US1716166A - Disconnecting switch - Google Patents

Disconnecting switch Download PDF

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Publication number
US1716166A
US1716166A US190680A US19068027A US1716166A US 1716166 A US1716166 A US 1716166A US 190680 A US190680 A US 190680A US 19068027 A US19068027 A US 19068027A US 1716166 A US1716166 A US 1716166A
Authority
US
United States
Prior art keywords
switch
members
current
magnetic
jaw
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
US190680A
Other languages
English (en)
Inventor
Otto H Eschholz
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.)
Westinghouse Electric 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 US190680A priority Critical patent/US1716166A/en
Priority to DES85495D priority patent/DE507232C/de
Application granted granted Critical
Publication of US1716166A publication Critical patent/US1716166A/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
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force

Definitions

  • M invention relates to switches andmore particularly to thattype known as disconnecting switches.
  • Fig. 1 is a side elevational view of a disconnecting switch embodying my invention' I Fig. 2 is a fragmentary viewof a disconnecting switch embodying my invention;
  • Fig. 3 is a fragmentary view of a d1sconnecting switch illustrating a different embodiment of my invention
  • Fig. 4 is a sectional view line IVIV of Fig. 2;
  • Fig. 5 is a sectional view taken along the line V-V of Fig. 2;
  • Fig. 6 is a side elevational view of a disconnecting switch of the flow of the current therethrough and the direction of the magnetic flux thereabout.
  • Fig. 4 and 5 show a preferred manner in which the magnetic material may be positioned with respect to the switch members. With such a structure, the magnetic fluxes normally generated by the current flowing in the loop member, as illustrated at 15 and 16 in Fig. 6, will now pass through the iron,
  • any leakage field reacting on the current in the adjacent member will be negligible. Since the iron may be-anchored to some suppo ing member, such as 11, the constrict tendency of the flux envelopin the blade will now tend to draw the swi blade towards the iron and to hold such blade in place with an increased'force upon increasing the current flowing through the switch.
  • I ave provided a disconnecting switch having magnetic means at the interior angles of the switch for modifying the interaction of the currents and fluxes in such a way as to prevent heavy currents from opening the switch during their'fiow therethrough and even to tend to maintain the switch in a closed position with increasing current values.
  • An electrical device comprising two relatively movable current-carrying members disposed at an angle and a magnetic material positioned in the interior angle formed by the said members, the said magnetic material partially enveloping both of said members.
  • An electrical device comprising two relatively movable current-carrying members disposed at an angle, and a magnetic material positioned in the interior angle formed by the said members, the said magnetic material being fixed relative to one of said members and having sufiicient mass within the angle of. the members to provide a substantially free path for the magnetic flux and to thereby eliminate forces tending to relatively displace the members.
  • An electrical device comprising two relatively movable current-carrying members disposed at an angle, and a magnetic material positioned in the interior angle formed by the said members, the. said magnetic material being fixed relative to one of said members and partially enveloping both of said members.
  • An electricaldevice comprising a base 'gage the,contact jaw and u thereon, a blade connected to the hinge jaw and adapted to endisposed at an angle thereto, and a materialhaving a permeability grea than unity in a fixedrelation to one of the said jaws and adjacent to the said blade member and disposed in the said angle and having such mass in the an"le' that it remainsuns'aturated under possi le extreme current conditions.
  • An electricaldevice comprising a base member having'a hinge jaw and a contact jaw disposed thereon, a blade member connected to the hinge jaw and adapted to engage the contact aw, and a magnetic memaws and adjacent to the blade member, the
  • An electrical device comprising a base member having a hinge jaw and a contact jaw disposed thereon, a blade member connected to'the hinge jaw and adapted to engage the contact jaw, and a magnetic member disposed on the opposite side ofthe said base member at substantially a midway position between the jaw members, the said magnetic member being fixed to the base member.
  • An electrical device comprising a base member having a hinge jaw and .a contact jaw disposed thereon, a blade member connected to the hinge jaw and adapted to engage the contact jaw, a material having a' permeability greater than unity positioned within an angle formed by the said members, and a magnetic member disposed on the opposite side of the said base member at substantially .a'midwa position between the'jaw members, the sail magnetic member being fixed to the base member.
  • An electrical device comprising a fixed memberbaving a jaw and a contact her disposed contiguous to each of the said conductor,.a movable conductor disposed at an angle thereto, and adapted to engage the fixed conductor for conducting current therethe said material being attached to the fixed conductor and havmg'suflicient mass to remam substantially unsaturated under pos-' sible extreme current conditions.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
US190680A 1927-05-12 1927-05-12 Disconnecting switch Expired - Lifetime US1716166A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US190680A US1716166A (en) 1927-05-12 1927-05-12 Disconnecting switch
DES85495D DE507232C (de) 1927-05-12 1928-05-05 Einrichtung an Schaltern, die ein selbsttaetiges OEffnen des Schalters beim Auftreten von UEberstroemen verhindert

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US190680A US1716166A (en) 1927-05-12 1927-05-12 Disconnecting switch

Publications (1)

Publication Number Publication Date
US1716166A true US1716166A (en) 1929-06-04

Family

ID=22702331

Family Applications (1)

Application Number Title Priority Date Filing Date
US190680A Expired - Lifetime US1716166A (en) 1927-05-12 1927-05-12 Disconnecting switch

Country Status (2)

Country Link
US (1) US1716166A (de)
DE (1) DE507232C (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439126A (en) * 1944-07-15 1948-04-06 Cooke & Ferguson Ltd Electric circuit breaker
US2900473A (en) * 1956-12-28 1959-08-18 Ite Circuit Breaker Ltd Magnetic shield
DE1175312B (de) * 1959-09-07 1964-08-06 Licentia Gmbh Anordnung zur Verminderung der Aus-wirkungen von durch Kurzschlussstroeme hervor-gerufenen Kraftwirkungen zwischen Schalterpolen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2439126A (en) * 1944-07-15 1948-04-06 Cooke & Ferguson Ltd Electric circuit breaker
US2900473A (en) * 1956-12-28 1959-08-18 Ite Circuit Breaker Ltd Magnetic shield
DE1175312B (de) * 1959-09-07 1964-08-06 Licentia Gmbh Anordnung zur Verminderung der Aus-wirkungen von durch Kurzschlussstroeme hervor-gerufenen Kraftwirkungen zwischen Schalterpolen

Also Published As

Publication number Publication date
DE507232C (de) 1930-09-15

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