CN207516531U - A kind of electroscope calibration equipment - Google Patents
A kind of electroscope calibration equipment Download PDFInfo
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- CN207516531U CN207516531U CN201721423194.1U CN201721423194U CN207516531U CN 207516531 U CN207516531 U CN 207516531U CN 201721423194 U CN201721423194 U CN 201721423194U CN 207516531 U CN207516531 U CN 207516531U
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Abstract
The utility model provides a kind of electroscope calibration equipment, includes ac high voltage generator and electroscope verification rack；Electroscope verification rack includes insulating support, multiple box bodys and metallic rod；Each box body is fixed on insulating support side by side；Box body sheet is equipped with sensing unit communication device as insulator in each box body；One end of each box body is equipped with trepanning；Insulation puigging is additionally provided in the inner wall of box body；Metallic rod traverses each box body arranged side by side；Ac high voltage generator includes wireless receiving module, interactive module, power module, control module, intermediate frequency output module, high frequency transformer, voltage-multiplying circuit and inverter module；Control module is connected with intermediate frequency output module, and output and high frequency transformer, voltage-multiplying circuit and the inverter module of intermediate frequency output module are sequentially connected in series；Wireless receiving module output is connected with the input of control module；Control module is electrically connected with interactive module；The utility model high degree of automation, improves efficiency and accuracy.
Description
Technical field
The utility model is related to high-tension electricity rays safety detection apparatus fields, and in particular to a kind of electroscope calibration equipment.
Background technology
High voltage electroscope be for detect on high voltage electric equipment whether there is voltage a kind of portable electroscopic device, when
The alarm of high voltage electroscope can be triggered during in the presence of voltage higher than threshold value, in order to ensure the task performance of high voltage electroscope, is needed
Periodically carry out starting the effect of voltage.Starting in the verification of voltage currently for electroscope needs using control box, testing transformer
Gradually boosted, effect voltage in the range of the 15%-40% for reaching high voltage electroscope rated voltage high voltage electroscope whether
It alarms, needs repeatedly to adjust voltage in boost process, and testing crew is needed to wear insulating glove by after the extraction of electroscope insulating bar, use
The contact electrode of electroscope is verified with testing transformer reliable contacts, can only once carry out single electroscope experiment.It is this
Verification mode has the drawback that：Test period is longer, can not realize that batch verifies, working efficiency is relatively low；The number of testing equipment
Measure more, patching operations are comparatively laborious, additionally need the startup voltage model that testing crew manually reads, records and calculates checker
It encloses, measurement accuracy, the degree of automation are relatively low；The safety coefficient of experimental rig is relatively low, high voltage electroscope insulated telescopic rods or insulation
Gloves are off quality, the testing crew person may be damaged during electrical verification, and existing must security risk.Cause
This, it is necessary to it is furtherd investigate.
Utility model content
For the deficiency in the presence of the prior art, the utility model provides a kind of electroscope calibration equipment,
Purpose is to improve working efficiency, reduces financial cost and ensure personal safety.
To achieve the above object, the utility model employs following technical solution：
A kind of electroscope calibration equipment, includes ac high voltage generator and electroscope verification rack；
The electroscope verification rack includes insulating support, multiple box bodys and metallic rod；Each box body is fixed on insulation side by side
It is used to place high voltage electroscope to be verified on stent, in box body；It is single to be equipped with sensing as insulator in each box body for box body sheet
Element, communication device, to sense the alarm signal of high voltage electroscope and pass to ac high voltage generator；One end of each box body is all provided with
There is trepanning；Insulation puigging is additionally provided in the inner wall of box body；The metallic rod traverses each box body arranged side by side, to be put into box body
High voltage electroscope contact electrode connect therewith；
It is defeated that the ac high voltage generator includes wireless receiving module, interactive module, power module, control module, intermediate frequency
Go out module, high frequency transformer, voltage-multiplying circuit and inverter module；The control module is connected with intermediate frequency output module, and intermediate frequency is defeated
The input for going out module connects with external power supply, output and high frequency transformer, voltage-multiplying circuit and the inversion mould of intermediate frequency output module
Block is sequentially connected in series；The wireless receiving module is for receiving the signal that each sensing unit communication device is sent out, and output is with controlling
The input of module is connected；Control module is electrically connected with interactive module；The power module provides control module, wireless receiving mould
Electricity consumption needed for block, interactive module.
