CN101975905A - Insulation closed device for GIS (Gas Insulated Switchgear) electromagnetic voltage transformer test and test method thereof - Google Patents
Insulation closed device for GIS (Gas Insulated Switchgear) electromagnetic voltage transformer test and test method thereof Download PDFInfo
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- CN101975905A CN101975905A CN2010105161514A CN201010516151A CN101975905A CN 101975905 A CN101975905 A CN 101975905A CN 2010105161514 A CN2010105161514 A CN 2010105161514A CN 201010516151 A CN201010516151 A CN 201010516151A CN 101975905 A CN101975905 A CN 101975905A
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Abstract
The invention belongs to the technical field of power system detection, and particularly discloses an insulation closed device for a GIS (Gas Insulated Switchgear) electromagnetic voltage transformer test and a test method thereof. The insulation closed device for the GIS electromagnetic voltage transformer test is provided with a closed test container with butted two halves, the closed test container is connected and communicated with a gas transmission general pipe and three gas transmission branch pipe in sequence, the three gas transmission branch pipes are respectively connected and communicated with a vacuum pump, an N2 gas storage tank and an SF6 gas storage tank and are all provided with a valve, the gas transmission general pipe is provided with a pressure meter, an electromagnetic transformer fixing bracket is installed in the closed test container, and a lead which is used for connecting the inside and the outside and transmitting signals and power is arranged on the wall of the closed test container. By using the detection device and the test method of the invention, the rapid detection of GIS partial discharge can be realized; in addition, the invention has the advantages of simple structure, convenient operation, high safety and reliability, high detection efficiency, and the like.
Description
Technical field
The invention belongs to electric system detection technique field, particularly a kind of GIS electromagnetic potential transformer test insulation obturator and method of testing.
Background technology
Along with the continuous progress of electric power network technique, GIS is that rice is extensive more more in the application of transformer station for gas insulated combined electrical equipment.Yet, when electromagnetic potential transformer carries out on-the-spot commissioning test, because insulation can't be satisfied high-tension requirement, can't finish the test of the excitation property of " Erection works of electrical installations Standard for handover test of electric equipment " requirement always, perplexing the running quality of electrical network.Up to now, this problem does not obtain comparatively desirable solution as yet.
Summary of the invention
The purpose of this invention is to provide a kind of test mass that can guarantee electromagnetic potential transformer reliably, and simple in structure, easy to operate, testing efficiency height, safe and reliable GIS electromagnetic potential transformer test insulation obturator and method of testing.
Realize that the technical scheme that purpose of the present invention is taked is: this GIS electromagnetic potential transformer test insulation obturator has the airtight test container of a two halves butt joint, this airtight test container connects successively and is communicated with gas transmission main and 3 gas transmission arms, and 3 gas transmission arms connect respectively and are communicated with vacuum pump, N
2Gas reservoir and SF6 gas reservoir, be equipped with valve on the gas transmission arm, gas transmission main is provided with rain glass, is provided with the electromagnetic potential transformer fixed support in the described airtight test container, and airtight test container wall is provided with the lead that is used for transmission signals and power supply inside and outside the connection.
The airtight test container of described two halves butt joint adopts flange, threaded fastener to connect.
GIS electromagnetic potential transformer method of testing is carried out according to the following steps:
1) clamping: electromagnetic potential transformer to be measured is fixed on the described fixed support, compresses, connect electromagnetic potential transformer test signal lead and power supply, close all bronchi valve again with the butt joint of two semi-hermetic test containers, and with threaded fastener:
2) pressure testing: open connection N
2Valve on the gas transmission arm of gas storage tank fills N in airtight test container
2Gas is observed rain glass, valve-off after air pressure reaches 0.45MP, and check that with suds liquid there is not gas leak phenomenon each junction of airtight test container docking site and gas transmission main, gas transmission arm, if leak air, should in time handle, guarantee that each sealing is good;
3) vacuumize: open the valve on the gas transmission arm that is communicated with vacuum pump, observe rain glass and reach-0.01MP, and after keeping 15 minutes, close on the gas transmission arm valve;
4) fill SF6 gas, test: open the valve on the gas transmission arm that is communicated with the SF6 gas reservoir, in airtight test container, fill SF6 gas, observe rain glass, when air pressure reaches 0.45MP, close the valve on the gas transmission arm, can carry out the test of electromagnetic potential transformer excitation property according to a conventional method.
Use the GIS local discharge detection device and the detection method of such scheme, can realize the fast detecting of GIS shelf depreciation, and have simple in structure, easy and simple to handle, safe and reliable, the detection efficiency advantages of higher.
Description of drawings
Fig. 1 is the structural representation of electromagnetic potential transformer test insulation obturator.
Embodiment
As shown in Figure 1: GIS electromagnetic potential transformer test insulation obturator of the present invention is by airtight test container 1, vacuum pump 5, N
2Gas reservoir 4 and SF6 gas reservoir 3 are formed, airtight test container 1 and vacuum pump 5, N
2Be connected with gas transmission arm 7 by gas transmission main 9 successively between gas reservoir 4 and the SF6 gas reservoir 3, on each gas transmission arm 7 valve 6 is housed all, be used for controlling respectively the break-make of each gas transmission arm 7, rain glass 8 is housed on the gas transmission main 9, be used to measure, observe the air pressure size in the airtight test container 1.Described airtight test container 1 is the structure of two halves housing butt joint, and adopts flange 11 to compress with threaded fastener 10 to be connected.Be provided with fixed support 2 in airtight test container 1, the clamping that is used for electromagnetic potential transformer 12 to be measured is fixed, and is coated with lead 13 on the sidewall of airtight test container 1, is used for the transmission that is connected of testing power supply and test signal.
GIS electromagnetic potential transformer method of testing of the present invention is: at first, electromagnetic potential transformer to be measured 12 is fixed on the described fixed support 2, again two semi-hermetic test container housings are docking together, and compress with threaded fastener 10, connect the signal transmission and the power lead 13 of electromagnetic potential transformer 12, with valve 6 Close Alls of all gas transmission arms 7.Then, open connection N earlier
2The gas transmission arm valve of gas storage tank 4 is to inflation pressure testing in the airtight test container 1, leaks in the test process avoiding, and influences the insulation effect in the airtight test container 1.Observe rain glass 8, after the air pressure in the airtight test container 1 reaches 0.45MP, will be communicated with N
2The valve closing of gas storage tank 4, and the junction of airtight test container 1 and gas transmission main 9, gas transmission arm 7 each connecting portion are checked with suds liquid, whether watch it leaks gas, if leak air, should in time handle, guarantee that each sealing is good, guarantee to be not less than 0.40MP at test process pressure.After airtight test container 1 and gas transmission main 9, gas transmission arm 7 good seals are confirmed in pressure testing, can open the bronchus valve that is communicated with vacuum pump 5, airtight test container 1 is vacuumized, observe rain glass to reach-during 0.01MP, and after keeping 15 minutes, the valve closing of vacuum pump 5 will be communicated with.At last, open the gas transmission arm valve that is communicated with SF6 gas reservoir 3 again, in airtight test container 1, fill SF6 gas, to guarantee the insulation condition of electromagnetic potential transformer excitation characteristic test, observe rain glass 8, when the air pressure in the airtight test container 1 reaches 0.45MP, close the valve that is communicated with SF6 gas reservoir 3, can carry out the test of electromagnetic potential transformer 12 excitation properties according to a conventional method.After the test of finishing electromagnetic potential transformer 12 excitation properties, can carry out release to airtight test container 1, open airtight test container 1, take out the electromagnetic potential transformer excitation 12 that test finishes, so repetitive operation is tested one by one to electromagnetic potential transformer, and test passes person carries out the supporting installation of generalized information system; The failure is keeped in repair or eliminates.Thus, before installation, electromagnetic potential transformer is tested, can guarantee that the electromagnetic potential transformer of installing meets " Erection works of electrical installations Standard for handover test of electric equipment ", and prevent that unacceptable product from entering fixing link, sound goes to change the dismounting trouble, easy again test operation has reduced labour intensity, has improved testing efficiency.
Claims (3)
1. a G worker S electromagnetic potential transformer is tested the insulation obturator, it is characterized in that: this device has the airtight test container of a two halves butt joint, this airtight test container connects successively and is communicated with gas transmission main and 3 gas transmission arms, and 3 gas transmission arms connect respectively and are communicated with vacuum pump, N
2Gas reservoir and SF6 gas reservoir, be equipped with valve on the gas transmission arm, gas transmission main is provided with rain glass, is provided with the electromagnetic potential transformer fixed support in the described airtight test container, and airtight test container wall is provided with the lead that is used for transmission signals and power supply inside and outside the connection.
2. GIS electromagnetic potential transformer test insulation obturator as claimed in claim 1, it is characterized in that: the airtight test container of described two halves butt joint adopts flange, threaded fastener to connect.
3. one kind is used for the method for testing that the described GIS electromagnetic potential transformer of claim 1 is tested the insulation obturator, and it is characterized in that: this method of testing is to carry out according to the following steps:
1) clamping: electromagnetic potential transformer to be measured is fixed on the described fixed support, compresses, connect electromagnetic potential transformer test signal lead and power supply, close all bronchi valve again with the butt joint of two semi-hermetic test containers, and with threaded fastener;
2) pressure testing: open connection N
2Valve on the gas transmission arm of gas storage tank fills N in airtight test container
2Gas is observed rain glass, valve-off after air pressure reaches 0.45MP, and check that with suds liquid there is not gas leak phenomenon each junction of airtight test container docking site and gas transmission main, gas transmission arm, if leak air, should in time handle, guarantee that each sealing is good;
3) vacuumize: open the valve on the gas transmission arm that is communicated with vacuum pump, observe rain glass and reach-0.01MP, and after keeping 15 minutes, close on the gas transmission arm valve;
4) fill SF6 gas, test: open the valve on the gas transmission arm that is communicated with the SF6 gas reservoir, in airtight test container, fill SF6 gas, observe rain glass, when air pressure reaches 0.45MP, close the valve on the gas transmission arm, can carry out the test of electromagnetic potential transformer excitation property according to a conventional method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105161514A CN101975905A (en) | 2010-10-22 | 2010-10-22 | Insulation closed device for GIS (Gas Insulated Switchgear) electromagnetic voltage transformer test and test method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105161514A CN101975905A (en) | 2010-10-22 | 2010-10-22 | Insulation closed device for GIS (Gas Insulated Switchgear) electromagnetic voltage transformer test and test method thereof |
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| CN101975905A true CN101975905A (en) | 2011-02-16 |
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| CN2010105161514A Pending CN101975905A (en) | 2010-10-22 | 2010-10-22 | Insulation closed device for GIS (Gas Insulated Switchgear) electromagnetic voltage transformer test and test method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364327A (en) * | 2011-10-27 | 2012-02-29 | 国网电力科学研究院武汉南瑞有限责任公司 | Sulfur hexafluoride gas-filled type current transformer insulation state on-line monitoring system and method |
| CN104597425A (en) * | 2015-01-21 | 2015-05-06 | 国家电网公司 | Electric examination platform suitable for GIS (geographic information system) electronic transformer |
| CN106287229A (en) * | 2016-10-21 | 2017-01-04 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of insulative gas mix body gas charging system and inflation method |
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| DE4038266A1 (en) * | 1990-11-30 | 1992-06-04 | Siemens Ag | Testing gas pressure tightness, esp. sulphur hexa:fluoride tightness of capacitors - placing component in container, evacuating container, then taking and measuring gas sample |
| JP2002196042A (en) * | 2000-10-10 | 2002-07-10 | Mire Kk | Device test handler and its operation method |
| CN101598624A (en) * | 2009-06-19 | 2009-12-09 | 安东石油技术（集团）有限公司 | A kind of leak hunting method of gases at high pressure efficiently |
| CN101726395A (en) * | 2009-12-17 | 2010-06-09 | 浙江东海岸船业有限公司 | Method for testing tightness of welding lines |
| CN201576554U (en) * | 2009-12-31 | 2010-09-08 | 河南信电电器有限公司 | Three-phase box-shared type voltage transformer |
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2010
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| DE4038266A1 (en) * | 1990-11-30 | 1992-06-04 | Siemens Ag | Testing gas pressure tightness, esp. sulphur hexa:fluoride tightness of capacitors - placing component in container, evacuating container, then taking and measuring gas sample |
| JP2002196042A (en) * | 2000-10-10 | 2002-07-10 | Mire Kk | Device test handler and its operation method |
| CN101598624A (en) * | 2009-06-19 | 2009-12-09 | 安东石油技术（集团）有限公司 | A kind of leak hunting method of gases at high pressure efficiently |
| CN101726395A (en) * | 2009-12-17 | 2010-06-09 | 浙江东海岸船业有限公司 | Method for testing tightness of welding lines |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102364327A (en) * | 2011-10-27 | 2012-02-29 | 国网电力科学研究院武汉南瑞有限责任公司 | Sulfur hexafluoride gas-filled type current transformer insulation state on-line monitoring system and method |
| CN102364327B (en) * | 2011-10-27 | 2014-04-30 | 国网电力科学研究院武汉南瑞有限责任公司 | Sulfur hexafluoride gas-filled type current transformer insulation state on-line monitoring system and method |
| CN104597425A (en) * | 2015-01-21 | 2015-05-06 | 国家电网公司 | Electric examination platform suitable for GIS (geographic information system) electronic transformer |
| CN104597425B (en) * | 2015-01-21 | 2019-06-14 | 国家电网公司 | One kind being suitable for GIS electronic mutual inductor and charges evaluating platform |
| CN106287229A (en) * | 2016-10-21 | 2017-01-04 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of insulative gas mix body gas charging system and inflation method |
| CN106287229B (en) * | 2016-10-21 | 2019-03-26 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of insulative gas mix body inflation system and inflation method |
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Application publication date: 20110216 |