CN204155693U - Transformer Bushing Tap ejector - Google Patents
Transformer Bushing Tap ejector Download PDFInfo
- Publication number
- CN204155693U CN204155693U CN201420594717.9U CN201420594717U CN204155693U CN 204155693 U CN204155693 U CN 204155693U CN 201420594717 U CN201420594717 U CN 201420594717U CN 204155693 U CN204155693 U CN 204155693U
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- lead division
- transformer
- leading
- tap
- bushing tap
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- 230000011664 signaling Effects 0.000 claims abstract description 18
- 230000001012 protector Effects 0.000 claims description 11
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 240000005561 Musa balbisiana Species 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 12
- 238000009413 insulation Methods 0.000 description 8
- 230000000994 depressogenic effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 241000234295 Musa Species 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Abstract
A kind of Transformer Bushing Tap ejector, leads to signal cable for coordinating with bushing shell for transformer by the end shield ground signalling on the end shield guide rod in bushing shell for transformer; The end shield guide rod of bushing shell for transformer protrudes from the side of end shield tap, and Transformer Bushing Tap ejector comprises: base, and comprise first end, the second end and run through the through hole of first end and the second end, first end is connected with bottom shielding of bushing tap; Strutting piece, is connected with base and is contained in through hole, and strutting piece offers the center hole be communicated with through hole; And leading-out piece, be connected with strutting piece through center hole, comprise the first lead division and the second lead division.End shield ground signalling in end shield guide rod is drawn by leading-out piece by this Transformer Bushing Tap ejector, can extract end shield ground signalling easily.Second lead division is plugged in the first lead division separably, and therefore, in the utility model, Transformer Bushing Tap ejector is applicable to on-line measurement and tests two states with power failure.
Description
Technical field
The utility model relates to a kind of signal ejector of power equipment, particularly relates to Transformer Bushing Tap signal ejector.
Background technology
Transformer has the functions such as voltage transformation, current transformation, impedance transformation, isolation, voltage stabilizing, is a kind of device generally applied in electrical network.According to statistics, the electric fault of many transformers is all relevant with sleeve pipe fault, the especially insulation fault of sleeve pipe.Moisture invasion, insulating oil are gone bad and the aging dielectric loss of cover pipe insulation that all can cause of insulating paper raises, and will cause insulation overheat and quick aging thereupon, and finally cause insulation breakdown.
Under running state of transformer, by to the measurement of Transformer Bushing Tap earth current signal and analysis, all kinds of characteristic parameters (such as dielectric loss and capacitance etc.) that effectively can reflect sleeve pipe insulation property can be obtained, be convenient to the insulation defect finding early to exist.But current most of Transformer Bushing Tap all adopts internal ground structure, end shield ground signalling can not be extracted easily.Therefore, propose a kind of Transformer Bushing Tap signal ejector, under the prerequisite not affecting bushing shell for transformer security of operation, bottom shielding of bushing guide rod can be led to outside, to carry out on-line measurement, power failure test to its state of insulation and to analyze.
Utility model content
Based on this, be necessary the problem that can not extract end shield ground signalling for existing Transformer Bushing Tap ejector easily, a kind of Transformer Bushing Tap ejector can drawing end shield signal is easily provided.
A kind of Transformer Bushing Tap ejector, leads to signal cable for coordinating with bushing shell for transformer by the end shield ground signalling on the end shield guide rod in bushing shell for transformer; Described bushing shell for transformer comprises bottom shielding of bushing tap, and described end shield guide rod protrudes from the side of described end shield tap, and described Transformer Bushing Tap ejector comprises:
Base, comprise first end, the second end and run through the through hole of first end and the second end, described first end is connected with described bottom shielding of bushing tap;
Strutting piece, is connected with described base and is contained in described through hole, and described strutting piece offers the center hole be communicated with described through hole; And
Leading-out piece, is connected with described strutting piece through described center hole, comprises the first lead division and the second lead division;
Wherein, the described first lead division exit that comprises leading-in end and be connected with described leading-in end; Described leading-in end is connected with described end shield guide rod, and described exit coordinates with described second lead division through described center hole; Described second lead division is separable to be plugged in described exit and the end shield ground signalling on described end shield guide rod is led to signal cable.
