GR73622B - - Google Patents

Info

Publication number
GR73622B
GR73622B GR61257A GR800161257A GR73622B GR 73622 B GR73622 B GR 73622B GR 61257 A GR61257 A GR 61257A GR 800161257 A GR800161257 A GR 800161257A GR 73622 B GR73622 B GR 73622B
Authority
GR
Greece
Prior art keywords
pulses
magnetic
magnetization
derive
sequences
Prior art date
Application number
GR61257A
Other languages
English (en)
Inventor
Fritz Breimesser
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of GR73622B publication Critical patent/GR73622B/el

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
    • H02H3/26—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
    • H02H3/34—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 of a three-phase system
    • H02H3/347—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 of a three-phase system using summation current 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
    • H02H3/332—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 with means responsive to dc component in the fault current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
  • Alarm Systems (AREA)
  • Synchronous Machinery (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
GR61257A 1979-02-23 1980-12-12 GR73622B (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792907171 DE2907171A1 (de) 1979-02-23 1979-02-23 Verfahren zur ueberwachung von leiterstroemen auf einen fehlerstrom und anordnung zur durchfuehrung des verfahrens

Publications (1)

Publication Number Publication Date
GR73622B true GR73622B (el) 1984-03-26

Family

ID=6063791

Family Applications (1)

Application Number Title Priority Date Filing Date
GR61257A GR73622B (el) 1979-02-23 1980-12-12

Country Status (8)

Country Link
US (1) US4307429A (el)
EP (1) EP0014938B1 (el)
JP (1) JPS55117416A (el)
AT (1) ATE1516T1 (el)
DE (2) DE2907171A1 (el)
DK (1) DK68780A (el)
ES (1) ES488870A1 (el)
GR (1) GR73622B (el)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3108906A1 (de) * 1981-03-09 1982-09-16 Siemens AG, 1000 Berlin und 8000 München "verfahren zur ueberwachung von leiterstroemen und anordnung zur durchfuehrung des verfahrens"
US4754218A (en) * 1985-02-21 1988-06-28 Soft Wire Ltd. Current sensing apparatus
DE3835710A1 (de) * 1988-10-20 1990-05-03 Asea Brown Boveri Messverfahren und schaltungsanordnung zur ueberpruefung von schutzmassnahmen in wechselspannungsnetzen
DE3835677C2 (de) * 1988-10-20 1997-07-17 Metrawatt Gmbh Gossen Meßverfahren und Schaltungsanordnung zur Ermittlung des Auslösestroms von FI-Schaltern
DE102004024100A1 (de) * 2004-05-14 2005-12-15 Siemens Ag Prüfeinrichtung für einen Fehlerstromschutzschalter
FR3050081B1 (fr) * 2016-04-12 2018-03-23 Schneider Electric Industries Sas Dispositif de detection d'un courant de defaut
EP3460934B1 (en) * 2016-05-17 2021-12-22 Mitsubishi Electric Corporation Earth leakage circuit breaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3614533A (en) * 1970-05-20 1971-10-19 Rucker Co Ground fault detector and circuit interrupter by magnetic flux storage method
US3699442A (en) * 1971-05-25 1972-10-17 Westinghouse Electric Corp Bi-directional signal detector with input/output isolation
US3772569A (en) * 1972-09-05 1973-11-13 Rucker Co Ground fault protective system
US4001646A (en) * 1975-06-16 1977-01-04 General Electric Company Ground fault circuit interrupter utilizing a single transformer
DE2602534A1 (de) * 1976-01-23 1977-07-28 Siemens Ag Fehlerstrom-schutzschalter
US4159499A (en) * 1977-06-20 1979-06-26 Bereskin Alexander B Ground fault detection and protection circuit

Also Published As

Publication number Publication date
ATE1516T1 (de) 1982-09-15
EP0014938B1 (de) 1982-09-01
US4307429A (en) 1981-12-22
ES488870A1 (es) 1980-09-16
JPS55117416A (en) 1980-09-09
DE2907171A1 (de) 1980-09-04
DE3060788D1 (en) 1982-10-28
DK68780A (da) 1980-08-24
EP0014938A1 (de) 1980-09-03

Similar Documents

Publication Publication Date Title
ATE4760T1 (de) Vorrichtung zur uebertragung von informationen ueber eine wechselstromleitung.
GB911671A (en) Method of and apparatus for the production of elongated pulse combination sequences of very long period for enciphering machines
CH640386GA3 (el)
GR73622B (el)
JPS57199968A (en) Method and device for measuring magnetic field
GB2082806B (en) A method of reducing the power consumption of the stepping motor of an electronic timepiece
JPS54128719A (en) Vertical magnetization recorder
JPS57111442A (en) Measuring apparatus of residual stress
SU847238A1 (ru) Устройство дл измерени парамет-POB МАгНиТНыХ СЕРдЕчНиКОВ
JPS55127874A (en) Neutral point adjusting method for motor
FR2328202A1 (fr) Procede et dispositif pour la detection d'une premagnetisation
JPS5672368A (en) Magnetic sensor
JPS56114307A (en) Magnetic circuit
SU550604A1 (ru) Устройство дл контрол посто нных магнитов
SU1247800A1 (ru) Устройство дл измерени напр женности магнитного пол
JPS5745912A (en) Differential transformer
FR2251811A1 (en) Contactless induction pickup - detects boundary between two media having different densities and conductivities
SU799026A2 (ru) Устройство дл намагничивани посто н-НыХ МАгНиТОВ КОльцЕВОй или СпиРАльНОйфОРМы
JPS5556606A (en) Magnetizing device
JPS57108974A (en) Printer
SU1280553A1 (ru) Способ контрол магнитных свойств посто нных магнитов
SU1019306A1 (ru) Вихретоковый преобразователь
JPS55136963A (en) Surge current detector
JPS5578514A (en) Zero-phase current transformer using hole element
SU1226260A1 (ru) Устройство дл измерени коэрцитивной силы листовых ферромагнитных материалов