CN207473037U - The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system - Google Patents
The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system Download PDFInfo
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- CN207473037U CN207473037U CN201721332810.2U CN201721332810U CN207473037U CN 207473037 U CN207473037 U CN 207473037U CN 201721332810 U CN201721332810 U CN 201721332810U CN 207473037 U CN207473037 U CN 207473037U
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Abstract
This application provides a kind of steep-fronts to impact lower shelf depreciation high-frequency signal extraction element and measuring system, wherein, cavity one end is provided with cavity bottom surface, and cavity is provided with intercommunicating pore on bottom surface；Cavity bottom surface is being provided with high-frequency signal receiving part positioned at the side of containment portion；The side that high-frequency signal receiving part is located at cavity bottom surface is provided with connecting rod, and connecting rod one end within the cavity is provided with connecting pole, and the periphery of connecting rod is provided with insulating sleeve；The cavity other end is provided with cavity cover board, and connecting hole is provided on cavity cover board, and cavity cover board is provided with electrical connector in connection hole, and electrical connector is connect with connecting pole by banana connector.Cavity is placed in the reserved window of GIS pipelines, when carrying out GIS partial discharge detection under steep-front impact, high-frequency signal receiving part receives initial measurement signal, and pass through connecting rod, connecting pole and banana connector and be sent to electrical connector, it is achieved thereby that impacting the extraction of lower shelf depreciation high-frequency signal to steep-front.
Description
Technical field
This application involves power electronics fields more particularly to a kind of lower shelf depreciation high-frequency signal of steep-front impact to carry
Take device and measuring system.
Background technology
All the time, those skilled in the art are in the field of business builds consensus：In extra-high voltage field, for detection device defect,
Impulse withstand voltage experiment would generally be carried out in device context commissioning test, and in super-pressure field, usually progress industrial frequency withstand voltage
Experiment.However, with the Large scale construction of supergrid in recent years and putting into operation, equipment occurs before putting into operation and in operation
The probability of accident is continuously increased, this explanation, which only carries out extra-high tension unit industrial frequency withstand voltage experiment, cannot meet the safety of equipment
Demand.Also, for extra-high tension unit, such as gas-insulated switchgear (Gas Insulated Switchgear, abbreviation
GIS device), although the power-frequency voltage that industrial frequency withstand voltage experiment uses can excite and exposure device defect, due to power frequency electric
Pressing element has duration, also equipment deficiency can be made further to expand while excitation and exposure device defect, equipment is caused more
Big damage.
For extra-high tension units such as GIS devices, the characteristics of surge voltage is due to its " transient ", is exciting and exposure defect
While, defect, also, the GIS device for carrying fixed insulation defect will not be expanded, the wave head time of surge voltage determines
The breakdown characteristics of GIS, the wave head time is shorter, it is found that the effect of defect is better instead.Therefore, using steep-front surge voltage pair
The lower measurement of partial discharge of GIS device progress steep-front impact can effectively find the local defect in GIS device.
In the prior art, excitation mostly is used as using alternating voltage or DC voltage for the measurement of partial discharge of GIS device
Voltage mostly using excusing from death wave method, hyperfrequency method and pulse current method in measurement means, and impacts lower part for steep-front and puts
Electro-detection, since its wave head time is short, without duration, above-mentioned measuring method has significant limitation, therefore, existing skill
Measurement means in art can not realize to GIS device steep-front impact under measurement of partial discharge.
Utility model content
This application provides a kind of steep-fronts to impact lower shelf depreciation high-frequency signal extraction element and measuring system, to solve
Problems of the prior art.
This application provides a kind of steep-fronts to impact lower shelf depreciation high-frequency signal extraction element, including：Cavity；Wherein：
Described cavity one end is provided with cavity bottom surface, and intercommunicating pore is provided on the cavity bottom surface；The cavity bottom surface exists
The side of the containment portion is provided with high-frequency signal receiving part, the high-frequency signal receiving part and the cavity bottom
The first insulating layer is provided between face.
The side that the high-frequency signal receiving part is located at the cavity bottom surface is provided with connecting rod, and the connecting rod is located at
In the intercommunicating pore, the one end of the connecting rod far from the high-frequency signal receiving part is located in the cavity, the connection
The diameter of bar is less than the connection bore dia；One end that the connecting rod is located in the cavity is provided with connecting pole, the company
The diameter for connecing column is more than the diameter of the connecting rod；The periphery of the connecting rod is provided with insulating sleeve, and the insulating sleeve exists
Diameter in the cavity is more than the diameter of the intercommunicating pore.
The cavity other end is provided with cavity cover board, and the second insulation is provided between the cavity cover board and the cavity
Layer, connecting hole is provided on the cavity cover board, the cavity cover board is provided with electrical connector, the electricity in the connection hole
Banana connector is provided between connector and the connecting pole, the electrical connector passes through the banana connector with the connecting pole
Connection.
Optionally, the cavity is located at the cavity cover board side and is provided with abutted flange, the docking of the abutted flange
Seal groove is provided on face.
Optionally, the high-frequency signal receiving part is disc structure made of metal.
Optionally, the connecting rod is threaded rod, and the connecting pole is provided with tapped blind hole, the connecting rod and the company
Column is connect to be threadedly coupled by the tapped blind hole.
Optionally, the cavity and the cavity cover board are made using stainless steel.
Optionally, airtight and watertight padding is filled in the seal groove.
The application also provides a kind of steep-front impact lower shelf depreciation high frequency testing system, including：Extraction element, letter
Number processing module, signal transmission module and display terminal；Wherein：
The signal processing module is connect with the electrical connector of the extraction element, and the signal processing module is used for
High frequency filter is carried out to the initial measurement signal of extraction element extraction, exports high-frequency signal measurement.
Described signal transmission module one end is connect with the signal processing module, and the other end is connect with the display terminal；
The transmission process module is used to high-frequency signal measurement being transmitted to the display terminal.
Optionally, the signal processing module includes high-frequency filter circuit, and the high-frequency filter circuit is initial for removing
Low-frequency noise in measuring signal exports high-frequency signal measurement.
Optionally, the signal transmission module includes analog-digital converter, and the analog-digital converter is used to believe high frequency measurement
Number it is converted into the digital signal that the display terminal can identify.
Optionally, the signal transmission module further includes electrical to optical converter, photoelectric converter and optical cable；The electro-optic conversion
Device is located at the analog-digital converter side, is connect with the analog-digital converter, and the photoelectric converter is located at the display terminal
Side is connect with the display terminal, and the electrical to optical converter is connect with the photoelectric converter by the optical cable.
By above technical scheme it is found that this application provides a kind of steep-fronts to impact lower shelf depreciation high-frequency signal extraction dress
It puts, including：Cavity；Cavity one end is provided with cavity bottom surface, and cavity is provided with intercommunicating pore on bottom surface；Cavity bottom surface is positioned at cavity
External side is provided with high-frequency signal receiving part, and the first insulation is provided between high-frequency signal receiving part and cavity bottom surface
Layer；The side that high-frequency signal receiving part is located at cavity bottom surface is provided with connecting rod, and connecting rod is located in intercommunicating pore, and connecting rod is remote
One end from high-frequency signal receiving part is within the cavity, and the diameter of connecting rod is less than connection bore dia；Connecting rod is located at cavity
Interior one end is provided with connecting pole, and the diameter of connecting pole is more than the diameter of connecting rod；The periphery of connecting rod is provided with insulating sleeve,
The diameter of insulating sleeve in the cavity is more than the diameter of connecting pole, and cavity bottom surface is made to be dielectrically separated from connecting rod and connecting pole；Chamber
The body other end is provided with cavity cover board, and connecting hole is provided on cavity cover board, and cavity cover board is provided with electrical connection in connection hole
Head, is provided with banana connector between electrical connector and connecting pole, electrical connector is connect with connecting pole by banana connector.It uses
When, cavity is placed in the reserved window of GIS pipelines, high-frequency signal receiving part is made to be located in GIS pipelines, before carrying out suddenly
During GIS partial discharge detection lower along impact, high-frequency signal receiving part receives GIS device under steep-front surge voltage and locally puts
The initial measurement signal of electricity, initial measurement signal are sent to electricity by connecting rod, connecting pole and the banana connector to insulate with cavity
Connector, it is achieved thereby that impacting the extraction of lower shelf depreciation high-frequency signal to steep-front.In addition, the application also provides one kind
The lower shelf depreciation high frequency testing system of steep-front impact, including the extraction element that the application provides, signal processing module, letter
Number transmission module and display terminal；Signal processing module and the electrical connector of measuring device connect, for being received from extraction element
Initial measurement signal, and High frequency filter is carried out to initial measurement signal, export high-frequency signal measurement；Signal transmission module one end with
Signal processing module connects, and the other end is connect with display terminal；Signal processing module is aobvious for high-frequency signal measurement to be transmitted to
Show terminal, the measuring system that the application provides extracts initial measurement signal, by signal processing module to first by measuring device
Beginning measuring signal is filtered, and removes low-frequency noise, obtains the high-frequency signal measurement of the lower shelf depreciation of steep-front impact, finally,
Display terminal is sent to by signal transmission module, makes the lower shelf depreciation high-frequency signal of GIS device steep-front impact whole in display
Quantify display on end, it is achieved thereby that impacting the measurement of lower shelf depreciation high-frequency signal to steep-front.
Description of the drawings
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural representation of the lower shelf depreciation high-frequency signal extraction element of steep-front impact shown in the embodiment of the present application
Figure；
Fig. 2 is a kind of structure of the lower shelf depreciation high frequency testing system of steep-front impact shown in the embodiment of the present application
Schematic diagram；
Fig. 3 is the knot of the lower shelf depreciation high frequency testing system of another steep-front impact shown in the embodiment of the present application
Structure schematic diagram；
Wherein：1- cavitys, 11- cavitys bottom surface, 12- intercommunicating pores, 2- high-frequency signal receiving parts, the first insulating layers of 31-,
32- insulating sleeves, 33- second insulating layers, 4- connecting rods, 5- connecting poles, 51- tapped blind holes, 6- cavity cover boards, 61- connecting holes,
7- electrical connectors, 8- banana connectors, 9- abutted flanges, 91- seal grooves, 911- airtight and watertight paddings, 10- extraction elements, at 20- signals
Manage module, 201- high-frequency filter circuits, 30- signal transmission modules, 301- analog-digital converters, 302- electricals to optical converter, 303- light
Electric transducer, 304- optical cables, 40- display terminal modules, 100-GIS pipelines, 110-GIS equipment, 120- reserved windows.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical solution in the embodiment of the present application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
Technical staff's all other embodiments obtained without making creative work should all belong to the application protection
Range.
Embodiment one
The embodiment of the present application provides a kind of steep-front impact lower shelf depreciation high-frequency signal extraction element, as shown in Figure 1, this
Apply for the lower shelf depreciation high-frequency signal extraction element of steep-front impact that embodiment provides, including：
Cavity 1；1 one end of cavity is provided with cavity bottom surface 11, and intercommunicating pore 12 is provided on cavity bottom surface 11；Cavity bottom surface 11
Be provided with high-frequency signal receiving part 2 in the side outside cavity 1, high-frequency signal receiving part 2 and cavity bottom surface 11 it
Between be provided with the first insulating layer 31；The side that high-frequency signal receiving part 2 is located at cavity bottom surface 11 is provided with connecting rod 4, connection
Bar 4 is located in intercommunicating pore 12, and the one end of connecting rod 4 far from high-frequency signal receiving part 2 is located in cavity 1, the diameter of connecting rod 4
Less than 12 diameter of intercommunicating pore；One end that connecting rod 4 is located in cavity 1 is provided with connecting pole 5, and the diameter of connecting pole 5 is more than connection
The diameter of bar 4；The periphery of connecting rod 4 is provided with insulating sleeve 32, and diameter of the insulating sleeve 32 in cavity 1 is more than connecting pole 5
Diameter, insulating sleeve 32 makes cavity bottom surface 11 be dielectrically separated from connecting rod 4 and connecting pole 5；1 other end of cavity is provided with cavity
Cover board 6 is provided with second insulating layer 33 between cavity cover board 6 and cavity 1, connecting hole 61, cavity lid are provided on cavity cover board 6
Plate 6 is provided with electrical connector 7 at connecting hole 61, and banana connector 8, electrical connector are provided between electrical connector 7 and connecting pole 5
7 are connect with connecting pole 5 by banana connector 8.
In the present embodiment, cavity 1 is mounted in the reserved window 120 of GIS pipelines 100, and the bore of reserved window 120 is bigger
In the outer diameter of cavity 1, so that cavity 1 is easily placed and takes out.Cavity 1 is mounted in reserved window 120 and after fixing, and allows chamber
There are gaps between body 1 and reserved window 120, are deformed caused by by environmental factor, but gap can not be excessive with coping with equipment, mistake
Big gap is unfavorable for the fixation of cavity 1.In the present embodiment, after cavity 1 is installed, high-frequency signal receiving part 2 is located at GIS pipelines
Close to the position of tube wall in 100, so as to not impacted to the overall structure of GIS pipelines 100.First insulating layer 31 and insulation sleeve
Cylinder 32 contacts with each other, and cavity 1 is made to form reliable insulation with high-frequency signal receiving part 2, connecting rod 4 and connecting pole 5, also,
Second insulating layer 33 realizes the insulation to connecting pole 5 and cavity cover board 6, therefore, the survey that high-frequency signal receiving part 2 receives
Amount signal can only transmit, and pass through on the electrical connector 7 that banana connector 8 is transferred to outside cavity along connecting rod 4 and connecting pole 5,
It is not transmitted on cavity 1 and signal is caused to be disperseed, so as to be conducive to improve the effect of signal extraction.When progress steep-front punching
When hitting lower GIS partial discharge detection, high-frequency signal receiving part 2 receives 110 part of GIS device under steep-front surge voltage and puts
The initial measurement signal of electricity, initial measurement signal are sent to by connecting rod 4, connecting pole 5 and the banana connector 8 to insulate with cavity
Electrical connector 7, it is achieved thereby that impacting the extraction of lower shelf depreciation high-frequency signal to steep-front.
In the present embodiment, the diameter of connecting rod 4 is less than the diameter of intercommunicating pore 12, and the internal diameter of insulating sleeve 32 is equal to connecting rod
4 diameter, the outer diameter of insulating sleeve 32 are equal to the diameter of intercommunicating pore 12, make 11 shape of connecting rod 4, insulating sleeve 32 and cavity bottom surface
It is fixed into reliable.It should be noted that it is insulation that the relationship between the diameter of connecting rod 4 and the diameter of intercommunicating pore 12, which will meet,
Sleeve 32 has enough thickness, and the thickness of insulating sleeve 32 is enable to ensure that cavity bottom surface 11 and connecting rod 4 are realized reliably
Insulation.The occurrence of the thickness of insulating sleeve 32 and surge voltage intensity, 32 material and facility use environment of insulating sleeve etc. because
Pass, also, the various factors that those skilled in the art can insulate according to insulating sleeve 32 is influenced are known as, reasonably selects insulation sleeve
The thickness of cylinder 32, therefore, the selection for insulating sleeve 32 material, size does not do specific requirement in the present embodiment.
In the present embodiment, the diameter of connecting pole 5 is more than the diameter of connecting rod 4, can using the connecting pole 5 being relatively large in diameter
Reduce loss of the initial measurement signal in transmission, improve signal extraction effect.Diameter with connecting pole 5 insulate to adaptively
Diameter of the sleeve 32 in cavity 1 is more than the diameter of intercommunicating pore 12, and more than the diameter of connecting pole 5, makes connecting pole 5 and cavity
Bottom surface 11 forms reliable insulation.Insulating sleeve 32 is located at the part other than 5 diameter of connecting pole, can also be to 5 direction of connecting pole
Extension, while insulation is improved, moreover it is possible to play the effect for being fixedly connected with column 5.
In a kind of selectable embodiment, the side that cavity 1 is located at cavity cover board 6 is provided with abutted flange 9, docking
The side that flange 9 is located at cavity 1 is provided with seal groove 91.Abutted flange 9 on cavity 1 is used to carry out screw thread with cavity cover board 6
Connection is fixed, at the same time it can also be also provided on the reserved window 120 of GIS pipelines 100 to reversed flange arrangement, so as to fulfill
Cavity 1 and 100 flanged joint of GIS pipelines.
In a kind of selectable embodiment, high-frequency signal receiving part 2 is disc structure made of metal.Preferably
Using stainless steel material, so that high-frequency signal receiving part 2 has corrosion protection ability, extraction element service life is improved.
In a kind of selectable embodiment, connecting rod 4 is threaded rod, and connecting pole 5 is provided with tapped blind hole 51, is connected
Bar 4 is threadedly coupled with connecting pole 5 by tapped blind hole 51.The cooperation of threaded rod and blind hole 51 connects connecting rod 4 and connecting pole 5
Closely, be conducive to the conduction of signal, improve signal extraction effect.
In a kind of selectable embodiment, cavity 1 and cavity cover board 6 are made using stainless steel.Stainless steel has anti-
The ability of corrosion, cavity 1 and cavity cover board 6 can resist rust of the complex external environment to extraction element using stainless steel material
Erosion improves extraction element service life
In a kind of selectable embodiment, airtight and watertight padding 911 is filled in seal groove 91.Airtight and watertight padding 911 can be with
The common sealing materials such as rope or rubber seal are turned round using ceramic fibre to be made, and improve cavity 1 and the sealing of GIS pipelines 100 is imitated
Fruit.
By above technical scheme it is found that this application provides a kind of steep-fronts to impact lower shelf depreciation high-frequency signal extraction dress
It puts, including：Cavity；Cavity one end is provided with cavity bottom surface, and cavity is provided with intercommunicating pore on bottom surface；Cavity bottom surface is positioned at cavity
External side is provided with high-frequency signal receiving part, and the first insulation is provided between high-frequency signal receiving part and cavity bottom surface
Layer；The side that high-frequency signal receiving part is located at cavity bottom surface is provided with connecting rod, and connecting rod is located in intercommunicating pore, and connecting rod is remote
One end from high-frequency signal receiving part is within the cavity, and the diameter of connecting rod is less than connection bore dia；Connecting rod is located at cavity
Interior one end is provided with connecting pole, and the diameter of connecting pole is more than the diameter of connecting rod；The periphery of connecting rod is provided with insulating sleeve,
The diameter of insulating sleeve in the cavity is more than the diameter of connecting pole, and cavity bottom surface is made to be dielectrically separated from connecting rod and connecting pole；Chamber
The body other end is provided with cavity cover board, and connecting hole is provided on cavity cover board, and cavity cover board is provided with electrical connection in connection hole
Head, is provided with banana connector between electrical connector and connecting pole, electrical connector is connect with connecting pole by banana connector.It uses
When, cavity is placed in the reserved window of GIS pipelines, high-frequency signal receiving part is made to be located in GIS pipelines, before carrying out suddenly
During GIS partial discharge detection lower along impact, high-frequency signal receiving part receives GIS device under steep-front surge voltage and locally puts
The initial measurement signal of electricity, initial measurement signal are sent to electricity by connecting rod, connecting pole and the banana connector to insulate with cavity
Connector, it is achieved thereby that impacting the extraction of lower shelf depreciation high-frequency signal to steep-front.
Embodiment two
The embodiment of the present application provides a kind of steep-front impact lower shelf depreciation high frequency testing system, as shown in Fig. 2, this
Apply for the lower shelf depreciation high frequency testing system of steep-front impact that embodiment provides, including：
Extraction element 10, signal processing module 20, signal transmission module 30 and the display shown in the embodiment of the present application one
Terminal 40；Signal processing module 20 is connect with the electrical connector 7 of extraction element 10, and signal processing module 20 is used for extraction element
The initial measurement signal of 10 extractions carries out High frequency filter, exports high-frequency signal measurement；At 30 one end of signal transmission module and signal
Reason module 20 connects, and the other end is connect with display terminal 40；Signal transmission module 30 is aobvious for high-frequency signal measurement to be transmitted to
Show terminal 40.
In a kind of selectable embodiment, signal processing module 20 includes high-frequency filter circuit 201, High frequency filter electricity
Road 201 is used to remove the low-frequency noise in initial measurement signal, exports high-frequency signal measurement.Due to by various external factors
Influence, low-frequency noise can be included in initial measurement signal, low-frequency noise be superimposed upon in the high-frequency signal of shelf depreciation, influence to survey
The accuracy of result is measured, therefore the present embodiment removes the low-frequency noise in initial measurement signal using high-frequency filter circuit 201, it is defeated
Go out high-frequency signal measurement, improve measurement result accuracy.The structure and use high-frequency filter circuit of high-frequency filter circuit carry out high
Frequency filtering belongs to the common knowledge of those skilled in the art, therefore, for the structure of high-frequency filter circuit 201, in the present embodiment
It repeats no more.
In a kind of selectable embodiment, signal transmission module 30 includes analog-digital converter 301, analog-digital converter
301 are used for the digital signal that high-frequency signal measurement is converted into display terminal 40 and can be identified.Due to from signal processing module 20
The high-frequency signal measurement of output is analog signal, and display terminal 40 allows generally for receiving digital signal, therefore, in the present embodiment
Analog signal is converted in digital signal by analog-digital converter 301, so that 40 reception of display terminal is handled, meanwhile, number letter
Number it is easy in the storage medium for being stored in display terminal 40, is easy to achieve and check.
By above technical scheme, it is found that the application provides a kind of, steep-front impacts lower shelf depreciation high frequency testing system
System, including the extraction element that the application provides, signal processing module, signal transmission module and display terminal；Signal processing module
It is connect with the electrical connector of measuring device, receives initial measurement signal for extraction element, and initial measurement signal is carried out high
Frequency filters, and exports high-frequency signal measurement；Signal transmission module one end is connect with signal processing module, and the other end connects with display terminal
It connects；Signal processing module is used to high-frequency signal measurement being transmitted to display terminal, and the measuring system that the application provides passes through measurement
Device extracts initial measurement signal, and initial measurement signal is filtered by signal processing module, removes low-frequency noise, obtains
The high-frequency signal measurement of the lower shelf depreciation of steep-front impact, finally, display terminal is sent to by signal transmission module, makes GIS
The lower shelf depreciation high-frequency signal of equipment steep-front impact quantifies display on display terminal, it is achieved thereby that under being impacted to steep-front
The measurement of shelf depreciation high-frequency signal.
Embodiment three
The embodiment of the present application provides the lower shelf depreciation high frequency testing system of another steep-front impact, such as Fig. 3 institutes
Show, the embodiment of the present application and embodiment two difference lies in：
Signal transmission module 30 further includes electrical to optical converter 302, photoelectric converter 303 and optical cable 304；Electrical to optical converter
302 are located at 301 side of analog-digital converter, are connect with analog-digital converter 301, and photoelectric converter 303 is located at 40 side of display terminal,
It is connect with display terminal 40, electrical to optical converter 302 is connect with photoelectric converter 303 by optical cable 304.
Since for GIS pipelines 100 sometimes up to several hundred kilometers, this just impacts steep-front lower shelf depreciation high-frequency signal
It measures and proposes the requirement of far-end measuring, for the ability that measuring system is made to have far-end measuring in the present embodiment, turn in modulus
The output terminal setting electrical to optical converter 302 of parallel operation 301, converts digital signals into optical signal, and realize long distance using optical cable 304
From low-loss transmission.Display terminal 40 in the present embodiment can be arranged in measuring station, and is set before display terminal 40
Photoelectric converter 303, by the way that optical cable 304 and photoelectric converter 303 are reduced into digital signal by the optical signal transmitted at a distance,
And display terminal 40 is delivered to, it is achieved thereby that impacting the far-end measuring of lower shelf depreciation high-frequency signal to GIS device steep-front.
By above technical scheme, it is found that the application provides a kind of, steep-front impacts lower shelf depreciation high frequency testing system
System, including the extraction element that the application provides, signal processing module, signal transmission module and display terminal；Signal processing module
It is connect with the electrical connector of measuring device, receives initial measurement signal for extraction element, and initial measurement signal is carried out high
Frequency filters, and exports high-frequency signal measurement；Signal transmission module one end is connect with signal processing module, and the other end connects with display terminal
It connects；Signal processing module is used to high-frequency signal measurement being transmitted to display terminal, and the measuring system that the application provides passes through measurement
Device extracts initial measurement signal, and initial measurement signal is filtered by signal processing module, removes low-frequency noise, obtains
The high-frequency signal measurement of the lower shelf depreciation of steep-front impact, finally, display terminal is sent to by signal transmission module, wherein,
High-frequency signal measurement can be converted into optical signal by signal transmission module by digital signal, after optical cable transmits at a distance, also
Original is transferred to display terminal into digital signal, makes the lower shelf depreciation high-frequency signal of GIS device steep-front impact in display terminal
Upper quantization display, it is achieved thereby that impacting the far-end measuring of lower shelf depreciation high-frequency signal to steep-front.
It should be noted that herein, the relational terms of such as " first " and " second " or the like are used merely to one
A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it
Between there are any actual relationship or orders.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only include those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or set
Standby intrinsic element.
Those skilled in the art will readily occur to the application after considering specification and putting into practice utility model disclosed herein
Other embodiments.This application is intended to cover any variations, uses, or adaptations of the application, these modifications are used
Way or adaptive change follow the general principle of the application and including undocumented in the art known of the application
Common sense or conventional techniques.Description and embodiments are considered only as illustratively, and the true scope and spirit of the application are under
The claim in face is pointed out.
