EP1782443A1 - Contact assembly - Google Patents
Contact assemblyInfo
- Publication number
- EP1782443A1 EP1782443A1 EP05770240A EP05770240A EP1782443A1 EP 1782443 A1 EP1782443 A1 EP 1782443A1 EP 05770240 A EP05770240 A EP 05770240A EP 05770240 A EP05770240 A EP 05770240A EP 1782443 A1 EP1782443 A1 EP 1782443A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact
- insulating rod
- bore
- holder
- arrangement according
- 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
- 238000012216 screening Methods 0.000 claims 1
- 210000002414 leg Anatomy 0.000 description 14
- 239000011810 insulating material Substances 0.000 description 4
- 230000001066 destructive effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 210000000689 upper leg Anatomy 0.000 description 2
- 241000937413 Axia Species 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0016—Contact arrangements for tap changers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/0005—Tap change devices
- H01H9/0016—Contact arrangements for tap changers
- H01H2009/0022—Mounting of the fixed contacts or taps on cylindrical wall of oil vessel containing the tap changer; Details of screening
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2221/00—Actuators
- H01H2221/002—Actuators integral with membrane
- H01H2221/004—U-shaped openings surrounding keys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2223/00—Casings
- H01H2223/01—Mounting on appliance
- H01H2223/028—Mounting on appliance detachable
Definitions
- the invention relates to a contact arrangement with a fixed electrical contact, which is attached to an insulating rod, for a tap changer or diverter.
- Tap changer and diverter are known devices for switching between different winding taps of a control transformer for voltage regulation. They have fixed contacts that are electrically connected to the individual winding taps of a control transformer and are usually arranged in phases on superimposed circular paths. In each horizontal plane, the fixed contacts are connectable by a movable contact, usually a contact bridge, which is connected to the electrical load dissipation.
- the fixed contacts are attached to vertical Isolierstäben made of hard paper or glass fiber reinforced plastic or in the wall of Isolierzylindern.
- AT-PS 187991 itself describes a further contact arrangement in which clamping pieces are provided which comprise the respective insulating bars and which are screwed outside these insulating bars, so that no metallic fastening means penetrate the insulating bars themselves.
- a very similar solution has later been proposed again in AT-PS 315302. Although the holes through the insulating bars can be avoided, metallic fasteners are nevertheless present, even if outside the insulating bars; their unfavorable influence on the dielectric strength thus persists.
- DE-GM 9010730 proposes a similar contact arrangement;
- the shank of the contact in a defined area is weakened in its cross section, and by upsetting from the outside a bead-like thickening of the shaft is reached at this point, whereby a fixing takes place.
- no special tool is required for the compression described from the outside - a hammer is sufficient - but also here in addition to the turn only positive connection has the disadvantage that disassembly is also possible only by destruction of the contact.
- DE-PS 4236528 describes a further possibility of attaching a contact by a contact shaft penetrating transverse bolt and cooperating locking means.
- This connection is non-destructive solvable, can also be performed non-positively and is also suitable for the simultaneous attachment of shield rings. However, it could not prevail because it is relatively complicated and requires a large number of highly accurate parts manufactured to each other.
- the object of the invention is therefore to provide a contact arrangement of the type mentioned, in which a fixed electrical contact to an insulating rod can be fastened without a deterioration of the Spa ⁇ nungsfesttechnik takes place by metallic Befest Trentsigu ⁇ gsteiJe, the contact assembly continues to be simple and inexpensive, against loosening of secured solid contact and also destructible again disassembled.
- the contact arrangement of the type mentioned except the actual contact which is to be attached to an insulating rod, nor a two-part contact holder made of insulating material and bolts for mounting, also made of insulating material.
- the actual contact is U-shaped.
- the contact arrangement according to the invention has a number of advantages: There are no metallic parts required for attachment, the entire arrangement consists of only a few, easy to produce parts, yet a secure attachment without special tools is possible.
- the attachment according to the invention also ensures a reliable secure attachment in case of eventual shrinkage of the insulating rod or during subsequent vibrations during operation; Finally, again without special tools - at any time an easy and non-destructive disassembly possible. According to an advantageous embodiment of the invention are additional in a simple way
- Shielding caps which surround the contact on both sides in the longitudinal direction of the insulating, with fastened.
- Figure 2 shows this contact arrangement, rotated horizontally by 90 °
- Figure 4 is a section in the plane B-B through this contact arrangement
- Figure 6 is a perspective view of the contact arrangement
- Figure 7 shows a similar representation again rotated horizontally by 90 °
- Figure 8 shows a contact alone in perspective view
- Figure 10 is an upper contact holder alone in perspective view
- Figure 12 is a bolt for attachment
- Figure 13 is an upper shield ring alone in perspective view
- Figure 14 shows a lower shield ring alone in perspective.
- FIGS. 1-7 which show the entire contact arrangement, an insulating rod 1 is first of all shown, to which the contact arrangement according to the invention is intended to be fastened.
- the individual parts of the contact arrangement according to the invention are shown separately in FIGS. 8 to 14.
- the insulating rod 1 has for each contact arrangement to be fastened in each case an upper fastening / supply bore 11 and a lower mounting hole 12.
- the contact 2 is arranged, which is U-shaped. It has a contact area 21; this is the area in which it can be connected at the top and bottom by a movable contact (not shown).
- He also has a long leg 22 and a short leg 23, in the long leg 22 is a connection bore 24, to which the electrical connection line, not shown here, can be connected to the respective winding tap of the control transformer.
- the long leg 22 also has an upper mounting hole 25 and a lower mounting hole 26.
- the short leg 23 extends on the opposite side of the insulating rod 1 parallel to the long leg 22 and also has an upper mounting hole 27 and a lower mounting hole 28.
- the mounting holes 25 and 27 and 26 and 28 correspond to the Befest Trentsbohrunge ⁇ 11 and 12, the insulating rod. 1 penetrate.
- the contact 2 is fixed by an upper contact holder 3.
- the contact holder 3 has a guide shaft 31 whose inner dimensions correspond to the outer dimensions of the isolierstabes 1; he is pushed onto this insulating rod 1. He further has a circumferential collar 32, on the side, opposite each other, molded contact receptacles 33 and 34 are provided.
- the lower contact holder 4 is constructed identically as the already described upper contact holder 3; he is pushed from below onto the insulating rod 1.
- it again has a guide shaft 41 to which a circumferential collar 42 is integrally formed, which in turn has laterally formed contact receptacles 43 and 44.
- the Ko ⁇ taktage 43 the lower portion of the long leg 22 rests in the contact 44, the lower portion of the short leg 23. In the area are in turn abutment 45 and 46 and holes 47 and - 48 opposite.
- the upper pin 5 is horizontally from the outside through the upper mounting hole 25 of the long leg 22 of the contact 2, further through the bore 37 of the upper contact holder 3, further through the upper mounting hole 11 of the insulating rod 1, further through the bore 38 of the upper contact holder. 3 on the opposite side, finally guided by the upper mounting hole 27 of the opposite short leg 23 of the contact 2 and then points on the opposite side again to the outside.
- the lower bolt 6 is first through the lower mounting hole 26 of the long leg 22 of the contact 2, further through the bore 47 of the lower contact holder 4, further through the lower mounting hole 12 of the insulating 1, then through the bore 48 on the opposite side of the bottom contact holder 4 and finally passed through the lower mounting hole 28 in the short leg 23 of the contact 2, before he also steps on the opposite side again to the outside.
- the bolts 5 and 6 are dimensioned in their length such that they rest laterally on the corresponding abutment 35, 35 for the upper bolt 5 and 45, 48 for the lower bolt 6.
- the outer regions of the abutments 35, 36 relative to the upper mounting hole 11 and the abutment 45, 46 relative to the lower mounting hole 12 vertically displaced by a small amount, so that, due to the existing within certain limits elasticity the components, the inserted bolts 5 and 6 are pressed during assembly in the axial direction against the outer regions of the abutments 35, 36 and 45, 46, to final assembly position "abut” these abutment in its outer region and the respective bolt thereby axia! This prevents unintentional slipping out.
- an upper shielding cap 7 and a lower shielding cap 8 are additionally provided.
- the open sides of these shielding caps 7 and 8 are respectively facing the contact piece 2.
- the upper shielding cap 7 has a first fastening tab 71 and, opposite this, a second fastening tab 72; each hole 73 and 74 are located therein, the upper shield 7 is pushed from above so on the insulating rod 1 that the fastening tab 71, 72 point down.
- the shield cap 8 constructed identically has a first fastening tab 81 facing upward in the pushed-on state and, opposite, a second fastening tab 82, in each of which there is again a bore 83 or 84.
- the fastening tabs 71, 72 and 81, 82 and the holes therein 73, 74 and 83, 84 are dimensioned such that the fastening bolts 5 and 6 are also guided in the mounted state through these holes, whereby the shielding caps 7 and 8 together with the contact 2 and upper contact holder 3 and lower contact holder 4 are attached to the insulating rod 1 with, without the need for additional fasteners.