When the utility model is used, each box body is correspondingly placed into one by high voltage electroscope to be verified, and tests high pressure
The contact electrode contacting metal bar of electric appliance, one end of metallic rod and the high-voltage output end of ac high voltage generator are electrical connected；It opens
Dynamic ac high-voltage ac generator, will when the voltage of ac high voltage generator reaches the startup voltage of a certain high voltage electroscope
Sound-light alarm is generated, which triggers the sensing unit communication device transmitting signal in the box body.The signal is high by exchange
The wireless receiving module installed on pressure generator captures, and delivers a signal to the control module of ac high voltage generator, is triggered
The current high pressure generation value of alarm sends interactive module and shows after processing.
Compared with the prior art, the utility model has the advantages that：
(1), high degree of automation, batch verifies while realizing multichannel electroscope, improves efficiency and accuracy；
(2), electroscope verification rack is tested instead of man-hour manually hand-held electroscope, more securely and reliably；
(3) generating means, is exchanged using the electronic type of inversion, equipment volume and capacity reduce, carry more convenient；
(4), the interactive module on ac high voltage generator directly displays voltage and trigger voltage information, more intuitively；
(5) sensing unit communication device, is triggered with the alarm of electroscope, the record point of setting makes verification more accurate and effective；
(6), calibration equipment is simple in structure, easy to produce and operation, conducive to popularization.
Description of the drawings
Fig. 1 is the circuit theory logic diagram of embodiment.
Fig. 2 is the structure composition schematic diagram of embodiment.
Fig. 3 is the circuit diagram of power module in embodiment.
Fig. 4 is the intermediate frequency output module circuit diagram of embodiment.
Fig. 5 be embodiment in voltage-multiplying circuit, division module circuit diagram.
Fig. 6 is the circuit diagram of control module and AD conversion module in embodiment.
Fig. 7 is wireless receiving module and button module circuit in embodiment.
Fig. 8 is the circuit diagram of sensing unit communication device in embodiment.
Specific embodiment
The technical solution in the utility model is further illustrated with reference to the accompanying drawings and embodiments.
A kind of electroscope calibration equipment as shown in Figure 1 and Figure 2, is verified comprising ac high voltage generator 1 and electroscope
Stent；The electroscope verification rack includes insulating support 6, multiple box bodys 2 and metallic rod 3；Each box body 2 is fixed on insulation side by side
It is used to place high voltage electroscope to be verified on stent 6, in box body 2；Box body 2 is equipped with biography as insulator in each box body 2
Unit communication device is felt, to sense the alarm signal of high voltage electroscope and pass to ac high voltage generator；One end of each box body 2
It is equipped with trepanning 4；Acoustical cotton is laid with as insulation puigging in the inner wall of box body 2, to avoid high voltage electroscope in alarm mistiming
Trigger the sensing unit communication device in adjacent pack 2；The metallic rod 3 traverses each box body 2 arranged side by side, to be put into box body
2 high voltage electroscope contact electrode connects therewith；Effective insulation height of insulating support 6 or not less than 840mm, on the one hand ensures
Safety uses suitable for 10kv grades high voltage testing, and another aspect equivalence replacement falls the insulated part of high voltage electroscope, convenient for treating
The disengaging of check part is placed and is examined.
It is defeated that the ac high voltage generator 1 includes wireless receiving module, interactive module, power module, control module, intermediate frequency
Go out module, high frequency transformer, voltage-multiplying circuit and inverter module；The control module is connected with intermediate frequency output module, and intermediate frequency is defeated
The input for going out module connects with external power supply, output and high frequency transformer, voltage-multiplying circuit and the inversion mould of intermediate frequency output module
Block is sequentially connected in series；The wireless receiving module is for receiving the signal that each sensing unit communication device is sent out, and output is with controlling
The input of module is connected；Control module is electrically connected with interactive module；The power module provides control module, wireless receiving mould
Electricity consumption needed for block, interactive module.For ease of connecting and ensureing safety, setting high-voltage output end is in the side of ac high voltage generator 1
Wall, 3 external sheath of metallic rod insulating layer, sets the display screen 7 of interactive unit in the top of ac high voltage generator 1 or high pressure
The opposite face of side wall, the wireless receiving module are set to ac high voltage generator 1 by the adjustable strut of height where output terminal
Top, in order in height close to sensing unit communication device.
