CN207199388U - Insulator with adjust automatically discharging gap apparatus - Google Patents
Insulator with adjust automatically discharging gap apparatus Download PDFInfo
- Publication number
- CN207199388U CN207199388U CN201720912374.XU CN201720912374U CN207199388U CN 207199388 U CN207199388 U CN 207199388U CN 201720912374 U CN201720912374 U CN 201720912374U CN 207199388 U CN207199388 U CN 207199388U
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- China
- Prior art keywords
- sparking electrode
- discharging gap
- gap apparatus
- block
- insulator
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Abstract
The utility model discloses the insulator with adjust automatically discharging gap apparatus, the first discharging gap apparatus and the second discharging gap apparatus including being arranged at insulator both ends, head rod and the second connecting rod are respectively arranged with first discharging gap apparatus and the second discharging gap apparatus, the first sparking electrode and the second sparking electrode are respectively arranged with head rod and the second connecting rod, automatic adjusting mechanism is provided between head rod and the first sparking electrode, automatic adjusting mechanism includes the conducting block being fixed on head rod, guide groove is provided with conducting block, sliding conductor block is provided with guide groove, sliding conductor block both ends are respectively arranged with spring and water expanding block, first sparking electrode connects sliding conductor block and stretches out conducting block from close to the second sparking electrode end.This kind, which automatically adjusts discharging gap apparatus, to automatically adjust the distance between sparking electrode according to air humidity, so that discharge voltage keeps as far as possible constant in the case of different air humiditys.
Description
Technical field
The utility model belongs to insulator technology field, the specifically insulator with adjust automatically discharging gap apparatus.
Background technology
It is neutral to the transformer neutral point overvoltage protection generally use transformer using graded insulation in power system
Point installing arrester and discharging gap, wherein arrester mainly prevent lightning surge;Gap protection mainly prevents transformer
Power-frequency overvoltage and the resonance overvoltage damage that neutral point insulation incurs danger, both are realized to transformer neutral point mistake in cooperation
Effective protection of voltage.
The discharge voltage of discharging gap depends on clearance distance, while by height above sea level, climatic effect.The setting of discharge voltage
System single-phase earthing zero sequence voltage on neutral point, the dielectric level of transformer must be considered, and protected with arrester and relay
The cooperation of shield, if setting is improper, may priming transformer burn, the accident such as Explosion of on Arrester, protective relaying maloperation.Now
The discharging gap of in the market is fixed, and after charging operation, its clearance distance just can not adjust.But in practical application
In, its discharge voltage should also change therewith during the change of air humidity, but air humidity is not fixed, it is thus possible to can priming
The accidents such as transformer burns, Explosion of on Arrester, protective relaying maloperation.
Utility model content
The utility model is in view of the shortcomings of the prior art, provide the insulator with adjust automatically discharging gap apparatus, this kind
The distance between sparking electrode can be automatically adjusted according to air humidity by automatically adjusting discharging gap apparatus, so that in difference
Discharge voltage is kept as far as possible constant in the case of air humidity.
In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals:With adjust automatically
The insulator of discharging gap apparatus, including it is arranged at first discharging gap apparatus and the second discharging gap dress at insulator both ends
Put, head rod and the second connection are respectively arranged with first discharging gap apparatus and second discharging gap apparatus
It is respectively arranged with the first sparking electrode and the second sparking electrode on bar, the first connecting rod and the second connecting rod, described first
Automatic adjusting mechanism is provided between connecting rod and first sparking electrode, the automatic adjusting mechanism is described including being fixed on
Conducting block on head rod, guide groove is provided with the conducting block, sliding conductor block, institute are provided with the guide groove
State sliding conductor block and the second sparking electrode end is provided with spring, the sliding conductor block is close to the described first electric discharge electricity
Extreme to be provided with water swelling block, first sparking electrode connects the sliding shoe conductor block and from close to the described second electric discharge
Electrode tip stretches out the conducting block.Cause that the height of the water swelling block when air humidity is smaller is relatively low using the structure, first
The distance between sparking electrode and the second sparking electrode are shorter, and when air humidity is larger the water swelling of water swelling block height
Degree rise, the distance between the first sparking electrode and the second sparking electrode are elongated, and this kind automatically adjusts discharging gap apparatus can be with
The distance between sparking electrode is automatically adjusted according to air humidity, so that discharge voltage is protected in the case of different air humiditys
Hold as far as possible constant.
In above-mentioned technical proposal, it is preferred that first sparking electrode is located at directly over second sparking electrode.
In above-mentioned technical proposal, it is preferred that the direction of the guide groove and first sparking electrode and the second electric discharge electricity
The line of pole is parallel.
The utility model compared with prior art, has the advantages that:Using the structure cause air humidity compared with
The hour height of water swelling block is relatively low, and the distance between the first sparking electrode and the second sparking electrode are shorter, and wet in air
The height rise of water swelling block water swelling when spending larger, the distance between the first sparking electrode and the second sparking electrode become
Long, this kind, which automatically adjusts discharging gap apparatus, to automatically adjust the distance between sparking electrode according to air humidity, so that
Obtain the discharge voltage in the case of different air humiditys and keep as far as possible constant.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings:Referring to Fig. 1, have certainly
The insulator of dynamic adjustment discharging gap apparatus, including it is arranged at the first discharging gap apparatus 1 and second electric discharge at insulator both ends
Head rod 3 is respectively arranged with inter space device 2, first discharging gap apparatus 1 and second discharging gap apparatus 2
With the second connecting rod 4, the first sparking electrode 5 and the second electric discharge are respectively arranged with the first connecting rod 3 and the second connecting rod 4
Electrode 6, automatic adjusting mechanism 7 is provided between the head rod 3 and first sparking electrode 5, it is described to automatically adjust
Mechanism 7 includes the conducting block 8 being fixed on the head rod 3, and guide groove 81 is provided with the conducting block 8, described to lead
Sliding conductor block 82 is provided with into groove 81, the sliding conductor block 82 is provided with spring away from the second sparking electrode end 6
83, the sliding conductor block 82 is provided with water swelling block 84, first sparking electrode close to the end of the first sparking electrode 5
The 5 connections sliding shoe conductor block 82 simultaneously stretches out the conducting block 8 from close to the end of the second sparking electrode 6.In the present embodiment,
Water swelling block is water-absorbing resin, causes that the height of the water swelling block when air humidity is smaller is relatively low using the structure, first
The distance between sparking electrode and the second sparking electrode are shorter, and when air humidity is larger the water swelling of water swelling block height
Degree rise, the distance between the first sparking electrode and the second sparking electrode are elongated, and this kind automatically adjusts discharging gap apparatus can be with
The distance between sparking electrode is automatically adjusted according to air humidity, so that discharge voltage is protected in the case of different air humiditys
Hold as far as possible constant.
First sparking electrode 5 is directly over second sparking electrode 6, naturally it is also possible to is the first sparking electrode
5 immediately below second sparking electrode 6.
In order to ensure that the first sparking electrode 5 and the second sparking electrode are preferably controlled when the first sparking electrode moves
The distance between 6, the direction of the guide groove 81 is parallel with the line of the second sparking electrode 6 with first sparking electrode 5.
Claims (3)
1. the insulator with adjust automatically discharging gap apparatus, including it is arranged at first discharging gap apparatus at insulator both ends
(1)With the second discharging gap apparatus(2), first discharging gap apparatus(1)With second discharging gap apparatus(2)Upper point
Head rod is not provided with it(3)With the second connecting rod(4), the head rod(3)With second connecting rod(4)Upper point
The first sparking electrode is not provided with(5)With the second sparking electrode(6), it is characterised in that:The head rod(3)With described
One sparking electrode(5)Between be provided with automatic adjusting mechanism(7), the automatic adjusting mechanism(7)Including being fixed on described first
Connecting rod(3)On conducting block(8), the conducting block(8)Inside it is provided with guide groove(81), the guide groove(81)Inside it is provided with
Sliding conductor block(82), the sliding conductor block(82)Away from second sparking electrode(6)End is provided with spring(83), it is described
Sliding conductor block(82)Close to first sparking electrode(5)End is provided with water swelling block(84), first sparking electrode
(5)Connect the sliding conductor block(82)And from close to second sparking electrode(6)The conducting block is stretched out at end(8).
2. there is the insulator of adjust automatically discharging gap apparatus as claimed in claim 1, it is characterised in that:Described first puts
Electrode(5)Positioned at second sparking electrode(6)Surface.
3. there is the insulator of adjust automatically discharging gap apparatus as claimed in claim 1 or 2, it is characterised in that:It is described to lead
To groove(81)Direction and first sparking electrode(5)With the second sparking electrode(6)Line it is parallel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720912374.XU CN207199388U (en) | 2017-07-26 | 2017-07-26 | Insulator with adjust automatically discharging gap apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720912374.XU CN207199388U (en) | 2017-07-26 | 2017-07-26 | Insulator with adjust automatically discharging gap apparatus |
Publications (1)
Publication Number | Publication Date |
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CN207199388U true CN207199388U (en) | 2018-04-06 |
Family
ID=61798793
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201720912374.XU Expired - Fee Related CN207199388U (en) | 2017-07-26 | 2017-07-26 | Insulator with adjust automatically discharging gap apparatus |
Country Status (1)
Country | Link |
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CN (1) | CN207199388U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115149403A (en) * | 2022-07-06 | 2022-10-04 | 中广核(东至)新能源有限公司 | Lightning current transfer system and wind turbine using the same |
-
2017
- 2017-07-26 CN CN201720912374.XU patent/CN207199388U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115149403A (en) * | 2022-07-06 | 2022-10-04 | 中广核(东至)新能源有限公司 | Lightning current transfer system and wind turbine using the same |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
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: 20180406 |