ZA822620B - Solid-state load protection system having loss of phase sensing - Google Patents

Solid-state load protection system having loss of phase sensing

Info

Publication number
ZA822620B
ZA822620B ZA822620A ZA822620A ZA822620B ZA 822620 B ZA822620 B ZA 822620B ZA 822620 A ZA822620 A ZA 822620A ZA 822620 A ZA822620 A ZA 822620A ZA 822620 B ZA822620 B ZA 822620B
Authority
ZA
South Africa
Prior art keywords
loss
solid
protection system
load protection
state load
Prior art date
Application number
ZA822620A
Other languages
English (en)
Inventor
E Conroy Jr
D Orange
R Elms
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 ZA822620B publication Critical patent/ZA822620B/xx

Links

Classifications

    • 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
    • H02H3/12—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 underload or no-load
    • H02H3/13—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 underload or no-load for multiphase applications, e.g. phase interruption
ZA822620A 1981-04-27 1982-04-16 Solid-state load protection system having loss of phase sensing ZA822620B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/258,108 US4379317A (en) 1981-04-27 1981-04-27 Solid-state load protection system having loss of phase sensing

Publications (1)

Publication Number Publication Date
ZA822620B true ZA822620B (en) 1983-04-27

Family

ID=22979127

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA822620A ZA822620B (en) 1981-04-27 1982-04-16 Solid-state load protection system having loss of phase sensing

Country Status (15)

Country Link
US (1) US4379317A (xx)
JP (1) JPS57183217A (xx)
AU (1) AU557961B2 (xx)
BE (1) BE892996A (xx)
BR (1) BR8202359A (xx)
CA (1) CA1160331A (xx)
CH (1) CH658952A5 (xx)
DE (1) DE3215181A1 (xx)
ES (1) ES511691A0 (xx)
FR (1) FR2504747A1 (xx)
GB (1) GB2097614B (xx)
IE (1) IE52746B1 (xx)
MX (1) MX151253A (xx)
PH (1) PH19744A (xx)
ZA (1) ZA822620B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR910002069B1 (ko) * 1987-04-30 1991-04-01 미쓰비시전기 주식회사 회로차단기
US5172291A (en) * 1990-03-27 1992-12-15 Struthers-Dunn, Inc. Intelligent power controller
US5267117A (en) * 1991-06-28 1993-11-30 Johnson & Wilson Co. Sales And Service, Inc. Electrical phase and amplitude fault detection and response system
US6541954B1 (en) 1999-06-01 2003-04-01 Ssac, Inc. Circuit apparatus for sensing line conditions in a three phase power line
US6252365B1 (en) * 1999-08-17 2001-06-26 General Electric Company Breaker/starter with auto-configurable trip unit
US20030165037A1 (en) * 2002-03-01 2003-09-04 Stephen Liscinksy Three-phase supervisory circuit
US7038423B2 (en) * 2004-05-07 2006-05-02 Bay Controls, Inc. Apparatus and method for ride through for AC induction motors
US9413178B2 (en) 2011-11-11 2016-08-09 General Electric Company Charging device and method of detecting a connection to ground
US9755568B2 (en) 2014-07-09 2017-09-05 Nidec Motor Corporation System and method for detecting loss of input phase by sensing before power rectifier

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1588324A1 (de) * 1967-02-04 1970-05-21 Ibm Deutschland Schaltungsanordnung zur Erkennung von Spannungsausfaellen an dreiphasigen Transformatoren
JPS4331239Y1 (xx) * 1968-05-23 1968-12-18
US3584259A (en) * 1970-03-02 1971-06-08 Gen Motors Corp Phase failure detection system
US3636541A (en) * 1970-04-09 1972-01-18 Honeywell Inf Systems Loss of phase detector for a polyphase power system
US3602783A (en) * 1970-05-07 1971-08-31 Westinghouse Electric Corp Circuit breaker device including improved overcurrent protective device
US3818275A (en) * 1973-01-30 1974-06-18 Westinghouse Electric Corp Circuit interrupter including improved trip circuit using current transformers
SE378950B (xx) * 1974-01-07 1975-09-15 Asea Ab
US3996499A (en) * 1974-09-09 1976-12-07 Westinghouse Electric Corporation Zener diode effect on long acceleration module
US4007401A (en) * 1974-09-09 1977-02-08 Westinghouse Electric Corporation Current sensitive circuit protection system
US4021703A (en) * 1975-06-02 1977-05-03 Westinghouse Electric Corporation Phase imbalance detection circuit
DE2532206A1 (de) * 1975-07-18 1977-01-20 Hartmann & Braun Ag Schaltungsanordnung zur abschaltung eines drehstromverbrauchers bei unsymmetrischer leistungsaufnahme
FR2468238A1 (fr) * 1979-10-16 1981-04-30 Telemecanique Electrique Dispositif electronique de protection d'un moteur electrique contre les surcharges et la perte d'une phase de la tension alternative triphasee d'alimentation

Also Published As

Publication number Publication date
JPS57183217A (en) 1982-11-11
ES8306931A1 (es) 1983-06-01
AU557961B2 (en) 1987-01-15
BE892996A (fr) 1982-10-27
IE820833L (en) 1982-10-27
FR2504747A1 (fr) 1982-10-29
AU8266482A (en) 1982-11-04
MX151253A (es) 1984-10-24
GB2097614A (en) 1982-11-03
US4379317A (en) 1983-04-05
PH19744A (en) 1986-06-23
CH658952A5 (de) 1986-12-15
CA1160331A (en) 1984-01-10
GB2097614B (en) 1984-09-26
DE3215181A1 (de) 1982-11-18
IE52746B1 (en) 1988-02-03
BR8202359A (pt) 1983-04-05
ES511691A0 (es) 1983-06-01

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