CN105891689A - Partial discharge integrated probe based on capacitance voltage division method VFTO measurement sensor - Google Patents
Partial discharge integrated probe based on capacitance voltage division method VFTO measurement sensor Download PDFInfo
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- CN105891689A CN105891689A CN201610232049.9A CN201610232049A CN105891689A CN 105891689 A CN105891689 A CN 105891689A CN 201610232049 A CN201610232049 A CN 201610232049A CN 105891689 A CN105891689 A CN 105891689A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1254—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of gas-insulated power appliances or vacuum gaps
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
- G01R31/3274—Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a partial discharge integrated probe based on a capacitance voltage division method VFTO measurement sensor belonging to the high voltage device partial discharge on-line detection technology field. The partial discharge integrated probe comprises an AC voltage source V1, a probe-to-GIS guide rod capacitor C1, a probe-to-ground capacitor C0, a primary capacitance voltage division box, a cable T1, a secondary capacitance voltage division box, and an oscilloscope. The primary capacitance voltage division box is parallely connected with the probe-to-ground capacitor C0 by a first port and a second port, and then is serially connected with the voltage source V1 and the probe-to-GIS guide rod capacitor C1, and the primary capacitance voltage division box is connected with one end of the cable T1 by a third port. The secondary capacitance voltage division box is parallely connected with the oscilloscope by the first port and the second port, and the secondary capacitance voltage division box is connected with the other end of the cable T1 by the third port. The partial discharge can be measured by adopting the ultrahigh frequency method, and the partial discharge integrated probe is disposed in the GIS, and therefore the external interference can be effectively suppressed, and the sensitivity is high, and the effective partial discharge monitoring method can be provided, and then the defect of the conventional ultrahigh voltage system of the insufficient partial discharge monitoring can be remedied.
Description
Technical field
The present invention relates to high-tension apparatus shelf depreciation online measuring technique field, particularly relate to one
The charging integrated probe of office of sensor is measured based on capacitance partial pressure method VFTO.
Background technology
In recent years, along with the development of ultra-high voltage AC transmission technology, gas-insulated switchgear
(Gas-insulated Metal-enclosed Switchgear, GIS) is in extra-high voltage power transformation
Acquisition of standing extensively is applied.In GIS, disconnecting switch is when the unloaded short bus of folding, can produce express speed
Transient overvoltage (Very Fast Transient Overvoltage, VFTO), to GIS and
The winding device insulation that it connects produces impact.Research before shows, GIS disconnecting switch is in operation
Time can produce frequency MHz up to a hundred, the VFTO of rising edge number ns, its actual measurement maximum up to 2.27
Times a reference value.Along with the raising of transmission system electric pressure, the insulation margin of electrical equipment can reduce,
The harm that VFTO causes on extra-high voltage equipment will be bigger.Meanwhile, isolator operation can produce
Transient state housing current potential (Transient Enclosure Voltage, TEV) and electromagnetic disturbance,
To GIS and close on secondary device insulation produce threaten, disturb it properly functioning, and threaten operation
Personal security.Along with the raising of system voltage grade, VFTO, TEV and electromagnetic disturbance are more and more tighter
Weight, affects the most increasing.When UHVAC demonstration project puts into operation, because worrying above-mentioned danger
Evil, the most non-hot line job of extra-high voltage GIS disconnecting switch, runs to system and brings the most not
Just, need badly carry out ultra-high voltage GIS equipment VFTO research.
In order to solve this outstanding problem of ultra-high voltage GIS equipment VFTO that extra-high voltage project faces,
Within 2009, rising, State Grid Corporation of China sets up the project, and by exchange, the Ministry of Construction takes the lead, tissue China DianKeYuan,
State Network Electric Power Research Institute, North China Electric Power University, Tsing-Hua University, Xi'an Communications University, Henan
The flat height of flat high electrically limited company and Xi'an western electric switch Electric Applicance Co., Ltd, carry out extra-high voltage
The production, teaching & research research cooperation of GIS device VFTO, brainstorm project was divided into for two phases, and has obtained state
Family 973 plan " the underlying issue research of alternating current-direct current system for ultra-high voltage transmission electromagnetism and insulation characterisitic "
Support.
