US2521497A - Percussion trip device for electric circuit breakers - Google Patents

Percussion trip device for electric circuit breakers Download PDF

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Publication number
US2521497A
US2521497A US784020A US78402047A US2521497A US 2521497 A US2521497 A US 2521497A US 784020 A US784020 A US 784020A US 78402047 A US78402047 A US 78402047A US 2521497 A US2521497 A US 2521497A
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US
United States
Prior art keywords
rod
percussion
electric circuit
impulse
circuit breaker
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
US784020A
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English (en)
Inventor
Balachowsky Georges
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
Application filed by General Electric Co filed Critical General Electric Co
Application granted granted Critical
Publication of US2521497A publication Critical patent/US2521497A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/42—Driving mechanisms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/11—Tripping mechanism

Definitions

  • a principal object of my invention is the provision of a device for imparting actu ating force to electric apparatus wherein a mechanical impulse is transmitted from a relatively remote point to a member disposed in cooperative relationship with the apparatus to be controlled.
  • Another object of my invention is the provision of a relatively long rod of insulating material interposed between the tripping apparatus of an electric circuit breaker and a source of control energy wherein the source of control energy is utilized to impart motion to a member which in turn collides with one end of the insulating rod to set-up therein a high speed impulse for use in imparting a controlling force to the circuit breaker.
  • Still another object of my invention is the provision ofva high speed control-system for an electric circuit breaker of a relatively high voltage rating wherein the relatively low voltage control circuit is removed from the high voltage conduc tors by an adequate isolating distance.
  • a still further object of my invention contemplates the transmission of a mechanical impulse to the controlling mechanism of an electric circuit breaker through a substantially stationary insulatingrod.
  • FIG. 1 is a schematic representation of a circuit breaker and control therefor comprising the essential features of my invention.
  • v In the drawing there is illustrated an electric circuit interrupting device generally indicated at i for, controlling a circuit comprising conductors 2 and 3' to, which contacts l and 5 are connected.
  • Bridging member 6 is supported by operating rod 'l-on which is mounted a projecting portion 8.
  • a latch 9 is pivotally supported on a stationary pin Ill.
  • Latch 9 is provided with the projection ll which cooperates with the projection 8 on rod l to hold the circuit breaker closed as shown in the drawing.
  • Latch 9 may be provided with a projection 2 for receiving the tripping force as will be more clearly understood as the description proceeds.
  • a relatively light compression spring 27 may be used to bias the latch 9 toward the latching position.
  • An arm [3 is pivotallyv mounted at one end thereof on a stationary ,pin It, Arm i3 may be constructed with an enlarged portion such as is indicated at l5 in the drawing.
  • the enlarged portion lb of arm l3 comprises an impact member for operating the latch.
  • arm l3, latch S and circuit breaker supporting rod '1 will be constructed of metal.
  • rod or impulse transmitting member iii Positioned adjacent the enlarged portion l5 of arm IS in .engaging' relationship therewith is a relatively long.
  • rod or impulse transmitting member iii which, preferably; should be constructed of insulating material such as impregnated wood, resinous material or the like.
  • Insulating rod i6 is supported within a cavity ll in base member l8 and suitablesupports such as l9 may be provided. Constructed within base member !8 is n en n lm In orderto generate a percussion wave in the insulating rod 1 6, it is necessary to provide means for striking the lower endof rod [6. Of course, this particular function may be accomplished in any suitable manner such as by moving a mass at relatively high velocity by means of fluid pressure or byjmechanical means or by electromagnetic means utilizing a source of low voltage power. I have chosen to illustrate the percussion wave generating means as an electrically operated mechanism. comprising, the solenoid 2
  • a mechanical impulse mechanism forimparting actuating-force to the operating means of an electric circuit breaker comprising-a mov able plunger, means for imparting motion to-said plunger, an impulse transmitting rod member of insulating material disposed in thepathof movement of said plunger and normally in spaced relation thereto in which a high speed percussion impulse wave is generated by the collision of said plunger with one end of said rod, and a movable impact member normally engaging the other end of Saidrod atid movabli iii resppnseto an impulse wave" traveling longitudinally therein for imparting actuating force to the operating means of said circuit breaker.
  • a device for controlling the operating means of a high voltage electric circuit breaker from a low voltage source of power comprising a percussion plunger movable in response to cur-- rent from said low voltage source, a movabl impact member'for imparting controlling force to said operating means, and impulse transmitting means of insulating material interposed between said percussion plunger and said impact memberforarresting the movement of said plunger thereby to establish a high speed impulse wave in said transmitting means, said impulse wave being for the purpose of initiating bodily movement of said impact'member in substantially the time required for sound'to travel through said impulse transmitting means after the collision between said plunger and said impulse transmitting nie'ansfor controlling said circuit breaker.
  • a mechanism for imparting activating force to the mechanical tripping mechanism of ahigh Voltage electric circuit breaker comprising a; source of lowvoltage power, a movable percussion plungen electromagnetic means responsi've 'to" current from said low voltage power source for imparting bodilymovement to said plunger, a movable impact member for activating said mechanical tripping mechanism, and a rod of insulatin'g'material coaxially disposed with respect to said plunger and saidimp'act memberfor transmitting to said impact member the percussion impulse wave generated in saidrod by the collision of said plunger andsaid rod thereby to trip said circuit breaker.
  • An electric circuit breaker comprisin'grelatively movable contacts biased to the open position, latchingmeans-for holding said contacts in the closed 'position; a movable impact member'for tripping said latching means, and means for imparting tripping movement to said impact member including an impulse transmitting member having aportion thereof in engagement with said impact member and means for 'causingan impulse percussion wave to travel through said transmitting-'- member" for imparting-movement to said impact member to release said latchingmeans and thereby" to open said circuitbreaker; y a y y 1 GEORGES BALACHOWSKY.

Landscapes

  • Electrophonic Musical Instruments (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
US784020A 1947-02-06 1947-11-04 Percussion trip device for electric circuit breakers Expired - Lifetime US2521497A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR944462T 1947-02-06

Publications (1)

Publication Number Publication Date
US2521497A true US2521497A (en) 1950-09-05

Family

ID=9471712

Family Applications (1)

Application Number Title Priority Date Filing Date
US784020A Expired - Lifetime US2521497A (en) 1947-02-06 1947-11-04 Percussion trip device for electric circuit breakers

Country Status (3)

Country Link
US (1) US2521497A (fr)
FR (1) FR944462A (fr)
GB (1) GB655378A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646478A (en) * 1949-06-24 1953-07-21 Gen Electric Switch closing mechanism

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4870232A (en) * 1988-08-08 1989-09-26 Hoogland John A Extension control for a switch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1277799A (en) * 1918-07-13 1918-09-03 Isaac Newton Weber Mechanical toy.
US1349429A (en) * 1919-05-14 1920-08-10 Murray Ethelbert Thoma Ruthven Electric switch
US1658695A (en) * 1924-01-12 1928-02-07 Gen Electric Circuit-controlling device
DE470946C (de) * 1929-02-07 Siemens Schuckertwerke Akt Ges Einrichtung an einem mit einem Schnellschalter in Reihe liegenden Selbstschalter
US2342019A (en) * 1942-12-14 1944-02-15 Exhibit Supply Company Amusement apparatus
US2480945A (en) * 1946-09-16 1949-09-06 Bendix Aviat Corp Electronic musical instrument

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE470946C (de) * 1929-02-07 Siemens Schuckertwerke Akt Ges Einrichtung an einem mit einem Schnellschalter in Reihe liegenden Selbstschalter
US1277799A (en) * 1918-07-13 1918-09-03 Isaac Newton Weber Mechanical toy.
US1349429A (en) * 1919-05-14 1920-08-10 Murray Ethelbert Thoma Ruthven Electric switch
US1658695A (en) * 1924-01-12 1928-02-07 Gen Electric Circuit-controlling device
US2342019A (en) * 1942-12-14 1944-02-15 Exhibit Supply Company Amusement apparatus
US2480945A (en) * 1946-09-16 1949-09-06 Bendix Aviat Corp Electronic musical instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646478A (en) * 1949-06-24 1953-07-21 Gen Electric Switch closing mechanism

Also Published As

Publication number Publication date
GB655378A (en) 1951-07-18
FR944462A (fr) 1949-04-06

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