IT1029033B - Overcurrent protection current limiting device - has automatic current limiting cct. breaker with magnetic trip coacting with contact arm - Google Patents

Overcurrent protection current limiting device - has automatic current limiting cct. breaker with magnetic trip coacting with contact arm

Info

Publication number
IT1029033B
IT1029033B IT4151475A IT4151475A IT1029033B IT 1029033 B IT1029033 B IT 1029033B IT 4151475 A IT4151475 A IT 4151475A IT 4151475 A IT4151475 A IT 4151475A IT 1029033 B IT1029033 B IT 1029033B
Authority
IT
Italy
Prior art keywords
current limiting
contact arm
magnetic trip
breaker
coacting
Prior art date
Application number
IT4151475A
Other languages
Italian (it)
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
Application granted granted Critical
Publication of IT1029033B publication Critical patent/IT1029033B/en

Links

Landscapes

  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The current limiting unit for protecting an electric load against overcurrents comprises currents limiting circuit breaker with a contact system including a moving contact arm and a magnetic trip. The latter has an open-ended slot that takes up part of the contact arm so that a magnetic flux is induced in the magnetic trip when preset excessive current flows in the contact arm, sufficient to effect a rapid contact breaking movement of the contact arm. A normally open short circuit path is provided in parallel with the load, this path being closed immediately after occurrence of an overcurrent of predetermined threshold value.
IT4151475A 1974-01-25 1975-01-24 Overcurrent protection current limiting device - has automatic current limiting cct. breaker with magnetic trip coacting with contact arm IT1029033B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43658874A 1974-01-25 1974-01-25

Publications (1)

Publication Number Publication Date
IT1029033B true IT1029033B (en) 1979-03-10

Family

ID=23733029

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4151475A IT1029033B (en) 1974-01-25 1975-01-24 Overcurrent protection current limiting device - has automatic current limiting cct. breaker with magnetic trip coacting with contact arm

Country Status (7)

Country Link
JP (1) JPS5619695B2 (en)
BR (1) BR7500429A (en)
CA (1) CA1031398A (en)
ES (1) ES434158A1 (en)
IT (1) IT1029033B (en)
PL (1) PL100506B1 (en)
ZA (1) ZA75231B (en)

Also Published As

Publication number Publication date
ES434158A1 (en) 1976-12-16
JPS5619695B2 (en) 1981-05-09
ZA75231B (en) 1976-01-28
BR7500429A (en) 1975-11-04
CA1031398A (en) 1978-05-16
PL100506B1 (en) 1978-10-31
JPS50104351A (en) 1975-08-18

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