GB2559120B - Method and apparatus for determining impedance of live-earth loop of an electrical power supply - Google Patents

Method and apparatus for determining impedance of live-earth loop of an electrical power supply

Info

Publication number
GB2559120B
GB2559120B GB1701004.2A GB201701004A GB2559120B GB 2559120 B GB2559120 B GB 2559120B GB 201701004 A GB201701004 A GB 201701004A GB 2559120 B GB2559120 B GB 2559120B
Authority
GB
United Kingdom
Prior art keywords
live
power supply
electrical power
earth loop
determining impedance
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
GB1701004.2A
Other versions
GB201701004D0 (en
GB2559120A (en
Inventor
Wallace James
ying Thomas
Osborne Andrew
Barker Anthony
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.)
SEAWARD ELECTRONICS Ltd
Original Assignee
SEAWARD ELECTRONICS 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 SEAWARD ELECTRONICS Ltd filed Critical SEAWARD ELECTRONICS Ltd
Priority to GB1701004.2A priority Critical patent/GB2559120B/en
Publication of GB201701004D0 publication Critical patent/GB201701004D0/en
Publication of GB2559120A publication Critical patent/GB2559120A/en
Application granted granted Critical
Publication of GB2559120B publication Critical patent/GB2559120B/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
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • G01R27/18—Measuring resistance to earth, i.e. line to ground
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • 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
    • H02H3/16—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 fault current to earth, frame or mass
    • H02H3/162—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 fault current to earth, frame or mass for ac systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
GB1701004.2A 2017-01-20 2017-01-20 Method and apparatus for determining impedance of live-earth loop of an electrical power supply Active GB2559120B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1701004.2A GB2559120B (en) 2017-01-20 2017-01-20 Method and apparatus for determining impedance of live-earth loop of an electrical power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1701004.2A GB2559120B (en) 2017-01-20 2017-01-20 Method and apparatus for determining impedance of live-earth loop of an electrical power supply

Publications (3)

Publication Number Publication Date
GB201701004D0 GB201701004D0 (en) 2017-03-08
GB2559120A GB2559120A (en) 2018-08-01
GB2559120B true GB2559120B (en) 2019-05-08

Family

ID=58463090

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1701004.2A Active GB2559120B (en) 2017-01-20 2017-01-20 Method and apparatus for determining impedance of live-earth loop of an electrical power supply

Country Status (1)

Country Link
GB (1) GB2559120B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112329207B (en) * 2020-10-16 2024-01-26 东风汽车股份有限公司 Wire selecting method for automobile starting loop

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2381322A (en) * 2001-10-24 2003-04-30 Martindale Electric Company Lt Loop impedance meter
GB2408809A (en) * 2003-12-03 2005-06-08 Kyoritsu Elect Inst Work Power line loop impedance testing
EP1950575A2 (en) * 2007-01-23 2008-07-30 Seaward Electronic Limited Method and apparatus for determining impedance of live-earth loop of electrical power supply

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2381322A (en) * 2001-10-24 2003-04-30 Martindale Electric Company Lt Loop impedance meter
GB2408809A (en) * 2003-12-03 2005-06-08 Kyoritsu Elect Inst Work Power line loop impedance testing
EP1950575A2 (en) * 2007-01-23 2008-07-30 Seaward Electronic Limited Method and apparatus for determining impedance of live-earth loop of electrical power supply

Also Published As

Publication number Publication date
GB201701004D0 (en) 2017-03-08
GB2559120A (en) 2018-08-01

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