ZA762981B - Long delay acceleration module for an overload relay syst - Google Patents

Long delay acceleration module for an overload relay syst

Info

Publication number
ZA762981B
ZA762981B ZA762981A ZA762981A ZA762981B ZA 762981 B ZA762981 B ZA 762981B ZA 762981 A ZA762981 A ZA 762981A ZA 762981 A ZA762981 A ZA 762981A ZA 762981 B ZA762981 B ZA 762981B
Authority
ZA
South Africa
Prior art keywords
syst
acceleration module
long delay
overload relay
delay acceleration
Prior art date
Application number
ZA762981A
Other languages
English (en)
Inventor
G Taylor
W Gary
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
Publication of ZA762981B publication Critical patent/ZA762981B/xx

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)
  • Motor And Converter Starters (AREA)
ZA762981A 1975-06-02 1976-05-19 Long delay acceleration module for an overload relay syst ZA762981B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/583,323 US4002948A (en) 1975-06-02 1975-06-02 Long delay acceleration module for an overload relay system

Publications (1)

Publication Number Publication Date
ZA762981B true ZA762981B (en) 1977-04-27

Family

ID=24332627

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA762981A ZA762981B (en) 1975-06-02 1976-05-19 Long delay acceleration module for an overload relay syst

Country Status (14)

Country Link
US (1) US4002948A (fr)
JP (1) JPS51147739A (fr)
AU (1) AU500677B2 (fr)
BE (1) BE842350A (fr)
BR (1) BR7603425A (fr)
CA (1) CA1027666A (fr)
CH (1) CH600641A5 (fr)
DE (1) DE2624784A1 (fr)
ES (1) ES448413A1 (fr)
FR (1) FR2313790A1 (fr)
GB (1) GB1552640A (fr)
IT (1) IT1068967B (fr)
SE (1) SE409788B (fr)
ZA (1) ZA762981B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153924A (en) * 1977-10-12 1979-05-08 Mcgraw-Edison Company Inrush current restraint circuit for alternating power system switch
US4368500A (en) * 1981-04-27 1983-01-11 Westinghouse Electric Corp. Solid-state load protection system having an improved inverse time delay circuit
SE426895B (sv) * 1981-07-06 1983-02-14 Asea Ab Skyddsanordning for en seriekondensator i ett hogspenningsnet
DE3236033A1 (de) * 1982-09-29 1984-03-29 Robert Bosch Gmbh, 7000 Stuttgart Schraubvorrichtung
US4628395A (en) * 1983-11-21 1986-12-09 Mitsubishi Denki Kabushiki Kaisha Overload protecting circuit for an inverter device
DE3404359A1 (de) * 1984-02-08 1985-08-08 L. Schuler GmbH, 7320 Göppingen Elektrische schaltungsanordnung zum schutz von pressen
GB8726783D0 (en) * 1987-11-16 1987-12-23 Chin Fay Lai Over current circuit breaker
US5045778A (en) * 1989-01-30 1991-09-03 Sigma Instruments, Inc. Fault indicator with inrush restraint
JP3380360B2 (ja) * 1995-04-25 2003-02-24 三菱電機株式会社 車載用電動開閉体の開閉制御方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2551022A (en) * 1945-11-30 1951-05-01 Allis Chalmers Mfg Co Electric protective system with inrush current compensation
US2914702A (en) * 1957-06-06 1959-11-24 Ite Circuit Breaker Ltd Adjustable instantaneous overload trip device
FR1511108A (fr) * 1966-12-15 1968-01-26 Mechanical Products Inc Dispositif de protection de circuits électroniques
US3602783A (en) * 1970-05-07 1971-08-31 Westinghouse Electric Corp Circuit breaker device including improved overcurrent protective device
US3739229A (en) * 1971-09-20 1973-06-12 Mc Graw Edison Co Overcurrent sensing and restraint control for sectionalizing switch
US3996499A (en) * 1974-09-09 1976-12-07 Westinghouse Electric Corporation Zener diode effect on long acceleration module

Also Published As

Publication number Publication date
SE409788B (sv) 1979-09-03
US4002948A (en) 1977-01-11
GB1552640A (en) 1979-09-19
CA1027666A (fr) 1978-03-07
AU1408676A (en) 1977-11-24
IT1068967B (it) 1985-03-21
FR2313790A1 (fr) 1976-12-31
SE7606084L (sv) 1976-12-03
AU500677B2 (en) 1979-05-31
BR7603425A (pt) 1977-02-15
BE842350A (fr) 1976-11-29
ES448413A1 (es) 1977-07-01
DE2624784A1 (de) 1976-12-16
JPS51147739A (en) 1976-12-18
CH600641A5 (fr) 1978-06-30
FR2313790B1 (fr) 1982-11-19

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