CN104991095B - A kind of transformer test wiring fexible unit - Google Patents

A kind of transformer test wiring fexible unit Download PDF

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Publication number
CN104991095B
CN104991095B CN201510456721.8A CN201510456721A CN104991095B CN 104991095 B CN104991095 B CN 104991095B CN 201510456721 A CN201510456721 A CN 201510456721A CN 104991095 B CN104991095 B CN 104991095B
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China
Prior art keywords
wire box
transformer
wire
socket
fexible unit
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Application number
CN201510456721.8A
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Chinese (zh)
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CN104991095A (en
Inventor
鲍巧敏
马涛
徐建文
张雪莉
许杰
陈超
厉律阳
杨帆
李旭东
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State Grid Corp of China SGCC
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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State Grid Corp of China SGCC
Hangzhou Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
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Priority to CN201510456721.8A priority Critical patent/CN104991095B/en
Publication of CN104991095A publication Critical patent/CN104991095A/en
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Abstract

The invention discloses a kind of transformer test wiring fexible units, for transformer is tested, it include the experiment cable for connection test circuit, one end of the experiment cable is provided with wire box plug (3), the other end is provided with wire clamp plug (4), further include fixing clamper and integrated wire box, the wire clamp socket (6) for being connected to the wire clamp plug (4) and the clamping device (5) for being detachably connected with bushing shell for transformer are provided on the fixing clamper, the wire box socket (1) for being connected to the wire box plug (3) and the Current Voltage terminal (2) for being connected to conventional detection instrument are provided in the integrated wire box, the wire box socket (1) is connected to the Current Voltage terminal (2).The disposable wiring at bushing shell for transformer can be completed in transformer test, reduced to ascend a height and replaced the number of wiring, and then improve working efficiency and eliminate safe hidden trouble.

Description

A kind of transformer test wiring fexible unit
Technical field
The present invention relates to transformer test fields, more particularly to a kind of transformer test wiring fexible unit.
Background technology
Transformer is a kind of electric equipments in electric system, is regularly tested it and maintenance is to become electric-examination One of groundwork repaiied.However there is no the experiment cable dedicated for transformer test, the line used in testing ground Cable is the test wire that instrument itself carries.And the test wire of every instrument only takes into account the requirement of this experiment, such as thickness, length It is short, whether band shielding etc., and do not consider transformer particularity.
When carrying out transformer test using existing equipment, part test needs the repeatedly more changing-over at bushing shell for transformer Line, and replace be required for being operated using raising ladder arrival transformer top every time.It frequently ascends a height and replaces cable, can expend big The working time of amount reduces working efficiency, and there are the security risks such as fall and get an electric shock.
Therefore, a kind of transformer test wiring fexible unit how is provided, for completing transformer in transformer test Disposable wiring at casing reduces to ascend a height and replaces the number of wiring, and then it is this to improve working efficiency and eliminate safe hidden trouble The current technical issues that need to address of field technology personnel.
Invention content
The object of the present invention is to provide a kind of transformer test wiring fexible units, become for being completed in transformer test Disposable wiring at depressor casing reduces to ascend a height and replaces the number of wiring, and then improves working efficiency and eliminate safe hidden trouble.
In order to solve the above technical problems, the present invention provides a kind of transformer test wiring fexible unit, for transformer examination It tests, includes the experiment cable for connection test circuit, one end of the experiment cable is provided with wire box plug, other end setting There is wire clamp plug, further include fixing clamper and integrated wire box, is provided on the fixing clamper for connecting with the wire clamp plug Logical wire clamp socket and the clamping device for being detachably connected with bushing shell for transformer, be provided in the integrated wire box for The wire box socket of the wire box plug connection and the Current Voltage terminal for being connected to conventional detection instrument, the wire box socket It is connected to the Current Voltage terminal.
Preferably, the experiment cable includes single-core shielding line, the package single-core shielding line connected for signal The rubber sheath of silicone insulation layer, the external shielding layer of the package silicone insulation layer and the package external shielding layer, the external screen Layer is covered to connect with the internal shield box of the integrated wire box.
Preferably, the wire box plug is specially two core aviation plugs, and the wire box socket is specially two core aviation sockets, The wire clamp plug is specially three core aviation plugs, and the wire clamp socket is specially three core aviation sockets.
