include the 20th resistance, the 21st resistance, the 22nd resistance, first diode, Second diode, NPN triode, PNP triode, wherein
Input terminal of the cathode of first diode as drive amplification circuit, the anode of first diode and the 5th resistance One end electrical connection；
The other end of 21st resistance is electrically connected with the ground level of NPN triode；
The other end of 21st resistance is electrically connected with one end of the 20th resistance；
Another termination positive supply of 20th resistance；
The collector of NPN triode connects positive supply；
The emitter of NPN triode is electrically connected with the emitter of PNP triode, and the emitter of NPN triode is as driving The output end of amplifying circuit；
The cathode of first diode is electrically connected with the anode of the second diode；
The cathode of second diode is electrically connected with the base stage of PNP triode；
The cathode of second diode is electrically connected with one end of the 20th resistance；
Another termination negative supply of 20th resistance；
The collector of PNP triode connects negative supply.
The present embodiment course of work:
Square-wave signal is exported by enhanced STM32 chip, controls the after carrying out power amplification by drive amplification circuit One 5V relay and the 2nd 5V relay are cut-off.Due to the work-based logic phase of the first 5V relay and the 2nd 5V relay Instead, therefore when the first 5V relay is closed, and the 2nd 5V relay disconnects, constant pressure source is filled by charging resistor to capacitor Electricity；When the first 5V relay disconnects, and the 2nd 5V relay is closed, the capacitor after charging is discharged by discharge resistance, from And the generating process of a shelf depreciation is simulated, sensor is tested.Meanwhile by temperature detecting module to device inside Temperature detection is carried out, enhanced STM32 chip obtains the temperature inside about device by the data of analysis temperature detecting module Data.LCD display is for the temperature information inside display device, and for TF card for the temperature information inside storage device, 2G is logical Letter module is used to for the temperature information inside device being sent to the handheld terminal of the staff in a distant place.Meanwhile passing through voltage Detection module detects the output voltage of constant pressure source, will test result and is sent to enhanced STM32 chip.When enhanced When the output voltage that STM32 chip detects constant pressure source exceeds threshold value, control third relay is disconnected, and cuts off the power supply of constant pressure source Overvoltage protection is realized at end.Meanwhile being detected by output voltage of the voltage detection module to constant pressure source, it will test result It is sent to enhanced STM32 chip.When the output voltage of enhanced STM32 chip detection constant pressure source exceeds threshold value, control the Three relays disconnect, and cut off the power end of constant pressure source, realize overvoltage protection.
The same or similar label correspond to the same or similar components；
The terms describing the positional relationship in the drawings are only for illustration, should not be understood as the limitation to this patent；
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in Within the protection scope of the utility model claims.

Claims (9)

