EP3411932A1 - Ableiter zum schutz vor überspannungen - Google Patents
Ableiter zum schutz vor überspannungenInfo
- Publication number
- EP3411932A1 EP3411932A1 EP17701496.6A EP17701496A EP3411932A1 EP 3411932 A1 EP3411932 A1 EP 3411932A1 EP 17701496 A EP17701496 A EP 17701496A EP 3411932 A1 EP3411932 A1 EP 3411932A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- projection
- wall
- electrode
- arrester according
- height
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012212 insulator Substances 0.000 claims abstract description 22
- 239000007772 electrode material Substances 0.000 claims description 23
- 238000011109 contamination Methods 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 2
- 238000009413 insulation Methods 0.000 description 21
- 238000001704 evaporation Methods 0.000 description 6
- 230000008020 evaporation Effects 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 229910052756 noble gas Inorganic materials 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
- H01T1/08—Means for extinguishing arc using flow of arc-extinguishing fluid
- H01T1/10—Means for extinguishing arc using flow of arc-extinguishing fluid with extinguishing fluid evolved from solid material by heat of arc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/12—Means structurally associated with spark gap for recording operation thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/24—Selection of materials for electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
- H01T4/12—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel hermetically sealed
Definitions
- a Abieiter for protection against overvoltages is specified.
- it is a gas-filled Abieiter.
- An overvoltage absorber is for example from the
- a surge arrester with a first electrode and a second electrode is disclosed.
- the electrodes each have an electrically conductive material.
- the Abieiter has a discharge space for
- Electrodes at an overvoltage In the case of an overvoltage, a discharge, in particular an arc discharge, should therefore take place between the electrodes in the discharge space.
- the discharge space is formed, for example, by a region between the electrodes, in particular by a region in which the distance of the electrodes is particularly small.
- Entladeraum can be filled with a gas, in particular a noble gas.
- the first electrode may have a different geometry than the second electrode.
- the first electrode is pin-shaped and the second electrode in geometry a hollow cylinder formed.
- the first electrode protrudes into the cavity of the second electrode.
- the first electrode may also have the same geometry as the second electrode.
- the Abieiter has an insulator.
- the insulator has a ceramic.
- the insulator forms a
- the Abieiter has the shape of a cylinder.
- the insulator forms
- the electrodes are galvanically separated from each other
- an insulation space is formed between the drain and the electrodes.
- Insulation space can be filled with a gas.
- the discharge space has, for example, an outlet opening through which the evaporated electrode material can leave the discharge space.
- the evaporated electrode material may then be on the
- the inner wall of the insulator has a projection. By the projection a sufficient insulation resistance of the insulator should be ensured.
- the lead is
- Electrodes are electrically connected to each other, obstructed.
- the lead also leads to
- the wall thickness of the insulator is preferably not reduced by the projection, so that the mechanical stability of the Abieiters is maintained.
- At least one of the electrodes extends along a direction, in particular a height direction, of the Abieiters into the discharge space, wherein the projection protrudes perpendicular to this direction.
- the inner wall has a first wall area and a second wall area.
- the first and the second wall region extend, for example, parallel to the height direction of the Abieiters.
- the projection divides the inner wall into the two wall regions.
- the first wall area is located in front of the projection coming from the discharge space and the second wall area is located behind the projection from the discharge space.
- the projection forms a hindrance to the evaporated electrode material, so that only part of the vaporized electrode material which reaches the projection also reaches the second wall region via the projection.
- the projection narrows a path for the evaporated electrode material.
- the projection may form a constriction of the insulation space.
- the evaporated electrode material has the Overcome the lead to get to the second wall area.
- the projection is circumferential
- the projection for example, rotates the inner wall of the insulator at a fixed height.
- the height of the projection is less than the height of the inner wall of the Abieiters. In particular, the height of the projection is substantially less than the height of the inner wall.
- the lead is only a local one
- the insulation space is narrowed only locally by the projection, so that the insulation space is reduced only slightly overall.
- the projection is offset relative to half the height of the inner wall.
- one of the wall areas is larger than the other wall area.
- the first wall area may be larger than the second wall area. But the second wall area should be sufficiently large to make the training electric
- the projection with respect to the outlet opening is arranged such that vaporized
- Electrode material does not hit the projection head-on. In this case, the shielding effect of the projection could be reduced.
- the projection is in Relative to a height position of an outlet opening of the discharge space arranged offset.
- the projection is arranged, for example, laterally next to one of the electrodes. In particular, only a gas-filled gap is located between the projection and this electrode.
- the electrode has an inside of the
- Entladeraums arranged end and a counter
- the projection is, for example, farther from the end of the discharge space arranged inside the discharge space
- Electrode removed as from the opposite end. In this way it can be prevented that the evaporation of the inner wall is too small in front of the area
- the projection is formed edge-shaped.
- the underside of the projection is formed edge-shaped.
- the bottom side is the side of the projection which adjoins the second wall region.
- the bottom encloses an angle smaller than 90 ° with the second wall portion. In this way, the projection becomes a shadow space
- This shadow space comprises, for example, the lower edge of the projection and an adjoining part of the second wall region.
- FIG. 1A shows an embodiment of a surge arrester for protection against overvoltages in a sectional view
- Figure 1B is an enlarged detail of the embodiment
- Figure 1A shows a Abieiter 1 for protection against overvoltages in the sectional view.
- the Abieiter 1 has, for example, a cylindrical shape.
- the conductor 1 has a first electrode 2 and a second electrode 3.
- the electrodes 2, 3 each have an electrically conductive material.
- the electrodes 2, 3 have copper.
- the first electrode 2 protrudes into the interior of the arrester 1 in the shape of a pencil.
- the second electrode 3 projects into the interior of the arrester 1, for example in the form of a hollow cylinder, and partially surrounds the first electrode 2.
- the Abieiter 1 has an insulator 4.
- the insulator 4 comprises an insulating material, for example ceramic or glass.
- the insulator 4 forms, for example, the
- the insulator 4 forms an inner wall 5 of the arrester 1.
- Abieiter 1 also has a first contact electrode 6, which is electrically conductively connected to the first electrode 2, and a second contact electrode 7, with the second
- Electrode 3 is electrically connected, on.
- Contact electrodes 6, 7 form, for example, the top and bottom surfaces of the arrester 1.
- the Abieiter 1 is for example hermetically sealed to the outside.
- the Abieiter 1 can with a gas,
- the Abieiter 1 has a discharge space 8, in the at
- Electrodes 2, 3 occurs.
- the discharge space 8 is formed between the electrodes 2, 3, in particular in a region in which the distance between the electrodes 2, 3 is the lowest.
- the electrodes 2, 3 are spaced from the inner wall 5.
- the second electrode 3 is located closer to the inner wall 5 than the first electrode 2.
- Electrodes 2, 3 is an insulation space 10.
- the insulation space 10 is filled with gas, for example.
- Isolator 4 occur with electrode material 11. This can lead to a reduction of the insulation resistance of the inner wall 5 and thus to a deterioration in function.
- the inner wall 5 has a projection 13.
- the projection 13 is part of the insulator 4 and thus of insulating
- the projection 13 is formed, for example, circumferentially along the inner wall 5.
- the projection 13 is annular.
- the projection 13 protrudes into the
- the projection 13 is located in the insulation space 10 between the insulator 4 and the second electrode 3.
- the height h of the projection 13, that is, the extension of the projection 13 in the direction from one contact electrode 6 to the opposite contact electrode 7, is essential
- the gas volume in the insulation space 10 is reduced only slightly by the projection 13.
- the height h of the projection 13 is less than or equal to a quarter of the height H of the
- the projection 13 is in relation to half the height of
- the projection 13 divides the insulation space 10 into a first space area 14 and a second space area 15.
- the first space area 14 is first reached by the evaporated electrode material 11 emerging from the discharge space 8.
- the second room area 15 is located at
- the second space area 15 is for example, much smaller than the first space area
- the projection 13 forms a local constriction of
- the projection 13 divides the inner wall 5 into a first wall region 16 and into a second wall region 17.
- the second wall region 17 lies behind the projection 13 coming from the discharge chamber 8 and is thus shaded by the projection 13. This will be the vaporization of the second
- the first wall portion 16 and the second wall portion 17 are arranged parallel to the height direction of the Abieiters 1.
- the second wall region 17 is substantially smaller than the first wall region 16.
- the wall-side insulation gap between the electrodes 2, 3 is extended by the projection 13.
- the wall thickness of the insulator 4 is not reduced by the projection 13, so that the stability of the insulator 4 against mechanical stress during the current pulse
- the projection 13 is arranged laterally next to the second electrode 3.
- the projection 13 is farther away from the end of the second electrode 3 located within the discharge space 8 than from the opposite end adjacent to the second contact electrode 7.
- the distance of the projection 13 to the end of the second electrode 3 arranged inside the discharge space 8 is at least twice as great as the distance to the end adjoining the second contact electrode 7.
- the distance is for example as
- Figure 1B shows an enlarged detail view of a portion of the Abieiters 1. The area shown is marked in Figure 1A by a circle.
- the projection 13 is formed edge-shaped.
- the projection 13 has an edge 19 on its underside 18.
- the bottom 18 of the projection 13 closes with the second wall portion 17, for example, an acute
- the angle is less than 80 °.
- the angle is less than 80 ° and greater than 30 °.
- the angle can also be less than or equal to 90 °.
