CN101865939A - Generation device for very fast transient overvoltage - Google Patents

Generation device for very fast transient overvoltage Download PDF

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Publication number
CN101865939A
CN101865939A CN 201010204658 CN201010204658A CN101865939A CN 101865939 A CN101865939 A CN 101865939A CN 201010204658 CN201010204658 CN 201010204658 CN 201010204658 A CN201010204658 A CN 201010204658A CN 101865939 A CN101865939 A CN 101865939A
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CN
China
Prior art keywords
busbar
steepness gap
steepness
bus
electrode
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CN 201010204658
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Chinese (zh)
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CN101865939B (en
Inventor
张翠霞
陈维江
殷禹
时卫东
张乔根
李志兵
刘石
张璐
Original Assignee
中国电力科学研究院
国家电网公司
西安交通大学
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Priority to CN2010102046586A priority Critical patent/CN101865939B/en
Publication of CN101865939A publication Critical patent/CN101865939A/en
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Publication of CN101865939B publication Critical patent/CN101865939B/en

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing 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
    • G01R31/14Circuits therefor, e.g. for generating test voltages, sensing circuits

Abstract

The invention discloses a generation device for very fast transient overvoltage (VFTO), which is characterized in that the generation device comprises an impulse voltage generator, an overhead line, a high-voltage casing, a shell, a first busbar section, a first wave modulating resistor and a sharpening clearance, wherein the impulse voltage generator is connected with one end of the first busbar section sequentially through the overhead line and the high-voltage casing; the other end of the first busbar section is connected with the first end of the sharpening clearance through the first wave modeling resistor; and the second end of the sharpening clearance is an output end and is used for outputting VFTO. The generation device for very fast transient overvoltage can reach good sharpening effect.

Description

A kind of generating apparatus of fast transient overvoltage
Technical field
The present invention relates to fast transient overvoltage (VFTO) generation technique, relate in particular to the generating apparatus of a kind of VFTO.
Background technology
In the prior art, when carrying out the measurement Research of equipment etc., need VFTO often, for example, when GIS (gas insulated combined electric appliance equipment) insulator is carried out the research of GIS insulation characterisitic, promptly need to use VFTO as boosting voltage.
In the prior art, generally produce VFTO by analog form, concrete, by common impulse voltage generator output surge voltage, by the steepness gap described surge voltage is carried out steepness then, obtain required VFTO.
But, the VFTO steepness weak effect that this method produces.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is, a kind of generating apparatus of fast transient overvoltage is provided, and can reach better steepness effect.
For this reason, the embodiment of the invention adopts following technical scheme:
The embodiment of the invention provides a kind of generating apparatus of fast transient overvoltage, comprising: impulse voltage generator, pole line, bushing, shell, first bus section, busbar section, first wave regulating resistor and steepness gap; Wherein,
Impulse voltage generator is connected with an end of described first bus section, busbar section by pole line and bushing successively; The other end of first bus section, busbar section is connected with first end in steepness gap by first wave regulating resistor; Second end in steepness gap is an output terminal, is used to export VFTO.
Wherein, also comprise:
Linkage unit is used for connecting respectively the output terminal and the equipment under test in steepness gap, and the VFTO of steepness gap output is transferred to equipment under test.
Described linkage unit comprises: second wave regulating resistor, second bus section, busbar section and test terminal; Wherein,
One end of described second wave regulating resistor connects the output terminal in described steepness gap; The other end of second wave regulating resistor connects the test terminal by second bus section, busbar section.
Also comprise: be connected with disc insulator respectively on first end in described first bus section, busbar section, steepness gap and second end and second bus section, busbar section; Adjacent disc insulator cooperatively interacts, and the confined space that described shell is formed is divided into five separate confined spaces.
Be added with SF6 gas in the confined space of described steepness gap correspondence; The confined space of described steepness gap correspondence is: the corresponding confined spaces that form of two disc insulators that are connected on first end in steepness gap and second end.
Also comprise: first voltage measurement unit, second voltage measurement unit and control adjustment unit, wherein,
Described first voltage measurement unit and second voltage measurement unit are arranged at respectively in the adjacent confined space of the confined space corresponding with described steepness gap; Described voltage measurement unit is respectively applied for: detect the voltage waveform in the corresponding confined space;
The control adjustment unit, be used for the voltage waveform that the voltage waveform that comparison first voltage measurement unit measures and second voltage measurement unit measure, according to the pressure of SF6 gas in the confined space of comparative result adjustment steepness gap correspondence, so that regulate the voltage breakdown in steepness gap and puncture the moment.
Electrode bar and electrode bar regulon are set in first sub-electrode in the electrode in described steepness gap;
Described electrode bar partly is positioned at the outside of first sub-electrode, and part is positioned at the inside of first sub-electrode;
Described electrode bar regulon is used for: regulate the length that described electrode bar is positioned at the first sub-electrode outside.
Technique effect for technique scheme is analyzed as follows:
Between bushing and steepness gap, increase by first bus section, busbar section and first wave regulating resistor, first bus section, busbar section is temporarily stored the energy of VFTO wave head part when steepness, during the steepness gap breakdown, the energy of storage is discharged, first wave regulating resistor is regulated wave head and the wave rear time of VFTO, thereby makes the VFTO of steepness gap output terminal output have better steepness effect with respect to the VFTO that prior art produces.
Description of drawings
Fig. 1 is an embodiment of the invention VFTO generating apparatus structural representation;
Fig. 2 is the electrode structure synoptic diagram in the embodiment of the invention steepness gap.
Embodiment
Below, be described with reference to the accompanying drawings the realization of embodiment of the invention VFTO generating apparatus.
Fig. 1 is an embodiment of the invention VFTO generating apparatus structural representation, and as shown in Figure 1, this device comprises: impulse voltage generator 11, pole line 12, bushing 13, first bus section, busbar section 14, first wave regulating resistor 15, steepness gap 16; Wherein,
Impulse voltage generator 11 is connected an end of first bus section, busbar section 14 successively with bushing 13 by pole line 12; The other end of first bus section, busbar section 14 connects an end of first wave regulating resistor 15; The other end of first wave regulating resistor 15 connects first end in steepness gap 16; Second end in steepness gap 16 is an output terminal, output VFTO.
In addition, described first bus section, busbar section 14, wave regulating resistor 15 and steepness gap 16 all are positioned at shell 10 inside of VFTO device, and described shell 10 is a confined space.
In actual applications, the output terminal in steepness gap 16 generally can connect equipment under test by linkage unit, thereby realizes the detection to equipment under test, for example the GIS insulator is carried out GIS insulation characterisitic detection etc.Described linkage unit is positioned at the inside of described shell 10 equally.
Concrete, in actual applications, described linkage unit can use structure as shown in Figure 1 to realize that as shown in Figure 1, this linkage unit comprises: second wave regulating resistor 171, second bus section, busbar section 172 and test terminal 173; Wherein, an end of described second wave regulating resistor 171 connects second end (being output terminal) in described steepness gap 16, and the other end connects an end of second bus section, busbar section 172, and the other end of second bus section, busbar section 172 connects test terminal 173.Described test terminal 173 can connect corresponding equipment under test, so that equipment under test is carried out corresponding detection.
The realization principle of VFTO generating apparatus shown in Figure 1 is as follows:
Impulse voltage generator 11 produces surge voltage, and this surge voltage transfers to first bus section, busbar section 14 through pole line 12 and bushing 13, and this first bus section, busbar section 14 is used to carry out intermediate energy storage, and the energy with surge voltage wave head part when steepness temporarily stores; When steepness gap 16 punctured, first bus section, busbar section 14 discharged energy stored, thereby produced VFTO at the output terminal in steepness gap 16.
And then, if described VFTO generating apparatus has connected equipment under test, then the VFTO of Chan Shenging successively by second wave regulating resistor 171, second bus section, busbar section 172 is transmitted to test the equipment under test that terminal is connected, and carries out the respective detection of equipment under test.
Above VFTO generating apparatus, between bushing and steepness gap, increase by first bus section, busbar section and first wave regulating resistor, the energy of VFTO wave head part is temporarily stored when the steepness by first bus section, busbar section, during the steepness gap breakdown, the energy of storage is discharged, first wave regulating resistor is regulated wave head and the wave rear time of VFTO, thereby makes the VFTO of steepness gap output terminal output obtain with respect to the better steepness effect of prior art.
Preferably, be connected with disc insulator 18 respectively on first end in described first bus section, busbar section 14, steepness gap 16 and second end and second bus section, busbar section 172; Adjacent disc insulator cooperatively interacts, and the confined space that described shell 10 is formed is divided into five separate confined spaces.
Can add SF6 gas in the confined space of described steepness gap correspondence; The confined space of described steepness gap correspondence is: the corresponding confined space that forms of two disc insulators that are provided with on the steepness gap.
Be respectively arranged with first voltage measurement unit 201 and second voltage measurement unit 202 in the adjacent confined space of the confined space corresponding with described steepness gap; Described voltage measurement unit is respectively applied for: detect the voltage waveform in the corresponding confined space;
Described VFTO generating apparatus further comprises: control adjustment unit (not shown), be used for the voltage waveform that the voltage waveform that comparison first voltage measurement unit 201 measures and second voltage measurement unit 202 measure, pressure according to SF6 gas in the confined space of comparative result adjustment steepness gap correspondence, so that regulate the voltage breakdown in steepness gap and puncture the moment, thereby guarantee the generation efficient of VFTO and suitable waveform, needed different tests voltage when also having satisfied simultaneously the different test product of research.
Wherein, when described disc insulator was connected with bus section, busbar section or steepness gap etc., the outside can adopt flange to connect, and inside can be electrically connected by inserting son, and concrete connected mode repeats no more here.
Preferably, as shown in Figure 2, this device steepness gap can adopt the hemispherical head gap to carry out steepness, and, as shown in Figure 2, in the steepness gap, increase electrode bar 211 in first sub-electrode 21 of electrode, the structure of described electrode bar is identical with described first sub-electrode, difference only is that described electrode bar 211 parts are positioned at the outside of first sub-electrode 21, and part is positioned at the inside of first sub-electrode 21.And, electrode bar regulon (not shown) is set in the steepness gap, be used to regulate the length that electrode bar 211 is positioned at the first electrode outside, and then shake appears in limit switch when action VFTO, reduced the dispersiveness of steepness gap breakdown, made that the VFTO waveform of steepness gap output is more stable.
In addition, the described VFTO generating apparatus of the embodiment of the invention can also be used to produce lightning wave, at this moment, the adjusting electrode bar that utilizes switch electrode one side to increase, realize the short circuit of electrode in the steepness gap by pneumatic or remote control, and resistance can remain unchanged substantially before and after the steepness gap, and the wave front resistance that only changes in the impulse voltage generator gets final product.
And the described VFTO generating apparatus of the embodiment of the invention can carry out different tests, and as long as for example test in 1000kVGIS insulator, 500kVGIS insulator, SF6 gap etc. is the wave impedance of corresponding this device of change.
For the explanation that gives an actual example of the VFTO generating apparatus of the embodiment of the invention:
In actual applications, VFTO generating apparatus shown in Figure 1 can use: the structure in the long 2.5MV bushing+impedance of 6MV opening stroke voltage generator+pole line+6m 91 Ω GIS bus section, busbar section+first wave regulating resistor+steepness gaps realizes, at this moment, the voltage magnitude of the VFTO that is produced can reach 2.5MV.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (7)

1. the generating apparatus of a fast transient overvoltage is characterized in that, comprising: impulse voltage generator, pole line, bushing, shell, first bus section, busbar section, first wave regulating resistor and steepness gap; Wherein,
Impulse voltage generator is connected with an end of described first bus section, busbar section by pole line and bushing successively; The other end of first bus section, busbar section is connected with first end in steepness gap by first wave regulating resistor; Second end in steepness gap is an output terminal, is used to export fast transient overvoltage VFTO.
2. device according to claim 1 is characterized in that, also comprises:
Linkage unit is used for connecting respectively the output terminal and the equipment under test in steepness gap, and the VFTO of steepness gap output is transferred to equipment under test.
3. device according to claim 2 is characterized in that, described linkage unit comprises: second wave regulating resistor, second bus section, busbar section and test terminal; Wherein,
One end of described second wave regulating resistor connects the output terminal in described steepness gap; The other end of second wave regulating resistor connects the test terminal by second bus section, busbar section.
4. device according to claim 3 is characterized in that, also comprises:
Be connected with disc insulator respectively on first end in described first bus section, busbar section, steepness gap and second end and second bus section, busbar section; Adjacent disc insulator cooperatively interacts, and the confined space that described shell is formed is divided into five separate confined spaces.
5. device according to claim 4 is characterized in that, is added with SF6 gas in the confined space of described steepness gap correspondence; The confined space of described steepness gap correspondence is: the corresponding confined spaces that form of two disc insulators that are connected on first end in steepness gap and second end.
6. device according to claim 5 is characterized in that, also comprises: first voltage measurement unit, second voltage measurement unit and control adjustment unit, wherein,
Described first voltage measurement unit and second voltage measurement unit are arranged at respectively in the adjacent confined space of the confined space corresponding with described steepness gap; Described voltage measurement unit is respectively applied for: detect the voltage waveform in the corresponding confined space;
The control adjustment unit, be used for the voltage waveform that the voltage waveform that comparison first voltage measurement unit measures and second voltage measurement unit measure, according to the pressure of SF6 gas in the confined space of comparative result adjustment steepness gap correspondence, so that regulate the voltage breakdown in steepness gap and puncture the moment.
7. according to each described device of claim 1 to 6, it is characterized in that, electrode bar and electrode bar regulon are set in first sub-electrode in the electrode in described steepness gap;
Described electrode bar partly is positioned at the outside of first sub-electrode, and part is positioned at the inside of first sub-electrode;
Described electrode bar regulon is used for: regulate the length that described electrode bar is positioned at the first sub-electrode outside.
CN2010102046586A 2010-06-17 2010-06-17 Generation device for very fast transient overvoltage CN101865939B (en)

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CN102005963A (en) * 2010-10-26 2011-04-06 西安交通大学 Sharpening gap device
CN102158116A (en) * 2011-01-20 2011-08-17 西安交通大学 Impulse voltage generator for triggering multi-channel discharge gas spark switch
WO2011157048A1 (en) * 2010-06-17 2011-12-22 中国电力科学研究院 Generation device for very fast transient overvoltage
CN102901917A (en) * 2012-10-22 2013-01-30 云南电力试验研究院(集团)有限公司电力研究院 Field generating device of steep pulses
CN102928470A (en) * 2012-10-16 2013-02-13 云南电力试验研究院(集团)有限公司电力研究院 Mobile type cyclic VFTO (Very Fast Transient Overvoltage) insulating oil testing system
CN102998556A (en) * 2012-10-29 2013-03-27 中国电力科学研究院 Device and method for super-fast transient overvoltage simulation of metal oxide voltage limiter
CN103235164A (en) * 2013-04-25 2013-08-07 国家电网公司 Steep front shock and lightning shock voltage interactive generation device
CN103401536A (en) * 2013-07-03 2013-11-20 国家电网公司 Nanosecond pulse shaping and leading edge sharpening device
CN103941166A (en) * 2014-04-23 2014-07-23 沈阳工业大学 High-temperature gas breakdown characteristic detection device and method under VFTO condition
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
CN105759186B (en) * 2016-03-31 2018-10-19 西安交通大学 A kind of scenes GIS progressive wave test method and system
CN109061419A (en) * 2018-08-27 2018-12-21 云南电网有限责任公司电力科学研究院 Compound VFTO acts on lower insulating oil dielectric(al) test system and method
CN109270415A (en) * 2018-08-27 2019-01-25 云南电网有限责任公司电力科学研究院 The VFTO method of inspection and system of surface of composite insulator pulse accounting rate
CN110346711A (en) * 2019-07-09 2019-10-18 国网陕西省电力公司电力科学研究院 A kind of disconnecting switch dynamic discharge process simulation device and its experimental rig and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102931954A (en) * 2012-10-22 2013-02-13 云南电力试验研究院(集团)有限公司电力研究院 Steep front pulse peaking and front reshaping device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060051A1 (en) * 1981-02-27 1982-09-15 Kabushiki Kaisha Toshiba Electrical switchgear apparatus
CN2687923Y (en) * 2004-02-12 2005-03-23 中国电力科学研究院 Overhead circuit parallel gap lightning protection device
CN1674186A (en) * 2005-03-28 2005-09-28 西安杉瑞机电科技有限责任公司 Method for limiting internal fast transient overvoltage of gas insulating switch
CN101001005A (en) * 2007-01-05 2007-07-18 西安电力机械制造公司 Gas insulation switch device
CN101446617A (en) * 2008-05-27 2009-06-03 中国电力科学研究院 Test apparatus of DC gas insulated metal enclosed transmission line (GIL)
CN101718824A (en) * 2009-12-07 2010-06-02 中国电力科学研究院 Experiment device used for extra-high voltage alternating current-direct current gas insulated metal enclosed transmission line
CN102005963A (en) * 2010-10-26 2011-04-06 西安交通大学 Sharpening gap device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04199604A (en) * 1990-11-29 1992-07-20 Tohoku Oki Denki Kk Solenoid
CN1136596C (en) * 2000-01-25 2004-01-28 清华大学 Very fast transient overvoltage suppressing method for completely enclosed combined electrical appliance
CN101799488B (en) * 2010-02-23 2011-12-21 清华大学 Device and method for generating nominal voltage
CN101865939B (en) * 2010-06-17 2012-04-11 中国电力科学研究院 Generation device for very fast transient overvoltage

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0060051A1 (en) * 1981-02-27 1982-09-15 Kabushiki Kaisha Toshiba Electrical switchgear apparatus
CN2687923Y (en) * 2004-02-12 2005-03-23 中国电力科学研究院 Overhead circuit parallel gap lightning protection device
CN1674186A (en) * 2005-03-28 2005-09-28 西安杉瑞机电科技有限责任公司 Method for limiting internal fast transient overvoltage of gas insulating switch
CN101001005A (en) * 2007-01-05 2007-07-18 西安电力机械制造公司 Gas insulation switch device
CN101446617A (en) * 2008-05-27 2009-06-03 中国电力科学研究院 Test apparatus of DC gas insulated metal enclosed transmission line (GIL)
CN101718824A (en) * 2009-12-07 2010-06-02 中国电力科学研究院 Experiment device used for extra-high voltage alternating current-direct current gas insulated metal enclosed transmission line
CN102005963A (en) * 2010-10-26 2011-04-06 西安交通大学 Sharpening gap device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《中国优秀硕士学位论文全文数据库》 20100515 马亮 GIS中VFTO的测量研究 1-7 , 第5期 2 *

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WO2011157048A1 (en) * 2010-06-17 2011-12-22 中国电力科学研究院 Generation device for very fast transient overvoltage
CN102005963B (en) * 2010-10-26 2013-03-13 西安交通大学 Sharpening gap device
CN102005963A (en) * 2010-10-26 2011-04-06 西安交通大学 Sharpening gap device
CN102158116B (en) * 2011-01-20 2013-02-06 西安交通大学 Impulse voltage generator for triggering multi-channel discharge gas spark switch
CN102158116A (en) * 2011-01-20 2011-08-17 西安交通大学 Impulse voltage generator for triggering multi-channel discharge gas spark switch
CN102928470A (en) * 2012-10-16 2013-02-13 云南电力试验研究院(集团)有限公司电力研究院 Mobile type cyclic VFTO (Very Fast Transient Overvoltage) insulating oil testing system
CN102928470B (en) * 2012-10-16 2014-12-31 云南电力试验研究院(集团)有限公司电力研究院 Mobile type cyclic VFTO (Very Fast Transient Overvoltage) insulating oil testing system
CN102901917A (en) * 2012-10-22 2013-01-30 云南电力试验研究院(集团)有限公司电力研究院 Field generating device of steep pulses
CN102901917B (en) * 2012-10-22 2015-04-01 云南电力试验研究院(集团)有限公司电力研究院 Field generating device of steep pulses
CN102998556B (en) * 2012-10-29 2016-02-24 中国电力科学研究院 The very fast transient overvoltage simulator of metal oxide pressure-limiting device and method thereof
CN102998556A (en) * 2012-10-29 2013-03-27 中国电力科学研究院 Device and method for super-fast transient overvoltage simulation of metal oxide voltage limiter
CN103235164A (en) * 2013-04-25 2013-08-07 国家电网公司 Steep front shock and lightning shock voltage interactive generation device
CN103235164B (en) * 2013-04-25 2016-02-17 国家电网公司 Steep-front impacts and lightning impulse voltage interactive generation device
CN103401536B (en) * 2013-07-03 2016-02-10 国家电网公司 Nanosecond pulse shaping and forward position sharpening device
CN103401536A (en) * 2013-07-03 2013-11-20 国家电网公司 Nanosecond pulse shaping and leading edge sharpening device
CN103941166A (en) * 2014-04-23 2014-07-23 沈阳工业大学 High-temperature gas breakdown characteristic detection device and method under VFTO condition
CN103941166B (en) * 2014-04-23 2016-07-06 沈阳工业大学 High-temperature gas breakdown characteristics detecting device and method under a kind of VFTO
CN105759186B (en) * 2016-03-31 2018-10-19 西安交通大学 A kind of scenes GIS progressive wave test method and system
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
CN109061419A (en) * 2018-08-27 2018-12-21 云南电网有限责任公司电力科学研究院 Compound VFTO acts on lower insulating oil dielectric(al) test system and method
CN109270415A (en) * 2018-08-27 2019-01-25 云南电网有限责任公司电力科学研究院 The VFTO method of inspection and system of surface of composite insulator pulse accounting rate
CN109061419B (en) * 2018-08-27 2020-11-20 云南电网有限责任公司电力科学研究院 Insulating oil insulation strength test system and method under composite VFTO effect
CN110346711A (en) * 2019-07-09 2019-10-18 国网陕西省电力公司电力科学研究院 A kind of disconnecting switch dynamic discharge process simulation device and its experimental rig and method
CN110346711B (en) * 2019-07-09 2021-04-20 国网陕西省电力公司电力科学研究院 Dynamic discharge process simulation device for isolating switch and test device and method thereof

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