CN102072982B - Device and system for acquiring very fast transient overvoltage sensing signal - Google Patents
Device and system for acquiring very fast transient overvoltage sensing signal Download PDFInfo
- Publication number
- CN102072982B CN102072982B CN2010105197959A CN201010519795A CN102072982B CN 102072982 B CN102072982 B CN 102072982B CN 2010105197959 A CN2010105197959 A CN 2010105197959A CN 201010519795 A CN201010519795 A CN 201010519795A CN 102072982 B CN102072982 B CN 102072982B
- Authority
- CN
- China
- Prior art keywords
- fast transient
- transient overvoltage
- inverter
- obtains
- transducing signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001052 transient effect Effects 0.000 title claims abstract description 89
- 239000002184 metal Substances 0.000 claims abstract description 7
- 230000002463 transducing effect Effects 0.000 claims description 73
- 238000012360 testing method Methods 0.000 claims description 8
- 239000013307 optical fiber Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 230000006855 networking Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 10
- 230000005670 electromagnetic radiation Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a device and a system for acquiring a very fast transient overvoltage sensing signal. The device comprises a shielding box, a power supply, an inverter, an oscilloscope and a photoelectric converter, wherein the shielding box is separated into an upper cavity and a lower cavity by a metal clapboard, and the upper and lower cavities accommodate the power supply, the inverter, the oscilloscope and the photoelectric converter respectively. The provided device and the system for acquiring the very fast transient overvoltage sensing signal can be grounded through a geographic information system (GIS) shell only (grounded through only one point), and equipment cannot be damaged due to high potential rise; and compared with the prior art, the device effectively reduces the influence of strong transient electromagnetic radiation and ground potential rise on measurement systems except a sensor, so that the oscilloscope safely and accurately measures and records the sensing signal.
Description
Technical field
The present invention relates to very fast transient (Very Fast Transient; VFT) field of measurement; Relate in particular to a kind of gas-insulated metal-enclosed combined electrical apparatus of extra-high voltage (Gas Insulated Switchgear that obtains; GIS) very fast transient overvoltage (Very Fast Transient Overvoltage, VFTO) device of transducing signal and system.
Background technology
In the operating process of the GIS of extra-high voltage 1100kV disconnector, because repeatedly prebreakdown takes place fracture or bang is worn, perhaps conducting rod can produce the voltage wave of propagating to breakdown point two side directions along conducting rod to earth fault; This voltage wave is in the discontinuous local catadioptric that takes place of wave impedance, and catadioptric voltage wave and primary voltage ripple superpose, and form complicated very fast transient (VFT) process.This phenomenon not only can produce inner transient state process, also can produce outside transient state process.Inner transient state process mainly is that (Very Fast Transient Overvoltage, VFTO), promptly conducting rod is to the superpotential of shell for very fast transient overvoltage.Outside transient state process comprise mainly that the earth potential of GIS shell rises and GIS to the electromagnetic radiation of outside etc.
The waveform of very fast transient overvoltage (VFTO) and amplitude are very crucial to the Insulation Coordination design of GIS and coiled pipe type electrical equipment (like transformer etc.).Therefore, how can use oscilloscope measurement to have very important significance safely, exactly to waveform and the amplitude of VFTO.
The VFT process can cause the instantaneous rising of GIS housing current potential, and promptly different earth points have different potential, and this potential difference (PD) is by the amplitude and the steepness decision of the voltage wave of being propagated.The amplitude of voltage wave and steepness are big more, and earthy instantaneous rising amplitude is big more.In addition, the strong electromagnetic radiation of following in the VFT process also can cause interference to measurement, influences the accuracy of measurement result.Under this environment during the use oscillograph, need create necessary condition for oscillographic safety and measurement result accurate, promptly make oscillograph be operated in the safe environment, and have strong antijamming capability.
At present, measure among the GIS VFTO more accurately method be to adopt built-in sensors (like hand window formula capacitive transducer) to measure.Fig. 1 illustrates the structural representation of the device that uses oscilloscope measurement VFTO waveform in the prior art.As shown in Figure 1; Oscillograph is inserted in the shielded box; Be placed on the position (for example on ground or the insulating support) of being convenient to personnel operation, adopt isolating transformer to supply power to oscillograph, the signal of sensor that is installed in above the GIS is measured through one section long concentric cable introducing oscillograph.In measuring process, whenever carry out a test, all need manual work to open shielded box, operation oscillograph and record data are tested after covering shielded box more next time.Owing to during in-site measurement, often will carry out lot of test.Like this, existing method is complex operation but also receive electromagnetic interference (EMI) easily not only, can be owing to earth potential rises the too high measuring equipment that damages when serious.
In sum, how under strong electromagnetic and highland potential rise disturbed condition, obtain the sensor signal of the VFTO that produces in the GIS operating process very easily, and guarantee that the accuracy of this signal becomes the technical matters that this area needs to be resolved hurrily.
Summary of the invention
The technical matters that the present invention will solve provides a kind of device and system that obtains the very fast transient overvoltage transducing signal; Solve the technical matters of the transducing signal of the VFTO that produces when using oscillograph to obtain isolator operation in the extra-high voltage GIS, can make things convenient for the sensor signal that detects VFTO exactly.
One aspect of the present invention provides a kind of device that obtains the very fast transient overvoltage transducing signal, and this device comprises: shielded box, power supply, inverter, oscillograph and photoelectric commutator; Wherein shielded box is divided into two chambers up and down by metal partion (metp), holds power supply, inverter and oscillograph, photoelectric commutator respectively.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, it is the needed power mode of oscillograph that inverter is used for power source conversion.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, photoelectric commutator is through the light signal of optical fiber receiving remote control, and converts light signal into electric signal in order to realize oscillographic control.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, the VFTO survey sensor is connected with oscillograph through concentric cable, in order to the VFTO signal that is detected is imported in the oscillograph.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, this device also comprises: the power supply filtrator is used for the power supply signal of inverter output is filtered.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, power supply filtrator and inverter are set in the same chamber of shielded box.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, power supply filtrator and inverter are separately positioned in the different chamber of shielded box.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, shielded box is directly fixed on the shell of gas-insulated metal-enclosed combined electrical apparatus through bolt.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, have electric the contact between shielded box and the shell.
Another aspect of the present invention provides a kind of system that obtains the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal, and this system comprises: be selected from the device that obtains the very fast transient overvoltage transducing signal in aforementioned any; Computing machine is connected with the photoelectric commutator of device through optical fiber, is used for the storage to oscillographic setting operation and wave file.
Among the embodiment of the system that obtains the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal provided by the invention, carry out networking through the mode of fiber optic Ethernet between device and the computing machine.
Among the embodiment of the system that obtains the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal provided by the invention; This system comprises a plurality of test points, and the device of each test point is formed a LAN through router and computing machine.
Among the embodiment of the system that obtains the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal provided by the invention; Every oscillograph in the device is assigned fixed IP addresses, and computing machine is distinguished different oscillographs through the IP address.
Microbeam pick-up unit provided by the invention and the Apparatus and system that obtains the very fast transient overvoltage transducing signal can not rise damage equipment because of noble potential only through the GIS earthing of casing (promptly having only one point earth); Compared with prior art, the present invention has solved the influence to the measuring system outside the sensor of strong transient state electromagnetic radiation and earth potential liter effectively, can be so that oscillograph safety, measure and write down transducing signal accurately.
Description of drawings
Fig. 1 illustrates the structural representation of the device that uses oscilloscope measurement VFTO waveform in the prior art;
Fig. 2 a illustrates the assembling synoptic diagram of the device that obtains the very fast transient overvoltage transducing signal that the embodiment of the invention provides; Fig. 2 b illustrates the front elevation of the device that obtains the very fast transient overvoltage transducing signal that the embodiment of the invention provides; Fig. 2 c illustrates the side view of the device that obtains the very fast transient overvoltage transducing signal that the embodiment of the invention provides; Fig. 2 d illustrates the vertical view of the device that obtains the very fast transient overvoltage transducing signal that the embodiment of the invention provides;
Fig. 3 illustrates a kind of structural representation that obtains the device of very fast transient overvoltage transducing signal that the embodiment of the invention provides;
Fig. 4 illustrates the structural representation that obtains another embodiment of very fast transient overvoltage transducing signal device provided by the invention;
Fig. 5 illustrates a kind of structural representation that obtains the system of the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal that the embodiment of the invention provides;
Fig. 6 illustrates the structural representation of another embodiment of the system that obtains the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal provided by the invention.
Embodiment
With reference to the accompanying drawings the present invention is more comprehensively described, exemplary embodiment of the present invention wherein is described.
Fig. 2 a illustrates the assembling synoptic diagram of the device that obtains the very fast transient overvoltage transducing signal that the embodiment of the invention provides.
