CN219475758U - Transformer oil-SF 6 sleeve joint high-efficiency test device - Google Patents
Transformer oil-SF 6 sleeve joint high-efficiency test device Download PDFInfo
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- CN219475758U CN219475758U CN202223510555.XU CN202223510555U CN219475758U CN 219475758 U CN219475758 U CN 219475758U CN 202223510555 U CN202223510555 U CN 202223510555U CN 219475758 U CN219475758 U CN 219475758U
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- 238000012360 testing method Methods 0.000 title claims abstract description 164
- 230000005684 electric field Effects 0.000 claims description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- WABPQHHGFIMREM-VENIDDJXSA-N lead-201 Chemical compound [201Pb] WABPQHHGFIMREM-VENIDDJXSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model belongs to the technical field of transformer oil-SF 6 bushing interface test devices, and discloses a transformer oil-SF 6 bushing interface high-efficiency test device which comprises a test lifting seat, a test bushing, a cut-off switch and a touch seat, wherein the oil-SF 6 bushing comprises a first lead, an interface, a first voltage equalizing ball and a second voltage equalizing ball, and the first lead is arranged at the lower part of the oil-SF 6 bushing. According to the utility model, through the cooperation of structures such as the lifting seat, the oil-SF 6 sleeve, the test lifting seat, the test sleeve, the disconnecting switch and the touch seat, connection and disconnection of a test circuit can be realized under the condition that the test device is not disassembled, and after the test device is disconnected, the disconnecting part can meet the insulation requirement of an electric test, so that the test efficiency of a factory is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of transformer oil-SF 6 bushing interface test devices, and particularly relates to a transformer oil-SF 6 bushing interface high-efficiency test device.
Background
The oil end of the oil-SF 6 sleeve is connected with the transformer, the SF6 end is connected with the GIS, and due to the structural characteristics, when a factory test is carried out, the oil-air sleeve or the SF 6-air sleeve (dry sleeve) is connected with the oil-SF 6 sleeve, and then a high-voltage test is carried out by applying a voltage from the air end of the sleeve;
when the oil-air sleeve is adopted for factory test, because the oil-air sleeve and the oil-SF 6 sleeve are connected in parallel, when voltage loading is carried out, current directly flows into a transformer coil through the oil-air sleeve and a lead wire, the current does not pass through the oil-SF 6 sleeve, and test verification cannot be carried out on the oil-SF 6 sleeve.
In the case of the factory test using an SF 6-air bushing (dry bushing), if the SF 6-air bushing (dry bushing) is connected in series with an oil-SF 6 bushing, it is difficult to determine whether the bushing is a partial discharge or a partial discharge of a transformer when a partial discharge test is performed because of a non-capacitive SF 6-air bushing (dry bushing), and in addition, when a long-term induction withstand voltage test is performed, high voltage induced by a transformer coil is conducted to the SF 6-air bushing (dry bushing), and the end of the SF 6-air bushing (dry bushing) is charged for a long time, and in this state, the operation of other equipment (traveling) interferes with the test, and in addition, the SF 6-air bushing (dry bushing) is relatively high in price and relatively low in cost performance because of a complicated structure.
The utility model provides a high-efficiency test device for a transformer oil-SF 6 bushing interface, which has the characteristics of compact structure, low cost, high reliability and the like, can effectively judge whether the bushing is partially discharged or partially discharged from a transformer in the test, can rapidly disconnect the test bushing from the transformer, and improves the efficiency in the test.
Disclosure of Invention
The utility model aims to provide a high-efficiency test device for a transformer oil-SF 6 bushing interface, which aims to solve the problems in the background technology.
In order to achieve the above object, the present utility model provides the following technical solutions: the high-efficiency test device for the transformer oil-SF 6 sleeve interface comprises a test device, wherein the test device comprises a test lifting seat, a test sleeve, a disconnecting switch, a touch seat and matched components thereof;
the kit comprises a first lifting seat and an oil-SF 6 sleeve;
the oil-SF 6 sleeve comprises a first lead, an interface, a first pressure equalizing ball and a second pressure equalizing ball, wherein the first lead is arranged at the lower part of the oil-SF 6 sleeve, the interface is arranged at the upper part of the oil-SF 6 sleeve, the first pressure equalizing ball is arranged in the lower part of the oil-SF 6 sleeve, and the second pressure equalizing ball is arranged in the upper part of the oil-SF 6 sleeve;
the surface of the test lifting seat is provided with a manhole and a pressure discharge device from top to bottom;
the lower end of the test sleeve is provided with a switching lifting seat, a flange at the upper part of the switching lifting seat is provided with a shield, the shield is fixedly connected with the switching lifting seat through an insulating bolt, a pressure gauge and a test tap are symmetrically arranged outside the surface of the switching lifting seat left and right, a second lead is arranged between the shield and the test tap, a first conducting rod is movably arranged inside the test sleeve, the shield and the outer side of the first conducting rod are coaxially arranged, a third equalizing ring is movably arranged on the surface of the top of the upper end of the test sleeve, and a terminal plate is movably arranged at the top of the upper end of the test sleeve and is electrically connected with external test equipment;
the disconnecting switch comprises an operating handle, an operating rod, a gear set, a conducting head, a second conducting rod, a ball screw, a first contact finger and a third pressure equalizing ball, wherein the conducting head is arranged in the upper end of the test lifting seat;
the touch seat comprises a flange, a touch seat head and a third conducting rod, wherein the touch seat head, the third conducting rod and the flange are connected in a welding mode from top to bottom, a groove is formed in the touch seat head, and a second touch finger is inlaid in the groove.
Preferably, the first lifting seat is filled with transformer oil, and the first lifting seat is mechanically connected with the transformer.
Preferably, the upper part of the oil-SF 6 sleeve is connected with the flange of the contact seat through an interface, and the lower part of the oil-SF 6 sleeve is electrically connected with the transformer through a first lead.
Preferably, the test lifting seat and the oil-SF 6 sleeve are connected and sealed through a flange interface, and the lower part of the oil-SF 6 sleeve is connected with the first lifting seat through the flange interface.
Preferably, the test lifting seat and the test sleeve are main components outside the test device, the test lifting seat and the test sleeve are connected through the transfer lifting seat, are connected and sealed by adopting flange interfaces, and are filled with SF6 gas.
Preferably, the test tap is grounded, i.e. the shield is grounded, to play a role in uniform electric field when a high-voltage test is performed, and is led out when a partial discharge test is performed, and the shield plays a role in a capacitive screen for partial discharge measurement.
Preferably, the operating handle rotates to drive the operating rod, the gear set and the ball screw, so that the second conducting rod stretches out and recovers, and the test sleeve is connected with and disconnected from the oil-SF 6 sleeve and the circuit of the transformer.
Preferably, after the second conductive rod extends out, the head of the second conductive rod is inserted into the contact seat head to be contacted with the second contact finger, and then the test sleeve is electrically connected with the oil-SF 6 sleeve and the transformer.
The beneficial effects of the utility model are as follows:
1. according to the utility model, through the cooperation of structures such as the lifting seat, the oil-SF 6 sleeve, the test lifting seat, the test sleeve, the disconnecting switch and the contact seat, when the transformer with the oil-SF 6 sleeve is tested in a factory, the test device can meet the requirement of filling SF6 and meeting the gas sealing, when the test is performed, the capacitor screen on the test sleeve in the device is connected to the partial discharge monitoring loop, whether the partial discharge of the transformer sleeve or the partial discharge of the transformer can be accurately judged, the connection and disconnection of the test circuit can be realized under the condition that the test device is not disassembled, and after the test device is disconnected, the disconnection part can meet the insulation requirement of an electrical test, so that the test efficiency of the factory is greatly improved.
2. According to the utility model, through the cooperation of structures such as the lifting seat, the oil-SF 6 sleeve, the test lifting seat, the test sleeve, the cut-off switch and the touch seat, in the electrical test of the transformer with the oil-SF 6 sleeve for voltage class above 220kV, the pressurizing requirement in the oil-SF 6 sleeve test is functionally realized, the device can be used for monitoring the local amplification of the transformer, the switching function of circuits in various test states can be realized, and the insulating requirement in the high-voltage state in the test process is met.
Drawings
FIG. 1 is a schematic diagram of a front view structure of a high-efficiency test device for transformer oil-SF 6 bushing interfaces;
FIG. 2 is a schematic diagram of a side view structure of a high-efficiency testing device for transformer oil-SF 6 bushing interfaces;
FIG. 3 is a schematic diagram of a side view cross-section structure of a transformer oil-SF 6 bushing interface high-efficiency test device and a state that a test bushing is disconnected from a transformer circuit;
fig. 4 is a schematic diagram of a side view cross-section structure of a high-efficiency testing device for transformer oil-SF 6 bushing interfaces and a schematic diagram of a state of connection between a testing bushing and a transformer circuit.
In the figure: 1. a first elevation seat; 2. an oil-SF 6 casing; 201. a first lead; 202. an interface; 203. a first pressure equalizing ball; 204. a second pressure equalizing ball; 3. a test lifting seat; 301. a manhole; 302. a pressure discharge device; 4. a test sleeve; 401. a transfer lifting seat; 402. shielding; 4021. a second lead; 403. testing the tap; 404. a first conductive rod; 405. a pressure gauge; 406. equalizing rings; 407. a terminal plate; 5. cutting off the switch; 501. an operation handle; 502. a joystick; 503. a gear set; 504. a conductive head; 505. a second conductive rod; 5051. a ball screw; 506. the first contact finger; 507. a third pressure equalizing ball; 6. a touch seat; 601. a flange; 602. a contact head; 6021. the second contact finger; 603. and a third conductive rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1 to 4, in the embodiment of the utility model, a high-efficiency test device for a transformer oil-SF 6 sleeve interface comprises an experimental device, wherein the experimental device comprises a test lifting seat 3, a test sleeve 4, a disconnecting switch 5 and a touch seat 6;
the kit comprises a first lifting seat 1 and an oil-SF 6 sleeve 2;
the oil-SF 6 sleeve 2 comprises a first lead 201, an interface 202, a first equalizing ball 203 and a second equalizing ball 204, wherein the first lead 201 is arranged at the lower part of the oil-SF 6 sleeve 2, the interface 202 is arranged at the upper part of the oil-SF 6 sleeve 2, the first equalizing ball 203 is arranged inside the lower part of the oil-SF 6 sleeve 2, and the second equalizing ball 204 is arranged inside the upper part of the oil-SF 6 sleeve 2;
the surface of the test lifting seat 3 is provided with a manhole 301 and a pressure discharge device 302 from top to bottom;
the lower end of the test sleeve 4 is provided with a switching lifting seat 401, a shielding 402 is arranged on a flange at the upper part of the switching lifting seat 401, the shielding 402 is fixedly connected with the switching lifting seat 401 through an insulating bolt, a pressure gauge 405 and a test tap 403 are symmetrically arranged outside the surface of the switching lifting seat 401 left and right, a second lead 4021 is arranged between the shielding 402 and the test tap 403, a first conducting rod 404 is movably arranged inside the test sleeve 4, the shielding 402 and the outer side of the first conducting rod 404 are coaxially arranged, a third equalizing ring 406 is movably arranged on the surface of the top of the upper end of the test sleeve 4, a terminal plate 407 is movably arranged at the top of the upper end of the test sleeve 4, and the terminal plate 407 is electrically connected with external test equipment;
the disconnecting switch 5 comprises an operating handle 501, an operating rod 502, a gear set 503, a conductive head 504, a second conductive rod 505, a ball screw 5051, a first contact finger 506 and a third pressure equalizing ball 507, wherein the conductive head 504 is arranged in the upper end of the test lifting seat 3, the second conductive rod 505 and the first contact finger 506 are arranged in the conductive head 504, the conductive head 504 and the second conductive rod 505 are electrically connected through the first contact finger 506, the ball screw 5051 is arranged in the second conductive rod 505, the gear set 503 is arranged at the upper end of the ball screw 5051, the left end of the operating rod 502 is movably connected with the gear set 503, the operating handle 501 is fixedly arranged at the top of the other end of the operating rod 502, the upper end of the conductive head 504 is in flange connection with the first conductive rod 404, and the third pressure equalizing ball 507 is arranged at the connecting position of the upper end of the conductive head 504;
the contact seat 6 comprises a flange 601, a contact seat head 602 and a third conducting rod 603, the contact seat head 602, the third conducting rod 603 and the flange 601 are connected in a welding mode from top to bottom, a groove is formed in the contact seat head 602, and a second contact finger 6021 is inlaid in the groove.
The working principle and beneficial effects of the technical scheme are as follows: when the oil-SF 6 testing device is used, the operating handle 501 is rotated to drive the operating rod 502, the gear set 503 and the ball screw 5051 to rotate together, and then the extending and recovering movement of the second conducting rod 505 is controlled, so that whether the head of the second conducting rod 505 is inserted into the contact base head 602 or not is controlled, and whether the head of the second conducting rod is contacted with the second contact finger 6021 inside the contact base head 602 or not is controlled, and the circuit connection and disconnection of the testing sleeve 4, the oil-SF 6 sleeve 2 and the transformer are controlled.
As shown in fig. 1 and 2, in one embodiment, the inside of the first lifting seat 1 is filled with transformer oil, the first lifting seat 1 is mechanically connected with a transformer, the upper part of the oil-SF 6 sleeve 2 is connected with a flange 601 of the contact seat 6 through an interface 202, the lower part of the oil-SF 6 sleeve 2 is electrically connected with the transformer through a first lead 201, the test lifting seat 3 and the oil-SF 6 sleeve 2 are connected and sealed through a flange interface, and the lower part of the oil-SF 6 sleeve 2 is connected with the first lifting seat 1 through a flange interface.
The working principle and beneficial effects of the technical scheme are as follows: when the oil-SF 6 bushing is used, the first lifting seat 1 is mechanically connected with a transformer, then the lower part of the oil-SF 6 bushing 2 is connected with the first lifting seat 1 through a flange interface, meanwhile, the electric connection with the transformer is realized through the first lead 201, then the test lifting seat 3 and the oil-SF 6 bushing 2 are connected and sealed through the flange interface, and meanwhile, the upper part of the oil-SF 6 bushing 2 is connected with the flange 601 of the contact seat 6 through the interface 202, so that basic assembly is completed.
As shown in fig. 1 and 2, in one embodiment, the test socket 3 and the test sleeve 4 are main components outside the test device, the test socket 3 and the test sleeve 4 are connected through the adaptor socket 401, and are connected and sealed with each other by adopting a flange interface, and the inside is filled with SF6 gas.
The working principle and beneficial effects of the technical scheme are as follows: when the arc extinguishing insulating device is used, the test lifting seat 3 is in flange connection with the switching lifting seat 401 at the bottom of the test sleeve 4, so that the sealing performance is better, SF6 gas is filled in the test lifting seat 3 and the test sleeve 4, and the arc extinguishing insulating effect is achieved.
As shown in fig. 2, 3 and 4, in one embodiment, the test tap 403 is grounded when performing a high voltage test, i.e., the shield 402 is grounded, to act as a uniform electric field, and when performing a partial discharge test, the test tap 403 is led out, at which time the shield 402 acts as a capacitive screen for partial discharge measurement.
The working principle and beneficial effects of the technical scheme are as follows: when high voltage experiment is carried out, the test tap 403 is grounded to play a role of grounding shielding, and when partial discharge experiment is carried out, the test tap 403 is required to be led out, at this time, the shielding 402 plays a role of a capacitive screen, so that the leading number of the test tap 403 is transmitted to a partial discharge monitoring device, and whether the partial discharge of the sleeve or the partial discharge of the transformer is indirectly detected.
As shown in fig. 3 and 4, in one embodiment, the operation handle 501 rotates to drive the operation rod 502, the gear set 503 and the ball screw 5051, so as to extend and retract the second conductive rod 505, and thus, to connect and disconnect the test sleeve 4 with the oil-SF 6 sleeve 2 and the electric circuit of the transformer.
The working principle and beneficial effects of the technical scheme are as follows: when the oil-SF 6 bushing 2 is used, the operating handle 501 is rotated to drive the operating rod 502, the gear set 503 and the ball screw 5051 to rotate together, so that the extending and recovering movement of the second conducting rod 505 is controlled, and the circuit connection and disconnection of the test bushing 4, the oil-SF 6 bushing 2 and the transformer are controlled.
As shown in fig. 3 and 4, in one embodiment, after the second conductive rod 505 is extended, the head of the second conductive rod 505 is inserted into the contact base 602 to contact with the second contact finger 6021, and then the test sleeve 4 is electrically connected to the oil-SF 6 sleeve 2 and the transformer.
The working principle and beneficial effects of the technical scheme are as follows: when in use, the second conductive rod 505 extends out, so that the head of the second conductive rod is inserted into the contact base head 602 and is in contact with the second contact finger 6021 inside the contact base head 602, thereby realizing the electric connection between the test sleeve 4 and the oil-SF 6 sleeve 2 as well as between the test sleeve and the transformer.
Working principle and using flow:
when a test is carried out, an SF 6-air outlet sleeve/test sleeve 4 is adopted as a test pressurizing sleeve, then the test sleeve 4 is connected with an oil-SF 6 sleeve 2 of a transformer in series, and when a factory test is carried out, current is loaded to the transformer through the oil-SF 6 sleeve 2, so that the insulation reliability of the sleeve can be verified when the test is carried out, and the SF 6-air outlet sleeve/test sleeve 4 has the characteristics of simple structure, low cost, convenience in maintenance and the like;
meanwhile, a capacitive screen designed in the test device is led out through the test tap 403, when a factory test is carried out, the leading number of the test tap 403 can be transmitted to the partial discharge monitoring device for judging whether the sleeve is partially discharged or not, the device is further provided with a cut-off switch 5, the cut-off switch 5 can connect and cut off the SF 6-air sleeve outlet sleeve/test sleeve 4 and the oil-SF 6 sleeve 2, and the sleeves are connected or cut off according to the requirements of different test projects, so that equipment is not required to be disassembled and assembled in the test process, and the test efficiency is improved;
the specific operation steps are as follows: by rotating the operating handle 501, the operating lever 502, the gear set 503 and the ball screw 5051 are driven to rotate together, and then the extending and retracting movement of the second conductive rod 505 is controlled, so that whether the head of the second conductive rod 505 is inserted into the contact base head 602 or not and whether the head is in contact with the second contact finger 6021 inside the contact base head 602 is controlled, and the circuit connection and disconnection of the test sleeve 4, the oil-SF 6 sleeve 2 and the transformer are controlled.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a transformer oil-SF 6 sleeve pipe interface high-efficient test device, includes experimental apparatus, its characterized in that: the test device comprises a test lifting seat (3), a test sleeve (4), a disconnecting switch (5) and a touch seat (6) and matched components thereof;
the kit comprises a first lifting seat (1) and an oil-SF 6 sleeve (2);
the oil-SF 6 sleeve (2) comprises a first lead (201), an interface (202), a first pressure equalizing ball (203) and a second pressure equalizing ball (204), wherein the first lead (201) is arranged at the lower part of the oil-SF 6 sleeve (2), the interface (202) is arranged at the upper part of the oil-SF 6 sleeve (2), the first pressure equalizing ball (203) is placed in the lower part of the oil-SF 6 sleeve (2), and the second pressure equalizing ball (204) is placed in the upper part of the oil-SF 6 sleeve (2);
the surface of the test lifting seat (3) is provided with a manhole (301) and a pressure discharge device (302) from top to bottom;
the test sleeve (4) is characterized in that a switching lifting seat (401) is arranged at the lower end of the test sleeve (4), a shield (402) is arranged on a flange at the upper part of the switching lifting seat (401), the shield (402) is fixedly connected with the switching lifting seat (401) through an insulating bolt, a pressure gauge (405) and a test tap (403) are symmetrically arranged outside the surface of the switching lifting seat (401), a second lead wire (4021) is arranged between the shield (402) and the test tap (403), a first conducting rod (404) is movably arranged in the test sleeve (4), the shield (402) and the outer side of the first conducting rod (404) are coaxially arranged, a third equalizing ring (406) is movably arranged on the surface of the top of the upper end of the test sleeve (4), a terminal plate (407) is movably arranged at the top of the upper end of the test sleeve, and the terminal plate (407) is electrically connected with external test equipment;
the disconnecting switch (5) comprises an operating handle (501), an operating rod (502), a gear set (503), a conducting head (504), a second conducting rod (505), a ball screw (5051), a first contact finger (506) and a third pressure equalizing ball (507), wherein the conducting head (504) is arranged in the upper end of the test lifting seat (3), the second conducting rod (505) and the first contact finger (506) are arranged in the conducting head (504), the conducting head (504) and the second conducting rod (505) are electrically connected through the first contact finger (506), the ball screw (5051) is arranged in the second conducting rod (505), the gear set (503) is arranged at the upper end of the ball screw (5051), the left end of the operating rod (502) is movably connected with the gear set (503), the operating handle (501) is fixedly arranged at the top of the other end of the operating rod (502), the upper end of the conducting head (504) is connected with the first conducting rod (404) through the first contact finger (506), and the third contact ball (507) is arranged at the pressure equalizing end of the conducting head (504);
the touch seat (6) comprises a flange (601), a touch seat head (602) and a third conducting rod (603), the touch seat head (602), the third conducting rod (603) and the flange (601) are connected in a welding mode from top to bottom, a groove is formed in the touch seat head (602), and a second touch finger (6021) is inlaid in the groove.
2. The efficient testing device for transformer oil-SF 6 bushing interfaces according to claim 1, wherein: the transformer oil is filled in the first lifting seat (1), and the first lifting seat (1) is mechanically connected with the transformer.
3. The efficient testing device for transformer oil-SF 6 bushing interfaces according to claim 1, wherein: the upper part of the oil-SF 6 sleeve (2) is connected with a flange (601) of the touch seat (6) through an interface (202), and the lower part of the oil-SF 6 sleeve (2) is electrically connected with the transformer through a first lead (201).
4. The efficient testing device for transformer oil-SF 6 bushing interfaces according to claim 1, wherein: the test lifting seat (3) is connected with the oil-SF 6 sleeve (2) through a flange interface and is sealed, and the lower part of the oil-SF 6 sleeve (2) is connected with the first lifting seat (1) through the flange interface.
5. The efficient testing device for transformer oil-SF 6 bushing interfaces according to claim 1, wherein: the test lifting seat (3) and the test sleeve (4) are main components outside the test device, the test lifting seat (3) and the test sleeve (4) are connected through the switching lifting seat (401), are connected and sealed by adopting flange interfaces, and are filled with SF6 gas.
6. The efficient testing device for transformer oil-SF 6 bushing interfaces according to claim 1, wherein: the test tap (403) is grounded when a high-voltage test is performed, namely the shield (402) is grounded to play a role of uniform electric field, and when a partial discharge test is performed, the test tap (403) is led out, and the shield (402) plays a role of a capacitive screen at the moment and is used for partial discharge measurement.
7. The efficient testing device for transformer oil-SF 6 bushing interfaces according to claim 1, wherein: the operating handle (501) rotates and drives the operating rod (502), the gear set (503) and the ball screw (5051) to extend and retract the second conducting rod (505), so that the circuit connection and disconnection of the test sleeve (4) with the oil-SF 6 sleeve (2) and the transformer are realized.
8. The efficient testing device for transformer oil-SF 6 bushing interfaces according to claim 1, wherein: after the second conducting rod (505) stretches out, the head of the second conducting rod (505) is inserted into the contact seat head (602) to be contacted with the second contact finger (6021), and the test sleeve (4) is electrically connected with the oil-SF 6 sleeve (2) and the transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223510555.XU CN219475758U (en) | 2022-12-28 | 2022-12-28 | Transformer oil-SF 6 sleeve joint high-efficiency test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223510555.XU CN219475758U (en) | 2022-12-28 | 2022-12-28 | Transformer oil-SF 6 sleeve joint high-efficiency test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219475758U true CN219475758U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223510555.XU Active CN219475758U (en) | 2022-12-28 | 2022-12-28 | Transformer oil-SF 6 sleeve joint high-efficiency test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219475758U (en) |
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2022
- 2022-12-28 CN CN202223510555.XU patent/CN219475758U/en active Active
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Address after: No. 86, Longjiang Middle Road, Changzhou City, Jiangsu Province, 213012 Patentee after: Shandong Electric Group Changzhou Dongzhi Transformer Co.,Ltd. Country or region after: China Address before: No. 86, Longjiang Middle Road, Changzhou City, Jiangsu Province, 213012 Patentee before: CHANGZHOU TOSHIBA TRANSFORMER Co.,Ltd. Country or region before: China |
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