The structure of power module as shown in figure 3, alternating current AC220 L lines and N lines respectively with the input terminal of power switch S1 two
Side is connected, and the both sides of the output terminal of power switch S1 are connected respectively with the primary side both ends of transformer T1, transformer T1's
Input of the secondary side both ends respectively with rectifier bridge B1 is connect, the anode output of rectifier bridge B1 and one end, the capacitance of electrolytic capacitor C1
One end of C2, the input terminal of three-terminal voltage-stabilizing pipe Z1 are connected, the cathode output of rectifier bridge B1 and the other end, the electricity of electrolytic capacitor C1
The other end of appearance C2, the publicly GND of three-terminal voltage-stabilizing pipe Z1 are connected, and the output end vo ut of three-terminal voltage-stabilizing pipe Z1 is the 5V of system
Power end, the publicly GND of three-terminal voltage-stabilizing pipe Z1 is the 5V cathode of system.
The structure of intermediate frequency output module is as shown in figure 4, L lines and N the lines input with power switch S1 respectively of alternating current AC220
End both sides are connected, and the input that rectification module B2 is distinguished in the both sides of the output terminal of power switch S1 is connected, and rectification module B2's is defeated
The drain electrode for going out the anode, metal-oxide-semiconductor Q1 of anode and electrolytic capacitor C9 is connected, and the output negative pole of rectification module B2 is with electrolytic capacitor C9's
Negative terminal, metal-oxide-semiconductor Q2 source electrode be connected, the source electrode of metal-oxide-semiconductor Q1 is connected with the drain electrode of metal-oxide-semiconductor Q2.The primary side both ends of transformer T2
The 18th foot with power module cathode output end, microcontroller U1 is connected respectively, one end tap and the electricity of the secondary side of transformer T2
One end of resistance R4, the cathode of zener diode D6 are connected, and the anode of zener diode D6 is connected with the anode of diode D7, two poles
The cathode of pipe D7 is connected with the base stage of the anode of diode D8, one end of resistance R1, triode Q3, the cathode of diode D8 and three
The collector of pole pipe Q3, one end of resistance R3 are connected, the other end of resistance R3 and the cathode of zener diode D9, metal-oxide-semiconductor Q1
Grid is connected, the another tap short circuit in centre of the secondary side of transformer T2 and one end with capacitance C11, zener diode D10
Cathode, metal-oxide-semiconductor Q1 source electrode be connected, the anode of zener diode D10 is connected with the anode of zener diode D9, resistance R1's
The other end is connected with the anode of the emitter of triode Q3, the other end of capacitance C11, diode D11, the cathode of diode D11
It is connected with the other end tap of the other end of resistance R4, the secondary side of transformer T2.The primary side both ends of transformer T3 respectively with
Power module cathode output end, microcontroller U1 the 19th foot be connected, one end tap of the secondary side of transformer T3 is with resistance R5's
One end, zener diode D12 cathode be connected, the anode of zener diode D12 is connected with the anode of diode D13, diode
The cathode of D13 is connected with the base stage of the anode of diode D14, one end of resistance R6, triode Q4, the cathode of diode D14 with,
The collector of triode Q4, one end of resistance R7 are connected, the other end of resistance R7 and the cathode of zener diode D15, metal-oxide-semiconductor Q2
Grid be connected, the another tap short circuit in centre of the secondary side of transformer T3 and one end with capacitance C12, zener diode
The cathode of D16, the source electrode of metal-oxide-semiconductor Q2 are connected, and the anode of zener diode D16 is connected with the anode of zener diode D15, resistance
The other end of R6 is connected with the anode of the emitter of triode Q4, the other end of capacitance C12, diode D17, diode D17's
Cathode is connected with the other end tap of the other end of resistance R5, the secondary side of transformer T3.The drain electrode of metal-oxide-semiconductor Q1 and metal-oxide-semiconductor Q2
Source electrode export respectively as the intermediate frequency of controller and be connected with the input of AC boosting.
The main function of the module is：Alternating current AC220V is subjected to rectification, then this direct current signal with pulsation point
It is not connected on the drain electrode of metal-oxide-semiconductor Q1 and the source electrode of metal-oxide-semiconductor Q2, controls two groups of triodes that it is made to carry out high-frequency switch with microcontroller
Working condition can thus make two metal-oxide-semiconductors also be operated on off state, thereby realize direct current signal be converted to intermediate frequency
Voltage exported, then primary boosting is carried out by high frequency transformer, finally voltage output is risen again by voltage-multiplying circuit again
Up to required voltage range.Microcontroller changes the duty ratio of output intermediate-freuqncy signal by changing the switching frequency of triode, from
And realize voltage regulation function；By D9, D10, D6, D7, D8, D11, Q3, R1, R3, R4, C11 with centre tapped transformer T2,
And D12, D13, D14, D15, D16, D17, Q4, R5, R6, R7, C12 and the connection structure with centre tapped transformer T3 it is real
Existing voltage transformation and protection；When microcontroller does the output of periodical high-low voltage, D18, D19, D20, D21, C13, C14,
C15, C16 not only prevent the overshoot effect of inductance in transformer, maintain the stability of direct current, while also protect microcontroller
Output port.
Voltage-multiplying circuit is with division module circuit as shown in figure 5, wherein voltage-multiplying circuit is by capacitance C31~C41, diode D31
~D41 is formed；Division module is made of resistance R31, R32；The output both ends of intermediate frequency output module respectively with high frequency transformer T1
The both sides of first winding be connected, high frequency transformer T1's is secondary around the anode of one end of pressure and diode D31, high-voltage capacitance
The cathode of C32 is connected, and the secondary other end around pressure of high frequency transformer T1 is connected with the cathode of high-voltage capacitance C31, high-voltage capacitance
The anode of C31 is connected with the cathode of the cathode of diode D31, the anode of diode D32, high-voltage capacitance C33, high-voltage capacitance C32
Anode be connected with the cathode of the cathode of diode D32, the anode of diode D33, high-voltage capacitance C34, high-voltage capacitance C33 is just
Pole is connected with the cathode of the cathode of diode D33, the anode of diode D34, high-voltage capacitance C35, the anode of high-voltage capacitance C34 with
The cathode of diode D34, the anode of diode D35, high-voltage capacitance C36 cathode be connected, the anode of high-voltage capacitance C35 and two poles
The cathode of pipe D35, the anode of diode D36, high-voltage capacitance C37 cathode be connected, the anode and diode of high-voltage capacitance C36
The cathode of D36, the anode of diode D37, high-voltage capacitance C38 cathode be connected, the anode of high-voltage capacitance C37 and diode D37
Cathode, the anode of diode D38, the cathode of high-voltage capacitance C39 be connected, the anode of high-voltage capacitance C38 is negative with diode D38's
Pole, the anode of diode D39, high-voltage capacitance C40 cathode be connected, the anode of high-voltage capacitance C39 and the cathode of diode D39,
The anode of diode D40, the cathode of high-voltage capacitance C41 are connected, the anode of high-voltage capacitance C40 and the cathode of diode D40, two poles
The anode of pipe D41 is connected, and the anode of high-voltage capacitance C41 is connected with the cathode of diode D41, high-voltage capacitance C41 anodes and high pressure
The cathode of capacitance C1 is as DC high-voltage output end.Output terminal is connected respectively with the input terminal of high-voltage inverter, high-voltage inverter
Output one end be connected with resistance R31 one end, the output other end of high-voltage inverter and resistance R32 one end are connected to high pressure, electricity
The other end of resistance R31 connects with the other end of resistance R32, and the voltage on resistance R32 is as AD in sampled voltage and master controller
Modular converter is connected.
The main function of the partial circuit is：The intermediate frequency output voltage for being exported master controller by high frequency transformer T1 is first
Then voltage signal is being amplified 32 times by amplification by 5 grades of voltage-multiplying circuits, the voltage exported is DC voltage, then passes through height
High direct voltage is converted to ac high-voltage by pressure inverter, and the bleeder circuit by being made of resistance R32, R31 carries out partial pressure and takes
Sample carries out the measurement of ac high-voltage；Electric current is accordingly greatly reduced after increasing voltage by voltage-multiplying circuit, is provided in high-potting
Safety assurance.