Preferably, the clamping device of the fixing clamper is specially crocodile clip, and the head of the crocodile clip can press from both sides The tight bushing shell for transformer is provided with wire clamp socket on the crocodile clip.
Preferably, two clamp arm on the crocodile clip head are respectively arranged with semicircle aluminium ring, and the one of the semicircle aluminium ring End is connect with a clamp arm on the crocodile clip head, and the other end can connect with the end of the semicircle aluminium ring in another clamp arm It touches, the semicircle aluminium ring in two clamp arm can be closed and entirely around the bushing shell for transformer.
Preferably, the fixation bandage for being fixedly connected with the experiment cable or fixation are provided at the wire clamp socket Hook.
Preferably, it is provided in the insulation plate face of the integrated wire box and draws for connecting the loaded switch power supply of external power supply Enter connector and the loaded switch switching push button for controlling gear lifting.
Preferably, on the insulating panel of the integrated wire box include high-voltage winding region, middle pressure winding area and low pressure around Group region, the multiple wire box sockets and multiple Current Voltage terminals being set in the integrated wire box are distributed in above-mentioned Three regions.
Preferably, each region in the high-voltage winding region and the medium pressure winding area regions Liang Ge is both provided with Four wire box sockets and eight Current Voltage terminals, there are three the wire box sockets for the low pressure winding region setting With six Current Voltage terminals, and each region in above three region be both provided with shield terminal and be used for short circuit four The change-over switch of a Current Voltage terminal.
Preferably, the integrated wire box further includes the control circuit for automatically switching the mode of connection, the control circuit It is connected to the wire box socket and the Current Voltage terminal.
Transformer test wiring fexible unit provided by the invention, for transformer experiment, including experiment cable, fixing line Folder and integrated wire box, wherein experiment cable one end be stably connected with by fixing clamper and bushing shell for transformer, the other end with integrate Wire box socket connection in wire box, integrates the Current Voltage terminal being additionally provided in wire box for being connected to conventional detection instrument, And wire box socket is connected to Current Voltage terminal by integrating the internal structure of wire box.It is primary at bushing shell for transformer when experiment Property complete wiring, and current and voltage signals are introduced directly into integrated wire box by testing cable, then pass through Current Voltage terminal The mode of communicating different from conventional detection instrument, you can carry out a variety of experiments, avoid repeatedly ascending a height and replace wiring, and then improve work Make efficiency and eliminates safe hidden trouble.
Description of the drawings
Fig. 1 is a kind of specific implementation mode of the integrated wire box of transformer test wiring fexible unit provided by the present invention Structural schematic diagram;
Fig. 2 is a kind of specific implementation mode of the experiment cable of transformer test wiring fexible unit provided by the present invention Structural schematic diagram;
Fig. 3 is a kind of specific implementation mode of the fixing clamper of transformer test wiring fexible unit provided by the present invention Structural schematic diagram;
Fig. 4 is another specific embodiment party of the fixing clamper of transformer test wiring fexible unit provided by the present invention The structural schematic diagram of formula.
Specific implementation mode
Core of the invention is to provide a kind of transformer test wiring fexible unit, becomes for being completed in transformer test Disposable wiring at depressor casing reduces to ascend a height and replaces the number of wiring, and then improves working efficiency and eliminate safe hidden trouble.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description The present invention is described in further detail.
It is the integrated wire box of transformer test wiring fexible unit provided by the present invention to please refer to Fig.1 to Fig. 4, Fig. 1 A kind of structural schematic diagram of specific implementation mode;Fig. 2 is the experiment of transformer test wiring fexible unit provided by the present invention A kind of structural schematic diagram of specific implementation mode of cable;Fig. 3 is transformer test wiring fexible unit provided by the present invention Fixing clamper a kind of specific implementation mode structural schematic diagram;Fig. 4 is logical for transformer test wiring provided by the present invention With the structural schematic diagram of another specific implementation mode of the fixing clamper of device.
The transformer test wiring fexible unit that the specific embodiment of the invention provides, for transformer experiment, including examination Test cable, fixing clamper and integrated wire box.Wherein, it integrates in wire box and is provided with wire box socket 1 and Current Voltage terminal 2, and line Box socket 1 is connected to Current Voltage terminal 2, and the one end for testing cable is provided with wire box plug 3, and the other end is provided with wire clamp plug 4, fixing clamper includes clamping device 5 and wire clamp socket 6.
When preparing experiment, wire clamp socket 6 is connected to wire clamp plug 4, the clamping that can be detachably connected with bushing shell for transformer Device 5 is stably connected with bushing shell for transformer, and the wire box plug 3 of the experiment cable other end is connected to wire box socket 1, conventional detection instrument Device is connected to Current Voltage terminal 2.
When experiment, wiring is disposably completed at bushing shell for transformer, and by testing cable that current and voltage signals are direct It is introduced into integrated wire box, then passes through the mode of communicating different from conventional detection instrument of Current Voltage terminal 2, you can carry out a variety of examinations It tests, avoids repeatedly ascending a height and replace wiring, and then improve working efficiency and eliminate safe hidden trouble.
In the transformer test wiring fexible unit that the specific embodiment of the invention provides, experiment cable can have more Kind structure type, may include single-core shielding line, silicone insulation layer, external shielding layer and rubber sheath.Single in above-mentioned each structure Shielding line is located at penetralia, and each layer wraps up successively, forms the experiment cable with shielding insulation effect.Wherein single-core shielding line is used It is connected in signal, external shielding layer connect with the internal shield box of integrated wire box, can be used for shielding when dielectric loss and insulation resistance test Leakage current.By the way that multilayered structure is arranged, is shielded by external shielding layer, ensure that testing result is accurate, pass through silicone insulation Layer insulate, and ensures work safety, can also be not configured to multilayered structure, or only setting unit structure sheaf, can also part be made to try It tests and is smoothed out, within protection scope of the present invention.
In the transformer test wiring fexible unit that the specific embodiment of the invention provides, the both ends needs of cable are tested It is connect with fixing clamper and integrated wire box, specifically, wire box plug 3 can be two core aviation plugs, and wire box socket 1 can be Two core aviation sockets, wire clamp plug 4 can be three core aviation plugs, and wire clamp socket 6 can be three core aviation sockets.Use aviation Plug coordinates with aviation socket, and it is more preferable to connect more stable and signal transmission effect, it is possible to use other connection types, such as other classes The plug and socket of type, or the core number of aviation plug is adjusted according to the needs of actual conditions, as long as ensureing transformer test wiring The normal operation of fexible unit, within protection scope of the present invention.
In the transformer test wiring fexible unit that the specific embodiment of the invention provides, clamping device 5 can be specific Head for crocodile clip, crocodile clip can clamp bushing shell for transformer, and wire clamp socket 6 is provided on crocodile clip.Using experiment In common crocodile clip as clamping device 5, be easy to make, clamping process facilitates and easy to disassemble, and other types can also be used Clamping device 5, as long as ensure be stably connected with, within protection scope of the present invention.
When using crocodile clip as clamping device 5, semicircle aluminium can be respectively set in two clamp arm on crocodile clip head Ring 7, one end of semicircle aluminium ring 7 are connect with a clamp arm on crocodile clip head, and the other end can be with the semicircle in another clamp arm The end of shape aluminium ring 7 contacts, and the semicircle aluminium ring 7 in two clamp arm can be closed and entirely around bushing shell for transformer.By setting The semicircle aluminium ring 7 of arc is set, the distribution of electric field is tested when improving high pressure, realizes uniform voltage function, and can prevent crocodile clip from falling It falls, can also be not provided with semicircle aluminium ring 7, also within protection scope of the present invention.
In order to further consolidate the connection between wire clamp socket 6 and experiment cable, it can be arranged at wire clamp socket 6 and be used for It is fixedly connected with the fixation bandage or stay hook of experiment cable, may also set up other fixing devices, such as fixed card buckle, as long as ensureing steady Fixed connection, within protection scope of the present invention.
The transformer test wiring fexible unit that another specific implementation mode of the present invention provides, provides another folder Tight device 5, including voltage pole 10, electric current pole 8, clamping screw 9 and acting clamping wrench 11.Wherein voltage pole 10 includes crossbeam and setting Electric current pole 8 and wire clamp socket 6 are arranged on a side arm, is provided with and clamps on another side arm for side arm in crossbeam both ends The threaded hole that screw rod 9 coordinates, the position of threaded hole is corresponding with the position of electric current pole 8, and one end of clamping screw 9 is equipped with vertically The acting clamping wrench 11 of setting, the serrated face that the other end of clamping screw 9 can pass through threaded hole and be adjacent to electric current pole 8.When installation, Pull acting clamping wrench 11, clamping screw 9 made to rotate outward, far from electric current pole 8, apart from it is suitable when, reversely pull acting clamping wrench 11, So that clamping screw 9 is rotated inward, close to electric current pole 8, clamps bushing shell for transformer.Wherein voltage pole 10 and electric current pole 8 can be used for surveying Voltage and current wiring is provided when amount.In this way, it is applicable to the bushing shell for transformer of various different-diameters, and connects jail Gu being not easy to fall, the clamping mode of other forms can also be used, as long as ensureing to be stably connected with, in protection scope of the present invention Within.
It, can be in the exhausted of integrated wire box in the transformer test wiring fexible unit that the specific embodiment of the invention provides On edge panel setting for connect external power supply loaded switch power supply introduce connector 14 and for control gear lifting have load Switching button 15 is for progress main transformer D.C. resistance test.Three loaded switch power supplys can be set and introduce connector 14, in Between be negative polarity end, upper and lower two interfaces respectively by the loaded switch switching push button 15 on side control gear lifting.In integrated line Load ratio bridging switch gear switch is controlled at box, without arranging special messenger to switch gear at the control cabinet of load ratio bridging switch, is carried High working efficiency, can also be not provided with load switch power supply and introduce connector 14 and loaded switch switching push button 15, also in the present invention Protection domain within.In the transformer test wiring fexible unit that above-mentioned each specific implementation mode provides, in order into High-voltage winding region, middle pressure winding area and low pressure can be arranged on the insulating panel of integrated wire box in a greater variety of experiments of row Winding area, and it is provided with the multiple wire box sockets 1 and multiple Current Voltage terminals 2 for being distributed in above three region.Pass through area Different groupings is distinguished in domain, the connection of cable when convenient for testing, and the grafting step in short form test improves working efficiency, It can be not provided with being grouped, as long as the accuracy of guarantee test result, within protection scope of the present invention.
In order to be further simplified grafting step, each region in high-voltage winding region and the middle pressure winding area regions Liang Ge Wire box socket 1 and eight Current Voltage terminals 2 there are four being respectively provided with, there are three wire box sockets 1 and six for the setting of low pressure winding region A Current Voltage terminal 2, and be respectively provided with shield terminal 13 in each region and turn for four Current Voltage terminals of short circuit Change switch 12.By the above-mentioned each device of setting, transformer test wiring fexible unit is enable to be suitable for a greater variety of experiments, Also it can be not provided with above-mentioned each device, or part is arranged, or adjusts the quantity of each device, within protection scope of the present invention. And the word of the insulating panel top setting in integrated wire box, label is made for region division, the word shown on nameplate plays Suggesting effect is word intrinsic in equipment.
In order to be further simplified operation, control circuit, control circuit and wire box socket 1 can be set inside integrated wire box And Current Voltage terminal 2 is connected to, and the mode of connection can be automatically switched according to the needs of actual conditions, the examination directly needed It tests, can also be not provided with control circuit, also within protection scope of the present invention.
Transformer test wiring fexible unit provided by the present invention is described in detail above.It is used herein Principle and implementation of the present invention are described for specific case, and the explanation of above example is only intended to help to understand this The method and its core concept of invention.It should be pointed out that for those skilled in the art, not departing from this hair , can be with several improvements and modifications are made to the present invention under the premise of bright principle, these improvement and modification also fall into power of the present invention In the protection domain that profit requires.

Claims (10)

1. a kind of transformer test wiring fexible unit, for transformer experiment, include the test wire for connection test circuit One end of cable, the experiment cable is provided with wire box plug (3), and the other end is provided with wire clamp plug (4), which is characterized in that also Including fixing clamper and integrated wire box, it is provided with the wire clamp for being connected to the wire clamp plug (4) on the fixing clamper and inserts Seat (6) and the clamping device (5) for being detachably connected with bushing shell for transformer, be provided in the integrated wire box for it is described The wire box socket (1) of wire box plug (3) connection and the Current Voltage terminal (2) for being connected to conventional detection instrument, the line Box socket (1) is connected to the Current Voltage terminal (2);
The clamping device (5) includes voltage pole (10), electric current pole (8), clamping screw (9) and acting clamping wrench (11), the electricity Pressure pole (10) includes crossbeam and is set to the side arm at the crossbeam both ends, and the electric current pole (8) is arranged on a side arm With the wire clamp socket (6), the threaded hole coordinated with the clamping screw (9), the spiral shell are provided on another described side arm The position of pit is corresponding with the position of electric current pole (8), and one end of the clamping screw (9) is equipped with vertically disposed institute Acting clamping wrench (11) is stated, the other end of the clamping screw (9) can pass through the threaded hole and be adjacent to the electric current pole (8) Serrated face.
2. transformer test wiring fexible unit according to claim 1, which is characterized in that the experiment cable includes using In the single-core shielding line of signal connection, the silicone insulation layer of the package single-core shielding line, the package silicone insulation layer it is outer Shielded layer and the rubber sheath for wrapping up the external shielding layer, the external shielding layer and the internal shield box of the integrated wire box connect It connects.
3. transformer test wiring fexible unit according to claim 1, which is characterized in that wire box plug (3) tool Body is two core aviation plugs, and the wire box socket (1) is specially two core aviation sockets, and the wire clamp plug (4) is specially three cores Aviation plug, the wire clamp socket (6) are specially three core aviation sockets.
4. transformer test wiring fexible unit according to claim 1, which is characterized in that the fixing clamper it is described Clamping device (5) is specially crocodile clip, and the head of the crocodile clip can clamp the bushing shell for transformer, be set on the crocodile clip It is equipped with wire clamp socket (6).
5. transformer test wiring fexible unit according to claim 4, which is characterized in that the two of the crocodile clip head Clamp arm is respectively arranged with semicircle aluminium ring (7), a clamp arm of one end and the crocodile clip head of the semicircle aluminium ring (7) Connection, the other end can be contacted with the end of the semicircle aluminium ring (7) in another clamp arm, the semicircle in two clamp arm Shape aluminium ring (7) can be closed and entirely around the bushing shell for transformer.
6. transformer test wiring fexible unit according to claim 5, which is characterized in that at the wire clamp socket (6) It is provided with the fixation bandage or stay hook for being fixedly connected with the experiment cable.
7. transformer test wiring fexible unit according to claim 1, which is characterized in that the insulation of the integrated wire box It is provided with the loaded switch power supply for connecting external power supply in plate face and introduces connector (14) and for controlling having for gear lifting Load switch switching push button (15).
8. the transformer test wiring fexible unit according to claim 1 to 7 any one, which is characterized in that the collection At including high-voltage winding region, middle pressure winding area and low pressure winding region on the insulating panel of wire box, it is set to described integrated Multiple wire box sockets (1) and multiple Current Voltage terminals (2) in wire box are distributed in above three region.
9. transformer test wiring fexible unit according to claim 8, which is characterized in that the high-voltage winding region and Each region in the regions Liang Ge of medium pressure winding area is respectively provided with there are four the wire box socket (1) and eight electric currents Voltage terminal (2), there are three the wire box socket (1) and six Current Voltage terminals for the low pressure winding region setting (2), each region and in above three region is both provided with shield terminal (13) and is used for four Current Voltages of short circuit The change-over switch (12) of terminal (2).
10. transformer test wiring fexible unit according to claim 9, which is characterized in that the integrated wire box is also wrapped Include the control circuit for automatically switching the mode of connection, the control circuit and the wire box socket (1) and the Current Voltage Terminal (2) is connected to.
CN201510456721.8A 2015-07-29 2015-07-29 A kind of transformer test wiring fexible unit Active CN104991095B (en)

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JP2008216161A (en) * 2007-03-07 2008-09-18 Tokyo Electric Power Co Inc:The High pressure terminal block for transformation apparatus test
CN201788197U (en) * 2010-05-20 2011-04-06 江西省电力科学研究院 Connection device of three-phase voltage transformer calibrator and test wire
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