CN102072982A - 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
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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) fields 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 (as 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 current potentials, 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.When under this environment, using oscillograph, need promptly make oscillograph be operated in the safe environment, and have strong antijamming capability for the accurate condition of creating necessity of oscillographic safety and measurement result.
At present, measure among the GIS VFTO more accurately method be to adopt built-in sensors (as 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 power to oscillograph, the signal of sensor that is installed in above the GIS is measured by one section long concentric cable introducing oscillograph.In measuring process, whenever carry out a test, all need manually 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 a large amount of tests.Like this, existing method is complex operation but also be subjected to 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 by the light signal of optical fiber receiving remote control, and light signal is converted to 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 by concentric cable, in the VFTO signal input oscillograph that will be detected.
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 by 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 by 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 by 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 (Local Area Network) by 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 by 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 by 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 described more fully, 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 (as hand window formula capacitive divider) is connected to the input end that shows metallic shield case 22 ripple devices nearby by 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 by 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 by 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 to provide power supply for this device.
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 direct current energy (battery, accumulator jar) is transformed into alternating current (being generally 220v/50HZ sine or square wave); For emergency power pack, generally be the interchange that dc battery jar is reverse into 220V.Inverter is made up of inverter bridge, steering logic and filtering circuit; In view of inverter belongs to prior art, 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 by the light signal of optical fiber receiving remote control, and light signal is converted to electric signal in order to realize oscillographic control.For example, the mode by light emitting diode is converted to corresponding electric signal with received light signal, and based on this electric signal oscillograph is operated 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 by concentric cable, in the VFTO signal input oscillograph that will be detected.For example, oscillograph links to each other with sensor by 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, described device is placed in the metallic shield case, and by 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, repeat no more its technology contents here.
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 described power supply filtrator is exported inverter filtered, the aperture that passes on the metal partion (metp) by 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 by optical fiber, is used for the storage to the setting operation and the wave file of oscillograph 506.
The embodiment that obtains the system of the gas-insulated metal-enclosed combined electrical apparatus very fast transient overvoltage of extra-high voltage transducing signal provided by the invention carries out networking by 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 (Local Area Network) by router and computing machine.Every oscillograph in this device is assigned fixed IP addresses, and computing machine is distinguished different oscillographs by 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 by 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, described device is placed in the metallic shield case, and by 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 exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.The functional module of describing among the present invention and the dividing mode of functional module only are explanation thought of the present invention, and those skilled in the art can freely change the dividing mode of functional module and module structure thereof with the realization identical functions according to the needs of instruction of the present invention and practical application; 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 (13)
1. a device that obtains the very fast transient overvoltage transducing signal is characterized in that, described device comprises: shielded box, power supply, inverter, oscillograph and photoelectric commutator; Wherein
Described shielded box is divided into two chambers up and down by metal partion (metp), holds described power supply, inverter and described oscillograph, photoelectric commutator respectively.
2. device according to claim 1 is characterized in that, it is the needed power mode of described oscillograph that described inverter is used for described power source conversion.
3. device according to claim 1 is characterized in that, described photoelectric commutator passes through the light signal of optical fiber receiving remote control, and described light signal is converted to electric signal in order to realize described oscillographic control.
4. device according to claim 1 is characterized in that, the VFTO survey sensor is connected with described oscillograph by concentric cable, in order to the VFTO signal that is detected is imported in the described oscillograph.
5. device according to claim 1 is characterized in that, described device also comprises: the power supply filtrator is used for the power supply signal of described inverter output is filtered.
6. device according to claim 5 is characterized in that, described power supply filtrator and described inverter are set in the same chamber of described shielded box.
7. device according to claim 5 is characterized in that, described power supply filtrator and described inverter are separately positioned in the different chamber of described shielded box.
8. according to any described device among the claim 1-7, it is characterized in that described shielded box is directly fixed on the shell of gas-insulated metal-enclosed combined electrical apparatus by bolt.
9. have electric the contact between the device according to claim 8, described shielded box and described shell.
10. 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 described system comprises:
Be selected from any described device that obtains the very fast transient overvoltage transducing signal among the claim 1-9;
Computing machine is connected with the photoelectric commutator of described device by optical fiber, is used for the storage to oscillographic setting operation and wave file.
11. system according to claim 10 is characterized in that, the mode by fiber optic Ethernet between described device and the described computing machine is carried out networking.
12. system according to claim 10 is characterized in that, described system comprises a plurality of test points, and the described device of each test point is formed a LAN (Local Area Network) by router and described computing machine.
13. system according to claim 12 is characterized in that, every oscillograph in the described device is assigned fixed IP addresses, and described computing machine is distinguished different oscillographs by the IP address.
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CN102590678A (en) * | 2012-02-27 | 2012-07-18 | 华北电力大学 | Electromagnetic disturbance measurement system for secondary system of alternating current power transmission line series compensation device platform |
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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 |
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CN102590678A (en) * | 2012-02-27 | 2012-07-18 | 华北电力大学 | Electromagnetic disturbance measurement system for secondary system of alternating current power transmission line series compensation device platform |
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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 |
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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 |
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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 |
CN108645603A (en) * | 2018-04-17 | 2018-10-12 | 国网湖南省电力有限公司 | Breaker simulated defect storage pressure medium transient state pressure-detecting device and its application process |
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