The circuit theory of AD conversion module and control module with as shown in fig. 6, AD conversion module include chip AR2, select
AD736 high-precision AD conversion chips；Control module includes microcontroller U1, and microcontroller U1 selects chip STC12C5A60S2；Partial pressure
1st foot of input interface with connecing 5V power source references, divides the 1st foot of input interface and the 2nd foot of chip AR2, diode D2
Cathode, diode D4 anode be connected, chip AR2 select AD736 high-precision AD conversion chips, to ensure data precision；Two poles
The anode of pipe D2 connects power module cathode output end, the cathode of diode D4 with connecing 5V power source references, the 1st foot of chip AR2 with
The 8th foot of chip AR2, is connected to 5V power source references at one end of capacitance C3, the 3rd foot of chip AR2 and the cathode of electrolytic capacitor C6
Connect, the 4th foot of chip AR2 is connected with the cathode of electrolytic capacitor C5, one end of capacitance C4, another termination 5V power supplys of capacitance C4
Reference ground, the 5th foot of chip AR2 are connected with the anode of electrolytic capacitor C5, the 6th foot of chip AR2 and the anode of electrolytic capacitor C6,
The 26th foot of microcontroller U1 is connected, and the 7th foot of chip AR2 is connected with the other end, the power module cathode output end of capacitance C3.
The main function of the partial circuit is：System output voltage is converted to by the smaller exchange of amplitude by bleeder circuit
Signal, then the ac small signal is inputed to real effective AD conversion chip AR2.The chip and its simple peripheral circuit can
Ac small signal is converted to the direct current signal of its equivalent virtual value, then inputs to microcontroller U1.Again by microcontroller inside
AD conversion module converts analog signals into digital signal, is shown by display.
As shown in fig. 7, wireless receiving module include wireless receiver JN1, JN2, select PT2272 receivers, the 1st of JN2 the
With connecing 5V power source references, the 2nd foot of wireless receiver JN2 connects power module cathode output end to foot, wireless receiver JN2 the 3rd,
4th, 5,6 feet respectively with the 37th of microcontroller U1,36,35,34 feet are corresponding connects, the 7th foot of wireless receiver JN2 does not connect vacantly.
With connecing 5V power source references, the 2nd foot of wireless receiver JN1 connects power module cathode output end to the 1st foot of wireless receiver JN1,
Wireless receiver JN1 the 3rd, 4,5,6 feet respectively with the 33rd of microcontroller U1,32,31,30 feet are corresponding connects, wireless receiver
The 7th foot of JN1 does not connect vacantly.One end of button S2 is connected with the 17th foot of microcontroller U1, one end and the microcontroller U1 of button S3
The 28th foot be connected, one end of button S4 is connected with the 39th foot of microcontroller U1, and the other end short circuit of button S2, S3, S4 simultaneously connect
5V power source references；The interactive module also includes the LCD display being connect with microcontroller U1 in addition to button S2, S3, S4, this
Part is the prior art, and therefore not to repeat here.
The main function of the partial circuit is：Microcontroller is by scanning the change of the level of the input port of button S2/S3/S4
Change determines the order instruction that controller is sent out, and mainly includes the setting to system voltage and to verifying the startup of experiment and stopping
Only.In addition, microcontroller needs the I/O mouths corresponding to two wireless receiving receivers of continuous scanning, when the high pressure in certain box body is tested
When electric appliance is alarmed, the transmitter in high voltage electroscope mounting box body will be triggered and emit signal, corresponding with the road transmitter
Wireless receiver receive signal after can generate high level, can thus be identified by microcontroller, reach wireless and differentiate that electroscope is
The function of no alarm.
The sensing unit communication device as shown in Fig. 8 circuits, sensing unit SG1 be acousto-optic sensor, sensing unit SG1
The 1st foot connect the 5V anodes of power module output, the 2nd foot of sensing unit SG1 connects the 5V cathode of power module output, and sensing is single
The 3rd foot of first SG1 connects with emitter, the 5V cathode of triode Q6, one end phase of the 4th foot and resistance R22 of sensing unit SG1
It connects, one end of inductance L1 is connected with 5V anodes, the other end and one end of capacitance C21, one end of resistance R21, the crystal oscillator of inductance L1
One end of Y2, one end of inductance L2 are connected, and the other end of inductance L2 is connected with the collector of one end of capacitance C22, triode Q6,
The other end of capacitance C22 is connected with transmitting antenna, the other end of capacitance C21 and the collector of triode Q5, the hair of triode Q6
Emitter-base bandgap grading is connected, and the other end of resistance R21 is connected with the base stage of the other end of crystal oscillator Y2, triode Q6.The circuit module it is main
When effect is that the high voltage electroscope in box body starts alarm, sound and light signal is sent out.Sound and light signal sensor receives sound and light signal
After will generate high level, trigger right side emitter to corresponding receiver emit signal.After receiver receives signal
Current voltage value will be recorded and the startup voltage percentage of the road electroscope is calculated and displayed.
Finally illustrate, above example is only to illustrate the technical solution of the utility model, those skilled in the art
Member should be appreciated that the right for being encompassed by the utility model is modified or replaced equivalently to technical solution works as
In.
Claims (6)
1. a kind of electroscope calibration equipment, it is characterised in that：Include ac high voltage generator and electroscope verification rack；
The electroscope verification rack includes insulating support, multiple box bodys and metallic rod；Each box body is fixed on insulating support side by side
On, it is used to place high voltage electroscope to be verified in box body；As insulator, in each box body be equipped with sensing unit leads to box body sheet
T unit, to sense the alarm signal of high voltage electroscope and pass to ac high voltage generator；One end of each box body is equipped with out
Hole；Insulation puigging is additionally provided in the inner wall of box body；The metallic rod traverses each box body arranged side by side, to be put into the height of box body
Pressure electroscope contact electrode connects therewith；
The ac high voltage generator includes wireless receiving module, interactive module, power module, control module, intermediate frequency output mould
Block, high frequency transformer, voltage-multiplying circuit and inverter module；The control module is connected with intermediate frequency output module, intermediate frequency output mould
The input of block connects with external power supply, the output of intermediate frequency output module and high frequency transformer, voltage-multiplying circuit and inverter module according to
Secondary concatenation；The wireless receiving module is used to receive the signal that each sensing unit communication device is sent out, output and control module
Input be connected；Control module is electrically connected with interactive module；The power module provides control module, wireless receiving module, friendship
Electricity consumption needed for mutual module.
2. a kind of electroscope calibration equipment as described in claim 1, it is characterised in that：The sensing unit communication device
Comprising sensor and radiofrequency launcher, the output of sensor is connected with radiofrequency launcher；The sensor include sound transducer,
One of which in optical sensor or acousto-optic sensor.
3. a kind of electroscope calibration equipment as described in claim 1, it is characterised in that：The ac high voltage generator is also
Comprising division module and AD conversion module, the input of division module is connected with the output of inverter module, the output of division module with
The input of AD conversion module is connected, and the output of AD conversion module is connected with the input of control module.
4. a kind of electroscope calibration equipment as described in claim 1, it is characterised in that：The wireless receiving module includes
Two-way wireless receiver PT2272, is connected respectively with control module.
5. a kind of electroscope calibration equipment as described in claim 1, it is characterised in that：The sensing unit communication device
Comprising acousto-optic sensor, acousto-optic sensor output is connected with wireless-modulated module；The overall structure of the wireless-modulated module is
Common emitter amplifying circuit is high frequency modulated between the collector of the common emitter amplifying circuit and the anode feeder ear of power module
Circuit；The high frequency modulated circuit includes triode Q6, crystal oscillator Y2, resistance R21, capacitance C21, inductance L2, inductance L1, capacitance
C22 and antenna ANT；Wherein, one end of inductance L1 is connected with the anode feeder ear of power module, the other end and capacitance of inductance L1
One end of C21, one end of resistance R21, one end of crystal oscillator Y2, inductance L2 one end be connected, the other end of inductance L2 and capacitance C22
One end, triode Q6 collector be connected, the other end of capacitance C22 is connected with antenna ANT, the other end of capacitance C21 and three
The emitter of pole pipe Q6 is connected, and the other end of resistance R21 is connected with the base stage of the other end of crystal oscillator Y2, triode Q6；Triode
The emitter of Q6 is connected with the collector of common emitter amplifying circuit.
