US2745992A - Electric switching apparatus for high tension - Google Patents

Electric switching apparatus for high tension Download PDF

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Publication number
US2745992A
US2745992A US451586A US45158654A US2745992A US 2745992 A US2745992 A US 2745992A US 451586 A US451586 A US 451586A US 45158654 A US45158654 A US 45158654A US 2745992 A US2745992 A US 2745992A
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US
United States
Prior art keywords
switching
contacts
tubular members
section
interconnecting
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
US451586A
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English (en)
Inventor
Hendrik A Hidde
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.)
COQ NV
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COQ NV
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Filing date
Publication date
Application filed by COQ NV filed Critical COQ NV
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Publication of US2745992A publication Critical patent/US2745992A/en
Anticipated expiration legal-status Critical
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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
    • H01H33/027—Integrated apparatus for measuring current or voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/0356—Mounting of monitoring devices, e.g. current transformers

Definitions

  • the annular core in a plurality of turns, so that the primary winding of the transformer is of the multiturn type.
  • FIG. l is a somewhat diagrammatic elevation, partly in ELECTRIC S FOR HIGH section, of a switch or circuit breaker in accordance with 5 the invention, the switching element thereof being partly Hendrik A. .Hidde Nijland, Laren, Netherlands, assignor m d fr m th Casing, and
  • a company of Fig. 2 is a vertical section, drawn to a larger scale, of the Netherlands that part of the switching element, which is essential as far as the invention isconcerned.
  • 1 designates a metal casing which dur- Claims priority, application Netherlands August 24, 1953 ing operation of the apparatus is filled with mineral oil. Projecting into said casing and insulatedly passed through 6 Claims (CL 317 157'6) the wall thereof are lead-in conductors, whose pin-shaped terminals are indicated by 2 and 3, respectively.
  • Said The invention relates to electric switching or circuitconductors are connected to a system of busbars (not breaking apparatus for high tension, of the known type shown) accommodated in a box 4, and to a cable 5, comprising in combination: respectively.
  • a stationary metal casing provided with a detachable Detachably mounted in the casing is a composite switchcover and with leading-in conductors insulatedly passed ing element suspended from the cover plate 6 of the casthrough its wall, said casing being filled, or adapted to ing 1.
  • This element is composed of two sections, the be filled, with an insulating fluid such as mineral oil, and first comprising: a vertical, insulating tube 7 accommodatat least one composite switching element secured to said ing a switching contact 8, an axially movable, pin-shaped cover and comprising a stationary switching contact, a switching contact 9 cooperating therewith, and a conmovable switching contact adapted to cooperate therenecting contact 10 connected to the switching contact 8 with, two connecting contacts electrically connected with and adapted to cooperate with the terminal 2, the second the said switching contacts, respectively, and a current section comprising: two vertical, insulating tubular memtransformer electrically inserted intermediate one of said bers 11, 12, two transverse, insulating tubes 13, 14 interswitching contacts and one of said connecting contacts, connecting said tubular members, a second connecting said connecting contacts cooperating with terminals procontact 15 adapted to cooperate with the terminal 3, and a vided on the leading-in conductors so as to permit the current transformer comprising a primary winding 16, switching element
  • the, or each, composite switching element is composed of 15 and is passed in a plurality of turns through the transtwo sections electrically interconnected by readily sepverse tubes 13, 14, so as to also constitute a multiturn arable members, the first section comprising the switching primary winding of the current transformer.
  • the second section can be readily replaced positioning of the primary winding 16 of the current by a similar section comprising a difierent current trans- KO transformer after the tubular members 11', 12 and the former, without it being necessary for the switch proper transverse tubes 13, 14 have been assembled and secured to be dismantled. to the plate 19.
  • the slots 26, 27 are closed by slotted, insui. e. the section which comprises the current transformer lating partial sleeves 28 and 29, respectively, slidably and the second connecting contact, will be composed of mounted on the tubular members 11 and 12, respectively.
  • the second Section comprises at least two transverse current transformer both to the cover 6 and to the block tubes, the conductor interconnecting the connecting con- 23, whereupon the switching element can again be intact and the connecting member may be passed through serted into the casing.
  • An electric circuit breaker for high tension comprising a stationary metal casing adapted to be filled with an insulating fluid, a cover detachably mounted on said casing, leading-in conductors insulatedly passing through the walls of the casing, a switching element composed, of two individual sections suspended from and independently attached to said cover and located in said casing, a first one of said sections including a current transformer, readily separable members, one of which is mounted on one of the sections, electrically interconnecting the two sections of the switching element, means for attaching the first section to the cover for ready removal therefrom after it has been removed from the casing, and a pair of cooperating plug and bushing contacts between the leading-in conductors and the respective sections of the switching element, said plug and bushing contacts permitting the cover together with the two sections of the switching element to be bodily removed from the casing and disconnected from the conductors while the leading-in conductors are energized.
  • the first section of the switching element comprises a plate member detachably secured to the cover and disposed in parallel relation therewith, two insulating tubular members secured to said plate, one of said tubular members housing and supporting one of said contacts of one of the pairs of plug and bushing contacts and the other supporting one of the said readily separable conductive members for electrically interconnecting both sections of the switching element, at least one insulating transverse tube interconnecting the two tubular members, a further conductor interconnecting said contact and said conductive member and passing through said transverse tube, at
  • the first section of the switching element comprises a plate member detachably secured to the cover and disposed in parallel relation therewith, two insulating tubular members secured to said plate, one of said tubular members housing and supporting one of said contacts of one of the pairs of plug and bushing contacts and the other supporting one of the said readily separable conductive members for electrically interconnecting both sections of the switching element, at least two insulating transverse tubes interconnecting said contact and said conductive member and passing at least twice through one transverse tube and at least once through the other transverse tube, at least one annular magnetic core surrounding the first mentioned transverse tube and a secondary winding enclosing said core, said interconnecting conductor, said core, and said winding constituting together the said current transformer.
  • the first section of the switching element comprises a plate member detachably secured to the cover and disposed in parallel relation therewith, two insulating tubular members secured to said plate, one of said tubular members housing and supporting one of said contacts of one of the pairs of plug and bushing contacts and the other supporting one of the said readily separable conductive members for electrically interconnecting both sections or" the switching element, at least two insulating transverse tubes interconnecting the two tubular members, said transverse tubes extending into fitting apertures of the tubular members, a further conductor interconnecting said contact and said conductive member and passing at least twice through one transverse tube and at least once through the other transverse tube, slots being provided in said tubular members opposite said apertures and permitting said interconnecting conductor to be properly positioned after the insulating tubular members and transverse tubes have been assembled to a unit, at least one annular magnetic core surrounding the first mentioned transverse tube and a secondary winding enclosing said core, said interconnecting
  • An electric circuit breaker in accordance with claim 2 having an insulating tubular member housing the cooperating switching contacts and one of the contact of one of the pairs of plug and bushing contacts and supporting one of the said readily separable conductive members for electrically interconnecting both sections of the switching element, a plate member detachably secured to the cover and disposed in parailel relation therewith, two insulating tubular members secured to said plate, one of said tubular members housing and supporting one of said contacts of one of the pairs of plug and bushing contacts and the other supporting the other one of the said readily separable conductive members, at least one insulating transverse tube interconnecting the latter two tubular members, a further conductor interconnecting said latter contact and said other conductive member and passing through said transverse tube, at least one annular magnetic core surrounding said transverse tube and a secondary winding enclosing said core, said interconnecting conductor, said core and said winding constituting together the said current transformer, and all three tubular members having their axes lying parallel to each other and contained in

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Transformers For Measuring Instruments (AREA)
US451586A 1953-08-24 1954-08-23 Electric switching apparatus for high tension Expired - Lifetime US2745992A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2745992X 1953-08-24

Publications (1)

Publication Number Publication Date
US2745992A true US2745992A (en) 1956-05-15

Family

ID=19875537

Family Applications (1)

Application Number Title Priority Date Filing Date
US451586A Expired - Lifetime US2745992A (en) 1953-08-24 1954-08-23 Electric switching apparatus for high tension

Country Status (4)

Country Link
US (1) US2745992A (forum.php)
FR (1) FR1083349A (forum.php)
GB (1) GB753639A (forum.php)
NL (1) NL80995C (forum.php)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080226A (en) * 1936-01-24 1937-05-11 Gen Electric Electric switch gear
US2519021A (en) * 1947-09-05 1950-08-15 Mcgraw Electric Co Combined transformer and repeating circuit breaker

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2080226A (en) * 1936-01-24 1937-05-11 Gen Electric Electric switch gear
US2519021A (en) * 1947-09-05 1950-08-15 Mcgraw Electric Co Combined transformer and repeating circuit breaker

Also Published As

Publication number Publication date
GB753639A (en) 1956-07-25
NL80995C (forum.php)
FR1083349A (fr) 1955-01-07

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