AU1965476A – Crossfield ground fault sensor
– Google Patents
AU1965476A – Crossfield ground fault sensor
– Google Patents
Crossfield ground fault sensor
Info
Publication number
AU1965476A
AU1965476A
AU19654/76A
AU1965476A
AU1965476A
AU 1965476 A
AU1965476 A
AU 1965476A
AU 19654/76 A
AU19654/76 A
AU 19654/76A
AU 1965476 A
AU1965476 A
AU 1965476A
AU 1965476 A
AU1965476 A
AU 1965476A
Authority
AU
Australia
Prior art keywords
crossfield
ground fault
fault sensor
sensor
ground
Prior art date
1975-12-03
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.)
Expired
Application number
AU19654/76A
Other versions
AU499848B2
(en
Inventor
E. C. Hudson Jr
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.)
It-E Industries Ltd
Original Assignee
ITE Industries 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.)
1975-12-03
Filing date
1976-11-15
Publication date
1978-05-25
1976-11-15
Application filed by ITE Industries Ltd
filed
Critical
ITE Industries Ltd
1978-05-25
Publication of AU1965476A
publication
Critical
patent/AU1965476A/en
1979-05-03
Application granted
granted
Critical
1979-05-03
Publication of AU499848B2
publication
Critical
patent/AU499848B2/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F29/00—Variable transformers or inductances not covered by group H01F21/00
H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
H01F29/146—Constructional details
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F38/00—Adaptations of transformers or inductances for specific applications or functions
H01F38/20—Instruments transformers
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
H02H3/331—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 responsive to earthing of the neutral conductor
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
H01F29/00—Variable transformers or inductances not covered by group H01F21/00
H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by unbalance of two or more currents or voltages, e.g. for differential protection
H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by unbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
AU19654/76A
1975-12-03
1976-11-15
Crossfield ground fault sensor
Expired
AU499848B2
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US05/637,233
US4021729A
(en)
1975-12-03
1975-12-03
Cross-field ground fault sensor
USUS637,233
1975-12-03
Publications (2)
Publication Number
Publication Date
AU1965476A
true
AU1965476A
(en)
1978-05-25
AU499848B2
AU499848B2
(en)
1979-05-03
Family
ID=24555089
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
AU19654/76A
Expired
AU499848B2
(en)
1975-12-03
1976-11-15
Crossfield ground fault sensor
Country Status (3)
Country
Link
US
(1)
US4021729A
(en)
AU
(1)
AU499848B2
(en)
CA
(1)
CA1049097A
(en)
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Publication date
Assignee
Title
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1977-06-20
1979-06-26
Bereskin Alexander B
Ground fault detection and protection circuit
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1979-04-09
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FAULT CIRCUIT BREAKER
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1978-06-08
1980-01-04
Mayer Ferdy
DIFFERENTIAL TRANSFORMER OF ELECTRICAL PROTECTION RELAYS
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1982-03-16
Fuji Electric Co., Ltd.
Earth-leakage-current circuit breaker system
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DC Ground fault detector wherein fault is sensed by noting imbalance of magnetic flux in a magnetic core
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1982-09-03
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Earth trouble detecting device for dc power transmission system
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1988-03-18
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CURRENT SENSOR AND METHOD FOR IMPLEMENTING SAME
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1988-04-28
1990-08-17
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Briand J
Magnetic resonance signal acquisition methods
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1989-06-23
1993-06-29
Fuji Electric Co., Ltd.
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1990-03-27
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Watson Michael
Cable coupling transformer
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Moore Products Co.
Electrical fault detector in remote systems using a saturable core
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1992-11-04
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Beeman Terrence M
A fault-locator for use in locating high-resistance ground-faults in or on concentric ground electric power cables
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1993-06-25
1997-09-15
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High-sensitivity fault current detection device
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1994-08-24
Circuit Breaker Ind
An earth leakage unit
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Tocco, Inc.
Device for monitoring current in an induction heating coil
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1995-11-01
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Kabushiki Kaisha Y.Y.L.
Superconducting conductor system
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1997-08-28
1999-03-04
General Electric Company
Self powered current sensor
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1997-09-12
2002-06-04
General Electric Company
Primary current conductor configurations for a residential electronic meter
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1999-03-05
2000-09-22
Sony Corp
High frequency current detecting device
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2000-03-06
2002-10-01
General Electric Company
Circuit breaker comprising a current transformer with a partial air gap
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2002-03-07
2003-05-27
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Current sensor programmable through connector
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2002-04-18
2003-11-06
Toshiba Corp
Current detection device and semiconductor device
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2002-11-13
2008-11-25
Power-One, Inc.
System for controlling and monitoring an array of point-of-load regulators by a host
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2002-12-21
2011-02-01
Power-One, Inc.
Method and system for controlling and monitoring an array of point-of-load regulators
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2002-12-21
2010-11-16
Power-One, Inc.
System for controlling an array of point-of-load regulators and auxiliary devices
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2002-12-21
2007-09-04
Power-One, Inc.
Method and system for controlling an array of point-of-load regulators and auxiliary devices
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2002-12-21
2010-06-15
Power-One, Inc.
Method and system for controlling and monitoring an array of point-of-load regulators
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2002-12-21
2010-06-22
Power-One, Inc.
Method and system for optimizing filter compensation coefficients for a digital power control system
US20050231153A1
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2004-04-20
2005-10-20
Scott Dewey
High voltage isolation detection of a fuel cell system using magnetic field cancellation
US7180300B2
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2004-12-10
2007-02-20
General Electric Company
System and method of locating ground fault in electrical power distribution system
US8018235B2
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*
2006-11-02
2011-09-13
Texas Instruments Incorporated
Methods and apparatus to facilitate ground fault detection with a single coil and an oscillator
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2007-10-30
2010-11-16
Power-One, Inc.
Isolated current to voltage, voltage to voltage converter
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2008-01-04
2008-11-18
The Boeing Company
System and method for precision current source
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2008-05-27
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Apparatus and method of optimizing power system efficiency using a power loss model
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High sensitivity differential current transformer for insulation health monitoring
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High sensitivity differential current transformer for insulation health monitoring
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Semiconductor Components Industries, Llc
Method for determining a circuit element parameter
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2016-10-25
Semiconductor Components Industries, Llc
Ground fault circuit interrupter and method
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Semiconductor Components Industries, Llc
Ground fault circuit interrupter and method
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Schneider Electric USA, Inc.
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1955-01-27
1956-03-20
Alfred A Windsor
Current measuring device
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Method and device for displaying or measuring direct currents by means of magnetic amplification
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Ground fault detector
1975
1975-12-03
US
US05/637,233
patent/US4021729A/en
not_active
Expired – Lifetime
1976
1976-10-25
CA
CA76264069A
patent/CA1049097A/en
not_active
Expired
1976-11-15
AU
AU19654/76A
patent/AU499848B2/en
not_active
Expired
Also Published As
Publication number
Publication date
AU499848B2
(en)
1979-05-03
CA1049097A
(en)
1979-02-20
US4021729A
(en)
1977-05-03
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