Office is placed on line context of detection and illustrates as a example by GIS.In recent years, GIS partial discharge exists
Line monitoring system application in electrical network is increasingly extensive, has taken on a certain scale.Main test
Principle includes superfrequency method (Ultra High Frequency, UHF), detection frequency band at 300MHz～
Between 1500MHz, it has, and antijamming capability is strong, sensitivity high, and this non-connects
The metering system of touch is the most safer for secondary device and testing staff, system architecture letter
Single, it is particularly suitable for on-line monitoring, thus compares to other detection method and there is obvious advantage.
All parts of the country are found that inside a large amount of GIS by superfrequency on-line monitoring and live testing in recent years
Defect case so that it is become the most important detection means in current GIS on-line checking field.
But existing ultra-high voltage GIS equipment scene office puts in monitoring and generally there is detection sensitivity not
Reach and the problem of poor anti jamming capability.
Summary of the invention
In view of this, the present invention provides a kind of office measuring sensor based on capacitance partial pressure method VFTO
Charging integrated probe, it uses superfrequency method to measure shelf depreciation, is installed on inside GIS, can have
Effect suppression external interference, highly sensitive, thus more suitable for practicality.
In order to reach above-mentioned first purpose, what the present invention provided surveys based on capacitance partial pressure method VFTO
The technical scheme of the charging integrated probe of office of quantity sensor is as follows:
The charging integrated probe of office measuring sensor based on capacitance partial pressure method VFTO that the present invention provides
Including alternating-current voltage source V1, probe to GIS guide rod electric capacity C1, probe direct-to-ground capacitance C0, once
Capacitance partial pressure box, cable T1, secondary capacitance partial pressure box, oscillograph,
A described capacitance partial pressure box is the most electric with described probe by the first port and the second port
With described voltage source V1, probe, GIS guide rod electric capacity C1 is connected again after holding C0 parallel connection, described one
Secondary capacitance partial pressure box is connected to one end of described cable T1 by the 3rd port；
Described secondary capacitance partial pressure box is in parallel with described oscillograph by the first port and the second port,
Described secondary capacitance partial pressure box is connected to the other end of described cable T1 by the 3rd port.
The charging integrated probe of office measuring sensor based on capacitance partial pressure method VFTO that the present invention provides
Also can be applied to the following technical measures to achieve further.
As preferably, described probe is 1pF to GIS guide rod electric capacity C1, described probe direct-to-ground capacitance
C0 is 1nF.
As preferably, be provided with in a capacitance partial pressure box electric capacity C2 in a capacitance partial pressure box box,
Distribution resistance Rm,
First port of a described capacitance partial pressure box is in electricity in a described capacitance partial pressure box box
Hold between C2 and described build-out resistor Rm,
Second port of a described capacitance partial pressure box is in electric capacity in a described capacitance partial pressure box box
Between C2 and the first ground voltage D1,
In a described capacitance partial pressure box box, electric capacity C2 is 1200pF, and described build-out resistor Rm is 50
Ω。
As preferably, in described secondary capacitance partial pressure box, include capacitor high voltage resistance R1, high-voltage capacitance
C3, supplementary low-voltage capacitance C4,
After described capacitor high voltage resistance R1 is in parallel with described high-voltage capacitance C3 again with the second ground voltage D2,
Supplement low-voltage capacitance C4 series connection,
First port of described secondary capacitance partial pressure box is in described high-tension resistive R1, high-voltage capacitance
Between C3, supplementary low-voltage capacitance C4,
First port of described secondary capacitance partial pressure box is in described supplementary low-voltage capacitance C4 with described
Between ground voltage,
Described capacitor high voltage resistance R1 is 20M Ω, high-voltage capacitance C3 is 2pF, supplement low-voltage capacitance
The value of C4 is adjustable.
As preferably, described oscillograph includes oscillograph access resistance R0, oscillograph entrance capacitance
C0,
Parallel connection between described oscillograph access resistance R0, oscillograph entrance capacitance C0,
Described oscillograph access resistance R0 is 1M Ω, and described oscillograph entrance capacitance C0 is 13pF.
As preferably, the described charging integrated spy of office measuring sensor based on capacitance partial pressure method VFTO
Head also include switching switch, office put measuring circuit, VFTO measuring circuit, secondary lumped capacity,
Host computer acquisition system,
Described secondary lumped capacity is arranged in described VFTO measuring circuit；
Described switching switch puts measuring circuit or described VFTO survey for alternatively connecting described office
Amount circuit；
Described host computer acquisition system is for sending control command to described switching switch so that described
Switching switch is put in described office and is carried out selecting a property between measuring circuit or described VFTO measuring circuit
Switching.
As preferably, described host computer acquisition system is switched to described switching by remote data transmission
Send control command.
As preferably, the communication mode between described host computer acquisition system and described switching switch is
Radio communication or wire communication.
As preferably, described radio communication is selected from Bluetooth technology, Wi-Fi, 4G, 3G, GPRS,
One in zigbee.
As preferably, described wire communication selected from RS-232, RS-485, USB, I2C, TWI,
One in SPI, 1WIRE, Ethernet interface.
The charging integrated probe of office measuring sensor based on capacitance partial pressure method VFTO that the present invention provides
Including alternating-current voltage source V1, probe to GIS guide rod electric capacity C1, probe direct-to-ground capacitance C0, once
Capacitance partial pressure box, cable T1, secondary capacitance partial pressure box, oscillograph, one time capacitance partial pressure box leads to
Cross the first port and the second port with probe direct-to-ground capacitance C0 in parallel after again with voltage source V1, probe
Connecting GIS guide rod electric capacity C1, one time capacitance partial pressure box is connected to cable T1 by the 3rd port
One end；Secondary capacitance partial pressure box is in parallel with oscillograph by the first port and the second port, secondary
Capacitance partial pressure box is connected to the other end of cable T1 by the 3rd port.It is measured frequency band and reaches
5.3Hz-163Hz, uses superfrequency method to measure shelf depreciation, is installed on inside GIS, can be effective
Suppression external interference, highly sensitive, it is that monitoring means is put in a kind of very effective office, compensate for mesh
The deficiency of monitoring is put in front extra-high voltage system office.
Accompanying drawing explanation
By reading the detailed description of hereafter preferred embodiment, various other advantage and benefit pair
Will be clear from understanding in those of ordinary skill in the art.Accompanying drawing is only used for illustrating preferred embodiment
Purpose, and be not considered as limitation of the present invention.And in whole accompanying drawing, with identical
Reference symbol represents identical parts.In the accompanying drawings:
The office measuring sensor based on capacitance partial pressure method VFTO that Fig. 1 provides for the embodiment of the present invention
The circuit theory diagrams of charging integrated probe；
Fig. 2 is for when input voltage beingTime, the base that the embodiment of the present invention provides
The electricity that the charging integrated probe of office of sensor shows on oscillograph is measured in capacitance partial pressure method VFTO
Pressure-frequency variation relation schematic diagram；
Fig. 3 is for when guide rod voltage beingTime, the base that the embodiment of the present invention provides
The width of voltage on office's charging integrated probe N head fuse that capacitance partial pressure method VFTO measures sensor
Voltage-frequency variation relation schematic diagram is answered in frequency response；
The office measuring sensor based on capacitance partial pressure method VFTO that Fig. 4 provides for the embodiment of the present invention
Charging integrated probe switchs the typical structure schematic diagram of fit applications with switching.
Detailed description of the invention
The present invention solves the problem that prior art exists, it is provided that a kind of based on capacitance partial pressure method VFTO
Measuring the charging integrated probe of office of sensor, it uses superfrequency method to measure shelf depreciation, is installed on
Inside GIS, can effectively suppress external interference, highly sensitive, thus more suitable for practicality.
By further illustrate technological means that the present invention taked by reaching predetermined goal of the invention and
Effect, below in conjunction with accompanying drawing and preferred embodiment, to propose according to the present invention based on capacitance partial pressure
Method VFTO measures the charging integrated probe of office of sensor, its detailed description of the invention, structure, feature
And effect, after describing in detail such as.In the following description, different " embodiments " or " real
Execute example " refer to be not necessarily same embodiment.Additionally, special characteristic in one or more embodiment,
Structure or feature can be combined by any suitable form.
The terms "and/or", a kind of incidence relation describing affiliated partner, table
Showing and can there are three kinds of relations, such as, A and/or B, concrete is interpreted as: can comprise simultaneously
Have A and B, can be with individualism A, it is also possible to individualism B, it is possible to possess above-mentioned three kinds arbitrary
The situation of kind.
Embodiment one
Seeing accompanying drawing 1, what the embodiment of the present invention provided measures sensor based on capacitance partial pressure method VFTO
The charging integrated probe of office include alternating-current voltage source V1, probe to GIS guide rod electric capacity C1, probe
Direct-to-ground capacitance C0, capacitance partial pressure box, cable T1, secondary capacitance partial pressure box, an oscillograph,
Capacitance partial pressure box by the first port and the second port in parallel with the direct-to-ground capacitance C0 that pops one's head in after again
Connecting GIS guide rod electric capacity C1 with voltage source V1, probe, a capacitance partial pressure box is by the 3rd
Port is connected to one end of cable T1；Secondary capacitance partial pressure box passes through the first port and the second port
In parallel with oscillograph, secondary capacitance partial pressure box is connected to the other end of cable T1 by the 3rd port.
The office based on capacitance partial pressure method VFTO measurement sensor that the embodiment of the present invention one provides puts one
Bodyization probe includes that alternating-current voltage source V1, probe are to GIS guide rod electric capacity C1, probe direct-to-ground capacitance
C0, capacitance partial pressure box, cable T1, secondary capacitance partial pressure box, an oscillograph, an electric capacity
Dividing potential drop box by the first port and the second port in parallel with the direct-to-ground capacitance C0 that pops one's head in after again with voltage source
GIS guide rod electric capacity C1 is connected by V1, probe, and one time capacitance partial pressure box is connected by the 3rd port
One end in cable T1；Secondary capacitance partial pressure box is by the first port and the second port and oscillograph
Parallel connection, secondary capacitance partial pressure box is connected to the other end of cable T1 by the 3rd port.Measure frequency
Band reaches 5.3Hz-163Hz, uses superfrequency method to measure shelf depreciation, is installed on inside GIS,
Can effectively suppress external interference, highly sensitive, it is that monitoring means is put, more in a kind of very effective office
Mend current extra-high voltage system office and put the deficiency of monitoring.
See accompanying drawing 2, for when input voltage beingTime, the embodiment of the present invention
There is provided measures the charging integrated probe of office of sensor on oscillograph based on capacitance partial pressure method VFTO
In the voltage-frequency variation relation schematic diagram of display, flat amplitude is 1.89V.Measure system
The theoretical intrinsic standoff ratio of system is 466666, consistent with former calibration result (478425,468353).
Under VFTO probe no-load condition, being equivalent to load open circuit, in the case of power frequency, N head fuse is the most electric
Voltage crest value is 88.2V, and N pressure for 2000V, will not produce risk.
