IT967304B - Impianto elettrico con barriera d energia - Google Patents

Impianto elettrico con barriera d energia

Info

Publication number
IT967304B
IT967304B IT29003/72A IT2900372A IT967304B IT 967304 B IT967304 B IT 967304B IT 29003/72 A IT29003/72 A IT 29003/72A IT 2900372 A IT2900372 A IT 2900372A IT 967304 B IT967304 B IT 967304B
Authority
IT
Italy
Prior art keywords
electrical system
energy barrier
barrier
energy
electrical
Prior art date
Application number
IT29003/72A
Other languages
English (en)
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 IT967304B publication Critical patent/IT967304B/it

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/008—Intrinsically safe circuits
IT29003/72A 1971-09-10 1972-09-09 Impianto elettrico con barriera d energia IT967304B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17935571A 1971-09-10 1971-09-10

Publications (1)

Publication Number Publication Date
IT967304B true IT967304B (it) 1974-02-28

Family

ID=22656238

Family Applications (1)

Application Number Title Priority Date Filing Date
IT29003/72A IT967304B (it) 1971-09-10 1972-09-09 Impianto elettrico con barriera d energia

Country Status (8)

Country Link
US (1) US3684924A (it)
JP (1) JPS5421536B2 (it)
AU (1) AU466694B2 (it)
BE (1) BE788539A (it)
CA (1) CA1000356A (it)
FR (1) FR2152786B1 (it)
GB (1) GB1381035A (it)
IT (1) IT967304B (it)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3818273A (en) * 1971-03-26 1974-06-18 Yokogawa Electric Works Ltd Barrier isolator device employing an overload protection circuit
US4016480A (en) * 1974-03-04 1977-04-05 Zenith Radio Corporation Dual function coupling system and method
US4034281A (en) * 1974-07-25 1977-07-05 Sanken Electric Company Limited Direct current power supply with a transistor chopper
US3973170A (en) * 1974-09-09 1976-08-03 Honeywell Inc. Intrinsic safety barrier
DE2457664C2 (de) * 1974-12-06 1985-04-04 Robert Bosch Gmbh, 7000 Stuttgart Elektrische Schaltungsanordnung zur Erzeugung einer stabilen Ausgangsspannung
US4004223A (en) * 1975-06-16 1977-01-18 Cohen Samuel G Audible resistance or voltage tester
FR2382810A1 (fr) * 1977-03-02 1978-09-29 Labo Cent Telecommunicat Circuit d'alimentation de ligne telephonique avec protection
US4190822A (en) * 1978-04-05 1980-02-26 Honeywell Inc. Current telemetering interface apparatus
JPS5581603A (en) * 1978-12-13 1980-06-19 Yoshida Kogyo Kk Box body attaching apparatus for slide fastener
GB2145858A (en) * 1983-08-27 1985-04-03 Hunslett Monitoring system
GB8712865D0 (en) * 1987-06-02 1987-07-08 Measurement Tech Ltd Safety barriers
GB2245439B (en) * 1987-09-26 1992-04-29 Measurement Tech Ltd Electrical safety barriers
GB8722679D0 (en) * 1987-09-26 1987-11-04 Measurement Tech Ltd Electrical safety barriers
US4954923A (en) * 1988-08-19 1990-09-04 Cooper Industries, Inc. Intrinsic safety module interface
US5144517A (en) * 1989-10-20 1992-09-01 Pepperl + Fuchs, Inc. Intrinsically safe barrier device
JP2504586B2 (ja) * 1989-10-31 1996-06-05 東芝マイクロエレクトロニクス株式会社 接地外れ保護回路を有する電子回路装置
US5010292A (en) * 1989-12-12 1991-04-23 North American Philips Corporation Voltage regulator with reduced semiconductor power dissipation
US5993623A (en) * 1996-09-24 1999-11-30 Rosemount Analytical Inc. Solid electrolyte gas analyzer with improved circuit and housing configuration
DE10249599B4 (de) * 2002-10-24 2007-12-27 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Sicherheitsschaltung für analoge Sensoren
US20050190513A1 (en) * 2004-03-01 2005-09-01 Omron Corporation Surge suppression circuit
US7855865B2 (en) * 2007-10-16 2010-12-21 Nokia Corporation Circuitry protection arrangement
GB201007688D0 (en) * 2010-05-10 2010-06-23 Kitchener Renato Variable biased active IEC61168-2 fieldbus power conditioner
US9343899B2 (en) * 2013-10-03 2016-05-17 Fisher Controls International Llc Intrinsically safe voltage limiting shunt regulator circuit
CN104682334B (zh) * 2013-12-03 2018-09-28 深圳市海洋王照明工程有限公司 一种安全栅电路及灯具
CN103916012B (zh) * 2014-04-01 2016-09-28 江苏杰瑞科技集团有限责任公司 一种本质安全电源转换装置
US10749426B1 (en) 2019-04-11 2020-08-18 Graco Minnesota Inc. Trapezoidal power-supply barrier between hazardous and normal locations

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309542A (en) * 1963-10-31 1967-03-14 Cutler Hammer Inc Intrinsically safe switching systems
US3431486A (en) * 1966-10-28 1969-03-04 Motorola Inc Protection circuit including power dissipation limiting means
GB1133750A (en) * 1966-12-02 1968-11-13 Foxboro Yoxall Ltd Electrical barrier device
US3445679A (en) * 1966-12-15 1969-05-20 Square D Co Intrinsically safe electrical control system
US3571608A (en) * 1969-04-04 1971-03-23 Honeywell Inc Protective circuit
US3631264A (en) * 1970-02-11 1971-12-28 Sybron Corp Intrinsically safe electrical barrier system and improvements therein
US3581152A (en) * 1970-03-16 1971-05-25 Lloyd F Hunt Round protection and detecting for high voltage dc transmission system

Also Published As

Publication number Publication date
AU4563172A (en) 1974-02-21
GB1381035A (en) 1975-01-22
FR2152786B1 (it) 1977-03-04
CA1000356A (en) 1976-11-23
US3684924A (en) 1972-08-15
BE788539A (fr) 1973-03-08
FR2152786A1 (it) 1973-04-27
JPS4836645A (it) 1973-05-30
JPS5421536B2 (it) 1979-07-31
AU466694B2 (en) 1975-11-06

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