Wherein in an embodiment, described second lead division comprises leading-out terminal and wire connecting portion, and the described exit of described first lead division offers fairlead; Described leading-out terminal one end can be inserted in described fairlead and is connected with described first lead division, and the other end is connected with described wire connecting portion.
Wherein in an embodiment, described leading-out terminal is banana joint terminal, and described wire connecting portion is two attaching nuts.
Wherein in an embodiment, the described leading-in end of described first lead division is provided with the introduction hole that can connect described end shield guide rod and the tight lock part described introduction hole can locked.
Wherein in an embodiment, described first lead division also comprises the location division be arranged between described leading-in end and described exit; Described location division is an annular projection, and its diameter is greater than the diameter of described center hole, prevents described leading-out piece from departing to away from the direction of described end shield guide rod and described strutting piece.
Wherein in an embodiment, described base also comprises and protrudes from described chassis outer side and first protruding between described first end and described second end; Described strutting piece is contained in described through hole, to be connected and to offset with described first projection by described second end with described base.
Wherein in an embodiment, also comprise waterproof case; Described base also comprises and protrudes from described chassis outer side, and second protruding between described first end and described second end; Described waterproof case is sheathed on the second end of described base, and offsets with described second projection.
Wherein in an embodiment, the lid end that described waterproof case comprises the link be connected with described base, the sidewall protruded to side by described link edge and can open relative to described sidewall or cover; When described lid end is covered on described sidewall, described link, described sidewall and described lid end enclose formation one container cavity jointly; Described sidewall is provided with the cable waterproof head be communicated with described container cavity.
Wherein in an embodiment, also comprise the guard member be arranged at inside described waterproof case; Described guard member comprises anti-open-circuit protector, the first grounding parts and the second grounding parts; The input of described anti-open-circuit protector is connected by holding wire with described wire connecting portion, and the output of described anti-open-circuit protector is connected by described holding wire with described first grounding parts; Described second grounding parts is connected with the output of described signal cable.
Wherein in an embodiment, described Transformer Bushing Tap ejector also comprises seal and flat shim, and described seal is used for sealing connecting between each parts; Described first lead division is fixed on described strutting piece by the first fixture, described seal comprises the second seal be arranged between described strutting piece and described first fixture, and described flat shim is arranged between described second seal and described first fixture.
End shield ground signalling in end shield guide rod is drawn by leading-out piece by above-mentioned Transformer Bushing Tap ejector, can extract end shield ground signalling easily.Second lead division is plugged in the first lead division separably, and therefore, in the utility model, Transformer Bushing Tap ejector is applicable to on-line measurement and tests two states with power failure.Wherein during on-line measurement, the leading-out terminal of the second lead division is inserted in the fairlead of the first lead division exit, the signal on signal cable is tested; When carrying out power failure test, pulled up by the second lead division, be then connected on by test splice in part or the first fixture that the first lead division exit stretches out strutting piece, it is simple to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation that in the utility model, Transformer Bushing Tap ejector coordinates with bushing shell for transformer;
Fig. 2 is the structural representation of Transformer Bushing Tap ejector in the utility model.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, is not limited to embodiment described herein.On the contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
It should be noted that, when element is called as " being fixed on " another element, directly can there is element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be directly connected to another element or may there is centering elements simultaneously.Term as used herein " vertical ", " level ", "left", "right" and similar statement are just for illustrative purposes.
Unless otherwise defined, all technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model understand usually.The object of the term used in specification of the present utility model herein just in order to describe specific embodiment, is not intended to be restriction the utility model.Term as used herein " and/or " comprise arbitrary and all combinations of one or more relevant Listed Items.
As shown in Figure 1, Transformer Bushing Tap ejector 100 in the utility model, for coordinating with bushing shell for transformer 200, carry out on-line measurement or the test that has a power failure the end shield ground signalling on end shield guide rod 230 in bushing shell for transformer 200 to be led to signal cable (not shown).The end of bushing shell for transformer 200 is provided with the bottom shielding of bushing tap 210 for being connected with Transformer Bushing Tap ejector 100.One end that bottom shielding of bushing tap 210 is connected with Transformer Bushing Tap ejector 100 is provided with depressed part 220.End shield guide rod 230 protrudes from the side of bottom shielding of bushing tap 210 and is contained in depressed part 220.
Transformer Bushing Tap ejector 100 comprises base 30, strutting piece 20, leading-out piece 10, waterproof case 50 and guard member 60.
Referring to Fig. 2, base 30 is hollow communicating structure, and it comprises first end 31, second end 33, first protruding 37 relative with first end 31 and the second projection 35.Base 30 offers the through hole 39 running through first end 31 and the second end 33.The outside of first end 31 is bolted in the inner side of bottom shielding of bushing tap 210 towards depressed part 220, and is contained in depressed part 220.The outside of the second end 33 and inner side are respectively arranged with external screw thread 33a and internal thread 33b.First projection 37 to protrude from inside base 30 and is arranged between first end 31 and the second end 33.Second projection 35 to be arranged between first end 31 and the second end 33 and to protrude to the direction outside base 30 and formed.
Strutting piece 20 is made up of isolation material, is contained in through hole 39, and it is bolted on base 30 by the internal thread 33b on the second end 33.Strutting piece 20 offers and is communicated with and the center hole 21 overlapped with the central shaft of through hole 39 with through hole 39.When mounted, one end and first projection 37 of strutting piece 20 offset, and the other end of strutting piece 20 is near the second end 33 of base 30.Wherein, first protruding 37 pairs of strutting pieces 20 play position-limiting action.In other embodiments, strutting piece 20 is formed directly on the second end 33, and to be integrally combined with base 30, now center hole 21 and through hole 39 can be the shoulder hole be interconnected.
Leading-out piece 10 is by can conductive material make, and it comprises the first lead division 11 and separable the second lead division 13 being plugged in the first lead division 11.
It is outer and be fixed on strutting piece 20 by the first fixture 41 that one end of first lead division 11 exposes to strutting piece 20 through the center hole 21 of strutting piece 20.In the present embodiment, the first fixture 41 is hold-down nut.The leading-in end 11a that first lead division 11 comprises the end shield ground signalling on end shield guide rod 230 is introduced is connected and exit 11b signal being led to the second lead division 13 and location division 11c be arranged between leading-in end 11a and exit 11b with leading-in end 11a.
Leading-in end 11a is contained in through hole 39, and the first end 31 of close base 30.Leading-in end 11a be provided with can with the introduction hole 11e of end shield guide rod 230 grafting.When mounted, end shield guide rod 230 is plugged in introduction hole 11e, and is locked on end shield guide rod 230 by leading-in end 11a by tight lock part 11d.In the present embodiment, tight lock part 11d is sheathed on the binding ring outside leading-in end 11a, and this structure makes there is enough large contact area between end shield guide rod 230 and the first lead division 11, and is connected firmly.
Exit 11b, away from the end of leading-in end 11a, exposes to strutting piece 20 through center hole 21 outer and be spirally connected with the first fixture 41.Exit 11b is provided with the fairlead 11f coordinated with the second lead division 13, it leads to signal cable for the end shield ground signalling introduced from end shield guide rod 230 by the first lead division 11, to carry out on-line measurement.
Location division 11c protrudes from the annular projection between leading-in end 11a and exit 11b, and its diameter is greater than the diameter of the center hole 21 of strutting piece 20, prevents leading-out piece 10 from departing to away from the direction of end shield guide rod 230 and strutting piece 20.
Second lead division 13 is plugged in the fairlead 11f of the first lead division 11 separably, comprises leading-out terminal 13a and wire connecting portion 13b.Leading-out terminal 13a one end is plugged in the fairlead 11f of exit 11b separably, and to be electrically connected with the first lead division 11, the other end and wire connecting portion 13b are spirally connected.In the present embodiment, leading-out terminal 13a is banana joint terminal, and wire connecting portion 13b is two attaching nuts.
During on-line measurement, the leading-out terminal 13a of the second lead division 13 is inserted in the fairlead 11f of the first lead division 11 exit 11b, the first lead division 11 and the second lead division 13 are electrically connected, to test the signal of signal cable.When carrying out power failure test, the second lead division 13 being pulled up, making the first lead division 11 and the equal electric insulation of miscellaneous part and being only connected with end shield guide rod 230; Then be directly connected on by test splice in part or the first fixture 41 that the first lead division 11 exit 11b stretches out strutting piece 20 center hole 21, it is simple to operate.
Waterproof case 50 is made up of waterproof material, it lid end 53 comprising the link 51 be connected with base 30, the sidewall 55 protruded to side by link 51 edge and can open relative to sidewall 55 or cover.When lid end 53 is covered on sidewall 55, link 51, sidewall 55 and lid end 53 enclose formation one container cavity 59 jointly.First lead division 11 exit 11b stretches out the part of strutting piece 20, the second lead division 13 and the first fixture 41 and is contained in container cavity 59, avoid its accuracy that impact is measured by rainwater or the corrosion of other material, thus the end shield ground signalling on end shield guide rod 230 can be drawn safely and effectively.
Link 51 is provided with opening, the second end 33 that this opening sleeve is located at base 30 is fixedly connected with base 30 by external screw thread 33a, and offsets with described second projection 35.Understandable, the opening inner side of link 51 also can not arrange internal thread, and separately establishes the second fixture 43 to be fixed on the second end 33.Now link 51 is held between the second protruding 35 and second fixture 43, thus is fixed on base 30 by waterproof case 50.In other embodiments, also can internal thread be set at the opening inner side of link 51 and the second fixture 43 is set simultaneously, make base 30 more firm with fixing of waterproof case 50.
Sidewall 55 is also provided with the cable waterproof head 57 be communicated with container cavity 59.In other embodiments, cable waterproof head 57 also can be arranged on other position of sidewall 55.Cable waterproof head 57 has a perforate and is communicated with container cavity 59, signal cable is entered in the container cavity 59 of waterproof case 50 by this perforate and is connected with the wire connecting portion 13b of the second lead division 13.
The lid end 53 of waterproof case 50 can be threaded connection, buckle connects and adopt the modes such as screw connection to be connected on the sidewall 55 of waterproof case 50, is easy to open or covers lid end 53.No matter adopt which kind of connected mode, all need to do encapsulation process, as increased rubber gasket.When carrying out power failure test, only need the lid end 53 opening waterproof case 50, pull up the second lead division 13, it is simple to operate.
Guard member 60 is arranged at the inner side of waterproof case 50, and it comprises anti-open-circuit protector 61, first grounding parts 63 and the second grounding parts 65.The input of anti-open-circuit protector 61 is connected by holding wire with the wire connecting portion 13b of the second lead division 13, and the output of anti-open-circuit protector 61 is connected by holding wire with the first grounding parts 63.When ensureing that the wire connecting portion 13b of the second lead division 13 and signal cable are opened a way, other components and parts in circuit can not be damaged.Wire connecting portion 13b is two attaching nuts be made up of electric conducting material, and the anti-holding wire of open-circuit protector 61 input and the input of signal cable are connected between two attaching nuts.Two attaching nut's conducted signals fixed signal line and signal cable input.Second grounding parts 65 is connected with the output of signal cable, makes signal cable ground connection.Concrete, the first grounding parts 63 and the second grounding parts 65 are grounding screw.
In the present embodiment, Transformer Bushing Tap ejector 100 also comprises seal, and for sealing connecting between each parts, to make measurement interference-free, measurement result is more accurate.Seal comprises the first seal 81 between location division 11c and strutting piece 20 being arranged at the first lead division 11; Be arranged at the second seal 83 between strutting piece 20 and the first fixture 41; Be arranged at strutting piece 20 and through hole 39 inside the first projection 37 between the 3rd seal 85; Be arranged at the 4th seal 87 between second protruding 35 of base 30 and bottom shielding of bushing tap 210; Be arranged at the 5th seal 89 between second protruding 35 of base 30 and waterproof case 50.Concrete, the first seal 81, second seal 83, the 3rd seal 85, the 4th seal 87 and the 5th seal 89 are the O RunddichtringO that specification is different.
The installation process of Transformer Bushing Tap ejector 100: first, first lead division 11 is installed the first seal 81, then the introduction hole 11e of leading-in end 11a is inserted on end shield guide rod 230, and driven forward tight lock part 11d, ensure the electrical connection performance between end shield guide rod 230 and the first lead division 11.Then the 4th seal 87 is installed, strutting piece 20 is installed in the through hole 39 of base 30, then the 3rd seal 85 is installed, the first end 31 of base 30 to be installed in bottom shielding of bushing tap 210 and to tighten.Then second seal 83 and flat shim 90 are installed, utilize the first fixture 41 by fastening with strutting piece 20 for the first lead division 11; Wherein, flat shim 90 is arranged between the second seal 83 and the first fixture 41, for compressing the second seal 83, in case the second seal 83 comes off.Then the 5th seal 89 is installed, and waterproof case 50 is connected with base 30; Finally the input of anti-open-circuit protector 61 is received on the wire connecting portion 13b of the second lead division 13; output is received on the first grounding parts 63; the input of signal cable is received on the wire connecting portion 13b of the second lead division 13; output is received on the second grounding parts 65, and is covered by the lid end 53 of waterproof case 50.
End shield ground signalling in end shield guide rod 230 is drawn by leading-out piece 10 by above-mentioned Transformer Bushing Tap ejector 100, can extract end shield ground signalling easily.Second lead division 13 is plugged in the first lead division 11 separably, and therefore in the utility model, Transformer Bushing Tap ejector 100 is applicable to on-line measurement and tests two states with power failure.Wherein during on-line measurement, the leading-out terminal 13a of the second lead division 13 is inserted in the fairlead 11e of the first lead division 11 exit 11a, the end shield ground signalling on signal cable is tested; When carrying out power failure test, pulled up by the second lead division 13, be then connected on by test splice in part or the first fixture 41 that the first lead division 11 exit 11a stretches out strutting piece 20, it is simple to operate.
Above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make multiple distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. a Transformer Bushing Tap ejector, leads to signal cable for coordinating with bushing shell for transformer by the end shield ground signalling on the end shield guide rod in bushing shell for transformer; It is characterized in that, described bushing shell for transformer comprises bottom shielding of bushing tap, and described end shield guide rod protrudes from the side of described end shield tap, and described Transformer Bushing Tap ejector comprises:
Base, comprise first end, the second end and run through the through hole of first end and the second end, described first end is connected with described bottom shielding of bushing tap;
Strutting piece, is connected with described base and is contained in described through hole, and described strutting piece offers the center hole be communicated with described through hole; And
Leading-out piece, is connected with described strutting piece through described center hole, comprises the first lead division and the second lead division;
Wherein, the described first lead division exit that comprises leading-in end and be connected with described leading-in end; Described leading-in end is connected with described end shield guide rod, and described exit coordinates with described second lead division through described center hole; Described second lead division is separable to be plugged in described exit and the end shield ground signalling on described end shield guide rod is led to signal cable.
2. Transformer Bushing Tap ejector according to claim 1, is characterized in that, described second lead division comprises leading-out terminal and wire connecting portion, and the described exit of described first lead division offers fairlead; Described leading-out terminal one end can be inserted in described fairlead and is connected with described first lead division, and the other end is connected with described wire connecting portion.
3. Transformer Bushing Tap ejector according to claim 2, is characterized in that, described leading-out terminal is banana joint terminal, and described wire connecting portion is two attaching nuts.
4. Transformer Bushing Tap ejector according to claim 1, is characterized in that, the described leading-in end of described first lead division is provided with the introduction hole that can connect described end shield guide rod and the tight lock part described introduction hole can locked.
5. Transformer Bushing Tap ejector according to claim 1, is characterized in that, described first lead division also comprises the location division be arranged between described leading-in end and described exit; Described location division is an annular projection, and its diameter is greater than the diameter of described center hole, prevents described leading-out piece from departing to away from the direction of described end shield guide rod and described strutting piece.
6. Transformer Bushing Tap ejector according to claim 1, is characterized in that, described base also comprises and protrudes from described chassis outer side and first protruding between described first end and described second end; Described strutting piece is contained in described through hole, to be connected and to offset with described first projection by described second end with described base.
7. Transformer Bushing Tap ejector according to claim 2, is characterized in that, also comprise waterproof case; Described base also comprises and protrudes from described chassis outer side, and second protruding between described first end and described second end; Described waterproof case is sheathed on the second end of described base, and offsets with described second projection.
8. Transformer Bushing Tap ejector according to claim 7, it is characterized in that, the lid end that described waterproof case comprises the link be connected with described base, the sidewall protruded to side by described link edge and can open relative to described sidewall or cover; When described lid end is covered on described sidewall, described link, described sidewall and described lid end enclose formation one container cavity jointly; Described sidewall is provided with the cable waterproof head be communicated with described container cavity.
9. Transformer Bushing Tap ejector according to claim 8, is characterized in that, also comprises the guard member be arranged at inside described waterproof case; Described guard member comprises anti-open-circuit protector, the first grounding parts and the second grounding parts; The input of described anti-open-circuit protector is connected by holding wire with described wire connecting portion, and the output of described anti-open-circuit protector is connected by described holding wire with described first grounding parts; Described second grounding parts is connected with the output of described signal cable.
10. Transformer Bushing Tap ejector according to claim 9, is characterized in that, described Transformer Bushing Tap ejector also comprises seal and flat shim, and described seal is used for sealing connecting between each parts; Described first lead division is fixed on described strutting piece by the first fixture, described seal comprises the second seal be arranged between described strutting piece and described first fixture, and described flat shim is arranged between described second seal and described first fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594717.9U CN204155693U (en) | 2014-10-14 | 2014-10-14 | Transformer Bushing Tap ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420594717.9U CN204155693U (en) | 2014-10-14 | 2014-10-14 | Transformer Bushing Tap ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204155693U true CN204155693U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420594717.9U Expired - Fee Related CN204155693U (en) | 2014-10-14 | 2014-10-14 | Transformer Bushing Tap ejector |
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| CN (1) | CN204155693U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469934A (en) * | 2015-12-24 | 2016-04-06 | 江苏神马电力股份有限公司 | Tap grounding apparatus and transformer bushing with same |
| CN106940415A (en) * | 2017-02-07 | 2017-07-11 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | The detecting system of capacitance sleeve pipe with measurement terminal and end shield ground terminal |
-
2014
- 2014-10-14 CN CN201420594717.9U patent/CN204155693U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469934A (en) * | 2015-12-24 | 2016-04-06 | 江苏神马电力股份有限公司 | Tap grounding apparatus and transformer bushing with same |
| CN105469934B (en) * | 2015-12-24 | 2018-10-02 | 江苏神马电力股份有限公司 | End shield earthing or grounding means and bushing shell for transformer with the device |
| CN106940415A (en) * | 2017-02-07 | 2017-07-11 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | The detecting system of capacitance sleeve pipe with measurement terminal and end shield ground terminal |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170717 Address after: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. Address before: 510080 Dongfeng East Road, Dongfeng, Guangdong, Guangzhou, Zhejiang Province, No. 8 Co-patentee before: Beijing Shengtai Shishi Electrical Technology Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 |