IT7849965A0 - Connessione a terra dispositivo a circuito di prova di - Google Patents

Connessione a terra dispositivo a circuito di prova di

Info

Publication number
IT7849965A0
IT7849965A0 IT7849965A IT4996578A IT7849965A0 IT 7849965 A0 IT7849965 A0 IT 7849965A0 IT 7849965 A IT7849965 A IT 7849965A IT 4996578 A IT4996578 A IT 4996578A IT 7849965 A0 IT7849965 A0 IT 7849965A0
Authority
IT
Italy
Prior art keywords
circuit device
test circuit
earth connection
connection test
earth
Prior art date
Application number
IT7849965A
Other languages
English (en)
Other versions
IT1202828B (it
Original Assignee
Boots Co 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 Boots Co Ltd filed Critical Boots Co Ltd
Publication of IT7849965A0 publication Critical patent/IT7849965A0/it
Application granted granted Critical
Publication of IT1202828B publication Critical patent/IT1202828B/it

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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
    • H02H11/001—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of incorrect or interrupted earth connection
    • 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
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Relay Circuits (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
IT49965/78A 1977-06-23 1978-06-21 Dispositivo a circuito di prova di connessione a terra IT1202828B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2632877 1977-06-23

Publications (2)

Publication Number Publication Date
IT7849965A0 true IT7849965A0 (it) 1978-06-21
IT1202828B IT1202828B (it) 1989-02-09

Family

ID=10241941

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49965/78A IT1202828B (it) 1977-06-23 1978-06-21 Dispositivo a circuito di prova di connessione a terra

Country Status (6)

Country Link
US (1) US4415944A (it)
JP (1) JPS549750A (it)
CH (1) CH632093A5 (it)
DE (1) DE2827448A1 (it)
FR (1) FR2395512A1 (it)
IT (1) IT1202828B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4882522A (en) * 1988-03-25 1989-11-21 Irin Paris Neon circuit malfunction detector
DE4029175C2 (de) * 1990-09-13 1993-10-28 Lauerer Friedrich Elektrische Schutzeinrichtung
US5614889A (en) * 1994-04-14 1997-03-25 Kim; Jung M. Apparatus and methods for coupling a case of an electric appliance to an external ground and for detecting leakage current
US5808470A (en) * 1996-09-26 1998-09-15 Intel Corporation Ground fault detection for CATV devices
US20030043516A1 (en) * 1998-06-19 2003-03-06 Ahlstrom Michael R. Electrical ground fault protection circuit
US8837104B2 (en) * 2012-12-10 2014-09-16 Nidec Motor Corporation Motor programming tool with handle-mounted PCB
CN111478189B (zh) * 2020-05-11 2023-12-26 山西潞安环保能源开发股份有限公司常村煤矿 一种矿用远程在线多回路电气配电开关复电装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB813748A (en) * 1956-02-29 1959-05-21 Ici Ltd Improvements in and relating to protective systems for transportable electrical equipment
US2207202A (en) * 1938-12-23 1940-07-09 Deau James La Grounding safety switch and alarm for electrical apparatus
US3426342A (en) * 1966-05-23 1969-02-04 Physio Control Corp Ground absence detector and protective device
GB1135550A (en) * 1967-10-25 1968-12-04 George Andrew Douglas Gordon Improvements in or relating to electric circuit arrangements providing earth leakage protection
FR2057370A5 (it) * 1969-08-14 1971-05-21 Nudelmont Jean Claude
US3766434A (en) * 1971-08-09 1973-10-16 S Sherman Safety power distribution system
US3809961A (en) * 1972-05-25 1974-05-07 Albany Int Corp Electric outlet sentinel
GB1462383A (en) * 1973-04-06 1977-01-26 Goh Ken Lin Electrical safety device
GB1480736A (en) * 1973-08-23 1977-07-20 Matburn Ltd Electrodiathermy apparatus
US3905373A (en) * 1974-04-18 1975-09-16 Dentsply Res & Dev Electrosurgical device
US4011483A (en) * 1974-11-07 1977-03-08 The Ohio Brass Company Ground wire monitoring system
US3965395A (en) * 1975-07-02 1976-06-22 James W. Fair Power interrupter for electrical devices
US4110807A (en) * 1977-05-02 1978-08-29 Harvey Hubbell, Incorporated Continuity monitoring system

Also Published As

Publication number Publication date
JPS549750A (en) 1979-01-24
FR2395512B1 (it) 1983-07-08
IT1202828B (it) 1989-02-09
DE2827448A1 (de) 1979-01-11
FR2395512A1 (fr) 1979-01-19
US4415944A (en) 1983-11-15
CH632093A5 (fr) 1982-09-15

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970628