6. a kind of electroscope calibration equipment as described in claim 1, it is characterised in that：The intermediate frequency output module includes
Rectification module B2, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, zener diode D6, D9, D10, D12, D15, D16, D18, D19, D20, D21, band
Centre tapped transformer T1, with centre tapped transformer T2, diode D7, D8, D11, D13, D14, D17, resistance R1,
R3, R4, R5, R6, R7, capacitance C9, C11, C12, C13, C14, C15, C16, triode Q3, Q4；The input pair of rectification module B2
It should be electrically connected with external communication, the output cathode of rectification module B2 is connected with the drain electrode of the anode, metal-oxide-semiconductor Q1 of electrolytic capacitor C9,
The output negative pole of rectification module B2 is connected with the negative terminal of electrolytic capacitor C9, the source electrode of metal-oxide-semiconductor Q2, the source electrode and metal-oxide-semiconductor of metal-oxide-semiconductor Q1
The drain electrode of Q2 is connected, the primary side both ends of transformer T2 the 18th foot phase with power module cathode output end, microcontroller U1 respectively
Even, one end tap of the secondary side of transformer T2 is connected with the cathode of one end of resistance R4, zener diode D6, zener diode
The anode of D6 is connected with the anode of diode D7, the cathode of diode D7 and the anode of diode D8, one end of resistance R1, three poles
The base stage of pipe Q3 is connected, and the cathode of diode D8 is connected with one end of the collector of triode Q3, resistance R3, and resistance R3's is another
End is connected with the cathode of zener diode D9, the grid of metal-oxide-semiconductor Q1, and the another tap short circuit in centre of the secondary side of transformer T2 is simultaneously
And be connected with the source electrode of one end of capacitance C11, the cathode of zener diode D10, metal-oxide-semiconductor Q1, the anode of zener diode D10 with
The anode of zener diode D9 is connected, the other end of resistance R1 and the emitter of triode Q3, the other end of capacitance C11, two poles
The anode of pipe D11 is connected, the other end tap of the cathode of diode D11 and the other end of resistance R4, the secondary side of transformer T2
It is connected, the 19th foot of the primary side both ends of transformer T3 respectively with power module cathode output end, microcontroller U1 is connected, transformer
One end tap of the secondary side of T3 is connected with the cathode of one end of resistance R5, zener diode D12, and zener diode D12 is just
Pole is connected with the anode of diode D13, cathode and the anode of diode D14, one end of resistance R6, the triode of diode D13
The base stage of Q4 is connected, and the cathode of diode D14 is connected with, one end of the collector of triode Q4, resistance R7, and resistance R7's is another
End is connected with the cathode of zener diode D15, the grid of metal-oxide-semiconductor Q2, the another tap short circuit in centre of the secondary side of transformer T3
And it is connected with the source electrode of one end of capacitance C12, the cathode of zener diode D16, metal-oxide-semiconductor Q2, the anode of zener diode D16
It is connected with the anode of zener diode D15, the other end of resistance R6 and the emitter of triode Q4, the other end of capacitance C12, two
The anode of pole pipe D17 is connected, and the cathode of diode D17 and the other end of the other end of resistance R5, the secondary side of transformer T3 are taken out
Head is connected, and the drain electrode of metal-oxide-semiconductor Q1 and the source electrode of metal-oxide-semiconductor Q2 are respectively as the intermediate frequency output of controller and the input phase of AC boosting
Connection.
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| CN201721423194.1U CN207516531U (en) | 2017-10-31 | 2017-10-31 | A kind of electroscope calibration equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607900A (en) * | 2017-10-31 | 2018-01-19 | 国网重庆市电力公司璧山供电分公司 | A kind of electroscope calibration equipment |
| CN109270329A (en) * | 2018-11-13 | 2019-01-25 | 天津送变电工程有限公司 | A kind of contact electrical verification system and its working method based on unmanned plane |
| CN110673078A (en) * | 2019-10-21 | 2020-01-10 | 国网辽宁省电力有限公司抚顺供电公司 | High-voltage electricity-testing signal generator calibrator |
-
2017
- 2017-10-31 CN CN201721423194.1U patent/CN207516531U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607900A (en) * | 2017-10-31 | 2018-01-19 | 国网重庆市电力公司璧山供电分公司 | A kind of electroscope calibration equipment |
| CN107607900B (en) * | 2017-10-31 | 2024-02-13 | 国网重庆市电力公司璧山供电分公司 | Electroscope verifying attachment |
| CN109270329A (en) * | 2018-11-13 | 2019-01-25 | 天津送变电工程有限公司 | A kind of contact electrical verification system and its working method based on unmanned plane |
| CN110673078A (en) * | 2019-10-21 | 2020-01-10 | 国网辽宁省电力有限公司抚顺供电公司 | High-voltage electricity-testing signal generator calibrator |
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