WO2008008091A3 - Interruption circuit with improved shield - Google Patents

Interruption circuit with improved shield Download PDF

Info

Publication number
WO2008008091A3
WO2008008091A3 PCT/US2006/049601 US2006049601W WO2008008091A3 WO 2008008091 A3 WO2008008091 A3 WO 2008008091A3 US 2006049601 W US2006049601 W US 2006049601W WO 2008008091 A3 WO2008008091 A3 WO 2008008091A3
Authority
WO
WIPO (PCT)
Prior art keywords
wire
insulated
disconnect switch
conductive shield
power cable
Prior art date
Application number
PCT/US2006/049601
Other languages
French (fr)
Other versions
WO2008008091A2 (en
Inventor
Thomas S Williams
Jr Frank S Brugner
Paul R Gandolfi
Original Assignee
Technology Res 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
Priority claimed from US11/482,285 external-priority patent/US7423854B2/en
Priority claimed from US11/482,251 external-priority patent/US7623329B2/en
Application filed by Technology Res Corp filed Critical Technology Res Corp
Publication of WO2008008091A2 publication Critical patent/WO2008008091A2/en
Publication of WO2008008091A3 publication Critical patent/WO2008008091A3/en

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
    • H02H3/26—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—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 difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers

Abstract

An interrupter circuit is disclosed for interrupting power in a power cable from a power source. The power cable comprises an insulated first wire and an insulated second wire with a conductive shield surrounding the first wire and the second wire. A non-insulated drain wire contacts the conductive shield. An outer insulating layer is molded about the conductive shield. A disconnect switch is interposed between the power source and the power cable with a disconnect switch driver controlling the disconnect switch. A sensing circuit is connected between the drain wire and the disconnect switch driver for sensing a leakage current between the conductive shield and one of the insulated first wire and the insulated second wire for opening the disconnect switch for disconnecting the power cable from the power source.
PCT/US2006/049601 2006-07-07 2006-12-29 Interruption circuit with improved shield WO2008008091A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/482,285 US7423854B2 (en) 2006-07-07 2006-07-07 Interruption circuit with improved shield
US11/482,251 US7623329B2 (en) 2005-01-04 2006-07-07 Leakage current detection and interruption circuit with improved shield
US11/482,285 2006-07-07
US11/482,251 2006-07-07

Publications (2)

Publication Number Publication Date
WO2008008091A2 WO2008008091A2 (en) 2008-01-17
WO2008008091A3 true WO2008008091A3 (en) 2008-06-12

Family

ID=38923717

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/049601 WO2008008091A2 (en) 2006-07-07 2006-12-29 Interruption circuit with improved shield

Country Status (1)

Country Link
WO (1) WO2008008091A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2550251C2 (en) * 2009-10-30 2015-05-10 Акер Сабси АС High power integrated composite cable
CN104901272A (en) * 2015-05-28 2015-09-09 深圳市良辉科技有限公司 Earth leakage protection apparatus with conductor electric leakage detection function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697896A (en) * 1971-02-11 1972-10-10 Westinghouse Electric Corp Signal transmission system
US5661623A (en) * 1993-09-02 1997-08-26 Hubbell Corporation Ground fault circuit interrupter plug
US6414829B1 (en) * 1998-02-19 2002-07-02 Square D Company Arc fault circuit interrupter
US20040070899A1 (en) * 2002-10-09 2004-04-15 Gershen Bernard J. Leakage current detection interrupter extension cord with cord diagnostics

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697896A (en) * 1971-02-11 1972-10-10 Westinghouse Electric Corp Signal transmission system
US5661623A (en) * 1993-09-02 1997-08-26 Hubbell Corporation Ground fault circuit interrupter plug
US6414829B1 (en) * 1998-02-19 2002-07-02 Square D Company Arc fault circuit interrupter
US20040070899A1 (en) * 2002-10-09 2004-04-15 Gershen Bernard J. Leakage current detection interrupter extension cord with cord diagnostics

Also Published As

Publication number Publication date
WO2008008091A2 (en) 2008-01-17

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