CA948279A - Dynamic ground detector - Google Patents

Dynamic ground detector

Info

Publication number: CA948279A
Authority: CA; Canada
Prior art keywords: dynamic ground; ground detector; detector; dynamic; ground
Prior art date: 1972-05-09
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

CA141,640A

Other languages

English (en)

Other versions

CA141640S (en

Inventor

Victor Beresnikow

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.)

Canadian Stackpole Ltd

Original Assignee

Canadian Stackpole 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.)

1972-05-09

Filing date

1972-05-09

Publication date

1974-05-28

1972-05-09 Application filed by Canadian Stackpole Ltd filed Critical Canadian Stackpole Ltd

1972-05-09 Priority to CA141,640A priority Critical patent/CA948279A/en

1972-05-15 Priority to US00253118A priority patent/US3757169A/en

1973-08-18 Priority to DE19732341856 priority patent/DE2341856A1/de

1973-08-21 Priority to AU59466/73A priority patent/AU5946673A/en

1973-08-24 Priority to FR7330721A priority patent/FR2241790A1/fr

1974-05-28 Application granted granted Critical

1974-05-28 Publication of CA948279A publication Critical patent/CA948279A/en

Status Expired legal-status Critical Current

Classifications

- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/08—Limitation or suppression of earth fault currents, e.g. Petersen coil
- 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
- G01R31/52—Testing for short-circuits, leakage current or ground faults

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Measurement Of Resistance Or Impedance (AREA)

CA141,640A 1972-05-09 1972-05-09 Dynamic ground detector Expired CA948279A (en)

Priority Applications (5)

Application Number	Priority Date	Filing Date	Title
CA141,640A CA948279A (en)	1972-05-09	1972-05-09	Dynamic ground detector
US00253118A US3757169A (en)	1972-05-09	1972-05-15	Dynamic ground detector
DE19732341856 DE2341856A1 (de)	1972-05-09	1973-08-18	Elektrische schaltung als leckanzeige bei elektrischen leitungen
AU59466/73A AU5946673A (en)	1972-05-09	1973-08-21	Dynamic ground detector
FR7330721A FR2241790A1 (de)	1972-05-09	1973-08-24

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA141,640A CA948279A (en)	1972-05-09	1972-05-09	Dynamic ground detector

Publications (1)

Publication Number	Publication Date
CA948279A true CA948279A (en)	1974-05-28

Family

ID=4093222

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA141,640A Expired CA948279A (en)	1972-05-09	1972-05-09	Dynamic ground detector

Country Status (5)

Country	Link
US (1)	US3757169A (de)
AU (1)	AU5946673A (de)
CA (1)	CA948279A (de)
DE (1)	DE2341856A1 (de)
FR (1)	FR2241790A1 (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3975663A (en) *	1972-06-13	1976-08-17	Western Industries (Proprietary) Ltd.	Method of an apparatus for detecting ground faults in electrical systems
US3868665A (en) *	1974-02-08	1975-02-25	Midland Ross Corp	Ground fault current detector
US3947759A (en) *	1974-09-16	1976-03-30	Continental Engineering, Inc.	Leakage current monitoring system and method
US3978465A (en) *	1974-10-25	1976-08-31	Esb Incorporated	Line isolation monitor
US4159501A (en) *	1975-03-27	1979-06-26	Kerr-Mcgee Nuclear Corporation	Method and apparatus for indicating the leakage resistance in an electrical system
US3969711A (en) *	1975-04-25	1976-07-13	Litton Systems, Inc.	Line isolation monitor and alarm
US3976987A (en) *	1975-08-29	1976-08-24	Square D Company	Dual channel dynamic line isolation monitor
US4155852A (en) *	1976-11-19	1979-05-22	Halbert Fischel	Low leakage current medical instrument
US4188574A (en) *	1978-03-27	1980-02-12	Instrumentation Specialties Company	AC Detector for DC ground faults and high capacitance in high-voltage DC power supplies
US4605827A (en) *	1980-02-07	1986-08-12	Dcm Industries, Inc.	Line fault discriminator
US4364007A (en) *	1980-04-22	1982-12-14	General Electric Company	Unintentional impedance detection system
US4864242A (en) *	1988-09-06	1989-09-05	Westinghouse Electric Corp.	Automatic field winding ground detector and locator
US5018042A (en) *	1989-12-13	1991-05-21	Williston Dale B	Tingle voltage filter
US5530363A (en) *	1994-10-31	1996-06-25	John Gaughan	DC ground fault detecting apparatus with an auto-null circuit and method
WO2002037908A2 (en) *	2000-11-06	2002-05-10	Ballard Power Systems Corporation	Active ground current reduction device
US7030623B1 (en)	2004-02-03	2006-04-18	Kevin Carpenter	Electrical short tracing apparatus and method
US7498820B2 (en) *	2006-03-21	2009-03-03	General Electric Company	Method, apparatus and computer-readable code for detecting an incipient ground fault in an electrical propulsion system
US7498819B2 (en) *	2006-03-21	2009-03-03	General Electric Company	Method, apparatus and computer-readable code for detecting an incipient ground fault in an electrical propulsion system
US7501830B2 (en) *	2006-03-21	2009-03-10	General Electric Company	Method, apparatus and computer-readable code for detecting an incipient ground fault in an electrical propulsion system
US7248057B1 (en) *	2006-03-21	2007-07-24	General Electric Company	Method, apparatus and computer-readable code for detecting on the fly an incipient ground fault in an electrical propulsion system of a locomotive
US8611057B2 (en) *	2008-09-09	2013-12-17	Inshore Holdings, Llc	LED module for sign channel letters and driving circuit
WO2011153251A1 (en) *	2010-06-01	2011-12-08	Aerovironment, Inc.	Utility ground detection
US9689910B2 (en) *	2013-06-10	2017-06-27	Wabtec Holding Corp.	Detecting faults in a two-wire power line
US10209291B2 (en) *	2016-02-04	2019-02-19	The University Of Akron	System and method for condition monitoring of electricity transmission structures
CN113759181B (zh) *	2020-06-01	2024-08-16	台达电子工业股份有限公司	直流链电容电压不平衡的检测装置

1972
- 1972-05-09 CA CA141,640A patent/CA948279A/en not_active Expired
- 1972-05-15 US US00253118A patent/US3757169A/en not_active Expired - Lifetime
1973
- 1973-08-18 DE DE19732341856 patent/DE2341856A1/de active Pending
- 1973-08-21 AU AU59466/73A patent/AU5946673A/en not_active Expired
- 1973-08-24 FR FR7330721A patent/FR2241790A1/fr not_active Withdrawn

Also Published As

Publication number	Publication date
DE2341856A1 (de)	1975-02-27
FR2241790A1 (de)	1975-03-21
AU5946673A (en)	1975-02-27
US3757169A (en)	1973-09-04

Publication	Publication Date	Title
CA948279A (en)	1974-05-28	Dynamic ground detector
CA1024239A (en)	1978-01-10	Low noise detector amplifier
CA938674A (en)	1973-12-18	Ground fault detector
AU474076B2 (en)	1976-07-15	Tone detector
CA984920A (en)	1976-03-02	Peak detector
CA971652A (en)	1975-07-22	Ice detector
CA972828A (en)	1975-08-12	Voltage detector
CA987034A (en)	1976-04-06	Semiconductor localization detector
CA1001242A (en)	1976-12-07	If amplifier
CA979101A (en)	1975-12-02	Pulse detector
CA972038A (en)	1975-07-29	Fail-safe level detector
CA1008175A (en)	1977-04-05	Ground range computer
CA902273A (en)	1972-06-06	Radiation detector
AU464786B2 (en)	1975-09-04	Vital level detector
CA910990A (en)	1972-09-26	Extreme level detector
CA900059A (en)	1972-05-09	Detector assembly
CA951806A (en)	1974-07-23	Detector system
CA912218A (en)	1972-10-17	Castor
CA969101A (en)	1975-06-10	Detector device
CA917198A (en)	1972-12-19	Load presence detector
CA914732A (en)	1972-11-14	Load presence detector
CA916547A (en)	1972-12-12	Ends down detector
CA826272A (en)	1969-10-28	Ground detector
CA892240A (en)	1972-02-01	Vibration detector
CA915257A (en)	1972-11-21	Selective-random cable detector