- An upper side of the projection 13 is, for example
- the projection 13 may be formed corresponding to the bottom 18 and may in particular with the first wall portion 16 a point Include angle.
- the geometry of the projection 13 may also be referred to as stepped. In this case, the projection 13 forms a first stage with respect to the first wall region 16 and a second stage with respect to the second wall region 17.
- a shadow space 20 is formed behind the projection 13.
- the evaporation is additionally reduced again.
- the underside 18 of the projection 13 and an adjoining part of the second wall area lies in the shadow space 20.
Landscapes
- Thermistors And Varistors (AREA)
- Gas-Insulated Switchgears (AREA)
- Plasma Technology (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016101728.0A DE102016101728A1 (de) | 2016-02-01 | 2016-02-01 | Ableiter zum Schutz vor Überspannungen |
PCT/EP2017/051562 WO2017133951A1 (de) | 2016-02-01 | 2017-01-25 | Ableiter zum schutz vor überspannungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3411932A1 true EP3411932A1 (de) | 2018-12-12 |
EP3411932B1 EP3411932B1 (de) | 2023-07-26 |
Family
ID=57890831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17701496.6A Active EP3411932B1 (de) | 2016-02-01 | 2017-01-25 | Ableiter zum schutz vor überspannungen |
Country Status (6)
Country | Link |
---|---|
US (1) | US10910795B2 (de) |
EP (1) | EP3411932B1 (de) |
JP (1) | JP2019508844A (de) |
CN (1) | CN108604776A (de) |
DE (1) | DE102016101728A1 (de) |
WO (1) | WO2017133951A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6769086B2 (ja) * | 2016-04-26 | 2020-10-14 | 三菱マテリアル株式会社 | サージ防護素子 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3780350A (en) * | 1971-12-16 | 1973-12-18 | Gen Signal Corp | Surge arrester |
US4241374A (en) * | 1979-01-29 | 1980-12-23 | Reliable Electric Company | Surge voltage arrester with ventsafe feature |
DE3218948A1 (de) * | 1982-05-19 | 1983-11-24 | Krone Gmbh, 1000 Berlin | Ueberspannungsableiter |
JPS6055091U (ja) * | 1983-09-22 | 1985-04-17 | 株式会社サンコ−シャ | 放電形避雷器 |
DE8611043U1 (de) * | 1986-04-22 | 1987-10-01 | Siemens AG, 1000 Berlin und 8000 München | Überspannungsableiter |
JPH0261971A (ja) * | 1988-08-29 | 1990-03-01 | Matsushita Electric Ind Co Ltd | 放電ギャップ |
JPH0276463U (de) * | 1988-11-30 | 1990-06-12 | ||
JP2539464Y2 (ja) * | 1992-04-13 | 1997-06-25 | 矢崎総業株式会社 | ガス入り放電管 |
JPH07192841A (ja) * | 1993-12-27 | 1995-07-28 | Yazaki Corp | 放電管 |
JP2003100417A (ja) | 2001-09-25 | 2003-04-04 | Mitsubishi Materials Corp | チップ型サージアブソーバ |
DE102005036265A1 (de) | 2005-08-02 | 2007-02-08 | Epcos Ag | Funkenstrecke |
CN101297452A (zh) * | 2005-09-14 | 2008-10-29 | 力特保险丝有限公司 | 充气式电涌放电器、激活化合物、点火条及相应方法 |
SE532114C2 (sv) * | 2007-05-22 | 2009-10-27 | Jensen Devices Ab | Gasurladdningsrör |
EP2162961B1 (de) | 2007-06-21 | 2012-03-21 | Epcos AG | Vorrichtung und modul zum schutz vor blitzen und überspannungen |
DE102014102459A1 (de) * | 2014-02-25 | 2015-08-27 | Epcos Ag | Überspannungsschutzelement |
-
2016
- 2016-02-01 DE DE102016101728.0A patent/DE102016101728A1/de not_active Withdrawn
-
2017
- 2017-01-25 WO PCT/EP2017/051562 patent/WO2017133951A1/de active Application Filing
- 2017-01-25 CN CN201780009347.4A patent/CN108604776A/zh active Pending
- 2017-01-25 JP JP2018539886A patent/JP2019508844A/ja active Pending
- 2017-01-25 EP EP17701496.6A patent/EP3411932B1/de active Active
- 2017-01-25 US US16/074,767 patent/US10910795B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
WO2017133951A1 (de) | 2017-08-10 |
US20190052064A1 (en) | 2019-02-14 |
EP3411932B1 (de) | 2023-07-26 |
DE102016101728A1 (de) | 2017-08-03 |
JP2019508844A (ja) | 2019-03-28 |
US10910795B2 (en) | 2021-02-02 |
CN108604776A (zh) | 2018-09-28 |
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