US1614115A - Electric switching apparatus - Google Patents

Electric switching apparatus Download PDF

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Publication number
US1614115A
US1614115A US524844A US52484421A US1614115A US 1614115 A US1614115 A US 1614115A US 524844 A US524844 A US 524844A US 52484421 A US52484421 A US 52484421A US 1614115 A US1614115 A US 1614115A
Authority
US
United States
Prior art keywords
switching device
contacts
links
movement
circuit
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
Application number
US524844A
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English (en)
Inventor
Henry G French
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DENDAT401084D priority Critical patent/DE401084C/de
Application filed by General Electric Co filed Critical General Electric Co
Priority to US524844A priority patent/US1614115A/en
Priority to FR560298D priority patent/FR560298A/fr
Priority to GB35191/22A priority patent/GB191048A/en
Application granted granted Critical
Publication of US1614115A publication Critical patent/US1614115A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00—Switchgear having carriage withdrawable for isolation
    • H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H02B11/173—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal drawer type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B11/00—Switchgear having carriage withdrawable for isolation
    • H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
    • H02B11/127—Withdrawal mechanism

Definitions

  • My invention relates to improvements in electric switching apparatus and an object of my invention is to provide an improved arrangement of switching apparatus which is particularly adapted for enclosed unit panel construction and arranged to provide.
  • Figure 1 is a side'elevation illustrating an embodiment of my invention, the switching apparatus being in position within a supporting structure of which one sideis removed for clearness;
  • Fig. 2- is a front elevation of the embodiment of'my invention illustrated in Fig. 1, the front or panel of the supporting structure being removed for clearness;
  • Fig. 3 is a side elevation similar to Fig. 1, but'with the switching apparatus withdrawn from the. supporting structure;
  • Fig. 4 is a side elevation of a modification oi the embodiment of my invention shown in Fig. 1, and Fig. 5 is a. side elevation simi lar to Fig. i but with the switching apparatus withdrawn from the supporting structurc.
  • a structure or housing 1 which may be made up of plates 2 and angles 3 suitably fastened together has mounted therein a'terminal board 4.
  • the terminal board 4 is provided with terminals 5, to which are secured bus-bars 6 running through the structure 1 through openings in the sides thereof and also with terminals 7 to which areconnected the conductors ot a circuit 8 which is adapted to be connected to the bus-bars 6.
  • suitable devices such as transformers 9 arranged to be connected to meters, relays, etc., which may be mounted on the front plate or panel 10 of the structure 1.
  • an electric switching device or circuit breaker 11 which 15 here shown as of thetype hav-' mg cooperating hxed and movable contacts 12 and 13, respectively, separable in an insulating fluid such as oil.
  • the switching device 11 is supported in the structure 1 so as to be movable into and out ofthe structure in a manner hereinafter more fully doscribed.
  • the fixed contacts 12 of the switching device 11 are connected by leads 14 to terminals 15 mounted on a terminal board 16. mounted to move with the switching device 11, the terminals 15 being provided with contact jaws or clips 17 ary ranged toregister with and engage fixed studs or contacts 18 on the terminals 5 and 7.
  • the switching device 11 will be disconnected from the bus-bars6 and the conductors 8 on moving the switching device 11 outwardly 'from'the structure 1 and connected on mov ing the switching device 11 inwardly into the structure 1.
  • a fixed barrier 19 mounted in the structure l is , a fixed barrier 19 provided with apertures through which the contact cli s 17 may pass to engage the contacts 18.. T ie barrier 19 thus acts to render the contacts 18 inaccessible when the switching device 11 is moved or swung out into the position shown in Figs. 3 and 5. In this manner the v danger of the operator coming into contact with current carrying members such as the contacts 18 connected to the bus-bars G is practically eliminated.
  • any number of the structures 1 equipped as shown may be arranged for example side by side with the bus-bars 6 running through all of them.
  • These units may be mounted on a wall or any suitable supporting framework in any suitable manner, as for example, by bolts through holes 20 in the plate and angle construction of the structure 1, the number of independent switching units or switchboards thus arranged depending upon'thenumher of circuits 8 it is desired to connect to the busbars 6, each unit constituting a complete independent switchboard or unit panel for the circuit it is arranged to control.
  • the switching device 11 is supported for movement into and out of the structure 1 by a linkage mechanism comprising links 21 arranged on opposite sides of the switching device 11 and preferably mounted within the structure 1.
  • Each of the links 21 has the same length between fixed pivotal points 22 within the structure 1 and. pivotal points 23 where the links 21 are connected to the sup-- porting members 2% of the switching device 11.
  • the pivotal points 22 and 23 are arranged so that the links 21 are-substantially parallel inall positions thus insuring the correct alignment of the'switching device 11 as it is moved into and out of the structure 1.
  • energy storing means such as springs 25 which during the outward movement of the switching device 11 are operative to insure auniform movement and absorb shocks and to store energy for assisting the inward movement of the switching device 11.
  • the path of movement of the switching device 11 into and out of the structure 1, or the path of any point thereof such as the rear pivotal point 23 is substantially an arc of a circle whose radius is equal to the length of one of the links 21, this path being shown for example by the broken line 26, Fig. 3.
  • the shorter the length of the links 21 the greater will be the extent of vertical movement of the-switching device 11 in its outward and inward movements and.
  • This linkage mechanism comprises a plu rality of links arranged on opposite sides of the switching device 11 and preferably with in the structure 1.
  • Links 27 and 28 are connected to the switching device 11 at the pivotal points 23 of the supporting members 2%; the links'28 have an additional arm 25) rigidly relatcdth'ereto, preferably atright angles.
  • the links 27 and 28 are connected at their lower ends by paralleling links 30 at pivotal points 31.
  • the lengths of the links 27. 28 are equal and the length of the paralleling links 30 between the pivotal points 31 is the same as the distance between the pivotal points 23. Consequently, the links 27, 28 will be substantially parallel in all positions thus insuring the correct alignment of the switching device 11 as it is moved into and out of the structure 1.
  • the pivotal points 31 are connected to the structure 1 by the links 32 at fixed pivotal points 33 and the arms 29 ot the links 28 are 'n'e'lerahly provided with rollers 34 arranged to bear upon and roll over a supporting member or track 350i the structure 1 as the switching device 11 is moved into and out of the structure. lVith this arrangement it is obohvious that as the switching device 11 is moved outward from the position shown in Fig. at to that shown in 5 the pivotal points 31 revolve about the fixed pivotal points 33 as the roller 34 moves over the supports 35, thereby varying the distance between the line of the pivotal points 31 or paralleling links 30 and the support- 35.
  • the structure hare energy storing means such as springs 37 which during the outward movement of the switching device 11 are operative to insure a uniform movement and absorb shocks and to store energy for assisting in the inward movement of the switching device 11.
  • a panel 10 which is provided with suitable handles 38 to facilitate the operation of moving the switching device 11 into and llt) I out of the structure 1.
  • lugs or stops 39 preferably secured to the supporting members 24 are arranged to engage the' front levers 21 of Figs. 1, 2 and 3 or the front levers 27 of Figs. 4 and 5 upon a predetermined outward movement of the switching device 11.
  • a locking arrangement comprising a shaft journaled in the supporting members 24 andalso preferably acting as the pivotal supports 23 of the front links'21 of Figs. 1, 2 and 3 orthe links 27 of Figs. 4 and 5.
  • Mounted on the shaft 40 to turn therewith and preferably near the'ends there of are locking links 41 provided at one end with studs or projections 42 arranged to engage catches or stops such as plates 43 suitably supported by or mounted on the .structure 1.
  • the shaft '40 is provided preferably intermediate its bearings with a double arm lever or bell crank 44 whereby the shaft 40 may be turned to move the studs 42 out of engagement with the catches 43,
  • the other arm 46 of the crank 44 is arranged to be engaged by a part of the contactoperating mechanism of the switching device 11 when the contacts 12-43 are inthe circuit closed position as, for example. the movablecontact operatingarm 47.
  • the contact operating arm 47 prevents movement of the arm 46 of the crank 44 so that the shaft 40 cannot be turned to release the studs 42 from the catches 43.
  • the contacts 1213 must be placed in the circuit opened position by actuating the .contact operating mechanism of the switching device 11 either by electroresponsive devices or a hand lever 48 in a manner well known to the art. This causes the operating arm 47 to drop down far enough to permit the shaft 40 to be turned a so as to release the studs 42 from the catches 43, see Figs. 3 and 5.
  • alocking means comprising a. hook or 'eye 49 preferably secured to the panel 10 adacent the arm 44 of the operating crank and adapted when the switching device 11 is lockedwithin the structure '1 to receive a locking bar or other device such as a padlock to prevent the movement of the crank 44 even though the position which separates contacts 12 and 13.
  • an electric switching device provided with cooperating fixed and movable contactsfor controlling said circuits, a linkage mechanism arranged to support said device and ing said fixed contacts to said.
  • circuits arranged to be disconnected on the outward movement of said device and connected on ,;the inward movement of the same, means 'switching device comprisin Jill for limiting; the extent of outward movement of said device, and means for locking said mechanisinto hold said device in said structure adapted to be released when the'contacts of said device are in the circuit opened position and arranged to prevent connecting said connecting means on the inward movement of said device when the contacts thereof arc in circuit closed position.
  • Switching means for electric circuits comprising a housing through the interior of which said circuits pass, an electric cooperating tixed and movable contacts, a linkage mecln nism arranged to support said device and adapted to be operated to move the same into and out of said housing, means for connecting said fixed contacts to said circuits arranged to be disconnected on the outward movement of said device and connected on the inward movement of the same, a panel mounted to move with said device and adapted to form a part of said housing, means for locking said mechanism to hold said. device in said housing adapted to be released when the contacts of said device are in the. circuit opened position, means forlimiting the ex tent of outward movement of said device, and means in which energy is stored during the outward movement of the device'acting to absorb shocks. during said outward movement and to assist in the inward movement of the device.
  • Switching means for electric circuits comprising a switch supporting structure, an electric switching device provided with cooperating relatively,movable contacts for controlling said circuits, a linkage mechanism arranged to support said device and adapted to be operated to move the same into and out of said structure, means for connectingsaid contacts to said circuits arranged to be disconnected on the outward movement of said device-and connected on the inward movement of the same, means for locking said device in-said structure against outward movement therefrom while said contacts are in the circuit closed p'osi tion, and means for limiting the outward movement of said mechanism.
  • Switching means vtor electric circuits comprising a housing through the interior of which said circuits pass, an electric switching device provided with relatively movable cooperating contacts for. controlling said circuits.
  • a linkage mechanism mounted in said housing and supporting said device adapted to be operated to move the same into' and outof, said housing, a panel mounted to move with said device and adapted to form a part of said housing, means for connecting said contacts to said circuits, and means for locking said mechanism in said house ing against outward movement therefrom while said contacts are in the circuit closed oosition.
  • a circuit breaker for controlling said load circuit, a linkage mechanism mounted in said housing arranged to support said circuit breaker and adapted to be operated to move the same into and out of said housing, means for connecting said circuit breaker to said circuits arranged to be disconnected on the outward movement of said breaker and connected on the inward movement of the same, and means for locking said mechanism in said housing to hold said breaker therein adapted to be released when the breaker is in the circuit opened position.
  • a supply circuit and a load circuit a housing through the interior of which said circuits pass, an electric switching device provided with relatively movable cooperating contacts for control ling said load circuit, a linkage mechanism arranged to support said device and adapted to be operated to move the same into and out of said housing, said contacts to said circuits arranged to be connected on the inward movement of said device and disconnected on the outward movement of the same. and means for limiting the extent of said outward movement, means for locking said mechanism to hold said device in said housing adapted to be released when said contacts are in the-circuit opened position.
  • Switching means for an electric circuit comprising a switch enclosing structure, a
  • switch including a receptacle containing insulating thud and having relatively movable contacts immersed therein for controlling said circuit, and a linkage mechanism secured to said switch and to said structure for supporting said switch and permitting a limited withdrawal of the switch from the structure.
  • Switching means for an electric circuit comprising a stationary supporting structure having a plurality of contacts, a movable switch structure having a plurality of contacts adapted in certain positions of said switch structure to cooperate with said first contacts, and a linkage mechanism pivoted to said supporting structure and to said switch structure, said linkage mechanism comprising a member having a shiftable point of contact with said supporting structure whereby saidswitch structure is caused to move in a substantially rectilinear path.
  • Switching means for anelectric cir- Ti l means for connecting ill) its
  • suiil support-r mg sirucuzre having u truck and one of said parallel links having; an extension thereon previrlecl with :1 roller for engaging said truck, and energy absorbingnieans actuated by an outward movement of said switch structure for absorbing shock and for assisting the return movement of said switch structure 1n witness whereof, I have hereunto Set my hand this lith (lay of December, 1921. HEN KY G. FRENCH.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Casings For Electric Apparatus (AREA)
  • Patch Boards (AREA)
US524844A 1921-12-27 1921-12-27 Electric switching apparatus Expired - Lifetime US1614115A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DENDAT401084D DE401084C (enrdf_load_stackoverflow) 1921-12-27
US524844A US1614115A (en) 1921-12-27 1921-12-27 Electric switching apparatus
FR560298D FR560298A (fr) 1921-12-27 1922-12-22 Perfectionnements apportés aux interrupteurs électriques
GB35191/22A GB191048A (en) 1921-12-27 1922-12-27 Improvements in and relating to electric switching apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US524844A US1614115A (en) 1921-12-27 1921-12-27 Electric switching apparatus

Publications (1)

Publication Number Publication Date
US1614115A true US1614115A (en) 1927-01-11

Family

ID=24090884

Family Applications (1)

Application Number Title Priority Date Filing Date
US524844A Expired - Lifetime US1614115A (en) 1921-12-27 1921-12-27 Electric switching apparatus

Country Status (4)

Country Link
US (1) US1614115A (enrdf_load_stackoverflow)
DE (1) DE401084C (enrdf_load_stackoverflow)
FR (1) FR560298A (enrdf_load_stackoverflow)
GB (1) GB191048A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544314A (en) * 1948-10-28 1951-03-06 Gen Electric Switchgear drawout mechanism
US2699966A (en) * 1945-02-16 1955-01-18 Jeffrey Mfg Co Underground mine apparatus and control housing therefor
US3397293A (en) * 1965-08-13 1968-08-13 Gen Electric Metal-clad switchgear employing vacuum type circuit interrupters

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967559C (de) * 1938-05-11 1957-11-21 Siemens Ag Mess-, Steuer- und Meldeeinrichtung
DE1072681B (de) * 1952-07-28 1960-01-07 LICENTIA Patent-Verwaltungs-G. m.b.H., Frankfurt/M Gekapselte Schaltanlage
DE1027278B (de) * 1953-02-27 1958-04-03 Int Standard Electric Corp Anordnung einer Mehrzahl von Montageplatten in einem Gehaeuse oder Gestell zur Aufnahme elektrischer Einzelteile
DE1008009B (de) * 1953-04-02 1957-05-09 Landis & Gyr Ag Elektrisches Registriergeraet in einem an einer Wand zu montierendem Gehaeuse
DE1029900B (de) * 1953-07-24 1958-05-14 Lorenz C Ag Vielfach-Steckverbindung fuer Fernmeldegeraete mit Kontaktfederleisten und parallel bewegten Kontaktmessern, insbesondere fuer Eisenbahn-sicherungsanlagen
DE1163946B (de) * 1961-01-31 1964-02-27 Calor Emag Elektrizitaets Ag Elektrisches Schaltgeraet mit einem in einem Isolierstoffblock angeordneten herausnehmbaren Schalteinsatz
EP0551195A1 (en) * 1992-01-07 1993-07-14 Bml Enterprises Ltd. An electrical switch and motor
CN102593743A (zh) * 2012-02-23 2012-07-18 王秀华 110kV真空/六氟化硫移动小车式断路器及配装框架间隔

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2699966A (en) * 1945-02-16 1955-01-18 Jeffrey Mfg Co Underground mine apparatus and control housing therefor
US2544314A (en) * 1948-10-28 1951-03-06 Gen Electric Switchgear drawout mechanism
US3397293A (en) * 1965-08-13 1968-08-13 Gen Electric Metal-clad switchgear employing vacuum type circuit interrupters

Also Published As

Publication number Publication date
GB191048A (en) 1923-12-20
FR560298A (fr) 1923-10-02
DE401084C (enrdf_load_stackoverflow)

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