Shown in Fig. 2 a, typical case of the present invention installs in the schematic diagram, and the device 22 that obtains the very fast transient overvoltage transducing signal is arranged in the metallic shield case, and this metallic shield case is directly installed on gas-insulated metal-enclosed combined electrical apparatus (GIS) 20 and pulls out on the cover plate of mouth.The output signal of the sensor of the measurement VFTO that GIS is built-in (like hand window formula capacitive divider) is connected to the input end that shows metallic shield case 22 ripple devices nearby through short concentric cable.Fig. 2 b illustrates the front elevation of the device that obtains the very fast transient overvoltage transducing signal that the embodiment of the invention provides; Fig. 2 c illustrates the side view of the device that obtains the very fast transient overvoltage transducing signal that the embodiment of the invention provides; Fig. 2 d illustrates the vertical view of the device that obtains the very fast transient overvoltage transducing signal that the embodiment of the invention provides.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, shielded box is directly fixed on the shell of gas-insulated metal-enclosed combined electrical apparatus through bolt.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, have good electric the contact between shielded box and the shell.
The device that obtains the very fast transient overvoltage transducing signal provided by the invention can not rise damage equipment because of noble potential only through the GIS earthing of casing (promptly having only one point earth); Compared with prior art, the present invention has solved the influence to the measuring system outside the sensor of strong transient state electromagnetic radiation and earth potential liter effectively, can be so that oscillograph safety, measure and write down transducing signal accurately.
Fig. 3 illustrates a kind of structural representation that obtains very fast transient overvoltage transducing signal device that the embodiment of the invention provides.
As shown in Figure 3, the device 300 that obtains the very fast transient overvoltage transducing signal comprises: shielded box 301, power supply 302, inverter 304, oscillograph 306 and photoelectric commutator 308; Wherein shielded box 301 is divided into two chambers up and down by metal partion (metp) 303, holds power supply 302, inverter 304 and oscillograph 306, photoelectric commutator 308 respectively.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, power supply 302 adopts the mode of accumulators or accumulator jar for this device power supply to be provided.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, it is the needed power mode of oscillograph that inverter 304 is used for power source conversion.Specifically, inverter (inverter) is a kind of direct current (DC) to be converted into the device of alternating current (AC), for example is transformed into alternating current (being generally 220v/50HZ sine or square wave) to direct current energy (battery, accumulator jar); For emergency power pack, generally be the interchange that is reverse into dc battery jar 220V.Inverter is made up of inverter bridge, steering logic and filtering circuit; Belong to prior art in view of inverter, those skilled in the art can know according to the needs of concrete application and choose suitable inverter; Therefore, the present invention no longer gives unnecessary details it.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, photoelectric commutator is through the light signal of optical fiber receiving remote control, and converts light signal into electric signal in order to realize oscillographic control.For example, the mode through light emitting diode converts received light signal into corresponding electric signal, and based on this electric signal oscillograph is controled.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, the VFTO survey sensor is connected with oscillograph through concentric cable, in order to the VFTO signal that is detected is imported in the oscillograph.For example, oscillograph links to each other with sensor through the concentric cable of a weak point (less than 10cm).
The embodiment that obtains the device of very fast transient overvoltage transducing signal provided by the invention, said device is placed in the metallic shield case, and through bolt on GIS shell (as pulling out velar plate), have good electrical contact between the two; In addition, use metal partion (metp) that the metallic shield case is divided into two chambers, further avoided inverter etc. that oscillographic battery is disturbed, thereby helped obtaining exactly the very fast transient overvoltage transducing signal.
Fig. 4 illustrates the structural representation that obtains another embodiment of very fast transient overvoltage transducing signal device provided by the invention.
As shown in Figure 4, the device 400 that obtains the very fast transient overvoltage transducing signal comprises: shielded box 401, power supply 402, inverter 404, power supply filtrator 405, oscillograph 406 and photoelectric commutator 408.Wherein, Shielded box 401, power supply 402, inverter 404, oscillograph 406 and photoelectric commutator 408 can have respectively with shielded box shown in Figure 3 301, power supply 302, inverter 304, oscillograph 306 and photoelectric commutator 308 and have same or analogous structure; For for purpose of brevity, its technology contents here repeats no more.
As shown in Figure 4, device 400 devices that obtain the very fast transient overvoltage transducing signal also comprise: power supply filtrator 405 is used for the power supply signal of inverter output is filtered.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, power supply filtrator 405 is set in the same chamber of shielded box with inverter 404.For example, after the ac power waveform that said power supply filtrator is exported inverter filtered, the aperture that passes on the metal partion (metp) through cable/wire was connected with oscillograph 406.
Among the embodiment of the device that obtains the very fast transient overvoltage transducing signal provided by the invention, power supply filtrator and inverter are separately positioned in the different chamber of shielded box.
The embodiment that obtains the device of very fast transient overvoltage transducing signal provided by the invention, the output of inverter is received oscillograph through power-supply filter, can avoid inverter to oscillographic space radiation electromagnetic interference (EMI) and Conducted Electromagnetic Interference.
Fig. 5 illustrates a kind of structural representation that obtains the system of the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal that the embodiment of the invention provides.
As shown in Figure 5, the system 500 that obtains the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal comprises: the device and the computing machine 510 that obtain the very fast transient overvoltage transducing signal.Wherein
The device that obtains the very fast transient overvoltage transducing signal can be any one the device that obtains the very fast transient overvoltage transducing signal that is selected from the previous embodiment; This device is described in detail in view of aforementioned, no longer the concrete module in the selected device is done here again and given unnecessary details.
Computing machine 510 is connected with the photoelectric commutator 508 of the device that obtains the very fast transient overvoltage transducing signal through optical fiber, is used for the storage to the setting operation and the wave file of oscillograph 506.
The system implementation example of obtaining the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal provided by the invention is carried out networking through the mode of fiber optic Ethernet between device and the computing machine.
Fig. 6 illustrates the structural representation of another embodiment of the system that obtains the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal provided by the invention.
As shown in Figure 6; The system 600 that obtains the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal comprises a plurality of test points; The device that obtains the very fast transient overvoltage transducing signal of each test point can be any one the device that obtains the very fast transient overvoltage transducing signal that is selected from the previous embodiment; This device is described in detail in view of aforementioned, no longer the concrete module in the selected device is done here again and given unnecessary details.
This device that obtains the very fast transient overvoltage transducing signal is formed a LAN through router and computing machine.Every oscillograph in this device is assigned fixed IP addresses, and computing machine is distinguished different oscillographs through the IP address, and then realizes oscillograph is controlled and stored from the oscillograph reading of data.
With reference to the exemplary description of aforementioned the present invention, those skilled in the art can clearly know the present invention and have the following advantages:
1, an embodiment who obtains very fast transient overvoltage transducing signal Apparatus and system provided by the invention only through the GIS earthing of casing (promptly having only one point earth), can not rise damage equipment because of noble potential; Compared with prior art, the present invention has solved the influence to the measuring system outside the sensor of strong transient state electromagnetic radiation and earth potential liter effectively, can be so that oscillograph safety, measure and write down transducing signal accurately.
2, an embodiment who obtains very fast transient overvoltage transducing signal Apparatus and system provided by the invention, said device is placed in the metallic shield case, and through bolt on GIS shell (as pulling out velar plate), have good electrical contact between the two; In addition, use metal partion (metp) that the metallic shield case is divided into two chambers, further avoided inverter etc. that oscillographic battery is disturbed, thereby helped obtaining exactly the very fast transient overvoltage transducing signal.
3, an embodiment who obtains very fast transient overvoltage transducing signal Apparatus and system provided by the invention, the output of inverter is received oscillograph through power-supply filter, can avoid inverter to oscillographic space radiation electromagnetic interference (EMI) and Conducted Electromagnetic Interference; And then guarantee to obtain more exactly the very fast transient overvoltage transducing signal.
Description of the invention provides for example with for the purpose of describing, and is not the disclosed form that exhaustively perhaps limit the invention to.A lot of modifications and variation are obvious for those of ordinary skill in the art.The functional module of describing among the present invention and the dividing mode of functional module are merely explanation thought of the present invention, and dividing mode and module structure thereof that those skilled in the art can freely change functional module according to the needs of instruction of the present invention and practical application are with the realization identical functions; Selecting and describing embodiment is for better explanation principle of the present invention and practical application, thereby and makes those of ordinary skill in the art can understand the various embodiment that have various modifications that the present invention's design is suitable for special-purpose.
Claims (8)
1. a device that obtains the very fast transient overvoltage transducing signal is characterized in that, said device comprises: shielded box, power supply, inverter, oscillograph and photoelectric commutator; Wherein
Said shielded box is divided into two chambers up and down by metal partion (metp), and wherein lower chambers is held power supply, inverter, and upper chamber holds oscillograph, photoelectric commutator;
Shielded box is directly fixed on through bolt on the shell of the gas-insulated metal-enclosed combined electrical apparatus of extra-high voltage, has electric the contact between shielded box and the said shell, and only through the said earthing of casing;
Inverter is the power mode that oscillograph needs with power source conversion;
Photoelectric commutator passes through the light signal of optical fiber receiving remote control, and converts said light signal into electric signal in order to realize said oscillographic control;
Oscillograph is through the very fast transient overvoltage transducing signal of concentric cable reception very fast transient overvoltage sensor, and wherein the very fast transient overvoltage sensor is positioned at the gas-insulated metal-enclosed combined electrical apparatus of extra-high voltage.
2. device according to claim 1 is characterized in that, said device also comprises: the power supply filtrator is used for the power supply signal of said inverter output is filtered.
3. device according to claim 2 is characterized in that, said power supply filtrator and said inverter are set in the same chamber of said shielded box.
4. device according to claim 2 is characterized in that, said power supply filtrator and said inverter are separately positioned in the different chamber of said shielded box.
5. system that obtains the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal is characterized in that said system comprises:
Be selected from any described device that obtains the very fast transient overvoltage transducing signal among the claim 1-4;
Computing machine is connected with the photoelectric commutator of said device through optical fiber, is used for the storage to oscillographic setting operation and wave file.
6. system according to claim 5 is characterized in that, the mode through fiber optic Ethernet between said device and the said computing machine is carried out networking.
7. system according to claim 5 is characterized in that said system comprises a plurality of test points, and the said device of each test point is formed a LAN through router and said computing machine.
8. system according to claim 7 is characterized in that, every oscillograph in the said device is assigned fixed IP addresses, and said computing machine is distinguished different oscillographs through the IP address.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105197959A CN102072982B (en) | 2010-10-26 | 2010-10-26 | Device and system for acquiring very fast transient overvoltage sensing signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105197959A CN102072982B (en) | 2010-10-26 | 2010-10-26 | Device and system for acquiring very fast transient overvoltage sensing signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102072982A CN102072982A (en) | 2011-05-25 |
| CN102072982B true CN102072982B (en) | 2012-11-14 |
Family
ID=44031599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105197959A Expired - Fee Related CN102072982B (en) | 2010-10-26 | 2010-10-26 | Device and system for acquiring very fast transient overvoltage sensing signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102072982B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590678B (en) * | 2012-02-27 | 2014-10-08 | 华北电力大学 | Electromagnetic disturbance measurement system for secondary system of alternating current power transmission line series compensation device platform |
| CN102608401A (en) * | 2012-03-06 | 2012-07-25 | 华北电力大学 | Measurement system and measurement method for disturbance voltage and disturbance current of GIS (gas insulated switchgear) secondary system |
| CN102608388B (en) * | 2012-03-13 | 2014-08-27 | 中国电力科学研究院 | VFTO (very fast transient overvoltage) measurement method and system |
| CN102707131B (en) * | 2012-05-18 | 2014-07-09 | 华北电力大学 | Very fast transient overvoltage (VFTO) automatic measuring system for high-sensitivity medium window |
| CN103091541B (en) * | 2012-12-14 | 2016-01-20 | 中国电力科学研究院 | A kind of intelligent substation secondary transient voltage measurement mechanism and measuring method |
| CN103105521A (en) * | 2013-01-29 | 2013-05-15 | 华北电力大学 | Very fast transient overvoltage (VFTO) remote measurement system and method |
| CN103837773A (en) * | 2014-03-14 | 2014-06-04 | 云南电力试验研究院（集团）有限公司电力研究院 | Oscilloscope near-end measuring system for optical fiber transmission control signals |
| CN104049134A (en) * | 2014-06-24 | 2014-09-17 | 国家电网公司 | Optical VFTO measurement system based on Pockels effect |
| CN104977455B (en) * | 2015-06-27 | 2017-10-24 | 云南电网有限责任公司电力科学研究院 | A kind of photoeletric measuring system for being applied to measurement VFTO |
| CN106443144A (en) * | 2015-08-11 | 2017-02-22 | 中国电力科学研究院 | Distributed transient overvoltage monitoring system for EHV (extra-high voltage) GIS |
| CN107817377A (en) * | 2017-11-17 | 2018-03-20 | 国网江苏省电力有限公司检修分公司 | It is a kind of to be set effective the hidden danger traveling wave detector device for suppressing interference outside based on sensor |
| CN108645603B (en) * | 2018-04-17 | 2020-07-10 | 国网湖南省电力有限公司 | Circuit breaker simulated defect pressure storage medium transient pressure detection device and application method thereof |
| CN111487460A (en) * | 2020-06-04 | 2020-08-04 | 云南电网有限责任公司电力科学研究院 | Fiber transmission VFTO monitoring system and method for GIS transformer substation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553207A (en) * | 2003-12-18 | 2004-12-08 | 西安交通大学 | High-frequency wide-band local discharging on-line monitoring method in gas insulative converting station |
| CN2748927Y (en) * | 2004-08-06 | 2005-12-28 | 华北电力大学（北京） | Local discharging ultrahigh frequency online fault positioning device for gas insulation transformer station |
| CN201281725Y (en) * | 2008-10-27 | 2009-07-29 | 陕西电力科学研究院 | Fiber-optical type voltage measurement device |
| CN201464546U (en) * | 2009-07-14 | 2010-05-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Device for intelligently monitoring VFTO inside GIS |
-
2010
- 2010-10-26 CN CN2010105197959A patent/CN102072982B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1553207A (en) * | 2003-12-18 | 2004-12-08 | 西安交通大学 | High-frequency wide-band local discharging on-line monitoring method in gas insulative converting station |
| CN2748927Y (en) * | 2004-08-06 | 2005-12-28 | 华北电力大学（北京） | Local discharging ultrahigh frequency online fault positioning device for gas insulation transformer station |
| CN201281725Y (en) * | 2008-10-27 | 2009-07-29 | 陕西电力科学研究院 | Fiber-optical type voltage measurement device |
| CN201464546U (en) * | 2009-07-14 | 2010-05-12 | 国网电力科学研究院武汉南瑞有限责任公司 | Device for intelligently monitoring VFTO inside GIS |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102072982A (en) | 2011-05-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102072982B (en) | Device and system for acquiring very fast transient overvoltage sensing signal | |
| CN103913679B (en) | High-tension switch cabinet partial discharge monitoring system | |
| CN102590678B (en) | Electromagnetic disturbance measurement system for secondary system of alternating current power transmission line series compensation device platform | |
| CN102914731B (en) | Device for detecting point discharge in transformer oil under impulse voltage based on dual electrodes | |
| CN103487780A (en) | System and method for testing GIS electronic transformer | |
| CN103675623A (en) | Method and system for detecting partial discharging of GIS under impulse voltage | |
| CN103558525A (en) | Method for detection of partial discharge of switch cabinet | |
| CN104865468A (en) | Device and method for measuring shielding effectiveness of electromagnetic pulse of thunder and lightning | |
| CN101504432A (en) | Transient electromagnetic field measuring method for transforming plant | |
| CN103558524A (en) | Detection device for partial discharge of switch cabinet | |
| CN103558523A (en) | Detection device for partial discharge of switch cabinet | |
| CN106872866A (en) | The equal properties of flow test system of lightning arrester connected in parallel | |
| ES2365779B1 (en) | SYSTEM OF MEASUREMENT OF PARTIAL DOWNLOADS ON POWER LINES. | |
| CN202421428U (en) | Hot-line detection equipment for partial discharge of transformer substation | |
| CN204044215U (en) | A kind of many mouthfuls of high-frequency pulse current transformers putting detection and location for office | |
| CN203630279U (en) | Detection device for partial discharge of switch cabinet | |
| CN203572868U (en) | System used for measuring interference voltage of intelligent assembly of transformer station GIS | |
| CN203405561U (en) | Direct current power source grounding fault searching device | |
| JP2014119384A (en) | Non-contact voltage measuring probe | |
| CN105046018A (en) | Non-contact line over-voltage monitoring apparatus and monitoring method based on finite element analysis | |
| CN102721909A (en) | Ultrahigh frequency radiation characteristic simulation method and system for cable body | |
| CN203396835U (en) | Monitoring and alarming system for grounding current of single-core cable | |
| Liu et al. | Measuring of very fast transient overvoltage and very fast transient current generated by disconnector operating | |
| CN103063907B (en) | A kind of electronic type voltage transformer signal collection system | |
| CN210465583U (en) | Sensor for submarine cable fault monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20141026 |
|
| EXPY | Termination of patent right or utility model |