IT1050898B - Dispositivo di protezone di un circuito elettrico - Google Patents

Dispositivo di protezone di un circuito elettrico

Info

Publication number
IT1050898B
IT1050898B IT41688/75A IT4168875A IT1050898B IT 1050898 B IT1050898 B IT 1050898B IT 41688/75 A IT41688/75 A IT 41688/75A IT 4168875 A IT4168875 A IT 4168875A IT 1050898 B IT1050898 B IT 1050898B
Authority
IT
Italy
Prior art keywords
electric circuit
protective device
protective
electric
circuit
Prior art date
Application number
IT41688/75A
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 IT1050898B publication Critical patent/IT1050898B/it

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
    • H02H1/043—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks to inrush currents
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)
IT41688/75A 1974-09-09 1975-09-08 Dispositivo di protezone di un circuito elettrico IT1050898B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/504,404 US3996499A (en) 1974-09-09 1974-09-09 Zener diode effect on long acceleration module

Publications (1)

Publication Number Publication Date
IT1050898B true IT1050898B (it) 1981-03-20

Family

ID=24006129

Family Applications (1)

Application Number Title Priority Date Filing Date
IT41688/75A IT1050898B (it) 1974-09-09 1975-09-08 Dispositivo di protezone di un circuito elettrico

Country Status (12)

Country Link
US (1) US3996499A (it)
JP (2) JPS5153243A (it)
AR (1) AR210089A1 (it)
BE (1) BE833054R (it)
BR (1) BR7505666A (it)
CA (1) CA1055142A (it)
DE (1) DE2538707A1 (it)
ES (1) ES440677A2 (it)
FR (1) FR2284207A2 (it)
GB (1) GB1524826A (it)
IT (1) IT1050898B (it)
ZA (1) ZA755046B (it)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002948A (en) * 1975-06-02 1977-01-11 Westinghouse Electric Corporation Long delay acceleration module for an overload relay system
US4084406A (en) * 1976-01-22 1978-04-18 Fedders Corporation Chiller controls
US4208689A (en) * 1978-03-15 1980-06-17 Square D Company Circuit breaker having an electronic fault sensing and trip initiating unit
US4268884A (en) * 1979-05-07 1981-05-19 Amf Incorporated Current sensing circuit
IT1193453B (it) * 1979-09-03 1988-06-22 Puntimatic Snc D Musiani Franc Dispositivo rivelatore di sovracorrente e di mancanza di fase
FI65512C (fi) * 1979-12-28 1984-05-10 Elevator Gmbh Foerfarande och anordning foer oevervakning av stroemdata vid tyristorstyrt likstroemsbruk
US4414601A (en) * 1981-04-27 1983-11-08 Westinghouse Electric Corp. Solid-state load protection system having a test feature
US4379317A (en) * 1981-04-27 1983-04-05 Westinghouse Electric Corp. Solid-state load protection system having loss of phase sensing
US4368500A (en) * 1981-04-27 1983-01-11 Westinghouse Electric Corp. Solid-state load protection system having an improved inverse time delay circuit
US4347540A (en) * 1981-04-27 1982-08-31 Westinghouse Electric Corp. Solid-state load protection system having ground fault sensing
US4345288A (en) * 1981-05-04 1982-08-17 Square D Company Solid state over-current protective apparatus for a power circuit
SU1046826A1 (ru) * 1981-05-06 1983-10-07 Павлодарский Индустриальный Институт Электрическа трехфазна машина
GB2123627A (en) * 1982-04-08 1984-02-01 David Alan Dolbey Jones Electrical circuit interruption
DE3347209A1 (de) * 1983-12-27 1985-07-11 Siemens AG, 1000 Berlin und 8000 München Anordnung zur beeinflussung eines schaltgeraetes
DE3425792A1 (de) * 1984-07-13 1986-01-16 Hans-Josef 4132 Kamp-Lintfort Velroyen Elektronische schutzschaltung fuer maschinen und elektromotore mit konstanter stromaufnahme
GB8425119D0 (en) * 1984-10-04 1984-11-07 Vent Axia Ltd Electric motor speed control circuits
GB8425118D0 (en) * 1984-10-04 1984-11-07 Vent Axia Ltd Motor speed control circuits
US4647825A (en) * 1985-02-25 1987-03-03 Square D Company Up-to-speed enable for jam under load and phase loss
US4713720A (en) * 1986-05-14 1987-12-15 Litton Systems, Inc. Fast acting solid state AC circuit breaker
US4743781A (en) * 1986-07-03 1988-05-10 International Business Machines Corporation Dotting circuit with inhibit function
US5045778A (en) * 1989-01-30 1991-09-03 Sigma Instruments, Inc. Fault indicator with inrush restraint
GB2237155B (en) * 1989-10-18 1993-08-04 Plessey Co Plc Improvements relating to monitoring circuit arrangements
GB9222308D0 (en) * 1992-10-23 1992-12-09 Smiths Industries Plc Electrical systems
US5652420A (en) * 1995-11-14 1997-07-29 Eaton Corporation Modular contactor control system
US5606299A (en) * 1995-11-14 1997-02-25 Eaton Corporation Modular surge suppressor
FR2760909B1 (fr) * 1997-03-14 1999-05-28 Valeo Equip Electr Moteur Controle de demarreurs a commande electronique de vehicule automobile
US5805398A (en) * 1997-09-29 1998-09-08 Eaton Corporation Arc fault detector with immunity to tungsten bulb burnout and circuit breaker incorporating same
US5896262A (en) * 1998-02-26 1999-04-20 Eaton Corporation Arc fault detector with protection against nuisance trips and circuit breaker incorporating same
US6002563A (en) * 1998-09-03 1999-12-14 Electronic Theatre Controls, Inc. Plug-in power module incorporating ground-fault detection and reporting
US6252365B1 (en) * 1999-08-17 2001-06-26 General Electric Company Breaker/starter with auto-configurable trip unit
CN102255294B (zh) * 2011-07-26 2013-10-30 天津大学 用于微电网的电压加速反时限过电流保护方法
RU2535297C1 (ru) * 2013-06-17 2014-12-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Способ защиты электродвигателей от коротких замыканий
CN107677879A (zh) * 2017-10-17 2018-02-09 大唐韩城第二发电有限责任公司 发变组保护与发电机转子过负荷的检测方法及装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602783A (en) * 1970-05-07 1971-08-31 Westinghouse Electric Corp Circuit breaker device including improved overcurrent protective device
JPS4814608U (it) * 1971-06-24 1973-02-19
US3792313A (en) * 1972-10-02 1974-02-12 Ite Imperial Corp Timing control circuit for solid state protective relays for providing novel control of the pickup and timing circuits provided therein
US3818275A (en) * 1973-01-30 1974-06-18 Westinghouse Electric Corp Circuit interrupter including improved trip circuit using current transformers

Also Published As

Publication number Publication date
JPS5153243A (it) 1976-05-11
GB1524826A (en) 1978-09-13
ES440677A2 (es) 1977-05-01
AU8384675A (en) 1977-02-17
USB504404I5 (it) 1976-02-24
US3996499A (en) 1976-12-07
AR210089A1 (es) 1977-06-30
ZA755046B (en) 1976-07-28
JPS5474232U (it) 1979-05-26
BR7505666A (pt) 1976-08-03
BE833054R (fr) 1976-03-04
FR2284207A2 (fr) 1976-04-02
DE2538707A1 (de) 1976-05-20
CA1055142A (en) 1979-05-22

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