- the electrical contact between the respective shielding cap 7 or 8 and the contact 2 is achieved by means of the respective pre-bent fastening tabs 71, 72 and 81, 82.
- the lateral edges of the fastening tabs 71, 72 and 81, 82 which are guided in a form-fitting manner in pockets 39, 49 of the respective contact holder 3, 4, prevent lateral twisting.
- the contact 2 is brought to the corresponding point of the insulating rod 1 to which it is to be attached for mounting. Subsequently, the upper contact holder 3 and pushed from below the lower Ko ⁇ takthalter 4 on the insulating rod 1 from above. Both contact holders 3 and 4 fix the contact 2. Subsequently, upper shield 7 can be pushed from above and lower shield 8 from below onto the insulating rod.
- the upper pin 5 is inserted horizontally. In the retracted state, the upper pin 5 rests laterally with its free ends on the inner abutment 35 or - on the other side - the inner abutment 36th
- a contact holder e.g. B. inexpensively as an injection molded plastic part, both as the upper contact holder 3 and - rotated by 180 degrees - as an identical lower
- Contact holder 4 is pushed onto the insulating rod 1 is a shield, easily made of sheet metal, both as the upper shield 7 and - rotated by 180 degrees - as identical lower shield 8 is pushed onto the insulating 1 a simple bolt of insulating material, both as Upper mounting bolt 5 and serves as a lower mounting bolt 6.
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Measuring Leads Or Probes (AREA)
- Multi-Conductor Connections (AREA)
- Insulating Bodies (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Non-Reversible Transmitting Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004041317A DE102004041317B3 (en) | 2004-08-26 | 2004-08-26 | Contact configuration |
PCT/EP2005/007209 WO2006021260A1 (en) | 2004-08-26 | 2005-07-05 | Contact assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1782443A1 true EP1782443A1 (en) | 2007-05-09 |
EP1782443B1 EP1782443B1 (en) | 2008-02-13 |
Family
ID=34973163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05770240A Active EP1782443B1 (en) | 2004-08-26 | 2005-07-05 | Contact assembly |
Country Status (10)
Country | Link |
---|---|
US (1) | US7497745B2 (en) |
EP (1) | EP1782443B1 (en) |
JP (1) | JP4772052B2 (en) |
KR (1) | KR101074318B1 (en) |
CN (1) | CN100508090C (en) |
AT (1) | ATE386331T1 (en) |
BR (1) | BRPI0506159A (en) |
DE (2) | DE102004041317B3 (en) |
HK (1) | HK1103257A1 (en) |
WO (1) | WO2006021260A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007023124B3 (en) * | 2007-05-16 | 2008-10-02 | Maschinenfabrik Reinhausen Gmbh | switching arrangement |
EP2509089B1 (en) * | 2011-04-04 | 2016-11-30 | ABB Schweiz AG | Tap changer |
CN105931870B (en) * | 2016-06-06 | 2019-01-22 | 平高集团有限公司 | Support conductor and the high-voltage switch gear for using the conductor |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT187991B (en) * | 1955-01-17 | 1956-12-10 | Elin Ag Elek Ind Wien | Contact arrangement |
DE1181803B (en) * | 1959-06-29 | 1964-11-19 | Licentia Gmbh | Connection switch for transformers |
DE1952607U (en) | 1966-08-29 | 1966-12-29 | Gerd Mai | LIGHTABLE FISHING FLOAT. |
DE1952607B2 (en) * | 1969-10-18 | 1981-08-27 | Transformatoren Union Ag, 7000 Stuttgart | Contact arrangement for changeover switch and transformer selector - has rotating sleeve with flanges holding contact pressure springs, which ensure correct current transfer and self-cleaning action |
BE751864A (en) * | 1970-06-12 | 1970-12-14 | Acec | FIXED CONTACTS, IN PARTICULAR FOR THE TRANSFORMER ADJUSTMENT TAP SELECTOR AND DEVICE FOR MOUNTING THESE CONTACTS, |
US3784964A (en) * | 1972-03-27 | 1974-01-08 | Empire Prod Inc | Electrical connector with retainer means |
AT315302B (en) * | 1972-05-29 | 1974-05-27 | Elin Union Ag | Contact arrangement for step selector |
BE823749A (en) * | 1974-12-23 | 1975-06-23 | Acec | FIXED CONTACT FOR ELECTRICAL TRANSFORMER TAKING CHANGER |
DE2705772A1 (en) | 1977-02-11 | 1978-08-17 | Reinhausen Maschf Scheubeck | On-load tap-changer for tap-changer transformers with a pressure-tight housing |
JPS5452634U (en) * | 1977-09-21 | 1979-04-11 | ||
JPS5452634A (en) * | 1977-10-05 | 1979-04-25 | Masashi Hirakawa | Process for improving quality of metal |
AT382476B (en) * | 1981-10-02 | 1987-02-25 | Elin Union Ag | SECURING CONTACTS |
DE3801152A1 (en) * | 1988-01-16 | 1989-07-27 | Reinhausen Maschf Scheubeck | CONTACT ARRANGEMENT SITTING IN AN INSULATING WALL FOR STEPPERS OF STEPPING TRANSFORMERS |
DE3801151A1 (en) * | 1988-01-16 | 1989-07-27 | Reinhausen Maschf Scheubeck | METHOD FOR ATTACHING A CONTACT PIECE SITTING IN AN INSULATING WALL |
DE9010730U1 (en) * | 1990-07-18 | 1991-08-14 | Maschinenfabrik Reinhausen Gmbh, 93059 Regensburg | Contact arrangement |
WO1992011668A1 (en) * | 1990-12-18 | 1992-07-09 | B & H (Nottm) Limited | Electrical connector |
ATA187991A (en) | 1991-09-19 | 1993-04-15 | Vaillant Gmbh | PIPE CONNECTION |
DE4236528C2 (en) * | 1991-11-19 | 1993-12-16 | Reinhausen Maschf Scheubeck | Contact arrangement and form spring for fastening this contact arrangement |
DE4138000C1 (en) | 1991-11-19 | 1993-03-04 | Maschinenfabrik Reinhausen Gmbh, 8400 Regensburg, De | |
CN2349713Y (en) * | 1997-12-10 | 1999-11-17 | 王恩林 | Automatic resetting bundling reed type wobbler contact |
CN2349712Y (en) * | 1997-12-10 | 1999-11-17 | 王恩林 | Automatic resetting wobbler contact |
US6309258B1 (en) * | 1998-10-23 | 2001-10-30 | Cooper Industries, Inc. | Single pole cable connector |
DE19923722C1 (en) * | 1999-05-22 | 2000-10-12 | Reinhausen Maschf Scheubeck | Contact device for stepping switch pre-selector has contact ring within pre-selector insulating housing cooperating with contact secured in bore in housing wall via positioning washer mounted on contact shaft |
DE10045543A1 (en) * | 2000-09-13 | 2002-03-28 | Degussa | Plug connection for jaw stump models |
CN2624376Y (en) * | 2003-06-20 | 2004-07-07 | 汕头市中南开关厂 | Static pressure device for contact of vacuum explosion chamber of high-voltage circuit-breaker |
-
2004
- 2004-08-26 DE DE102004041317A patent/DE102004041317B3/en not_active Expired - Fee Related
-
2005
- 2005-07-05 DE DE502005002854T patent/DE502005002854D1/en active Active
- 2005-07-05 BR BRPI0506159-8A patent/BRPI0506159A/en not_active IP Right Cessation
- 2005-07-05 KR KR1020067008057A patent/KR101074318B1/en active IP Right Grant
- 2005-07-05 WO PCT/EP2005/007209 patent/WO2006021260A1/en active IP Right Grant
- 2005-07-05 JP JP2007528632A patent/JP4772052B2/en not_active Expired - Fee Related
- 2005-07-05 CN CNB2005800007141A patent/CN100508090C/en active Active
- 2005-07-05 EP EP05770240A patent/EP1782443B1/en active Active
- 2005-07-05 AT AT05770240T patent/ATE386331T1/en active
- 2005-07-05 US US10/574,156 patent/US7497745B2/en active Active
-
2007
- 2007-07-17 HK HK07107658A patent/HK1103257A1/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2006021260A1 * |
Also Published As
Publication number | Publication date |
---|---|
HK1103257A1 (en) | 2007-12-14 |
US7497745B2 (en) | 2009-03-03 |
CN100508090C (en) | 2009-07-01 |
JP4772052B2 (en) | 2011-09-14 |
DE502005002854D1 (en) | 2008-03-27 |
EP1782443B1 (en) | 2008-02-13 |
US20080248700A1 (en) | 2008-10-09 |
KR20070046777A (en) | 2007-05-03 |
ATE386331T1 (en) | 2008-03-15 |
DE102004041317B3 (en) | 2005-10-20 |
KR101074318B1 (en) | 2011-10-17 |
BRPI0506159A (en) | 2006-10-24 |
CN1826674A (en) | 2006-08-30 |
WO2006021260A1 (en) | 2006-03-02 |
JP2008511109A (en) | 2008-04-10 |
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