It should be understood that the precision architecture that the application is not limited to be described above and be shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.Scope of the present application is only limited by appended claim.
Claims (10)
1. a kind of lower shelf depreciation high-frequency signal extraction element of steep-front impact, which is characterized in that including cavity (1)；
Described cavity (1) one end is provided with cavity bottom surface (11), and intercommunicating pore (12) is provided on the cavity bottom surface (11)；It is described
Cavity bottom surface (11) is being provided with high-frequency signal receiving part (2), the high-frequency signal positioned at the external side of the cavity (1)
The first insulating layer (31) is provided between receiving part (2) and the cavity bottom surface (11)；
The high-frequency signal receiving part (2) is provided with connecting rod (4), the connection positioned at the side of the cavity bottom surface (11)
In the intercommunicating pore (12), the one end of the connecting rod (4) far from the high-frequency signal receiving part (2) is located at bar (4)
In the cavity (1), the diameter of the connecting rod (4) is less than the intercommunicating pore (12) diameter；The connecting rod (4) is positioned at described
One end in cavity (1) is provided with connecting pole (5), and the diameter of the connecting pole (5) is more than the diameter of the connecting rod (4)；Institute
The periphery for stating connecting rod (4) is provided with insulating sleeve (32), and diameter of the insulating sleeve (32) in the cavity (1) is more than
The diameter of the connecting pole (5)；
Cavity (1) other end is provided with cavity cover board (6), is provided between the cavity cover board (6) and the cavity (1)
Second insulating layer (33) is provided with connecting hole (61) on the cavity cover board (6), and the cavity cover board (6) is in the connecting hole
(61) electrical connector (7) is provided at, banana connector (8) is provided between the electrical connector (7) and the connecting pole (5),
The electrical connector (7) is connect with the connecting pole (5) by the banana connector (8).
2. extraction element according to claim 1, which is characterized in that the cavity (1) is positioned at the cavity cover board (6)
Side is provided with abutted flange (9), and the abutted flange (9) is provided with seal groove (91) positioned at the side of the cavity (1).
3. extraction element according to claim 1, which is characterized in that the high-frequency signal receiving part (2) is made of metal
Into disc structure.
4. extraction element according to claim 1, which is characterized in that the connecting rod (4) be threaded rod, the connecting pole
(5) tapped blind hole (51) is provided with, the connecting rod (4) is connected with the connecting pole (5) by the tapped blind hole (51) screw thread
It connects.
5. extraction element according to claim 1, which is characterized in that the cavity (1) and the cavity cover board (6) use
Stainless steel is made.
6. extraction element according to claim 2, which is characterized in that airtight and watertight padding is filled in the seal groove (91)
(911)。
7. a kind of lower shelf depreciation high frequency testing system of steep-front impact, which is characterized in that the system comprises：Right will
Ask 1-6 any extraction element (10), signal processing module (20), signal transmission module (30) and the display terminal (40)；
The signal processing module (20) connect with the electrical connector (7) of the extraction element (10)；
Described signal transmission module (30) one end is connect with the signal processing module (20), the other end and the display terminal
(40) it connects.
8. measuring system according to claim 7, which is characterized in that the signal processing module (20) includes High frequency filter
Circuit (201).
9. measuring system according to claim 7, which is characterized in that the signal transmission module (30) is including analog-to-digital conversion
Device (301).
10. measuring system according to claim 9, which is characterized in that the signal transmission module (30) further includes electric light
Converter (302), photoelectric converter (303) and optical cable (304)；The electrical to optical converter (302) is positioned at the analog-digital converter
(301) side is connect with the analog-digital converter (301), and the photoelectric converter (303) is positioned at the display terminal (40) one
Side is connect with the display terminal (40), and the electrical to optical converter (302) passes through the light with the photoelectric converter (303)
Cable (304) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721332810.2U CN207473037U (en) | 2017-10-16 | 2017-10-16 | The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system |
Applications Claiming Priority (1)
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| CN107505552A (en) * | 2017-10-16 | 2017-12-22 | 云南电网有限责任公司电力科学研究院 | The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system |
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| CN107505552A (en) * | 2017-10-16 | 2017-12-22 | 云南电网有限责任公司电力科学研究院 | The lower shelf depreciation high-frequency signal extraction element of steep-front impact and measuring system |
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