JPS464222A - - Google Patents

Info

Publication number
JPS464222A
JPS464222A JP1884871A JP1884871A JPS464222A JP S464222 A JPS464222 A JP S464222A JP 1884871 A JP1884871 A JP 1884871A JP 1884871 A JP1884871 A JP 1884871A JP S464222 A JPS464222 A JP S464222A
Authority
JP
Japan
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.)
Pending
Application number
JP1884871A
Other languages
Japanese (ja)
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
Priority to US26864A priority Critical patent/US3636541A/en
Application filed filed Critical
Priority to JP1884871A priority patent/JPS464222A/ja
Priority to FR717112492A priority patent/FR2085956B3/fr
Priority to CA110033A priority patent/CA929226A/en
Priority to DE19712117388 priority patent/DE2117388A1/de
Priority to GB2471671*A priority patent/GB1340714A/en
Publication of JPS464222A publication Critical patent/JPS464222A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H02H3/24—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 undervoltage or no-voltage
    • H02H3/253—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 undervoltage or no-voltage for multiphase applications, e.g. phase interruption
    • 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
    • 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
    • H02H3/26—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
    • H02H3/325—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 involving voltage comparison

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Power Conversion In General (AREA)
  • Measurement Of Current Or Voltage (AREA)
JP1884871A 1970-04-09 1971-03-31 Pending JPS464222A (show.php)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US26864A US3636541A (en) 1970-04-09 1970-04-09 Loss of phase detector for a polyphase power system
JP1884871A JPS464222A (show.php) 1970-04-09 1971-03-31
FR717112492A FR2085956B3 (show.php) 1970-04-09 1971-04-08
CA110033A CA929226A (en) 1970-04-09 1971-04-08 Loss of phase detector for a polyphase power system
DE19712117388 DE2117388A1 (de) 1970-04-09 1971-04-08 Vorrichtung zur Feststellung eines Leistungsabfalls in einer Phase eines Mehrphasen-Netzgerätes
GB2471671*A GB1340714A (en) 1970-04-09 1971-04-19 Loss of voltage detector for a polyphase power system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2686470A 1970-04-09 1970-04-09
JP1884871A JPS464222A (show.php) 1970-04-09 1971-03-31

Publications (1)

Publication Number Publication Date
JPS464222A true JPS464222A (show.php) 1971-11-11

Family

ID=53052580

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1884871A Pending JPS464222A (show.php) 1970-04-09 1971-03-31

Country Status (6)

Country Link
US (1) US3636541A (show.php)
JP (1) JPS464222A (show.php)
CA (1) CA929226A (show.php)
DE (1) DE2117388A1 (show.php)
FR (1) FR2085956B3 (show.php)
GB (1) GB1340714A (show.php)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938933U (show.php) * 1972-07-07 1974-04-05
JPS5219238A (en) * 1975-08-06 1977-02-14 Matsushita Electric Ind Co Ltd Phase deficit detection apparatus
JPS5450297A (en) * 1977-09-28 1979-04-20 Maruko Denki Kouji Kk Electric wire burglar alarm safety device
JPS5543393U (show.php) * 1978-09-15 1980-03-21
JPS58139626A (ja) * 1982-02-10 1983-08-19 三菱電機株式会社 欠相検出回路

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919703A (en) * 1974-04-08 1975-11-11 Bertea Corp Fault detection system for transducers
US4008417A (en) * 1974-07-29 1977-02-15 General Equipment And Manufacturing Company, Inc. Phase loss detector
US4021703A (en) * 1975-06-02 1977-05-03 Westinghouse Electric Corporation Phase imbalance detection circuit
SE419810B (sv) * 1975-06-23 1981-08-24 Charbonnages Ste Chimique Anordning for avkenning av vexelstrom
US4024438A (en) * 1975-10-30 1977-05-17 Coilcraft, Inc. Delta phase loss detector
US4346307A (en) * 1978-11-03 1982-08-24 S & C Electric Company Voltage-unbalance detector for polyphase electrical systems
US4354214A (en) * 1979-09-11 1982-10-12 Walton John F Motor protection circuit
FR2468238A1 (fr) * 1979-10-16 1981-04-30 Telemecanique Electrique Dispositif electronique de protection d'un moteur electrique contre les surcharges et la perte d'une phase de la tension alternative triphasee d'alimentation
US4379317A (en) * 1981-04-27 1983-04-05 Westinghouse Electric Corp. Solid-state load protection system having loss of phase sensing
US4393430A (en) * 1981-06-08 1983-07-12 Hughes Jack H Multi-phase failure detector
NL8300449A (nl) * 1983-02-07 1984-09-03 Philips Nv Optische indikatie-inrichting.
US4507713A (en) * 1983-10-11 1985-03-26 Allied Corporation Wide frequency multi-phase undervoltage detection circuit
US5557180A (en) * 1993-06-30 1996-09-17 Sgs-Thomson Microelectronics, Inc. Circuit and method for operating a 3-phase motor with a uni-coil phase commutation scheme
US5665256A (en) * 1995-12-19 1997-09-09 The Esab Group, Inc. Cutting or welding system having phase loss detector and method of detecting phase loss for same
CN102411824A (zh) * 2011-12-23 2012-04-11 浙江师范大学 智能端子报警器电路

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4938933U (show.php) * 1972-07-07 1974-04-05
JPS5219238A (en) * 1975-08-06 1977-02-14 Matsushita Electric Ind Co Ltd Phase deficit detection apparatus
JPS5450297A (en) * 1977-09-28 1979-04-20 Maruko Denki Kouji Kk Electric wire burglar alarm safety device
JPS5543393U (show.php) * 1978-09-15 1980-03-21
JPS58139626A (ja) * 1982-02-10 1983-08-19 三菱電機株式会社 欠相検出回路

Also Published As

Publication number Publication date
CA929226A (en) 1973-06-26
US3636541A (en) 1972-01-18
FR2085956A3 (show.php) 1971-12-31
FR2085956B3 (show.php) 1974-02-15
DE2117388A1 (de) 1971-10-28
GB1340714A (en) 1973-12-12

Similar Documents

Publication Publication Date Title
CH1353371A4 (show.php)
FR2085956B3 (show.php)
AU2044470A (show.php)
AU1473870A (show.php)
AU1517670A (show.php)
AU1716970A (show.php)
AU1833270A (show.php)
AU2017870A (show.php)
AU1336970A (show.php)
AU2085370A (show.php)
AU2130570A (show.php)
AR195465A1 (show.php)
AU1841070A (show.php)
AU1918570A (show.php)
AU1328670A (show.php)
AU2144270A (show.php)
AU2131570A (show.php)
AU2130770A (show.php)
AU1343870A (show.php)
AU2119370A (show.php)
AU2115870A (show.php)
AU2112570A (show.php)
AU1581370A (show.php)
AU2061170A (show.php)
AU1591370A (show.php)