See accompanying drawing 3, when guide rod voltage isTime the embodiment of the present invention provide
Based on capacitance partial pressure method VFTO measure sensor office's charging integrated probe N head fuse on voltage
Amplitude-frequency response voltage-frequency variation relation schematic diagram in, power frequency situation voltage is 1.39mV, thunder
Electricity frequency range (500kHz) voltage is 13V, there is not any insulation risk.Survey is put in simulation office
Test result shows, sensor detection sensitivity is put up to 5pC in VFTO office in laboratory conditions.
From this it can be concluded that VFTO pops one's head in the case of removing secondary lumped capacity module, complete
Entirely can put sensor as office to use.
Wherein, probe is 1pF to GIS guide rod electric capacity C1, and probe direct-to-ground capacitance C0 is 1nF.
Wherein, electric capacity C2, coupling electricity in a capacitance partial pressure box box it is provided with in a capacitance partial pressure box
Resistance Rm, the first port of a capacitance partial pressure box be in a capacitance partial pressure box box electric capacity C2 with
Between build-out resistor Rm, the second port of a capacitance partial pressure box is in a capacitance partial pressure box box
Between interior electric capacity C2 and the first ground voltage D1, in a capacitance partial pressure box box, electric capacity C2 is
1200pF, build-out resistor Rm is 50 Ω.
Wherein, capacitor high voltage resistance R1, high-voltage capacitance C3, benefit are included in secondary capacitance partial pressure box
Fill low-voltage capacitance C4, after capacitor high voltage resistance R1 is in parallel with high-voltage capacitance C3 again with the second ground voltage
D2, supplementary low-voltage capacitance C4 series connection, the first port of secondary capacitance partial pressure box is in high-tension resistive
Between R1, high-voltage capacitance C3, supplementary low-voltage capacitance C4, the first port of secondary capacitance partial pressure box
Being between supplementary low-voltage capacitance C4 and ground voltage, capacitor high voltage resistance R1 is 20M Ω, high pressure
Electric capacity C3 is 2pF, the value of supplementary low-voltage capacitance C4 is adjustable.Wherein, low-voltage capacitance C4 is supplemented
Different oscillograph entrance capacitances are slightly distinguished, and adjust and supplement low pressure in secondary resistive-capacitive voltage divider box manufactures
Electric capacity C4 value, makes resistive-capacitive voltage divider than consistent.
Wherein, oscillograph includes oscillograph access resistance R0, oscillograph entrance capacitance C0, oscillography
Parallel connection between device access resistance R0, oscillograph entrance capacitance C0, oscillograph access resistance R0 is
1M Ω, oscillograph entrance capacitance C0 are 13pF.
Embodiment two
GIS isolator operation can produce frequency be up to 70MHz, fast along less than 5ns when rising
Fast transient overvoltage (VFTO), its actual measurement maximum is up to 2.27 times of a reference values (881kV).
The when that so traditional VFTO pops one's head in, external oscillograph measuring, it is necessary to secondary lump
Capacitance structure is depressured, and otherwise can damage measurement equipment.But, put on-line measurement when carrying out office
When, due to office, to put the signal of generation relatively weak, so can not the when of now detection
With buck configuration.
Therefore, sensor is measured what the embodiment of the present invention one provided based on capacitance partial pressure method VFTO
The charging integrated probe of office on the basis of, the embodiment of the present invention two provide based on capacitance partial pressure method
The charging integrated probe of office of VFTO measurement sensor also includes switching switch, measuring circuit is put in office,
VFTO measuring circuit, secondary lumped capacity, host computer acquisition system, secondary lumped capacity is arranged
In VFTO measuring circuit；Switching switch puts measuring circuit or VFTO for alternatively connection office
Measuring circuit；Host computer acquisition system is for sending control command to switching switch so that switching is opened
Close to put in office and carry out between measuring circuit or VFTO measuring circuit selecting a property switching.
Wherein, with protected location in secondary lumped capacity voltage reduction module, instantaneous peak value is run into bigger
Fortuitous event, external measurement equipment can be protected not damaged by high pressure spine signal.
Wherein, host computer acquisition system sends control life by remote data transmission to switching switch
Order.
Wherein, host computer acquisition system and switching switch between communication mode be radio communication or
Wire communication.
Wherein, radio communication is selected from Bluetooth technology, Wi-Fi, 4G, in 3G, GPRS, zigbee
One.
Wherein, wire communication selected from RS-232, RS-485, USB, I2C, TWI, SPI, 1WIRE,
One in Ethernet interface.
In the present embodiment, communication mode is that the standard transmission distance of RS-485, RS485 can pass 1200
Rice, uses the RS485 private cable of the low decay of impedance matching can break through this value, and representative value reaches
1900 meters.So being entirely capable of meeting the requirement of site operation wiring.
Although preferred embodiments of the present invention have been described, but those skilled in the art once
The substantially creative concept of cicada, then can make other change and amendment to these embodiments.So,
Claims are intended to be construed to include preferred embodiment and fall into all of the scope of the invention
Change and amendment.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not take off
From the spirit and scope of the present invention.So, if these amendments of the present invention and modification belong to this
Within the scope of bright claim and equivalent technologies thereof, then the present invention be also intended to comprise these change and
Including modification.
Claims (10)
1. measure the charging integrated probe of office of sensor based on capacitance partial pressure method VFTO, it is special
Levy and be, including alternating-current voltage source V1, probe to GIS guide rod electric capacity C1, probe direct-to-ground capacitance
C0, capacitance partial pressure box, cable T1, secondary capacitance partial pressure box, an oscillograph,
A described capacitance partial pressure box is the most electric with described probe by the first port and the second port
With described voltage source V1, probe, GIS guide rod electric capacity C1 is connected again after holding C0 parallel connection, described one
Secondary capacitance partial pressure box is connected to one end of described cable T1 by the 3rd port；
Described secondary capacitance partial pressure box is in parallel with described oscillograph by the first port and the second port,
Described secondary capacitance partial pressure box is connected to the other end of described cable T1 by the 3rd port.
Office based on capacitance partial pressure method VFTO measurement sensor the most according to claim 1 puts
Integrated probe, it is characterised in that preferably, described probe is 1pF to GIS guide rod electric capacity C1,
Described probe direct-to-ground capacitance C0 is 1nF.
Office based on capacitance partial pressure method VFTO measurement sensor the most according to claim 1 puts
Integrated probe, it is characterised in that be provided with in a capacitance partial pressure box in a capacitance partial pressure box box
Electric capacity C2, build-out resistor Rm,
First port of a described capacitance partial pressure box is in electricity in a described capacitance partial pressure box box
Hold between C2 and described build-out resistor Rm,
Second port of a described capacitance partial pressure box is in electric capacity in a described capacitance partial pressure box box
Between C2 and the first ground voltage D1,
In a described capacitance partial pressure box box, electric capacity C2 is 1200pF, and described build-out resistor Rm is 50
Ω。
Office based on capacitance partial pressure method VFTO measurement sensor the most according to claim 1 puts
Integrated probe, it is characterised in that include in described secondary capacitance partial pressure box capacitor high voltage resistance R1,
High-voltage capacitance C3, supplementary low-voltage capacitance C4,
After described capacitor high voltage resistance R1 is in parallel with described high-voltage capacitance C3 again with the second ground voltage D2,
Supplement low-voltage capacitance C4 series connection,
First port of described secondary capacitance partial pressure box is in described high-tension resistive R1, high-voltage capacitance
Between C3, supplementary low-voltage capacitance C4,
First port of described secondary capacitance partial pressure box is in described supplementary low-voltage capacitance C4 with described
Between ground voltage,
Described capacitor high voltage resistance R1 is 20M Ω, high-voltage capacitance C3 is 2pF, supplement low-voltage capacitance
The value of C4 is adjustable.
Office based on capacitance partial pressure method VFTO measurement sensor the most according to claim 1 puts
Integrated probe, it is characterised in that described oscillograph includes oscillograph access resistance R0, oscillography
Device entrance capacitance C0,
Parallel connection between described oscillograph access resistance R0, oscillograph entrance capacitance C0,
Described oscillograph access resistance R0 is 1M Ω, and described oscillograph entrance capacitance C0 is 13pF.
Office based on capacitance partial pressure method VFTO measurement sensor the most according to claim 1 puts
Integrated probe, it is characterised in that also include that switching switch, office put measuring circuit, VFTO surveys
Amount circuit, secondary lumped capacity, host computer acquisition system,
Described secondary lumped capacity is arranged in described VFTO measuring circuit；
Described switching switch puts measuring circuit or described VFTO survey for alternatively connecting described office
Amount circuit；
Described host computer acquisition system is for sending control command to described switching switch so that described
Switching switch is put in described office and is carried out selecting a property between measuring circuit or described VFTO measuring circuit
Switching.
Office based on capacitance partial pressure method VFTO measurement sensor the most according to claim 6 puts
Integrated probe, it is characterised in that described host computer acquisition system passes through remote data transmission to institute
State switching switch and send control command.
Office based on capacitance partial pressure method VFTO measurement sensor the most according to claim 7 puts
Integrated probe, it is characterised in that between described host computer acquisition system and described switching switch
Communication mode is radio communication or wire communication.
Office based on capacitance partial pressure method VFTO measurement sensor the most according to claim 8 puts
Integrated probe, it is characterised in that described radio communication is selected from Bluetooth technology, Wi-Fi, 4G,
One in 3G, GPRS, zigbee.
The office measuring sensor based on capacitance partial pressure method VFTO the most according to claim 8
Charging integrated probe, it is characterised in that described wire communication selected from RS-232, RS-485, USB,
One in I2C, TWI, SPI, 1WIRE, Ethernet interface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610232049.9A CN105891689A (en) | 2016-04-14 | 2016-04-14 | Partial discharge integrated probe based on capacitance voltage division method VFTO measurement sensor |
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| CN201610232049.9A CN105891689A (en) | 2016-04-14 | 2016-04-14 | Partial discharge integrated probe based on capacitance voltage division method VFTO measurement sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841713A (en) * | 2016-12-30 | 2017-06-13 | 平高集团有限公司 | A kind of very fast transient overvoltage generation device |
| CN111487512A (en) * | 2020-06-04 | 2020-08-04 | 云南电网有限责任公司电力科学研究院 | VFTO and partial discharge monitoring system and method for GIS transformer substation |
| CN113325224A (en) * | 2021-06-24 | 2021-08-31 | 云南电网有限责任公司电力科学研究院 | GIS steep wave measurement system based on optical fiber pulse |
| CN113702780A (en) * | 2021-08-20 | 2021-11-26 | 中国南方电网有限责任公司超高压输电公司大理局 | BP neural network-based high-voltage capacitor online monitoring method and device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551434A (en) * | 2009-05-13 | 2009-10-07 | 中南大学 | Transformer partial discharge positioning method base on ultra high frequency detection technology |
| CN101788603A (en) * | 2010-03-08 | 2010-07-28 | 华北电力大学 | VFTO measuring system |
| CN101865987A (en) * | 2010-06-17 | 2010-10-20 | 西安交通大学 | Capacitance sensor calibration system for measuring very fast transient overvoltage (VFTO) |
| CN202119871U (en) * | 2011-07-01 | 2012-01-18 | 昆明益通美尔防雷工程有限公司 | Geographic information system (GIS) partial discharge intelligent on-line monitoring device |
| CN102590718A (en) * | 2012-02-22 | 2012-07-18 | 华北电力大学 | System for GIS (Global Information System) partial discharge measurement and VFTO (Very Fast Transient Overvoltage) measurement |
| CN102608388A (en) * | 2012-03-13 | 2012-07-25 | 中国电力科学研究院 | VFTO (very fast transient overvoltage) measurement method and system |
| CN103105521A (en) * | 2013-01-29 | 2013-05-15 | 华北电力大学 | Very fast transient overvoltage (VFTO) remote measurement system and method |
| CN103149545A (en) * | 2013-01-29 | 2013-06-12 | 华北电力大学 | Testing method, testing device, testing equipment and testing system of very fast transient overvoltage (VFTO) sensor |
| EP2747094A1 (en) * | 2012-12-21 | 2014-06-25 | ABB Technology AG | Very fast transient overvoltage attenuator |
| JP2015075482A (en) * | 2013-10-09 | 2015-04-20 | 有限会社 山本エンジニアリング | Partial discharge detection probe, portable partial discharge measurement device and measurement method |
| CN205539343U (en) * | 2016-04-14 | 2016-08-31 | 华北电力大学 | Integration probe is put in office based on electric capacity divides platen press VFTO measuring transducer |
-
2016
- 2016-04-14 CN CN201610232049.9A patent/CN105891689A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101551434A (en) * | 2009-05-13 | 2009-10-07 | 中南大学 | Transformer partial discharge positioning method base on ultra high frequency detection technology |
| CN101788603A (en) * | 2010-03-08 | 2010-07-28 | 华北电力大学 | VFTO measuring system |
| CN101865987A (en) * | 2010-06-17 | 2010-10-20 | 西安交通大学 | Capacitance sensor calibration system for measuring very fast transient overvoltage (VFTO) |
| CN202119871U (en) * | 2011-07-01 | 2012-01-18 | 昆明益通美尔防雷工程有限公司 | Geographic information system (GIS) partial discharge intelligent on-line monitoring device |
| CN102590718A (en) * | 2012-02-22 | 2012-07-18 | 华北电力大学 | System for GIS (Global Information System) partial discharge measurement and VFTO (Very Fast Transient Overvoltage) measurement |
| CN102608388A (en) * | 2012-03-13 | 2012-07-25 | 中国电力科学研究院 | VFTO (very fast transient overvoltage) measurement method and system |
| EP2747094A1 (en) * | 2012-12-21 | 2014-06-25 | ABB Technology AG | Very fast transient overvoltage attenuator |
| CN103105521A (en) * | 2013-01-29 | 2013-05-15 | 华北电力大学 | Very fast transient overvoltage (VFTO) remote measurement system and method |
| CN103149545A (en) * | 2013-01-29 | 2013-06-12 | 华北电力大学 | Testing method, testing device, testing equipment and testing system of very fast transient overvoltage (VFTO) sensor |
| JP2015075482A (en) * | 2013-10-09 | 2015-04-20 | 有限会社 山本エンジニアリング | Partial discharge detection probe, portable partial discharge measurement device and measurement method |
| CN205539343U (en) * | 2016-04-14 | 2016-08-31 | 华北电力大学 | Integration probe is put in office based on electric capacity divides platen press VFTO measuring transducer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841713A (en) * | 2016-12-30 | 2017-06-13 | 平高集团有限公司 | A kind of very fast transient overvoltage generation device |
| CN111487512A (en) * | 2020-06-04 | 2020-08-04 | 云南电网有限责任公司电力科学研究院 | VFTO and partial discharge monitoring system and method for GIS transformer substation |
| CN113325224A (en) * | 2021-06-24 | 2021-08-31 | 云南电网有限责任公司电力科学研究院 | GIS steep wave measurement system based on optical fiber pulse |
| CN113702780A (en) * | 2021-08-20 | 2021-11-26 | 中国南方电网有限责任公司超高压输电公司大理局 | BP neural network-based high-voltage capacitor online monitoring method and device |
| CN113702780B (en) * | 2021-08-20 | 2024-01-19 | 中国南方电网有限责任公司超高压输电公司大理局 | BP neural network-based high-voltage power supply online monitoring method and device |
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