ZA952341B - Overcurrent trip unit with separately adjustable neutral protection - Google Patents

Overcurrent trip unit with separately adjustable neutral protection

Info

Publication number
ZA952341B
ZA952341B ZA952341A ZA952341A ZA952341B ZA 952341 B ZA952341 B ZA 952341B ZA 952341 A ZA952341 A ZA 952341A ZA 952341 A ZA952341 A ZA 952341A ZA 952341 B ZA952341 B ZA 952341B
Authority
ZA
South Africa
Prior art keywords
trip unit
separately adjustable
overcurrent trip
adjustable neutral
neutral protection
Prior art date
Application number
ZA952341A
Other languages
English (en)
Inventor
Joseph Jacob Matsko
Joseph Charles Engel
Alan Burke Shimp
Original Assignee
Eaton 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 Eaton Corp filed Critical Eaton Corp
Publication of ZA952341B publication Critical patent/ZA952341B/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
    • H02H3/08—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
    • H02H3/083—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 for three-phase systems
    • 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
    • H02H3/006—Calibration or setting of parameters
    • 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
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • 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
    • H02H3/0935—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 the timing being determined by numerical means
ZA952341A 1994-03-25 1995-03-22 Overcurrent trip unit with separately adjustable neutral protection ZA952341B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/218,008 US5483408A (en) 1994-03-25 1994-03-25 Overcurrent trip unit with separately adjustable neutral protection

Publications (1)

Publication Number Publication Date
ZA952341B true ZA952341B (en) 1995-12-15

Family

ID=22813394

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA952341A ZA952341B (en) 1994-03-25 1995-03-22 Overcurrent trip unit with separately adjustable neutral protection

Country Status (9)

Country Link
US (1) US5483408A (fr)
EP (1) EP0674376B1 (fr)
JP (1) JP3437676B2 (fr)
KR (1) KR100326364B1 (fr)
CN (1) CN1052582C (fr)
BR (1) BR9500985A (fr)
CA (1) CA2145471C (fr)
DE (1) DE69507655T2 (fr)
ZA (1) ZA952341B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1007122C2 (nl) * 1997-09-25 1999-03-26 Odink & Koenderink Bv Schakelinrichting voor het beheren van een meerfasig wisselspanningsnet met een aantal gebruikseenheden.
US6121886A (en) * 1999-05-18 2000-09-19 General Electric Company Method for predicting fault conditions in an intelligent electronic device
US20050024798A1 (en) * 2003-07-30 2005-02-03 Reynoso Aaron L. Enhanced method and apparatus for protecting against bolted short, open neutral, and reverse polarity conditions in an electronic circuit
JP4353199B2 (ja) * 2006-03-30 2009-10-28 三菱電機株式会社 回路遮断器
US8280653B2 (en) 2009-02-10 2012-10-02 Eaton Corporation Zone selective interlocking test method and apparatus, and circuit interrupter apparatus and power distribution system including the same
US20100327599A1 (en) * 2009-06-30 2010-12-30 Vestas Wind Systems A/S Wind power plant predictive protection circuit
FR2950977B1 (fr) * 2009-10-02 2011-10-28 Airbus Operations Sas Element de vehicule, par exemple d'aeronef, comportant des cables electriques, et vehicule, par exemple aeronef, comprenant un tel element
CN102801131B (zh) * 2012-09-06 2015-12-09 重庆大学 一种中性线断线检测保护方法和装置
US8928269B2 (en) 2012-12-20 2015-01-06 Caterpillar Inc. Power system having short circuit protection controller
US9705310B2 (en) 2013-11-26 2017-07-11 Thomas & Betts International Llc Adaptive fault clearing based on power transistor temperature
US10126804B2 (en) 2016-02-19 2018-11-13 Microsoft Technology Licensing, Llc Balancing input phases across server rack power supplies
CN110999021B (zh) * 2017-07-27 2024-07-09 株式会社Aesc日本 电池组
DE102017125309B4 (de) * 2017-10-27 2024-05-08 Eaton Electrical Ip Gmbh & Co. Kg Schaltgerät und Verfahren zur Steuerung
CN111600277B (zh) * 2020-05-21 2022-05-17 中国南方电网有限责任公司 一种应用于过流保护的延时计算方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4347541A (en) * 1981-01-14 1982-08-31 Gte Laboratories Incorporated Circuit breaker
US4442472A (en) * 1982-03-26 1984-04-10 Siemens-Allis, Inc. Solid state trip circuit with digital timer
US4631625A (en) * 1984-09-27 1986-12-23 Siemens Energy & Automation, Inc. Microprocessor controlled circuit breaker trip unit
US4752853A (en) * 1987-02-20 1988-06-21 Westinghouse Electric Corp. Circuit interrupter apparatus with an integral trip curve display
JPH03270631A (ja) * 1990-03-16 1991-12-02 Mitsubishi Electric Corp ４極回路遮断器
US5270898A (en) * 1990-12-28 1993-12-14 Westinghouse Electric Corp. Sure chip plus

Also Published As

Publication number Publication date
CN1052582C (zh) 2000-05-17
US5483408A (en) 1996-01-09
DE69507655T2 (de) 1999-09-30
EP0674376A3 (fr) 1996-06-12
DE69507655D1 (de) 1999-03-18
EP0674376A2 (fr) 1995-09-27
CA2145471A1 (fr) 1995-09-26
AU683715B2 (en) 1997-11-20
KR100326364B1 (ko) 2002-07-02
KR950034963A (ko) 1995-12-28
EP0674376B1 (fr) 1999-02-03
JPH0847161A (ja) 1996-02-16
CA2145471C (fr) 2001-08-21
CN1124418A (zh) 1996-06-12
BR9500985A (pt) 1995-10-24
AU1501795A (en) 1995-10-05
JP3437676B2 (ja) 2003-08-18

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