GB2499690B - A method and apparatus for detecting when a current and/or voltage has exceeded a predetermined level - Google Patents

A method and apparatus for detecting when a current and/or voltage has exceeded a predetermined level

Info

Publication number
GB2499690B
GB2499690B GB1218622.7A GB201218622A GB2499690B GB 2499690 B GB2499690 B GB 2499690B GB 201218622 A GB201218622 A GB 201218622A GB 2499690 B GB2499690 B GB 2499690B
Authority
GB
United Kingdom
Prior art keywords
exceeded
detecting
voltage
current
predetermined level
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
GB1218622.7A
Other versions
GB201218622D0 (en
GB2499690A (en
Inventor
Guy Bertrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Scotia Gas Networks Ltd
Original Assignee
Scotia Gas Networks Ltd
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 Scotia Gas Networks Ltd filed Critical Scotia Gas Networks Ltd
Publication of GB201218622D0 publication Critical patent/GB201218622D0/en
Publication of GB2499690A publication Critical patent/GB2499690A/en
Application granted granted Critical
Publication of GB2499690B publication Critical patent/GB2499690B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details
    • G01R1/06—Measuring leads; Measuring probes
    • G01R1/067—Measuring probes
    • G01R1/06788—Hand-held or hand-manipulated probes, e.g. for oscilloscopes or for portable test instruments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/12—Circuits for multi-testers, i.e. multimeters, e.g. for measuring voltage, current, or impedance at will
GB1218622.7A 2012-02-26 2012-10-16 A method and apparatus for detecting when a current and/or voltage has exceeded a predetermined level Active GB2499690B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1203376.7A GB201203376D0 (en) 2012-02-26 2012-02-26 A method and apparatus for detectong when a current and/or voltage has exceeded a predetermined level

Publications (3)

Publication Number Publication Date
GB201218622D0 GB201218622D0 (en) 2012-11-28
GB2499690A GB2499690A (en) 2013-08-28
GB2499690B true GB2499690B (en) 2014-08-06

Family

ID=45991798

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1203376.7A Ceased GB201203376D0 (en) 2012-02-26 2012-02-26 A method and apparatus for detectong when a current and/or voltage has exceeded a predetermined level
GB1218622.7A Active GB2499690B (en) 2012-02-26 2012-10-16 A method and apparatus for detecting when a current and/or voltage has exceeded a predetermined level

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1203376.7A Ceased GB201203376D0 (en) 2012-02-26 2012-02-26 A method and apparatus for detectong when a current and/or voltage has exceeded a predetermined level

Country Status (1)

Country Link
GB (2) GB201203376D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111833574A (en) * 2020-07-14 2020-10-27 广东格美淇电器有限公司 Voltage induction type alarm device and alarm method thereof

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699432A (en) * 1970-06-25 1972-10-17 Environment Metrology Corp Electrical shock hazard detection system with station scanning and indicating means
US3831160A (en) * 1973-10-01 1974-08-20 Gen Electric Voltage and current monitoring system
US4398188A (en) * 1981-10-07 1983-08-09 Feigal Donn L Ground circuit voltage detector
US4862142A (en) * 1987-10-26 1989-08-29 Knight Eldon L Circuit with memory for detecting intermittent changes in resistance, current, voltage, continuity, power interruption, light, and temperature
GB2288667A (en) * 1994-04-19 1995-10-25 Wire Watcher Co Ltd Voltage detector
GB2310728A (en) * 1996-02-29 1997-09-03 Lloyd Jones David Voltage detection and alarm device
US5684466A (en) * 1995-09-12 1997-11-04 The Charles Machine Work, Inc. Electrical strike system control for subsurface boring equipment
US5952820A (en) * 1996-02-16 1999-09-14 Thrasher; M. D. Foreign voltage detector
US20070120694A1 (en) * 2005-11-30 2007-05-31 Caterpillar Inc. High voltage detection system
US20070159739A1 (en) * 2002-03-28 2007-07-12 Onachilla Michael D Voltage Sensing Hand Tool
US20090128348A1 (en) * 2007-11-20 2009-05-21 Hsu Kang-Neng Overload alarm device and method thereof
US20110178649A1 (en) * 2008-08-14 2011-07-21 Giovanni Pieri Method for preventing electric shock by contact with connected-to-ground electric appliances and installations, and apparatus therefor
US20110313583A1 (en) * 2010-06-22 2011-12-22 Unified Packet Systems Corp. Integrated Wireless Power Control Device

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699432A (en) * 1970-06-25 1972-10-17 Environment Metrology Corp Electrical shock hazard detection system with station scanning and indicating means
US3831160A (en) * 1973-10-01 1974-08-20 Gen Electric Voltage and current monitoring system
US4398188A (en) * 1981-10-07 1983-08-09 Feigal Donn L Ground circuit voltage detector
US4862142A (en) * 1987-10-26 1989-08-29 Knight Eldon L Circuit with memory for detecting intermittent changes in resistance, current, voltage, continuity, power interruption, light, and temperature
GB2288667A (en) * 1994-04-19 1995-10-25 Wire Watcher Co Ltd Voltage detector
US5684466A (en) * 1995-09-12 1997-11-04 The Charles Machine Work, Inc. Electrical strike system control for subsurface boring equipment
US5952820A (en) * 1996-02-16 1999-09-14 Thrasher; M. D. Foreign voltage detector
GB2310728A (en) * 1996-02-29 1997-09-03 Lloyd Jones David Voltage detection and alarm device
US20070159739A1 (en) * 2002-03-28 2007-07-12 Onachilla Michael D Voltage Sensing Hand Tool
US20070120694A1 (en) * 2005-11-30 2007-05-31 Caterpillar Inc. High voltage detection system
US20090128348A1 (en) * 2007-11-20 2009-05-21 Hsu Kang-Neng Overload alarm device and method thereof
US20110178649A1 (en) * 2008-08-14 2011-07-21 Giovanni Pieri Method for preventing electric shock by contact with connected-to-ground electric appliances and installations, and apparatus therefor
US20110313583A1 (en) * 2010-06-22 2011-12-22 Unified Packet Systems Corp. Integrated Wireless Power Control Device

Also Published As

Publication number Publication date
GB201203376D0 (en) 2012-04-11
GB201218622D0 (en) 2012-11-28
GB2499690A (en) 2013-08-28

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