CN203101616U - Detecting device for transformer iron core grounding current intelligent component - Google Patents
Detecting device for transformer iron core grounding current intelligent component Download PDFInfo
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- CN203101616U CN203101616U CN 201320096695 CN201320096695U CN203101616U CN 203101616 U CN203101616 U CN 203101616U CN 201320096695 CN201320096695 CN 201320096695 CN 201320096695 U CN201320096695 U CN 201320096695U CN 203101616 U CN203101616 U CN 203101616U
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- flat copper
- iron core
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- fixed mount
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Abstract
The utility model provides a detecting device for a transformer iron core grounding current intelligent component. The device can comprise a first flat copper, a first fixing frame, a second flat copper, and a second fixing frame, wherein the fixing frame is arranged on the first flat copper, the second fixing frame is arranged on the second flat copper, the first fixing frame and the second fixing frame both can fix the iron core grounding current intelligent component, the first flat copper and the second flat copper are connected to the two ends of a current supply in series and parallel to form a closed loop. According to the device provided by the utility model, annealed copper wires are replaced by flat coppers to detect the reliability of the iron core grounding current intelligent component, so that the error of the measured result caused by inconsistent current measuring carriers for the iron core grounding current intelligent component is prevented, in addition, the widths of the first flat copper and the second flat copper can be set according to the width of the on-spot flat copper to facilitate the detection on the opening sizes of intelligent components at different specifications, and the problem that the iron core grounding current intelligent component cannot be fixed on the spot for the opening is small is effectively prevented.
Description
Technical field
The utility model relates to the intelligent grid technical field, more particularly, relates to a kind of transformer iron core grounding current intelligent assembly pick-up unit.
Background technology
When transformer normally moves, its iron core one point earth, and there is alternating magnetic field in the transformer surrounding space.When 2 of iron cores or multipoint earthing, ground wire can form a closed-loop path, and produces circulation under the electromagnetic induction effect, causes that the transformer part is overheated, cause transformer oil to decompose, even the iron core siliconized plate burns out.At this moment, the circulation that multipoint earthing of iron core produces can make ground current following big more a lot of than nominal situation.Therefore, just can judge by the iron core grounding current of measuring transformer whether transformer exists the misoperation situation of multipoint earthing of iron core.Extensively adopt a kind of transformer iron core grounding current intelligent assembly that the ground current of transformer is detected at present, whether have the misoperation situation of multipoint earthing of iron core to judge transformer.But part iron core grounding current intelligent assembly is because the characteristic of itself makes that the accuracy of its measurement is low, and therefore poor repeatability, need test to the accuracy and the repeatability of its measurement.
A kind of method commonly used at present is the laboratory inspection method, and current source and annealed copper wire are formed the circuit closed loop, then the iron core grounding current intelligent assembly is fixed in the closed-loop path by the punching method.Compare by data, just can judge the accuracy that the iron core grounding current intelligent assembly is measured current source and iron core grounding current intelligent assembly; Current source and iron core grounding current intelligent assembly are left standstill a period of time (as 10 minutes), obtain for the second time the current data that the iron core grounding current intelligent assembly measures, the data of twice iron core grounding current intelligent assembly acquisition are compared, just can judge whether the repeatability of this iron core grounding current intelligent assembly is reliable.
But, in this laboratory detection method, what the iron core grounding current intelligent assembly detected is the electric current that flows through annealed copper wire, is flat copper (being the hard copper cash) and the iron core grounding line of on-the-spot transformer adopts, and what promptly the iron core grounding current intelligent assembly detected is the electric current that flows through flat copper.Because it is inconsistent that the iron core grounding current intelligent assembly is measured the carrier of electric current, so can cause the testing result of iron core grounding current intelligent assembly to have deviation.And, because what the laboratory was used is the annealed copper wire of same width, and the width of this annealed copper wire is generally narrow than the flat copper in the scene, so the iron core grounding intelligent assembly can be used in the time of can appearing at testing laboratory, when measuring at the scene, because the problem that iron core grounding current intelligent assembly opening is little is not found, the problem that the iron core grounding current intelligent assembly can't be fixed at the scene occurs.
The utility model content
In view of this, the utility model provides a kind of transformer iron core grounding current intelligent assembly pick-up unit, to realize the detection to iron core grounding current intelligent assembly reliability.
A kind of transformer iron core grounding current intelligent assembly pick-up unit, comprise: current source, first flat copper, first fixed mount, second flat copper and second fixed mount, the width of described first flat copper is first width, the width of described second flat copper is second width, described first fixed mount is arranged on described first flat copper, described second fixed mount is arranged on described second flat copper, but the equal secured core ground current intelligent assembly of described first fixed mount and described second fixed mount
Described first flat copper and the series connection of described second flat copper also are connected described current source two ends, form the closed-loop path.
Preferably, described first flat copper is different with the width of described second flat copper.
Preferably, described first flat copper and described second flat copper are the hard copper cash.
Preferably, described first flat copper is connected by screw with described second flat copper.
A kind of transformer iron core grounding current intelligent assembly pick-up unit, comprise: current source, first flat copper, first fixed mount, second flat copper, second fixed mount, the 3rd flat copper and the 3rd fixed mount, the width of described first flat copper is first width, the width of described second flat copper is second width, the width of described the 3rd flat copper is the 3rd width, described first fixed mount is arranged on described first flat copper, described second fixed mount is arranged on described second flat copper, described the 3rd fixed mount is arranged on described the 3rd flat copper, described first fixed mount, but described second fixed mount and described the 3rd fixed mount be secured core ground current intelligent assembly all
Described first flat copper, described second flat copper and the series connection of described the 3rd flat copper also are connected described current source two ends, form the closed-loop path.
Preferably, the width of described first flat copper, described second flat copper and described the 3rd flat copper is all different.
From above-mentioned technical scheme as can be seen, the utility model provides a kind of transformer iron core grounding current intelligent assembly pick-up unit, can comprise first flat copper, first fixed mount, second flat copper and second fixed mount, first fixed mount is arranged on first flat copper, second fixed mount is arranged on second flat copper, first fixed mount and second fixed mount all can secured core ground current intelligent assemblies, and first flat copper and the series connection of second flat copper also are connected the two ends of current source, form the closed-loop path.The utility model detects the iron core grounding current intelligent assembly is carried out reliability by changing annealed copper wire into flat copper, has avoided the iron core grounding current intelligent assembly inconsistent because of the carrier of measuring electric current, and the deviation of the measurement result that causes.And, can also carry out the setting of different in width according to on-the-spot flat copper width to first flat copper and second flat copper, so that the intelligent assembly of different size is carried out the detection of its openings of sizes, effectively avoid the iron core grounding current intelligent assembly at the scene because of the little problem that can't fix of opening.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
A kind of transformer iron core grounding current intelligent assembly pick-up unit synoptic diagram that Fig. 1 provides for the utility model embodiment;
The another kind of transformer iron core grounding current intelligent assembly pick-up unit synoptic diagram that Fig. 2 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model embodiment provides a kind of transformer iron core grounding current intelligent assembly pick-up unit synoptic diagram, can comprise: current source 100, first flat copper 200, first fixed mount 210, second flat copper 300 and second fixed mount 310, the width of described first flat copper 200 is first width, the width of described second flat copper 300 is second width, described first fixed mount 210 can be arranged on described first flat copper 200, described second fixed mount 310 can be arranged on described second flat copper 300, but described first fixed mount 210 and described second fixed mount, 310 equal secured core ground current intelligent assemblies
Described first flat copper 200 and 300 series connection of described second flat copper also are connected described current source 100 two ends, form the closed-loop path.
Wherein, current source 100 can be regarded a kind of ideal current source as, is a kind of from the abstract model that comes out of practical power.No matter how much voltage at current source 100 its two ends is, its terminal can outwards provide certain electric current.Therefore, current source 100 has two basic properties: the first, the electric current that it provides is definite value I, or its electric current of providing for the regular hour function I(t of the independent from voltage at two ends).The second, determine during current source 100 self electric current, and the voltage at its two ends is arbitrarily.
After it will be appreciated by persons skilled in the art that current source 100, first flat copper 200 and second flat copper 300 form the closed-loop path, the electric current that flows out from current source 100 can will generate an electromagnetic field on whole loop through first flat copper 200 and second flat copper 300.In the utility model, after being fixed on the iron core grounding current intelligent assembly on first fixed mount 210 or second fixed mount 310, the iron core grounding current intelligent assembly just can obtain the current value that first flat copper 200 or second flat copper 300 are flowed through according to the electromagnetic field around first flat copper 200 or second flat copper 300.By the current value of iron core grounding current intelligent assembly acquisition and the current value in the current source are compared, just can judge whether the measurement accuracy of this iron core grounding current intelligent assembly meets the demands.Whole loop is left standstill a period of time (as 10 minutes), obtain for the second time the current data that the iron core grounding current intelligent assembly measures, the data of twice iron core grounding current intelligent assembly acquisition are compared, just can judge whether the repeatability of this iron core grounding current intelligent assembly is reliable.
Wherein, the outside surface of first flat copper 200, first fixed mount 210, second flat copper 300 and second fixed mount 310 can be coated with one deck lacquer, when avoiding having electric current to flow through, personal safety is damaged by the loop that current source 100, first flat copper 200 and second flat copper 300 constitute.
Preferably, first flat copper 200 can be different with second flat copper, 300 width.
Be understandable that the width of the iron core grounding line of on-the-spot transformer has multiple, as 40mm, 60mm, 80mm etc.Therefore, on-the-spot when different transformer core ground wires is carried out the iron core grounding current Measurement and analysis, also different accordingly with the size of the opening of the corresponding iron core grounding current intelligent assembly of iron core grounding line.At this situation, the width of first flat copper 200 that we can the utility model provide is set to 40mm, the width of second flat copper 300 is set to 60mm, so that the openings of sizes of iron core grounding current intelligent assembly is tested, with the undesirable iron core grounding current intelligent assembly of timely discovery opening, avoid occurring the iron core grounding current intelligent assembly because of the little problem that can't fix at the scene of its opening.
Or the width of first flat copper 200 is set to 60mm, and the width of second flat copper 300 is set to 80mm.We can be provided with the width of first flat copper 200 and the width of second flat copper 300 according to actual needs, and the utility model is not done qualification at this.
Preferably, the width of first flat copper 200 and second flat copper 300 can be identical.
Be understandable that when the width of the width of first flat copper 200 and second flat copper 300 was identical, we can be simultaneously detect the reliability of the iron core grounding current intelligent assembly of two same model.
Wherein, first flat copper 200 and second flat copper 300 all can be the hard lead, and be promptly identical with the on-the-spot iron core grounding line that uses of transformer.
Preferably, first flat copper 200 can be connected by screw with second flat copper 300.
In summary it can be seen that the utility model detects the iron core grounding current intelligent assembly is carried out reliability by changing annealed copper wire into flat copper, has avoided the iron core grounding current intelligent assembly inconsistent because of the carrier of measuring electric current, and the deviation of the measurement result that causes.And, can also carry out the setting of different in width according to on-the-spot flat copper width to first flat copper and second flat copper, so that the intelligent assembly of different size is carried out the detection of its openings of sizes, effectively avoid the iron core grounding current intelligent assembly at the scene because of the little problem that can't fix of opening.
The width that it will be appreciated by persons skilled in the art that the size of iron core grounding current intelligent assembly opening and tested flat copper is approaching more, and its measurement result is accurate more.Therefore, the iron core grounding current intelligent assembly pick-up unit that the utility model provides can also filter out the iron core grounding current intelligent assembly approaching with the flat copper width, to increase the reliability of iron core grounding current intelligent assembly measurement result.
As shown in Figure 2, the another kind of transformer iron core grounding current intelligent assembly pick-up unit synoptic diagram that the utility model embodiment provides can comprise:
Described first flat copper 200, described second flat copper 300 and 400 series connection of described the 3rd flat copper also are connected described current source 100 two ends, form the closed-loop path.
Wherein, the characteristics of the principle of work of this device and each composition repeat no more with above-mentioned herein.
Preferably, the width of described first flat copper 200, described second flat copper 300 and the 3rd flat copper 400 can be all inequality.For example, the width of described first flat copper 200 is that the width of 40mm, second flat copper 300 is 60mm, and the width of the 3rd flat copper 400 is 80mm.Like this, we just can be simultaneously to the reliability of the iron core grounding current intelligent assembly of three different models with and the size of opening detect.
Be understandable that the width of described first flat copper 200, described second flat copper 300 and the 3rd flat copper 400 can also be all identical, with to the reliability of the iron core grounding current intelligent assembly of three same model with and the size of opening detect.Or wherein any two width of described first flat copper 200, described second flat copper 300 and the 3rd flat copper 400 is identical, and the utility model is not done qualification at this.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. transformer iron core grounding current intelligent assembly pick-up unit, it is characterized in that, comprise: current source, first flat copper, first fixed mount, second flat copper and second fixed mount, the width of described first flat copper is first width, the width of described second flat copper is second width, and described first fixed mount is arranged on described first flat copper, and described second fixed mount is arranged on described second flat copper, but described first fixed mount and described second fixed mount be secured core ground current intelligent assembly all
Described first flat copper and the series connection of described second flat copper also are connected described current source two ends, form the closed-loop path.
2. pick-up unit according to claim 1 is characterized in that, described first flat copper is different with the width of described second flat copper.
3. pick-up unit according to claim 1 is characterized in that, described first flat copper and described second flat copper are the hard copper cash.
4. pick-up unit according to claim 1 is characterized in that, described first flat copper is connected by screw with described second flat copper.
5. transformer iron core grounding current intelligent assembly pick-up unit, it is characterized in that, comprise: current source, first flat copper, first fixed mount, second flat copper, second fixed mount, the 3rd flat copper and the 3rd fixed mount, the width of described first flat copper is first width, the width of described second flat copper is second width, the width of described the 3rd flat copper is the 3rd width, described first fixed mount is arranged on described first flat copper, described second fixed mount is arranged on described second flat copper, described the 3rd fixed mount is arranged on described the 3rd flat copper, described first fixed mount, but described second fixed mount and described the 3rd fixed mount be secured core ground current intelligent assembly all
Described first flat copper, described second flat copper and the series connection of described the 3rd flat copper also are connected described current source two ends, form the closed-loop path.
6. pick-up unit according to claim 5 is characterized in that, the width of described first flat copper, described second flat copper and described the 3rd flat copper is all different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320096695 CN203101616U (en) | 2013-03-01 | 2013-03-01 | Detecting device for transformer iron core grounding current intelligent component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320096695 CN203101616U (en) | 2013-03-01 | 2013-03-01 | Detecting device for transformer iron core grounding current intelligent component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203101616U true CN203101616U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320096695 Expired - Lifetime CN203101616U (en) | 2013-03-01 | 2013-03-01 | Detecting device for transformer iron core grounding current intelligent component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203101616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152616A (en) * | 2017-12-14 | 2018-06-12 | 马鞍山豪远电子有限公司 | A kind of device for detecting performance of transformer core, transformer manufacturing system and method |
-
2013
- 2013-03-01 CN CN 201320096695 patent/CN203101616U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108152616A (en) * | 2017-12-14 | 2018-06-12 | 马鞍山豪远电子有限公司 | A kind of device for detecting performance of transformer core, transformer manufacturing system and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |