CN202977005U - Current type insulator for overhead line - Google Patents
Current type insulator for overhead line Download PDFInfo
- Publication number
- CN202977005U CN202977005U CN 201220632362 CN201220632362U CN202977005U CN 202977005 U CN202977005 U CN 202977005U CN 201220632362 CN201220632362 CN 201220632362 CN 201220632362 U CN201220632362 U CN 201220632362U CN 202977005 U CN202977005 U CN 202977005U
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- insulator
- groove
- type insulator
- transmission line
- glass
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Abstract
The utility model relates to a current type insulator for an overhead line. The current type insulator comprises a needle type insulator, and is characterized in that, a groove is disposed at an upper part of the needle type insulator, the bottom surface of the groove is at least provided with two lead via holes, the internal of the groove is provided with a permalloy magnetic conductive iron core current converter, the permalloy magnetic conductive iron core current converter is formed by upper and lower housings, a permalloy magnetic conductive iron core disposed in the upper and lower housings, and coils connected with the permalloy magnetic conductive iron core, the upper and lower housings are connected to form an integration via pads and bolts, and leads go through the lead via holes and are connected with signal output wiring terminals disposed at a lower part of the needle type insulator. The current type insulator is advantageous in that, structure is simple, and via a collected current condition of the overhead line, correct determination of line fault point positions is conveniently realized.
Description
Technical field
The utility model relates to a kind of overhead transmission line signal pickup assembly, especially a kind of overhead transmission line current mode insulator.
Background technology
The 10KV overhead transmission line single-phase earthing and short trouble can occur often, and how in time to confirm position of failure point, is especially unsolved technical task still at present for the overhead transmission line fault point inquiry with branched line.The related content patent that publishes through the retrieval recent year mainly contains: 1) non-contact electronic type voltage sampling device (application number 201020210440.7) provides the non-contact electronic type voltage sampling device that a kind of contactless electromagnetic induction is sampled to voltage signal; 2) a kind of induction-type high-voltage post insulator belt sensor (application number 20120297482.3) adopts the induction type principle to gather high-voltage signal; 3) ceramic insulator capacitance integral sensor (application number 91200839.3) is a kind of ceramic insulation capacitance integral sensor that the whether charged signal of demonstration high-voltage charged body transmits that is used for that uses that is connected with display unit; 4) intelligent 10KV power circuit state sensor (application number 201010213574.2) is provided with the transducer insulator, includes communication unit, sensing unit, power subsystem.Insulator body does not have the function of collection signal, needs the outside to provide, and namely obtains by be coupled from high-tension line carrier signal coil and induction coil, and the signal of this sampling mode is subjected to external interference large, and numerical value is unstable, and precision is not high.
First three signals collecting form of planting patent is the voltage acquisition mode, and insulator used is the indoor bus-bar insulator of electric substation, is not the special-purpose pin insulator of overhead transmission line.After overhead transmission line generation single-phase earthing and disconnection fault, because system voltage changes not quite, therefore adopt the voltage signal acquisition mode not put character and position of failure point as Judging fault.
The 4th kind of patent is to adopt the coupled signal mode, and sampled signal is implemented in exterior insulator, installs extremely inconvenient.It is larger that the coupled signal of getting is affected by external interference, and jitter, numerical value are less than normal, can not reflect the truth before and after the fault of somewhere circuit.
Above-mentioned four kinds of patent collection signals are owing to can not providing actual overhead transmission line current values, so can't the quantitative analysis related data.
Summary of the invention
The purpose of this utility model is to provide a kind of novel overhead transmission line current mode insulator, by current measurement device being arranged on the mode of insulator inside, make it have multiple no-load voltage ratio current acquisition function, solve the problem that the prior art signals collecting can not reflect the overhead transmission line current conditions, so that for quantitative analysis provides related data, and then realization is to the correct judgement of line fault point position.
a kind of overhead transmission line current mode insulator of the present utility model, comprise pin insulator, it is characterized in that: the top at pin insulator is provided with groove, at least be provided with 2 wire through-holes in the bottom surface of groove, glass Mo alloy conducting magnet core power pack is housed in described groove, described glass Mo alloy conducting magnet core power pack is by upper-lower casing, the coil that is arranged on the interior glass Mo alloy conducting magnet core of upper-lower casing and glass Mo alloy conducting magnet core connection therewith forms, described upper-lower casing is connected to form one by pad and bolt, wire passes wire through-hole and is connected with the signal outlet terminal that is arranged on the pin insulator bottom.
Described groove is long 800mm, high 10mm, and the size of described glass Mo alloy conducting magnet core power pack and the size of groove are complementary.
Outer surface at insulator is provided with silicone rubber sleeve.
Operation principle of the present utility model is:
Before and after on overhead transmission line, this current mode insulator is installed all on 3～5 electric poles, open upper-lower casing, with the arbitrary phase conductor of overhead transmission line, put into glass Mo alloy-iron core top (how being connected with iron core), after the up and down two housing sections connects, the most handy repellent agent of its interface is carried out bonding, like this better effects if; This moment, glass Mo alloy-iron core power pack just can be with this aerial condutor electric current, through the iron core excitation, at coil two outputs (400/5,200/5,100/1) output current signal by a certain percentage, and transported to the signal outlet terminal by wire.
The current signal of each current mode insulator signal outlet terminal output, the data analysis set-up that all flows to the rear end is processed differentiation, differentiates that on each electric pole, current mode insulator current signal has indifference.
As the somewhere wire, single-phase earthing or conductor cord disconnection are arranged, difference appears in the electric pole current signal that at this moment faces mutually, and can locate has fault to occur herein.
Compared with prior art, the utility model has the advantages that:
This patent is arranged on overhead transmission line, can gathers easily the overhead transmission line current conditions, understand at any time overhead transmission line a certain position three-phase actual current situation, the current signal of collection can be used as the key condition of differentiating line fault and position of failure point.
The utility model is simple in structure, and the overhead transmission line current conditions by gathering realizes the correct judgement to line fault point position easily.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
as shown in Figure 1, a kind of overhead transmission line current mode insulator of the present utility model, comprise pin insulator, it is characterized in that: the top at pin insulator 5 is provided with groove, at least be provided with 2 wire through-holes 4 in the bottom surface of groove, glass Mo alloy conducting magnet core power pack is housed in described groove, described glass Mo alloy conducting magnet core power pack is by upper-lower casing, the coil 3 that is arranged on the interior glass Mo alloy conducting magnet core of upper-lower casing 2 and glass Mo alloy conducting magnet core connection therewith forms, described upper-lower casing is connected to form one by pad 9 and bolt 10, wire 7 passes wire through-hole 4 and is connected with the signal outlet terminal 8 that is arranged on pin insulator 5 bottoms.The purpose that its upper-lower casing connects by pad 9 and bolt 10 is to install for convenient.
Groove described in the utility model is long 800mm, high 10mm, and the size of described glass Mo alloy conducting magnet core power pack and the size of groove are complementary.
The utility model is provided with silicone rubber sleeve 6 at the outer surface of insulator.Its silicon rubber creepage distance is than the better effects if of porcelain insulator.
Claims (3)
1. overhead transmission line current mode insulator, comprise pin insulator, it is characterized in that: the top at pin insulator is provided with groove, at least be provided with 2 wire through-holes in the bottom surface of groove, glass Mo alloy conducting magnet core power pack is housed in described groove, described glass Mo alloy conducting magnet core power pack is by upper-lower casing, the coil that is arranged on the interior glass Mo alloy conducting magnet core of upper-lower casing and glass Mo alloy conducting magnet core connection therewith forms, described upper-lower casing is connected to form one by pad and bolt, wire passes wire through-hole and is connected with the signal outlet terminal that is arranged on the pin insulator bottom.
2. a kind of overhead transmission line current mode insulator according to claim 1, it is characterized in that: described groove is long 800mm, high 10mm, the size of described glass Mo alloy conducting magnet core power pack and the size of groove are complementary.
3. a kind of overhead transmission line current mode insulator according to claim 1, it is characterized in that: the outer surface at insulator is provided with silicone rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632362 CN202977005U (en) | 2012-11-27 | 2012-11-27 | Current type insulator for overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220632362 CN202977005U (en) | 2012-11-27 | 2012-11-27 | Current type insulator for overhead line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977005U true CN202977005U (en) | 2013-06-05 |
Family
ID=48518049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220632362 Expired - Lifetime CN202977005U (en) | 2012-11-27 | 2012-11-27 | Current type insulator for overhead line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982920A (en) * | 2012-11-27 | 2013-03-20 | 鞍钢集团矿业公司 | Current type insulator for overhead line |
-
2012
- 2012-11-27 CN CN 201220632362 patent/CN202977005U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102982920A (en) * | 2012-11-27 | 2013-03-20 | 鞍钢集团矿业公司 | Current type insulator for overhead line |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee after: ANSTEEL GROUP MINING Co.,Ltd. Address before: 114001 Anshan District, Liaoning, No. 219 Road, No. 39, Tiedong Patentee before: Ansteel Group Mining Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |