CN204694809U - A kind of GIS insulating part high-voltage testing device - Google Patents
A kind of GIS insulating part high-voltage testing device Download PDFInfo
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- CN204694809U CN204694809U CN201520352539.3U CN201520352539U CN204694809U CN 204694809 U CN204694809 U CN 204694809U CN 201520352539 U CN201520352539 U CN 201520352539U CN 204694809 U CN204694809 U CN 204694809U
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Abstract
A kind of GIS insulating part high-voltage testing device, comprise transformer, six-component force balance gas tank, voltage divider and several test units, transformer connects six-component force balance gas tank by oil-gas casing, voltage divider connects six-component force balance gas tank by pipeline, test unit is connected with six-component force balance gas tank, test unit comprises test tank body, the junction of test tank body and six-component force balance gas tank is provided with peviform pour mass, peviform pour mass is bolted on test tank body port and makes gas barrier between the second connecting tube and test tank body, peviform pour mass is provided with wire can be communicated with bus and insulating part to be tested, several cylindrical roller bearings are provided with in test tank body, the central axis upright of roller bearing is in the central axis of described test tank body.It takes up room little, simple to operate, and cost is low.
Description
Technical field
The utility model relates to high-tension apparatus, particularly relates to a kind of GIS insulating part high-voltage testing device.
Background technology
Insulating part (disc insulator, support insulator etc.) is the critical component of insulation in gas-insulated closed metal switchgear (being called for short GIS), use in a large number in GIS, and its electric property must be guaranteed, GIS is completely cut off by metal shell and extraneous air, be filled with the six-component force balance gas of certain pressure therein, each inflatable air chamber uses insulation disc insulator to separate, use support insulator to support conductor, accomplish to insulate between charged high-pressure conductor and shell.If there is bubble, impurity etc. in insulating part, shelf depreciation when can cause insulating part charging operation, defect constantly increases, and finally causes insulation breakdown, causes GIS discharge accident.
The withstand voltage test of insulating part and measurement of partial discharge, can check insulating part whether existing defects, be the important means of inspection insulating part electric property, and insulating part is batch production product; The high-tension testing apparatus of current use is domestic is generally open type, larger by external environment influence during the large and Partial Discharge Detection of floor area, and external (as fertile in Germany sea) gas-insulated testing equipment price is higher, and due to gas-insulated, the heat dispersion of testing transformer is poor, therefore, how to develop energy bulge test, the test unit of environmental interference during test, can be avoided to be the problem that need solve.
Domestic oil insulation test transformer technology is ripe, the shelf depreciation of transformer own is minimum, also metal shell formula can be made, relatively high power can be accomplished, and perfect heat-dissipating, conventional test transformer is drawn with bushing, if can be introduced directly in gas insulated bus, be connected with insulating part trial shell by high-pressure conductor, multiple insulating part can be connected together in trial shell, simultaneously, gas insulated bus can arrange the parallel connection of multiple trial shell and connect, and each trial shell arranges Manual isolation switch, can test by the insulating part in a housing like this, also can test by the insulating part in multiple housing, simultaneously, package unit is full closeding equipment, after shell reliable ground, due to shielding effect, the impact of external environment can not be subject to during test.Direct employing bushing shell for transformer connects, and also can realize the connection between testing transformer and gas insulated bus, but size too large (length of 550kV sleeve pipe about 4 meters), limited space system.
Utility model content
In order to solve the problems of the technologies described above, the utility model proposes a kind of GIS insulating part high-voltage testing device, it can carry out insulating part industrial frequency withstand voltage, partial discharge test in batches, and in test unit integral sealing and metal shell, metal shell reliable ground, not by environmental interference.It takes up room little, simple to operate, and cost is low.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of GIS insulating part high-voltage testing device, comprise transformer, six-component force balance gas tank, voltage divider and several test units, described transformer connects six-component force balance gas tank by oil-gas casing, described voltage divider connects six-component force balance gas tank by pipeline, described test unit comprises the first connecting tube, second connecting tube and test tank body, described first connecting tube is fixedly connected with six-component force balance gas tank and the second connecting tube respectively by flange, described second connecting tube is fixedly connected with test tank body by flange, described second connecting tube is provided with peviform pour mass with the junction of test tank body, described peviform pour mass is provided with by building the center conductor that formation one is overall with it, described peviform pour mass is bolted on test tank body port and makes gas barrier between the second connecting tube and test tank body, described center conductor one end is by wire connection bus, the other end of described center conductor is provided with insulating part connection terminal, described bus is located in six-component force balance gas tank by the high-tension bus-bar in the contact connection transformer in described oil-gas casing, be provided with several cylindrical roller bearings in described test tank body, the central axis upright of described roller bearing is in the central axis of described test tank body.
The sidewall of described test tank body is provided with ground terminal.
The external sidewall of described test tank is provided with four base for supporting.
Also comprise conductor adapting piece, described conductor adapting piece be L shape, the bottom of described conductor adapting piece is provided with through hole, for conductor adapting piece is fixed on the insulator, described conductor adapting piece be provided with blind hole, in described blind hole, spring conductor is housed, the natural length of described spring conductor is greater than the degree of depth of described blind hole.
Described wire is provided with disconnect DS and grounding switch ES.
The beneficial effects of the utility model are:
1, be applied to by oil-gas casing in insulator high-potting, one end is installed in oil insulated transformer, and one end is installed in SF6 gas insulated bus, is installed on the insulated lengths only about 1.3 meters in gas, compared with common transformer sleeve pipe, greatly saves space.
2, be provided with ground terminal, all insulating parts to be tested concentrate ground connection by ground terminal, save wiring space, during test, all ground wires are connected on ground terminal, are then carrying out OSC detection by inductive coil, carry out separately detection separately through inductive coil compare with existing, this design both saved resource, also detecting step is simplified, when carrying out OSC detection, first detect on the whole, detect separately again when only having entirety not meet standard, improve detection efficiency.
3, roller bearing is provided with in test tank body, when carrying out high-potting, insulator is loaded on support slot, support slot is pushed test tank body, because roller bearing is fixed in test tank body by fixed support, in rolling process, can't not rub between roller bearing and test tank body, this saves the workload of staff greatly, time saving and energy saving.
4, on conductor adapting piece, be provided with blind hole, and utilize the gap between spring conductor elimination conductor adapting piece, ensure that the unobstructed outage problem effectively avoided because gap produces of circuit.
Accompanying drawing explanation
Fig. 1 the utility model structural representation;
Fig. 2 oil-gas casing connection layout;
Fig. 3 insulating part puts into structural representation during test tank body;
The structural representation of Fig. 4 insulating part and conductor adapting piece;
Fig. 5 roller bearing schematic diagram.
Wherein, 1 transformer; 2 six-component force balance gas tank; 3 voltage dividers; 5 oil-gas casings; 6 first connecting tubes; 7 second connecting tubes; 8 test tank bodies; 9 peviform pour mass; 10 center conductors; 11 insulator connection terminals; 12 roller bearings; 13 ground terminals; 14 base for supporting; 15 conductor adapting pieces; 16 blind holes; 17 spring conductor; 18 fixed supports; 19 support slots.
Embodiment
In order to better understand the technical solution of the utility model, below in conjunction with accompanying drawing, the utility model is described in further detail.
As Figure 1-5, a kind of GIS insulating part high-voltage testing device, comprise transformer 1, six-component force balance gas tank 2, voltage divider 3 and several test units, described transformer 1 connects six-component force balance gas tank by oil-gas casing 5, described voltage divider 3 connects six-component force balance gas tank 2 by pipeline, described test unit comprises the first connecting tube 6, second connecting tube 7 and test tank body 8, described first connecting tube 6 is fixedly connected with six-component force balance gas tank 2 and the second connecting tube 7 respectively by flange, described second connecting tube 7 is fixedly connected with test tank body 8 by flange, described second connecting tube 7 is provided with peviform pour mass 9 with the junction of test tank body 8, described peviform pour mass is provided with by building the center conductor 10 that formation one is overall with it, described peviform pour mass is bolted on test tank body port and makes gas barrier between the second connecting tube and test tank body, described center conductor one end is by wire connection bus, the other end of described center conductor is provided with insulating part connection terminal 11, described bus is located in six-component force balance gas tank by the high-tension bus-bar in the contact connection transformer in described oil-gas casing, be provided with several cylindrical roller bearings 12 in described test tank body, the central axis upright of described roller bearing is in the central axis of described test tank body.
Roller bearing 12 is arranged in test tank body 8 by fixed support 18, roller bearing freely can rotate on fixed support, roller bearing is installed tank body with test and is not directly contacted, which ensure that in roller bearing rolling process and can't rub with tank body, during work, insulating part is put into support slot 19, then whole support slot is pushed test tank body and carry out Hi-pot test, and roller bearing and tank body not direct touch scrolling time can not there is friction force, staff is time saving and energy saving.
The sidewall of described test tank body is provided with ground terminal 13, and the ground wire of detected insulating part passes through ground terminal ground.
The external sidewall of described test tank is provided with four base for supporting 14, departs from ground for supporting test tank body.
Also comprise conductor adapting piece 15, described conductor adapting piece be L shape, the bottom of described conductor adapting piece is provided with through hole, for conductor adapting piece is fixed on the insulator, described conductor adapting piece be provided with blind hole 16, spring conductor 17 is housed in described blind hole, and the natural length of described spring conductor is greater than the degree of depth of described blind hole.Adopt the design of L shape, two L shape conductor adapting piece complementations make the circuit between two insulating parts connect.
Described wire is provided with disconnect DS and grounding switch ES.
The utility model is in conjunction with present status in China, and utilize oil-gas sleeve pipe to connect, one end is installed in oil insulated transformer, one end is installed in SF6 gas insulated bus, be installed on the insulated lengths only about 1.3 meters in gas, compared with common transformer sleeve pipe, greatly save space.Its partial discharge quantity can be controlled in below 2PC under rated voltage, meets set of equipments request for utilization.According to relevant criterion 550kV GIS insulating part trial voltage: 740kV 1 minute; Shelf depreciation: under 381kV voltage ,≤3PC, determine customization 800kV 2A testing transformer, testing transformer adopts 600kV oil-gas sleeve pipe to draw, and meets the test needs of 550kV and following GIS insulating part completely.800kV 2A metal shell testing transformer is domestic matured product, and price is the end comparatively.
Prevent true software through electric Field Calculation and relative electric fields, devise connection bus, voltage divider housing, insulating part test tank body size and high-pressure electrified conductor size respectively, accompanying drawing dimensional units provided by the utility model is centimetre.Each test tank body and bus are all provided with built-in high-frequency local discharging sensor, and ultrahigh frequency (UHF) method also measure local can be adopted to discharge; Meanwhile, each insulating part grounded part in each test tank body can, separately through hermetic terminal ground connection, when overall also measure local discharge capacity exceeds standard, can use high-frequency current detection method to detect separately the single insulating part that partial discharge quantity exceeds standard.
Complete equipment adopt the capacitive divider closed to carry out voltage measurement, and capacitive divider doubles as coupling capacitance, and ERA method can be adopted to carry out measurement of partial discharge; Current complete equipment are provided with three test tank bodies, can carry out withstand voltage and measurement of partial discharge, simultaneously to 30 550kV disc insulators simultaneously, test tank body easily extensible, reach the object of bulge test, the setting of this test unit, all achieve good effect economically and in performance.Can promote the use of!
By reference to the accompanying drawings embodiment of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (5)
1. a GIS insulating part high-voltage testing device, comprise transformer, six-component force balance gas tank, voltage divider and several test units, it is characterized in that, described transformer connects six-component force balance gas tank by oil-gas casing, described voltage divider connects six-component force balance gas tank by pipeline, described test unit comprises the first connecting tube, second connecting tube and test tank body, described first connecting tube is fixedly connected with six-component force balance gas tank and the second connecting tube respectively by flange, described second connecting tube is fixedly connected with test tank body by flange, described second connecting tube is provided with peviform pour mass with the junction of test tank body, described peviform pour mass is provided with by building the center conductor that formation one is overall with it, described peviform pour mass is bolted on test tank body port and makes gas barrier between the second connecting tube and test tank body, described center conductor one end is by wire connection bus, the other end of described center conductor is provided with insulating part connection terminal, described bus is located in six-component force balance gas tank by the high-tension bus-bar in the contact connection transformer in described oil-gas casing, be provided with several cylindrical roller bearings in described test tank body, the central axis upright of described roller bearing is in the central axis of described test tank body.
2. a kind of GIS insulating part high-voltage testing device according to claim 1, it is characterized in that, the sidewall of described test tank body is provided with ground terminal.
3. a kind of GIS insulating part high-voltage testing device according to claim 1 and 2, it is characterized in that, the external sidewall of described test tank is provided with four base for supporting.
4. a kind of GIS insulating part high-voltage testing device according to claim 1 and 2, it is characterized in that, also comprise conductor adapting piece, described conductor adapting piece be L shape, the bottom of described conductor adapting piece is provided with through hole, for by fixing for conductor adapting piece on the insulator, described conductor adapting piece be provided with blind hole, in described blind hole, spring conductor is housed, the natural length of described spring conductor is greater than the degree of depth of described blind hole.
5. a kind of GIS insulating part high-voltage testing device according to claim 4, it is characterized in that, described wire is provided with disconnect DS and grounding switch ES.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520352539.3U CN204694809U (en) | 2015-05-27 | 2015-05-27 | A kind of GIS insulating part high-voltage testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520352539.3U CN204694809U (en) | 2015-05-27 | 2015-05-27 | A kind of GIS insulating part high-voltage testing device |
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| CN204694809U true CN204694809U (en) | 2015-10-07 |
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| CN201520352539.3U Expired - Fee Related CN204694809U (en) | 2015-05-27 | 2015-05-27 | A kind of GIS insulating part high-voltage testing device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865507A (en) * | 2015-05-27 | 2015-08-26 | 山东电工电气日立高压开关有限公司 | GIS-used insulating member high voltage test device |
| CN105606851A (en) * | 2015-11-27 | 2016-05-25 | 平高集团有限公司 | Insulator driving apparatus for high-voltage DC support insulator test apparatus |
| CN108020760A (en) * | 2017-11-02 | 2018-05-11 | 国网浙江省电力公司嘉兴供电公司 | Industrial frequency withstand voltage testing equipment in one kind automation insulation seed oil |
| CN109453574A (en) * | 2018-12-24 | 2019-03-12 | 成都高脉电子产品有限公司 | A kind of electrovacuum super-pressure ageing gas and oil separating plant |
| CN114243525A (en) * | 2021-12-15 | 2022-03-25 | 江苏安靠智能输电工程科技股份有限公司 | Opening and changing integrated machine |
-
2015
- 2015-05-27 CN CN201520352539.3U patent/CN204694809U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104865507A (en) * | 2015-05-27 | 2015-08-26 | 山东电工电气日立高压开关有限公司 | GIS-used insulating member high voltage test device |
| CN105606851A (en) * | 2015-11-27 | 2016-05-25 | 平高集团有限公司 | Insulator driving apparatus for high-voltage DC support insulator test apparatus |
| CN105606850A (en) * | 2015-11-27 | 2016-05-25 | 平高集团有限公司 | High-voltage DC support insulator test apparatus, test system and system method |
| WO2017088307A1 (en) * | 2015-11-27 | 2017-06-01 | 国家电网公司 | High-voltage dc support insulator test apparatus, test system and test method |
| CN105606851B (en) * | 2015-11-27 | 2019-01-11 | 国家电网公司 | High voltage direct current supporting insulator experimental rig insulator driving device |
| CN105606850B (en) * | 2015-11-27 | 2019-01-22 | 平高集团有限公司 | High voltage direct current supporting insulator experimental rig, pilot system and test method |
| CN108020760A (en) * | 2017-11-02 | 2018-05-11 | 国网浙江省电力公司嘉兴供电公司 | Industrial frequency withstand voltage testing equipment in one kind automation insulation seed oil |
| CN109453574A (en) * | 2018-12-24 | 2019-03-12 | 成都高脉电子产品有限公司 | A kind of electrovacuum super-pressure ageing gas and oil separating plant |
| CN109453574B (en) * | 2018-12-24 | 2023-11-28 | 成都凯赛尔光电有限公司 | Electric vacuum ultrahigh-pressure aging oil-gas separation device |
| CN114243525A (en) * | 2021-12-15 | 2022-03-25 | 江苏安靠智能输电工程科技股份有限公司 | Opening and changing integrated machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151007 Termination date: 20190527 |
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| CF01 | Termination of patent right due to non-payment of annual fee |