US2748212A - Single-pillar scissor-type disconnect switch for high tension installations - Google Patents
Single-pillar scissor-type disconnect switch for high tension installations Download PDFInfo
- Publication number
- US2748212A US2748212A US512079A US51207955A US2748212A US 2748212 A US2748212 A US 2748212A US 512079 A US512079 A US 512079A US 51207955 A US51207955 A US 51207955A US 2748212 A US2748212 A US 2748212A
- Authority
- US
- United States
- Prior art keywords
- scissor
- pillar
- high tension
- disconnect switch
- axles
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/34—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact adapted to engage an overhead transmission line, e.g. for branching
- H01H31/36—Contact moved by pantograph
Definitions
- This invention relates to a so-called single-pillar scissor-type disconnector for high tension installations and is characterized in that there are two parallel pairs of scissors, each pair of scissors having two spaced-apart arms swingable in the same direction about parallel axles mounted in the insulator head, one of said arms being divided into two parts by a knee joint, the free ends of said arms being connected by hinge joints to rods which cross and are pivoted to each other, the ends of said intersecting rods beyond the pivot point providing a yoke contact.
- An expansion spring is positioned between said hinge joints.
- Fig. 1 is a front elevation of the disconnector, positioned vertically
- Fig. 2 is a diagrammatic front elevational view showing the disconnector of Fig. 1 in its connected position in full lines and in its collapsed and disconnected position in broken lines,
- Fig. 3 is a diagrammatic front elevation of the disconnector, positioned horizontally with the connected arrangement shown in full lines and the collapsed and disconnected arrangement shown in broken lines, and
- Fig. 1a is an end view showing the pair of the connectors mounted on a single insulator head.
- the insulator head 1 carries two axles 2 and 3, the axle 3 being positioned above the axle 2 a distance which is at least equal to the width of the scissor arms 4 and 5.
- the arms 4 and 5 are mounted on the axles 2 and 3 to swing in the same direction (counterclockwise) through an angle of about to bring them to substantially parallel positions as shown in Fig. 2.
- Arm 4 is shorter than arm 5 and is connected to the link 9 by the knee joint 10 comprising the stop 11 which prevents the link 9 from swinging in one direction with respect to arm 4 beyond the alined position shown in Fig. 1 but permits it to swing in the opposite direction to the position shown in Fig. 2.
- the rods 6 and 7 are hinged to the ends of the link 9 and the arm 5 respectively at the joints 12 and 13 respectively.
- Rods 6 and 7 cross and are pivoted to each other at the joint 8 and their free ends 6a and 7a form the yoke which serves to grasp the contact piece 14 of the line 15.
- the spring 16 is compressed between the joints 12 and 13 and tends to push them apart.
- the arms 4 and 5 are, as stated above, connected to axles 2 and 3 in the insulator head 1, said axles being interlocked (not shown) within the insulator head so that they rotate together in the same direction.
- a motor (not shown) is connected to rotate the axles 2 and 3.
- arms 4 and 5 are swung to the horizontal position shown in Fig. 2 thereby lowering the rods 6 and 7 away from the contact piece 14 to the collapsed position shown in Fig. 2 and breaking the connection.
- a single-pillar scissor-type disconnector for high tension installations comprising an insulator head, two spaced apart rotatable axles mounted in said head, means interlocking said axles for simultaneous rotation in the same direction, means for rotating said axles, a pair of arms of substantially equal length mounted on said axles and rotatable therewith, one of said arms being rigid and the other being divided into two portions by a knee joint permitting the portion remote from the axle to swing toward the other arm, rods hinged to the free ends of said arms, said rods crossing each other and being pivoted to each other at the point of intersection, and a spring positioned between said hinges.
- a single-pillar scissor-type disconnector as defined in claim 1 in which two pairs of arms and associated rods and spring are mounted on said axles parallel to each other.
Landscapes
- Orthopedics, Nursing, And Contraception (AREA)
- Insulators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH2748212X | 1954-06-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2748212A true US2748212A (en) | 1956-05-29 |
Family
ID=4571475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US512079A Expired - Lifetime US2748212A (en) | 1954-06-10 | 1955-05-31 | Single-pillar scissor-type disconnect switch for high tension installations |
Country Status (4)
Country | Link |
---|---|
US (1) | US2748212A (de) |
CH (1) | CH320102A (de) |
DE (1) | DE1003830B (de) |
FR (1) | FR1125310A (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3784767A (en) * | 1970-03-20 | 1974-01-08 | Siemens Ag | Disconnect switch |
US10515772B2 (en) * | 2016-08-05 | 2019-12-24 | Abb Schweiz Ag | Disconnector and manufacturing method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE476345C (de) * | 1926-04-21 | 1929-05-16 | Sachsenwerk Licht & Kraft Ag | Trennschalter |
CH296803A (de) * | 1950-02-17 | 1954-02-28 | Siemens Ag | Trennschalter. |
AT172885B (de) * | 1950-10-19 | 1952-10-25 | Licentia Gmbh | Elektrischer Scherentrennschalter |
-
1954
- 1954-06-10 CH CH320102D patent/CH320102A/de unknown
- 1954-06-25 DE DEA20604A patent/DE1003830B/de active Pending
-
1955
- 1955-05-26 FR FR1125310D patent/FR1125310A/fr not_active Expired
- 1955-05-31 US US512079A patent/US2748212A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
None * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3784767A (en) * | 1970-03-20 | 1974-01-08 | Siemens Ag | Disconnect switch |
US10515772B2 (en) * | 2016-08-05 | 2019-12-24 | Abb Schweiz Ag | Disconnector and manufacturing method |
Also Published As
Publication number | Publication date |
---|---|
DE1003830B (de) | 1957-03-07 |
FR1125310A (fr) | 1956-10-29 |
CH320102A (de) | 1957-03-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US1988120A (en) | Disconnecting switch | |
US2748212A (en) | Single-pillar scissor-type disconnect switch for high tension installations | |
WO2017133457A1 (zh) | 旋转式双断点开关接触系统接线改良结构 | |
US2363360A (en) | Circuit interrupter | |
CN103617927A (zh) | 一种可快速分断的大开距触头结构 | |
US7804033B2 (en) | Disconnector for an electrical substation handling voltages in excess of 1100kV | |
US2697144A (en) | High voltage switch | |
US2462342A (en) | Operating mechanism for electrical switches | |
US1949019A (en) | High-tension switch | |
US3504142A (en) | High voltage electric switch | |
US3296358A (en) | Strut-suspension conductor support | |
US3047681A (en) | Current collector | |
US2741672A (en) | Dual axis rotatable blade switch | |
US2727102A (en) | Twin trolley crossover | |
US2363307A (en) | Circuit interrupter | |
US3634634A (en) | Disconnect switch for electric power systems | |
US4339636A (en) | Disconnecting switch having improved switch-blade hinging structure | |
US2116983A (en) | Switch construction | |
CN105645277B (zh) | 折叠式隔离开关用吊架 | |
US2288529A (en) | Electrical switch | |
US2791651A (en) | Electrical switches | |
US2426009A (en) | Electric switch | |
US1845783A (en) | Disconnecting switch | |
US2194021A (en) | Electric switch | |
US2248876A (en) | Link motion retracting blade switch |