US3312918A - Remotely operated sealed circuit interrupter - Google Patents

Remotely operated sealed circuit interrupter Download PDF

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Publication number
US3312918A
US3312918A US482812A US48281265A US3312918A US 3312918 A US3312918 A US 3312918A US 482812 A US482812 A US 482812A US 48281265 A US48281265 A US 48281265A US 3312918 A US3312918 A US 3312918A
Authority
US
United States
Prior art keywords
circuit
casing
movable contact
circuit interrupter
arm
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
US482812A
Other languages
English (en)
Inventor
Jr John J Astleford
Jr Edward R Ronan
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.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to US482812A priority Critical patent/US3312918A/en
Priority to JP1966080107U priority patent/JPS4216641Y1/ja
Application granted granted Critical
Publication of US3312918A publication Critical patent/US3312918A/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
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/12—Auxiliary contacts on to which the arc is transferred from the main contacts
    • H01H33/121—Load break switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding

Definitions

  • the lower portion 14 of the casing 10 has extending therethrough a conductor 18 providing a fixed pivot shaft
  • the conductor 18 has'attached to the upper end thereof, and freely rotatable thereabout, a circuit making blade or movable contact arm 20.
  • an actuating lever or arm 22 mounted on the upper end of the conductor 18 and freely rotatable thereabout is mounted an actuating lever or arm 22.
  • the lever 22 has a pin 24 therein near its outer end and the circuit making and breaking blade 20 also has a pin 26 therein intermediate its ends.
  • Overcenter spring actuating means 25 including an overcenter tension spring 28 is connected between the pins 24 and 26.
  • a barium ferrite permanent magnet 30 is attached to the outer end of the lever or actuating arm 22 by means of a pin 32.
  • the upper part 12 of the casing 10 has extending therethrough a conducting element 34.
  • the conducting element 34 is connected by means of a strap conductor 36 to a jaw-type stationary contact including a pair of stationary contact fingers 38.
  • the stationary contact 37 is afiixed to the conducting strap 36 and to the upper part 12 of the housing 10 by means of a screw 40.
  • the stationary contact 37 is fixedly mounted in the upper part 12 of the housing 10 on an integral supporting portion 39 of the sectional part 12 of the housing 10 and does not rotate.
  • the elements described hereinbefore have been mounted in the respective portions of the casing 10.
  • the parts 12 and 14 of the casing 10, which are made of a transparent plastic or glass, are sealed together along the line 16. After the two parts 12 and 14 of the casing 10 have been sealed together, the casing is evacuated of air through the tip-off tube 44.
  • the circuit interrupter 9 provided by this invention is intended for use in a primary or supply voltage lines of the transformer (not shown) mounted underground. Such a circuit breaker 9 is required to interrupt voltages of the order of magnitude of 15 ,000 volts.
  • FIG. 1 illustrates the circuit interrupter 9 attached to the end of a g -V ltage cable 52, it is to be understood that it may be attached directly to a high voltage bushing of a transformer in the same manner, the only difference being that the end of the high voltage bushing of the transformer would have to be shaped to fit into the tapered opening 59 in the liner 50 in the end of the circuit interrupter 9.
  • the invention described herein has provided a new and improved sealed circuit interrupter 9 for interrupting high-voltage load circuits, which provide positive circuit interruption wherein the condition of the circuit interrupted may be visually inspected without having parts of the energized circuitexposed, where they may be inadvertently contacted by servicing personnel.
  • the invention described herein also provides a circuit interrupter which may be easily installed with water-tight seals for operating under submerged con ditions.
  • a circuit interrupter comprising a transparent hermetically sealed casing, a fixed cont-act mounted inside said casing first conductor means connected to said fixed contact and extending exteriorly of said casing for electrically connecting an electrical conductor to said fixed contact, means for making a water tight connection between said first conductor means and an electrical conductor, a movable circuit opening and closing element in said casing, second conductor means connected to said movable circuit opening and closing element and extending exteriorly of said casing for electrically connecting an electrical conductor to said movable circuit opening and closing element, means for making a water tight connection between said second conductor means and an electrical conductor, a lever pivotally mounted in said casing, spring means connected between said movable circuit opening and closing element and said pivoted lever, permanent magnet means mounted adjacent an end of said lever, said permanent magnet means being positioned adjacent to an outside wall of said casing, said casing being filled with an electronegat-ive gas and hermetically sealed, said permanent magnet being movable by means exteriorly or" said casing to load said spring to

Landscapes

  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
US482812A 1965-08-26 1965-08-26 Remotely operated sealed circuit interrupter Expired - Lifetime US3312918A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US482812A US3312918A (en) 1965-08-26 1965-08-26 Remotely operated sealed circuit interrupter
JP1966080107U JPS4216641Y1 (US06312121-20011106-C00033.png) 1965-08-26 1966-08-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US482812A US3312918A (en) 1965-08-26 1965-08-26 Remotely operated sealed circuit interrupter

Publications (1)

Publication Number Publication Date
US3312918A true US3312918A (en) 1967-04-04

Family

ID=23917549

Family Applications (1)

Application Number Title Priority Date Filing Date
US482812A Expired - Lifetime US3312918A (en) 1965-08-26 1965-08-26 Remotely operated sealed circuit interrupter

Country Status (2)

Country Link
US (1) US3312918A (US06312121-20011106-C00033.png)
JP (1) JPS4216641Y1 (US06312121-20011106-C00033.png)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US561581A (en) * 1896-06-09 Monroe guett
US2012153A (en) * 1932-10-12 1935-08-20 Clifford V Bates Means for opening and closing circuits
US2306585A (en) * 1938-08-16 1942-12-29 Appelberg Carl Electric switch
US2649712A (en) * 1947-10-06 1953-08-25 Clarence R Dale Oil well flowmeter
US3200214A (en) * 1962-02-19 1965-08-10 Fred B Aubert Flow control devices

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US561581A (en) * 1896-06-09 Monroe guett
US2012153A (en) * 1932-10-12 1935-08-20 Clifford V Bates Means for opening and closing circuits
US2306585A (en) * 1938-08-16 1942-12-29 Appelberg Carl Electric switch
US2649712A (en) * 1947-10-06 1953-08-25 Clarence R Dale Oil well flowmeter
US3200214A (en) * 1962-02-19 1965-08-10 Fred B Aubert Flow control devices

Also Published As

Publication number Publication date
JPS4216641Y1 (US06312121-20011106-C00033.png) 1967-09-26

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