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US1498293A - Regulating transformer - Google Patents

Regulating transformer Download PDF

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Publication number
US1498293A
US1498293A US495530A US49553021A US1498293A US 1498293 A US1498293 A US 1498293A US 495530 A US495530 A US 495530A US 49553021 A US49553021 A US 49553021A US 1498293 A US1498293 A US 1498293A
Authority
US
United States
Prior art keywords
contact
pieces
lever
cams
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
US495530A
Other languages
English (en)
Inventor
Poirson Eugene
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.)
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Original Assignee
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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 FR520564A priority Critical patent/FR520564A/fr
Priority to GB1919621A priority patent/GB166548A/en
Priority to FR25228D priority patent/FR25228E/fr
Application filed by Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU filed Critical Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Priority to US495530A priority patent/US1498293A/en
Application granted granted Critical
Publication of US1498293A publication Critical patent/US1498293A/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
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices

Definitions

  • EUGENE POIRSON or BELLEVUE, FRANCE, ASSIGNOR T soont'rit DELEGTRO-CHIMIE & DELECTRO-METALLURGIE, or PARIS, rnnnon.
  • This invention has for its object the provision of electrical and mechanical arrangements which eliminate these inconveniences and to permit, in practice, the control of the voltage of the circuit.
  • two magnetic circuits each carrying a primary and a secondary.
  • the primaries are connected in series with the supply circuit and the secondaries are connected in series with the distributing cir- 4O cuit.
  • the multiple contacts are connected with either the two primaries or with the two secondaries or, simultaneously, with both the two primaries and the two secondaries by means of a special switch which is devised in such a manner that (a) On each transformer, the contact does not leave a contact piece before reaching the following one;
  • Fig. l is a diagrammatical view of the improved transformer, applied to a singlephase alternating current system.
  • Figs. 2 and 3 respectively illustrate in vertical section and plan view a form of construction of the switch made in accordance with the characteristic features of this inventlon.
  • Fig. 4 shows, on an enlarged scale, one of the reversible cams under the control of the control lever of the switch.
  • T and T indicate two magnetic circuits having respectively a primary N N and a secondary n 92
  • the primaries N N are connected in series with the conductors of the supply circuit U and the secondaries n W, are connected in series with the distributmg circuit to.
  • the collections of current are effected either on the two primaries (Fig. 1) or on the two secondaries, or at the same time on the two primaries and on the two secondaries, this allowing to increase the range of control.
  • the changes of contact-pieces for varying the length of the active portions of the windings of the transformers are effected by means of a special multiple contact brush switch, which is devised in such a manner that the two contact brushes, respectively associated with the contact-pieces on each transformer, are mechanically coupled for avoiding the simultaneous shortcircuiting of the two parts of the switch.
  • each of'these latter is arranged ⁇ a ⁇ movable contact element 1.
  • These contact elements are radially arranged on a conducting ring 2 and each is composed 01" a laminated brush 3, resiliently connected by springs' l, with the head 6 of a steel tubular rod 5, said head 6 serving as "an abutment.
  • a rpller 7 on which can 'acta cam adapted "to push the said rod without friction and th'elatter slides in abronze sleeve 8 secured Asprin'gb is arranged within the tube 5 fa nd isinounted for working by traction; It is combined with two other "springs 10 which siirround'itand work by compression. This resilient system acts for holding the con tacto'r 1 in released position or for suddenly breaking the contact when the outer thrust produced by the cam ceases to act on the corresponding rod 5.
  • a lon itudinally slotted supporting lever 12 is 'journallefdbn a'shaft and double noting cams '11 are-*pivotally mounted *at 13 in the ends'ofthe-slot o'i'saiid lever, each'cam 11 (Fig. A) controlling group of-c'ontact pieces A and A 7 A cam a'ctua'ting'arm 14 *is mounted on the operatingaxis 15 and is arranged-in the-slot of the lever 12.
  • cams are constructed so as to progressively and successively push the movable brush carrying elements 1 against the contactpie ces corresponding thereto by means of one or the other of two inclined faces 16 formed on each of the said cams, according to'the directionofm'ovement of the lever 12.
  • Inthe train of the working incline of'each cam are provided two notches 17 and 17 These'notc'hes are formed on thecorre'sp'o'nding end of the lever 12, whilst the inclines 16 'arecon's'tituted, as indicated, by the symi'netrical sides'of the rocking cam 11.
  • cams 11 are actuatedby fingers 18 carried by 'the'arm lt and projecting in grooves 19 pro- 'videddn the said cams 1'1 (Fig. 4).
  • Two 1 beveled portions are, moreover, formed on either side of the two notches 17, at each of the ends of the lever 12 so as to connect these notches 17 and 17 with the correspending incline 16 of the cam 11.
  • the operation of the switch is reversible, that is to say a change of the direction of actuation of the arm 14, produces automatically and before any displacement of the lever 12, the shifting or working of the cams 11, so that their opposite inclines 16 project from the leading edge of the lever, with respect to the direction of movement of said lever.
  • the conducting ring 2 serves as'electric connection beween the two groups of contact-.pieces'and each of thefbrushes 3 is electrically connected to this ring 2'by1neans of flexible conducting cables 21 preventing the formation of destructive arcs when the :sliding contact of each tube 5 in its sleeve 8 takes place.
  • the whole of the cont-actor is preferably a group 'of'contact pieces connected at various points in the "length of'on'e of said Windin'gs, a 'fsecondigroup of'contacti'pieces connected at different points in the length of another of said windings, the :conjt 'actipieces ofthere'spective blocks being circularly arranged, radially movable contacts inovable into engagement 'with'the contact pieces, an adjustable member pivotally mounted at'the axis of the circular series of contact pieces, a cam actuating member mounted eo-axially With the first mentioned member, double acting cams pivotally mounted in the first mentioned member adapted to successively engage and actuate the movable contact members associated with the contact pieces of the respective groups during the rotary movement of the first mentioned member in either direction, means carried by the cam actuating member to move said cams into operative position according to the direction of movement of the first mentioned member, and means on the first mentioned member to engage the movable contact members and maintain the

Landscapes

  • Mechanisms For Operating Contacts (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
US495530A 1920-07-15 1921-08-26 Regulating transformer Expired - Lifetime US1498293A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR520564A FR520564A (fr) 1920-07-15 1920-07-15 Dispositif de transformateur statique de courants alternatifs à prises variables permettant de régler la tension en marche
GB1919621A GB166548A (fr) 1920-07-15 1921-07-15
FR25228D FR25228E (fr) 1920-07-15 1921-08-11 Dispositif de transformateur statique de courants alternatifs à prises variables permettant de régler la tension en marche
US495530A US1498293A (en) 1920-07-15 1921-08-26 Regulating transformer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR520564T 1920-07-15
US495530A US1498293A (en) 1920-07-15 1921-08-26 Regulating transformer

Publications (1)

Publication Number Publication Date
US1498293A true US1498293A (en) 1924-06-17

Family

ID=23968983

Family Applications (1)

Application Number Title Priority Date Filing Date
US495530A Expired - Lifetime US1498293A (en) 1920-07-15 1921-08-26 Regulating transformer

Country Status (3)

Country Link
US (1) US1498293A (fr)
FR (2) FR520564A (fr)
GB (1) GB166548A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490523A (en) * 1946-10-03 1949-12-06 Richard F Kneisley Switch
US3014999A (en) * 1957-10-24 1961-12-26 Acec Multi-contact electrical switches

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE552585A (fr) * 1956-01-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490523A (en) * 1946-10-03 1949-12-06 Richard F Kneisley Switch
US3014999A (en) * 1957-10-24 1961-12-26 Acec Multi-contact electrical switches

Also Published As

Publication number Publication date
FR520564A (fr) 1921-06-28
FR25228E (fr) 1923-01-08
GB166548A (fr) 1922-09-14

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