1.一种具有温度保护和过电压保护的局放信号模拟装置，其特征在于，包括微处理芯片、驱动放大电路、恒压源、充电电阻、放电电阻、第一继电器、第二继电器、第一电容、温度检测模块、温度反馈模块、过电压检测模块和第三继电器，其中，1. A partial discharge signal simulation device with temperature protection and overvoltage protection, characterized in that it comprises a microprocessing chip, a drive amplifying circuit, a constant voltage source, a charging resistor, a discharging resistor, a first relay, a second relay, a a capacitor, a temperature detection module, a temperature feedback module, an overvoltage detection module and a third relay, wherein, 所述的温度检测模块用于检测局放信号模拟装置的内部温度，并将相关的数据传输给微处理芯片；The temperature detection module is used to detect the internal temperature of the partial discharge signal simulation device, and transmit the relevant data to the microprocessor chip; 所述的温度反馈模块用于当温度检测模块检测出局放信号模拟装置的内部温度超出阈值时，对装置实行负反馈，实现对局放信号模拟装置的保护；The temperature feedback module is used for performing negative feedback on the device when the temperature detection module detects that the internal temperature of the partial discharge signal simulation device exceeds the threshold, so as to realize the protection of the partial discharge signal simulation device; 所述的微处理芯片的第一输出端与驱动电路的输入端电连接；The first output end of the micro-processing chip is electrically connected to the input end of the driving circuit; 所述的微处理芯片的第二输出端与第三继电器的控制端电连接；The second output terminal of the micro-processing chip is electrically connected to the control terminal of the third relay; 所述的驱动放大电路的输出端与第一继电器的控制端电连接；The output end of the drive amplifying circuit is electrically connected with the control end of the first relay; 所述的驱动放大电路的输出端与第二继电器的控制端电连接；The output end of the drive amplifying circuit is electrically connected to the control end of the second relay; 所述的第一继电器的动作逻辑与第二继电器动作逻辑相反；The action logic of the first relay is opposite to the action logic of the second relay; 所述的第一继电器是常闭状态，第二继电器是常开状态；The first relay is in a normally closed state, and the second relay is in a normally open state; 所述的恒压源的输出端与充电电阻的一端电连接；The output end of the constant voltage source is electrically connected to one end of the charging resistor; 所述的恒压源的输出端与电压检测模块的输入端电连接；The output end of the constant voltage source is electrically connected to the input end of the voltage detection module; 所述的电压检测模块的输出端与微处理芯片的输入端电连接；The output end of the voltage detection module is electrically connected with the input end of the micro-processing chip; 所述的充电电阻的另一端与第一继电器的开关侧的一端电连接；The other end of the charging resistor is electrically connected to one end of the switch side of the first relay; 所述的第一继电器的开关侧的另一端与第一电容的一端电连接；The other end of the switch side of the first relay is electrically connected to one end of the first capacitor; 所述的第一电容的另一端接地；The other end of the first capacitor is grounded; 所述的第一继电器的开关侧的另一端与第二继电器的开关侧的一端电连接；The other end of the switch side of the first relay is electrically connected to one end of the switch side of the second relay; 所述的第二继电器的开关侧的另一端与放电电阻的一端电连接；The other end of the switch side of the second relay is electrically connected to one end of the discharge resistor; 所述的第三继电器的开关侧的一端连接电源；One end of the switch side of the third relay is connected to the power supply; 所述的第三继电器的开关侧的另一端与恒压源的输入端电连接；The other end of the switch side of the third relay is electrically connected to the input end of the constant voltage source; 所述的放电电阻的另一端接地；The other end of the discharge resistor is grounded; 所述的温度反馈模块包括第四继电器、第四电阻、第五电阻、第六电阻、第七电阻、第八电阻、第九电阻、第十电阻、第一滤波电容、第二滤波电容、第三滤波电容、第四滤波电容、第一运算放大器、电流电压转换模块、第一PNP三极管、磁珠和线性调节器，其中，The temperature feedback module includes a fourth relay, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, a first filter capacitor, a second filter capacitor, and a first filter capacitor. Three filter capacitors, a fourth filter capacitor, a first operational amplifier, a current-voltage conversion module, a first PNP triode, a magnetic bead, and a linear regulator, wherein, 所述的微处理芯片的第六输出端与第四电阻的一端电连接；The sixth output end of the micro-processing chip is electrically connected to one end of the fourth resistor; 所述的第四电阻的另一端与第五电阻的一端电连接；The other end of the fourth resistor is electrically connected to one end of the fifth resistor; 所述的微处理芯片的第七输出端与第六电阻的一端电连接；The seventh output end of the micro-processing chip is electrically connected to one end of the sixth resistor; 所述的第六电阻的另一端与第一滤波电容的一端电连接；The other end of the sixth resistor is electrically connected to one end of the first filter capacitor; 所述的第一滤波电容的另一端接地；The other end of the first filter capacitor is grounded; 所述的第六电阻的另一端与第七电阻的一端电连接；The other end of the sixth resistor is electrically connected to one end of the seventh resistor; 所述的第七电阻的另一端与第二滤波电容的一端电连接；The other end of the seventh resistor is electrically connected to one end of the second filter capacitor; 所述的第二滤波电容的另一端接地；The other end of the second filter capacitor is grounded; 所述的第七电阻的另一端与第八电阻的一端电连接；The other end of the seventh resistor is electrically connected to one end of the eighth resistor; 所述的第八电阻的另一端与第三滤波电容的一端电连接；The other end of the eighth resistor is electrically connected to one end of the third filter capacitor; 所述的第三滤波电容的另一端接地；The other end of the third filter capacitor is grounded; 所述的第八电阻的另一端与第一运算放大器的反相输入端电连接；The other end of the eighth resistor is electrically connected to the inverting input end of the first operational amplifier; 所述的第四电阻的另一端与第一运算放大器的同相输入端电连接；The other end of the fourth resistor is electrically connected to the non-inverting input end of the first operational amplifier; 所述的第五电阻的另一端与第十电阻的一端电连接；The other end of the fifth resistor is electrically connected to one end of the tenth resistor; 所述的第一运算放大器的电源输入端连接数字电源；The power input end of the first operational amplifier is connected to a digital power supply; 所述的第一运算放大器的输出端与第九电阻的一端电连接；The output end of the first operational amplifier is electrically connected to one end of the ninth resistor; 所述的第九电阻的另一端与第一PNP三极管的基级电连接；The other end of the ninth resistor is electrically connected to the base stage of the first PNP transistor; 所述的第一PNP三极管的发射级接地；The transmitter stage of the first PNP triode is grounded; 所述的第一PNP三极管的发射级与第十电阻的另一端电连接；The emitter stage of the first PNP triode is electrically connected to the other end of the tenth resistor; 所述的第一PNP三极管的集电级与电流电压转换模块的第一输入端电连接；The collector stage of the first PNP transistor is electrically connected to the first input end of the current-voltage conversion module; 所述的第五电阻的另一端与电流电压转换模块的第二输入端电连接；The other end of the fifth resistor is electrically connected to the second input end of the current-voltage conversion module; 所述的电流电压转换模块的第一输入端与线性调节器的输入端电连接；The first input end of the current-voltage conversion module is electrically connected with the input end of the linear regulator; 所述的线性调节器的输出端作为数字电源，线性调节器的输出端与第四滤波电容的一端电连接；The output end of the linear regulator is used as a digital power supply, and the output end of the linear regulator is electrically connected to one end of the fourth filter capacitor; 所述的第四滤波电容的另一端接地；The other end of the fourth filter capacitor is grounded; 所述的线性调节器的输出端与磁珠的一端电连接；The output end of the linear regulator is electrically connected to one end of the magnetic bead; 所述的磁珠的另一端作为模拟电源；The other end of the magnetic bead is used as an analog power supply; 所述的微处理芯片的模拟电源端口与磁珠的另一端电连接；The analog power port of the microprocessing chip is electrically connected to the other end of the magnetic bead; 所述的微处理芯片的第七输出端与第四继电器的控制端电连接；The seventh output terminal of the micro-processing chip is electrically connected to the control terminal of the fourth relay; 所述的第四继电器的开关侧的一端与移动电源电连接；One end of the switch side of the fourth relay is electrically connected to the mobile power supply; 所述的第四继电器的开关侧的另一端与微处理芯片的模拟电源端口电连接。The other end of the switch side of the fourth relay is electrically connected to the analog power port of the microprocessor chip. 2.根据权利要求1所述的局放信号模拟装置，其特征在于，所述的温度检测模块包括热敏电阻、第一电阻、第二电阻、第三电阻、第二电容、第三电容，其中，2. The partial discharge signal simulation device according to claim 1, wherein the temperature detection module comprises a thermistor, a first resistor, a second resistor, a third resistor, a second capacitor, and a third capacitor, in, 所述的微处理芯片的第三输出端与热敏电阻的一端电连接；The third output end of the microprocessing chip is electrically connected to one end of the thermistor; 所述的微处理芯片的第三输出端与第一电阻的一端电连接；The third output end of the micro-processing chip is electrically connected to one end of the first resistor; 所述的微处理芯片的第一输入端与第一电阻的另一端电连接；The first input end of the micro-processing chip is electrically connected to the other end of the first resistor; 所述的第二电阻的另一端与第二电容的一端电连接；The other end of the second resistor is electrically connected to one end of the second capacitor; 所述的第二电容的另一端接地；The other end of the second capacitor is grounded; 所述的热敏电阻的另一端与第二电阻的一端电连接；The other end of the thermistor is electrically connected to one end of the second resistor; 所述的第二电阻的另一端与微处理芯片的第二输入端电连接；The other end of the second resistor is electrically connected to the second input end of the microprocessor chip; 所述的第二电阻的另一端与第三电容的一端电连接；The other end of the second resistor is electrically connected to one end of the third capacitor; 所述的第三电容的另一端接地；The other end of the third capacitor is grounded; 所述的热敏电阻的另一端与微处理芯片的第五输出端电连接，微处理芯片的第五输出端输出正电压；The other end of the thermistor is electrically connected to the fifth output end of the microprocessing chip, and the fifth output end of the microprocessing chip outputs a positive voltage; 所述的热敏电阻的另一端与第三电阻的一端电连接；The other end of the thermistor is electrically connected to one end of the third resistor; 所述的第三电阻的另一端与微处理芯片的第四输出端电连接，微处理芯片的第四输出端输出负电压。The other end of the third resistor is electrically connected to the fourth output end of the micro-processing chip, and the fourth output end of the micro-processing chip outputs a negative voltage. 3.根据权利要求1或2所述的局放信号模拟装置，其特征在于，所述的电压检测模块包括第十一电阻、第十二电阻、第十三电阻、第十四电阻、第十五电阻、第十六电阻、第一运算放大器和低通滤波电路，其中，3. The partial discharge signal simulation device according to claim 1 or 2, wherein the voltage detection module comprises an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a tenth resistor Five resistors, sixteenth resistors, a first operational amplifier and a low-pass filter circuit, wherein, 所述的第十一电阻的一端作为电压检测模块的输入端，第十一电阻的另一端与第十二电阻的一端电连接；One end of the eleventh resistor is used as the input end of the voltage detection module, and the other end of the eleventh resistor is electrically connected to one end of the twelfth resistor; 所述的第十二电阻的另一端接地；The other end of the twelfth resistor is grounded; 所述的第十一电阻的一端与第十三电阻的一端电连接；One end of the eleventh resistor is electrically connected to one end of the thirteenth resistor; 所述的第十一电阻的另一端与第十四电阻的一端电连接；The other end of the eleventh resistor is electrically connected to one end of the fourteenth resistor; 所述的第十三电阻的另一端与第一运算放大器的同相输入端电连接；The other end of the thirteenth resistor is electrically connected to the non-inverting input end of the first operational amplifier; 所述的第十四电阻的另一端与第一运算放大器的反相输入端电连接；The other end of the fourteenth resistor is electrically connected to the inverting input end of the first operational amplifier; 所述的第十三电阻的另一端与第十五电阻的一端电连接；The other end of the thirteenth resistor is electrically connected to one end of the fifteenth resistor; 所述的第十四电阻的另一端与第十六电阻的一端电连接；The other end of the fourteenth resistor is electrically connected to one end of the sixteenth resistor; 所述的第十五电阻的另一端接地；The other end of the fifteenth resistor is grounded; 所述的第十六电阻的另一端与第一运算放大器的输出端电连接；The other end of the sixteenth resistor is electrically connected to the output end of the first operational amplifier; 所述的第一运算放大器的输出端与低通滤波电路的输入端电连接，低通滤波电路的输出端作为电压检测模块的输出端。The output end of the first operational amplifier is electrically connected to the input end of the low-pass filter circuit, and the output end of the low-pass filter circuit serves as the output end of the voltage detection module. 4.根据权利要求3所述的局放信号模拟装置，其特征在于，所述的低通滤波电路包括第四电容、第五电容、第十七电阻、第十八电阻、第十九电阻、第二运算放大器，其中，4. The partial discharge signal simulation device according to claim 3, wherein the low-pass filter circuit comprises a fourth capacitor, a fifth capacitor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, second operational amplifier, where, 所述的第十七电阻的一端作为低通滤波器的输入端，第十七电阻的另一端与第十八电阻的一端电连接；One end of the seventeenth resistor is used as the input end of the low-pass filter, and the other end of the seventeenth resistor is electrically connected to one end of the eighteenth resistor; 所述的第十七电阻的另一端与第四电容的一端电连接；The other end of the seventeenth resistor is electrically connected to one end of the fourth capacitor; 所述的第十八电阻的另一端与第五电容的一端电连接；The other end of the eighteenth resistor is electrically connected to one end of the fifth capacitor; 所述的第五电容的另一端接地；The other end of the fifth capacitor is grounded; 所述的第四电容的另一端与第二运算放大器的输出端电连接；The other end of the fourth capacitor is electrically connected to the output end of the second operational amplifier; 所述的第十八电阻的另一端与第二运算放大器的同相输入端电连接；The other end of the eighteenth resistor is electrically connected to the non-inverting input end of the second operational amplifier; 所述的第二运算放大器的反相输入端与第二运算放大器的输出端电连接；The inverting input terminal of the second operational amplifier is electrically connected to the output terminal of the second operational amplifier; 所述的第二运算放大器的输出端与第十九电阻的一端电连接；The output end of the second operational amplifier is electrically connected to one end of the nineteenth resistor; 所述的第十九电阻的另一端作为低通滤波器的输出端。The other end of the nineteenth resistor is used as the output end of the low-pass filter. 5.根据权利要求1、2或4所述的局放信号模拟装置，其特征在于，所述的恒压源包括同相比例运算电路、分压电路、比例电流源和三极管，其中，5. The partial discharge signal simulation device according to claim 1, 2 or 4, wherein the constant voltage source comprises a same-phase proportional operation circuit, a voltage divider circuit, a proportional current source and a triode, wherein, 所述的比例电流源的输出端作为特高频局部放大信号发生器的信号输出端，The output end of the proportional current source is used as the signal output end of the UHF partial amplified signal generator, 所述的分压电路的输出端通过电阻与同相比例运算电路的反相输入端电连接；The output end of the voltage divider circuit is electrically connected with the inverting input end of the same-phase proportional operation circuit through a resistor; 所述的比例电流源的输出端通过电阻与同相比例运算电路的同相输入端电连接；The output end of the proportional current source is electrically connected with the non-inverting input end of the proportional operation circuit in the same phase through a resistor; 所述的同相比例运算电路的输出端通过电阻与三极管的基极电连接；The output end of the same-phase proportional arithmetic circuit is electrically connected to the base of the triode through a resistor; 所述的比例电流源的输出端与三极管的集电极电连接。The output end of the proportional current source is electrically connected to the collector of the triode. 6.根据权利要求5所述的局放信号模拟装置，其特征在于，所述的驱动放大电路包括第二十电阻、第二十一电阻、第二十二电阻、第一二极管、第二二极管、NPN三极管、PNP三极管，其中，6 . The partial discharge signal simulation device according to claim 5 , wherein the drive amplifying circuit comprises a twentieth resistor, a twenty-first resistor, a twenty-second resistor, a first diode, a first Two diodes, NPN transistors, PNP transistors, among which, 所述的第一二极管的阴极作为驱动放大电路的输入端，第一二极管的阳极与第五电阻的一端电连接；The cathode of the first diode is used as the input end of the drive amplifying circuit, and the anode of the first diode is electrically connected to one end of the fifth resistor; 所述的第二十一电阻的另一端与NPN三极管的基级电连接；The other end of the twenty-first resistor is electrically connected to the base level of the NPN triode; 所述的第二十一电阻的另一端与第二十电阻的一端电连接；The other end of the twenty-first resistor is electrically connected to one end of the twentieth resistor; 所述的第二十电阻的另一端接正电源；The other end of the twentieth resistor is connected to a positive power supply; 所述的NPN三极管的集电极接正电源；The collector of the NPN triode is connected to the positive power supply; 所述的NPN三极管的发射极与PNP三极管的发射极电连接，NPN三极管的发射极作为驱动放大电路的输出端；The emitter of the NPN triode is electrically connected to the emitter of the PNP triode, and the emitter of the NPN triode is used as the output end of the drive amplifying circuit; 所述的第一二极管的阴极与第二二极管的阳极电连接；the cathode of the first diode is electrically connected to the anode of the second diode; 所述的第二二极管的阴极与PNP三极管的基极电连接；The cathode of the second diode is electrically connected to the base of the PNP triode; 所述的第二二极管的阴极与第二十电阻的一端电连接；The cathode of the second diode is electrically connected to one end of the twentieth resistor; 所述的第二十电阻的另一端接负电源；The other end of the twentieth resistor is connected to a negative power supply; 所述的PNP三极管的集电极接负电源。The collector of the PNP triode is connected to the negative power supply. 7.根据权利要求1、2、4或6所述的局放信号模拟装置，其特征在于，所述的局放信号模拟装置还包括显示模块，所述的显示模块的输入端与微处理芯片的第八输出端电连接。7. The partial discharge signal simulation device according to claim 1, 2, 4 or 6, wherein the partial discharge signal simulation device further comprises a display module, the input end of the display module is connected to a microprocessing chip The eighth output terminal is electrically connected. 8.根据权利要求7所述的局放信号模拟装置，其特征在于，所述的局放信号模拟装置还包括数据存储器，所述的数据存储器的输入端与微处理芯片的第九输出端电连接。8 . The partial discharge signal simulation device according to claim 7 , wherein the partial discharge signal simulation device further comprises a data memory, and an input end of the data memory is electrically connected to the ninth output end of the microprocessor chip. 9 . connect. 9.根据权利要求1、2、4、6或8所述的局放信号模拟装置，其特征在于，所述的局放信号模拟装置还包括无线通信模块，所述的无线通信模块的输入端与微处理芯片的第十输出端电连接。9. The partial discharge signal simulation device according to claim 1, 2, 4, 6 or 8, wherein the partial discharge signal simulation device further comprises a wireless communication module, an input end of the wireless communication module It is electrically connected with the tenth output terminal of the microprocessor chip.
CN201821034768.0U 2018-07-02 2018-07-02 A partial discharge signal simulation device with temperature protection and overvoltage protection Active CN208421141U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821034768.0U CN208421141U (en) 2018-07-02 2018-07-02 A partial discharge signal simulation device with temperature protection and overvoltage protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821034768.0U CN208421141U (en) 2018-07-02 2018-07-02 A partial discharge signal simulation device with temperature protection and overvoltage protection

Publications (1)

Publication Number Publication Date
CN208421141U true CN208421141U (en) 2019-01-22

Family

ID=65107692

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821034768.0U Active CN208421141U (en) 2018-07-02 2018-07-02 A partial discharge signal simulation device with temperature protection and overvoltage protection

Country Status (1)

Country Link
CN (1) CN208421141U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110672987A (en) * 2018-07-02 2020-01-10 广东电网有限责任公司 A partial discharge signal simulation device with temperature protection and overvoltage protection
CN112291015A (en) * 2020-08-19 2021-01-29 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) STM32 processor-based microwave phase-stable transmission system and method
CN112578233A (en) * 2019-09-30 2021-03-30 中国石油化工股份有限公司 Protection device of partial discharge detector

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110672987A (en) * 2018-07-02 2020-01-10 广东电网有限责任公司 A partial discharge signal simulation device with temperature protection and overvoltage protection
CN110672987B (en) * 2018-07-02 2024-11-26 广东电网有限责任公司 A partial discharge signal simulation device with temperature protection and overvoltage protection
CN112578233A (en) * 2019-09-30 2021-03-30 中国石油化工股份有限公司 Protection device of partial discharge detector
CN112291015A (en) * 2020-08-19 2021-01-29 扬州船用电子仪器研究所(中国船舶重工集团公司第七二三研究所) STM32 processor-based microwave phase-stable transmission system and method

Similar Documents

Publication Publication Date Title
CN201489075U (en) GPS active antenna on-off detection device
CN208421141U (en) A partial discharge signal simulation device with temperature protection and overvoltage protection
CN106875619B (en) Combined type electric fire monitoring detector
CN103235250A (en) Photovoltaic array I-V characteristic testing device and testing method thereof
CN207281217U (en) A kind of amplifier circuit of compatibility electric current and temperature detection
CN208636417U (en) A kind of Partial discharge signal simulator with temperature measurement and overvoltage protection
CN206472856U (en) A kind of ultrasonic electronic cigarette working control circuit
CN207946465U (en) An electronic signal detection device
CN110673073B (en) Partial discharge signal simulation device with temperature measurement circuit
CN208607346U (en) A UHF partial discharge signal simulation device with overvoltage measurement function
CN110673072B (en) A partial discharge signal simulation device with temperature measurement and overvoltage protection
CN208384068U (en) A kind of Partial discharge signal simulator with temperature measurement function
CN208384096U (en) A kind of Partial discharge signal simulator with temperature measuring circuit
CN208705465U (en) A UHF partial discharge signal simulation device with overvoltage diagnosis function
CN205829654U (en) Power equipment communication test instrument
CN103499749B (en) A kind of electrostatic testing apparatus
CN203519735U (en) Electrostatic detection apparatus
CN104181370A (en) Load current detection circuit and detection device
CN206876769U (en) A kind of insulator detection device
CN208636416U (en) A kind of CVT secondary voltage analytical equipment based on electronic type transmitter
CN207976257U (en) A kind of motor compressor air-tightness non-destructive testing device
CN108507617A (en) Temperature-humidity detecting device and its detection method
CN108572275A (en) A surge current detection system and detection method
CN211426729U (en) Fire detection alarm electric quantity detection circuit and fire detection alarm
CN204730954U (en) Telecommunication circuit

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant