CN103837804A - Mobile gas insulation non-partial-discharge voltage holding test system - Google Patents
Mobile gas insulation non-partial-discharge voltage holding test system Download PDFInfo
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- CN103837804A CN103837804A CN201410068620.9A CN201410068620A CN103837804A CN 103837804 A CN103837804 A CN 103837804A CN 201410068620 A CN201410068620 A CN 201410068620A CN 103837804 A CN103837804 A CN 103837804A
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Abstract
The invention discloses a mobile gas insulation non-partial-discharge voltage holding test system. The voltage holding test system comprises an SF6 gas insulation power frequency testing transformer, a voltage regulator, a compensation reactor, an inflation high-voltage bushing, an inflatable capacitive voltage divider, a switching impulse generation unit, a digital voltage and current signal collection unit and an optical fiber communication unit. The compensation reactor is connected with the voltage regulator. The voltage regulator is connected with the SF6 gas insulation power frequency testing transformer. The inflation high-voltage bushing is in butt joint with the SF6 gas insulation power frequency testing transformer and the digital voltage and current signal collection unit. The inflatable capacitive voltage divider is in butt joint with the SF6 gas insulation power frequency testing transformer. The switching impulse generation unit is connected with the SF6 gas insulation power frequency testing transformer and the optical fiber communication unit respectively. Through the method, the mobile gas insulation non-partial-discharge voltage holding test system can meet test requirements of GIS equipment of an indoor underground substation and meet test requirements of GIS equipment of an indoor ground open-type substation.
Description
Technical field
The present invention relates to high voltage test field, particularly relate to a kind of mobile gas insulation and put withstand voltage test system without office.
Background technology
Portable mobile gas insulation is put withstand voltage test system without office and is belonged to High-Voltage Test Technology field.Along with the fast development of electric system, Development of China's Urbanization is accelerated day by day, and electric power skyrockets with ground price.Traditional open transformer station is cannot meet growth requirement.Along with the progress of power equipment manufacturing technology, a large amount of uses that SF6 gas-insulated converting equipment (be called for short GIS) obtains, indoor and underground substation GIS equipment more and more (its construction land be only equivalent to traditional 1/80).But compared with traditional open transformer station, indoor and underground substation GIS device context withstand voltage test seems again particularly special:
Indoor and underground substation narrow space, does not have enough spaces (do safe distance with), cannot test with traditional open substation field withstand voltage test equipment.
Due to singularity indoor and underground substation GIS equipment design itself, cannot do partial discharge test for it by useless traditional testing equipment.
GIS equipment is to carry out at the experiment hall of producer dispatching from the factory when it is done to switching impulse test.But want GIS equipment to do execute-in-place impulse test in indoor and underground substation, must have specialized equipment.
Summary of the invention
The technical matters that the present invention mainly solves is to provide the insulation of a kind of mobile gas and puts withstand voltage test system without office, can meet indoor and underground substation and want the demand of GIS equipment test, more meets the test demand of the flooring GIS of open type transformer station equipment.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of mobile gas insulation to put withstand voltage test system without office, withstand voltage test system comprises SF6 gas-insulated power frequency testing transformer, pressure regulator, compensation reactor, inflation bushing, inflatable condenser divider, the super ripple generation unit of doing, digital voltage, current signal collecting unit, optical-fibre communications unit, compensation reactor is connected with pressure regulator, pressure regulator is connected with SF6 gas-insulated power frequency testing transformer, inflation bushing and SF6 gas-insulated power frequency testing transformer and digital voltage, the docking of current signal collecting unit, inflatable condenser divider docks with SF6 gas-insulated power frequency testing transformer, super make ripple generation unit and be connected with SF6 gas-insulated power frequency testing transformer and optical-fibre communications unit respectively.
Preferably, inflatable condenser divider is pot type structure, carries out high-tension measurement and also local discharge signal is measured outward, and inflatable condenser divider docks its built-in voltage divider is calibrated with SF6 gas-insulated power frequency testing transformer.
Preferably, utilizing SF6 gas-insulated power frequency testing transformer to add the excess of imports in testing ground makes ripple generation unit and realizes the super ripple test of doing.
Preferably, digital voltage, current signal collecting unit complete the digitized measurement of voltage, current signal under any current potential.
Preferably, the transmission of tested voltage, current digital signal under any current potential can be realized in optical-fibre communications unit.
Preferably, digital voltage, current signal collecting unit receive the built-in voltage divider output terminal of SF6 gas-insulated power frequency testing transformer and digital voltage signal gathering unit are housed for measuring high tension voltage value and voltage waveform, digital current signal gathering unit are housed for measuring high-tension electricity flow valuve and current waveform at the high-voltage output end of power frequency testing transformer.
Preferably, super make ripple generation unit and formed by capacitor group and two switches, produce the super energy of making ripple for gas-insulated power frequency testing transformer provides.
Preferably, inflation bushing is also to being connected to shielding harness.
Preferably, surpass and do to be connected with Measurement and Control System between ripple generation unit (6) and optical-fibre communications unit (8).
The invention has the beneficial effects as follows: it is the device that is specifically designed to the site test of the GIS of transformer station equipment that mobile gas insulation of the present invention is put withstand voltage test system without office.Its advantage is:
Applicability widely: not only meet indoor and underground substation and want the demand of GIS equipment test, more meet the test demand of the flooring GIS of open type transformer station equipment.
Versatility flexibly: device can be used for the withstand voltage test of all different types of GIS equipment power frequencies, partial discharge test, switching impulse test.
Movability fast: package unit volume is traditional little by 1/30, is arranged in a motor vehicle, can fast transfer, and the rapid abutting joint at scene when device is separately furnished with three-dimensional traversing carriage and can realizes test.
Accompanying drawing explanation
Fig. 1 is that mobile gas insulation of the present invention is put the structural representation of withstand voltage test system without office.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of mobile gas insulation is put withstand voltage test system without office, withstand voltage test system comprises SF6 gas-insulated power frequency testing transformer 1, pressure regulator 2, compensation reactor 3, inflation bushing 4, inflatable condenser divider 5, the super ripple generation unit 6 of doing, digital voltage, current signal collecting unit 7, optical-fibre communications unit 8, compensation reactor 3 is connected with pressure regulator 2, pressure regulator 2 is connected with SF6 gas-insulated power frequency testing transformer 1, inflation bushing 4 and SF6 gas-insulated power frequency testing transformer 1 and digital voltage, current signal collecting unit 7 docks, inflatable condenser divider 5 docks with SF6 gas-insulated power frequency testing transformer 1, super make ripple generation unit 6 and be connected with SF6 gas-insulated power frequency testing transformer 1 and optical-fibre communications unit 8 respectively.
Utilizing SF6 gas-insulated power frequency testing transformer 1 to add the excess of imports in testing ground makes ripple generation unit 6 and realizes the super ripple test of doing.
Digital voltage, current signal collecting unit 7 complete the digitized measurement of voltage, current signal under any current potential.
The transmission of tested voltage, current digital signal under any current potential can be realized in optical-fibre communications unit 8.
Digital voltage, current signal collecting unit 7 receive the built-in voltage divider output terminal of SF6 gas-insulated power frequency testing transformer 1 and digital voltage signal gathering unit are housed for measuring high tension voltage value and voltage waveform, digital current signal gathering unit are housed for measuring high-tension electricity flow valuve and current waveform at the high-voltage output end of power frequency testing transformer.
Super make ripple generation unit 6 and formed by capacitor group and two switches, produce the super energy of making ripple for gas-insulated power frequency testing transformer provides.
Inflation bushing 4 is also to being connected to shielding harness.
Surpass and do to be connected with Measurement and Control System between ripple generation unit 6 and optical-fibre communications unit 8.
SF6 gas-insulated power frequency testing transformer 1: be the power frequency testing transformer that is compressed in the special construction in canister, have electric being connected by bushing with the external world, 10kV input voltage is risen to the required magnitude of voltage of test.Rated capacity: 375kVA rated voltage: 670kV/10kV rated frequency: the 50Hz number of phases: single-phase.Join built-in voltage divider, pressure measurement, coupling interface are established in outside.
Inflation bushing 4 use are docked with testing transformer, form conventional power frequency withstand test device; By this bushing, utilize external perimysium reference device to calibrate built-in voltage divider.
Inflatable condenser divider 5 pot type structures, SF6 gas-insulated structure.Dock with testing transformer its built-in voltage divider is calibrated.
Super make ripple generation unit 6 and formed by capacitor group and two switches, produce the super energy of making ripple for gas-insulated power frequency testing transformer provides.
Digital voltage, current signal collecting unit 7; Digital voltage signal gathering unit is housed for measuring high tension voltage value and voltage waveform at the built-in voltage divider output terminal of power frequency testing transformer, digital current signal gathering unit is housed for measuring high-tension electricity flow valuve and current waveform at the high-voltage output end of power frequency testing transformer.Realize the signals collecting under floating potential completely.
Optical-fibre communications unit 8 is used for transmitting the digital signal gathering under floating potential, plays the effect of potential isolation and signal transmission.
It is the device that is specifically designed to the site test of the GIS of transformer station equipment that mobile gas insulation of the present invention is put withstand voltage test system without office.Its advantage is:
Applicability widely: not only meet indoor and underground substation and want the demand of GIS equipment test, more meet the test demand of the flooring GIS of open type transformer station equipment.
Versatility flexibly: device can be used for the withstand voltage test of all different types of GIS equipment power frequencies, partial discharge test, switching impulse test.
Movability fast: package unit volume is traditional little by 1/30, is arranged in a motor vehicle, can fast transfer, and the rapid abutting joint at scene when device is separately furnished with three-dimensional traversing carriage and can realizes test.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (9)
1. a mobile gas insulation is put withstand voltage test system without office, it is characterized in that: withstand voltage test system comprises SF6 gas-insulated power frequency testing transformer (1), pressure regulator (2), compensation reactor (3), inflation bushing (4), inflatable condenser divider (5), the super ripple generation unit (6) of doing, digital voltage, current signal collecting unit (7), optical-fibre communications unit (8), compensation reactor (3) is connected with pressure regulator (2), pressure regulator (2) is connected with SF6 gas-insulated power frequency testing transformer (1), inflation bushing (4) and SF6 gas-insulated power frequency testing transformer (1) and digital voltage, current signal collecting unit (7) docking, inflatable condenser divider (5) docks with SF6 gas-insulated power frequency testing transformer (1), super make ripple generation unit (6) and be connected with SF6 gas-insulated power frequency testing transformer (1) and optical-fibre communications unit (8) respectively.
2. the insulation of the mobile gas described in claim 1 is put withstand voltage test system without office, it is characterized in that: inflatable condenser divider (5) is pot type structure, carry out high-tension measurement and also local discharge signal is measured outward, inflatable condenser divider (5) docks its built-in voltage divider is calibrated with SF6 gas-insulated power frequency testing transformer (1).
3. the mobile gas described in claim 1 insulation is put withstand voltage test system without office, it is characterized in that: utilize SF6 gas-insulated power frequency testing transformer (1) to add the excess of imports in testing ground and make ripple generation unit (6) and realize the super ripple test of doing.
4. the insulation of the mobile gas described in claim 1 is put withstand voltage test system without office, it is characterized in that: digital voltage, current signal collecting unit (7) complete the digitized measurement of voltage, current signal under any current potential.
5. the insulation of the mobile gas described in claim 1 is put withstand voltage test system without office, it is characterized in that: optical-fibre communications unit (8) can realize the transmission of tested voltage, current digital signal under any current potential.
6. the insulation of the mobile gas described in claim 1 is put withstand voltage test system without office, it is characterized in that: digital voltage, current signal collecting unit (7) receive the built-in voltage divider output terminal of SF6 gas-insulated power frequency testing transformer (1) and digital voltage signal gathering unit be housed for measuring high tension voltage value and voltage waveform, digital current signal gathering unit are housed for measuring high-tension electricity flow valuve and current waveform at the high-voltage output end of power frequency testing transformer.
7. the mobile gas described in claim 1 insulation is put withstand voltage test system without office, it is characterized in that: superly make ripple generation unit (6) and be made up of capacitor group and two switches, produce the super energy of making ripple for gas-insulated power frequency testing transformer provides.
8. the insulation of the mobile gas described in claim 1 is put withstand voltage test system without office, it is characterized in that: inflation bushing (4) is also to being connected to shielding harness.
9. the insulation of the mobile gas described in claim 1 is put withstand voltage test system without office, it is characterized in that: surpass and do to be connected with Measurement and Control System between ripple generation unit (6) and optical-fibre communications unit (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410068620.9A CN103837804A (en) | 2014-02-27 | 2014-02-27 | Mobile gas insulation non-partial-discharge voltage holding test system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410068620.9A CN103837804A (en) | 2014-02-27 | 2014-02-27 | Mobile gas insulation non-partial-discharge voltage holding test system |
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| CN103837804A true CN103837804A (en) | 2014-06-04 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104330597A (en) * | 2014-10-15 | 2015-02-04 | 国网青海省电力公司电力科学研究院 | Mobile power-frequency contamination test power supply system |
| CN106324461A (en) * | 2016-11-23 | 2017-01-11 | 国网四川省电力公司成都供电公司 | GIS alternate AC voltage withstand test insulation monitoring system and method |
| CN111044829A (en) * | 2019-12-31 | 2020-04-21 | 苏州华电电气股份有限公司 | Transformer bushing dielectric loss live monitoring device and system |
| CN112345901A (en) * | 2020-09-30 | 2021-02-09 | 江苏省如高高压电器有限公司 | Partial discharge test method for insulating part for high-voltage switch |
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| JP2001013197A (en) * | 1999-06-28 | 2001-01-19 | Mitsubishi Electric Corp | Electrical apparatus testing device |
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| CN101477183A (en) * | 2009-01-20 | 2009-07-08 | 湖南省电力公司超高压管理局 | Intelligent non-partial discharge extra-high voltage sine-wave modulation pressure-resistant apparatus |
| CN203069734U (en) * | 2013-02-20 | 2013-07-17 | 广州南方电力集团技术有限公司 | 300kW transformer partial discharge and induced over voltage withstand test system |
| CN103207358A (en) * | 2013-04-15 | 2013-07-17 | 广东电网公司佛山供电局 | High-voltage power cable nondestructive detection device |
| CN203811756U (en) * | 2014-02-27 | 2014-09-03 | 苏州华电电气股份有限公司 | Mobile gas insulation partial discharge-free withstand voltage test system |
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Patent Citations (7)
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| JP2001013197A (en) * | 1999-06-28 | 2001-01-19 | Mitsubishi Electric Corp | Electrical apparatus testing device |
| CN1719268A (en) * | 2005-08-04 | 2006-01-11 | 上海思源电气股份有限公司 | No partial discharge frequency conversion resonance experiment system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104330597A (en) * | 2014-10-15 | 2015-02-04 | 国网青海省电力公司电力科学研究院 | Mobile power-frequency contamination test power supply system |
| CN106324461A (en) * | 2016-11-23 | 2017-01-11 | 国网四川省电力公司成都供电公司 | GIS alternate AC voltage withstand test insulation monitoring system and method |
| CN106324461B (en) * | 2016-11-23 | 2019-05-21 | 国网四川省电力公司成都供电公司 | A kind of interval GIS ac voltage withstanding tests type insulation monitoring system and monitoring method |
| CN111044829A (en) * | 2019-12-31 | 2020-04-21 | 苏州华电电气股份有限公司 | Transformer bushing dielectric loss live monitoring device and system |
| CN112345901A (en) * | 2020-09-30 | 2021-02-09 | 江苏省如高高压电器有限公司 | Partial discharge test method for insulating part for high-voltage switch |
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Application publication date: 20140604 |