ES460665A1 - Un sistema perfeccionado de medicion de corriente. - Google Patents

Un sistema perfeccionado de medicion de corriente.

Info

Publication number
ES460665A1
ES460665A1 ES460665A ES460665A ES460665A1 ES 460665 A1 ES460665 A1 ES 460665A1 ES 460665 A ES460665 A ES 460665A ES 460665 A ES460665 A ES 460665A ES 460665 A1 ES460665 A1 ES 460665A1
Authority
ES
Spain
Prior art keywords
current measuring
measuring system
earth leakage
particularly suitable
device equipped
Prior art date
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
ES460665A
Other languages
English (en)
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.)
Hazemeijer BV
Original Assignee
Hazemeijer BV
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 claimed from NL7607752A external-priority patent/NL185241C/xx
Priority claimed from NL7706316A external-priority patent/NL7706316A/xx
Priority claimed from NL7706317A external-priority patent/NL190969C/xx
Application filed by Hazemeijer BV filed Critical Hazemeijer BV
Publication of ES460665A1 publication Critical patent/ES460665A1/es
Expired 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
    • H02H3/26—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
    • 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
    • G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

Un sistema perfeccionado de medición de corriente, más particularmente adecuado para uso como sistema de detección de fugas o derivaciones a tierra, que comprende un circuito magnético débil o permeable dotado de uno o más devanados primarios por donde va a pasar una corriente que se va a medir o unas corrientes que se van a detectar en busca de sus valores de suma o diferencia, y dotado de un devanado secundario incluido en un circuito de conexión en serie de una fuente de alimentación de energía eléctrica, un dispositivo conmutador para cambiar la polaridad de la tensión aplicada por la fuente de alimentación al devanado secundario, un dispositivo de detección de corriente para suministrar al dispositivo conmutador una señal de conmutación cuando la corriente que recorre el devanado ha alcanzado un valor límite prefijado,
ES460665A 1976-07-13 1977-07-12 Un sistema perfeccionado de medicion de corriente. Expired ES460665A1 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL7607752A NL185241C (nl) 1976-07-13 1976-07-13 Stroommeetsysteem.
NL7706316A NL7706316A (en) 1976-07-13 1977-06-08 Current measuring system with earthing detector - includes differential amplifier with positive and negative feedback loops and current measuring resistor in negative loop
NL7706317A NL190969C (nl) 1976-07-13 1977-06-08 Stroommeetsysteem.

Publications (1)

Publication Number Publication Date
ES460665A1 true ES460665A1 (es) 1978-11-16

Family

ID=27352015

Family Applications (1)

Application Number Title Priority Date Filing Date
ES460665A Expired ES460665A1 (es) 1976-07-13 1977-07-12 Un sistema perfeccionado de medicion de corriente.

Country Status (13)

Country Link
US (1) US4293813A (es)
JP (1) JPS5945106B2 (es)
AT (1) AT364018B (es)
BE (1) BE856056A (es)
CH (1) CH628441A5 (es)
DE (1) DE2730874C2 (es)
DK (1) DK147215C (es)
ES (1) ES460665A1 (es)
FR (1) FR2361663A1 (es)
GB (1) GB1582035A (es)
IT (1) IT1077324B (es)
NO (1) NO148046C (es)
SE (1) SE421352B (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3007227A1 (de) * 1980-02-27 1981-10-22 Schupa Elektro-GmbH + Co KG, 5885 Schalksmühle Hochempfindlicher, allstromsensitiver fehlerstromschutzschalter
US4371832A (en) * 1980-05-27 1983-02-01 Wilson Gerald L DC Ground fault detector wherein fault is sensed by noting imbalance of magnetic flux in a magnetic core
US4322769A (en) * 1980-12-22 1982-03-30 International Business Machines Corporation Electric switch operation monitoring circuitry
CH660254A5 (de) * 1983-07-20 1987-03-31 Landis & Gyr Ag Stromwandler mit fehlerkompensation.
AT383906B (de) * 1985-04-16 1987-09-10 Cti Ges Zur Pruefung Elektrote Fehlerstromschutzschalter fuer fehlerwechselund fehlergleichstroeme
NL8602145A (nl) * 1986-08-22 1988-03-16 Holec Syst & Componenten Meetschakeling voor continue, nauwkeurige meting van gelijk- en wisselstroom.
JPS63162605U (es) * 1987-04-14 1988-10-24
JP3286431B2 (ja) * 1993-10-12 2002-05-27 住友特殊金属株式会社 直流電流センサー
US6388435B1 (en) * 1998-12-31 2002-05-14 General Electric Company Methods and apparatus for voltage measurement
US6603301B2 (en) * 2001-07-26 2003-08-05 Agilent Technologies, Inc. Multiple range current measurement system with low power dissipation, fast setting time, and low common mode voltage error
DE10208941C1 (de) * 2002-02-28 2003-06-05 Dbt Autom Gmbh Verfahren und Schaltungsanordnung zum Messen von Erdschlüssen in eigensicheren Stromzuführungen
FR2894034B1 (fr) * 2005-11-28 2008-01-18 Renault Sas Mesure deportee du courant traversant une charge
IES20100604A2 (en) 2010-09-21 2011-06-08 Shakira Ltd DC & AC current detection circuit
JP5702592B2 (ja) * 2010-12-14 2015-04-15 富士電機株式会社 電流検知装置
JP2012233718A (ja) * 2011-04-28 2012-11-29 Fuji Electric Fa Components & Systems Co Ltd 電流検出装置
DE102011089606A1 (de) * 2011-12-22 2013-06-27 Ge Energy Power Conversion Gmbh Verfahren zum Betreiben einer elektrischen Schaltung
JP2014130061A (ja) * 2012-12-28 2014-07-10 Fuji Electric Fa Components & Systems Co Ltd 直流電流検知装置
US11372056B2 (en) * 2020-05-26 2022-06-28 Sandisk Technologies Llc Circuit for detecting pin-to-pin leaks of an integrated circuit package

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768011A (en) * 1970-06-09 1973-10-23 W Swain Means for measuring magnitude and direction of a direct current or permanent magnet, including clip-on direct current sensing inductor

Also Published As

Publication number Publication date
JPS5331176A (en) 1978-03-24
AT364018B (de) 1981-09-25
ATA482877A (de) 1981-02-15
DK147215C (da) 1984-10-29
CH628441A5 (de) 1982-02-26
IT1077324B (it) 1985-05-04
DK310277A (da) 1978-01-14
DK147215B (da) 1984-05-14
FR2361663A1 (fr) 1978-03-10
NO772476L (no) 1978-01-16
FR2361663B1 (es) 1983-06-17
SE7707606L (sv) 1978-01-14
JPS5945106B2 (ja) 1984-11-02
DE2730874C2 (de) 1983-05-05
NO148046B (no) 1983-04-18
DE2730874A1 (de) 1978-02-02
NO148046C (no) 1983-08-03
BE856056A (nl) 1977-12-23
GB1582035A (en) 1980-12-31
SE421352B (sv) 1981-12-14
US4293813A (en) 1981-10-06

Similar Documents

Publication Publication Date Title
ES460665A1 (es) Un sistema perfeccionado de medicion de corriente.
JPS5388754A (en) Probe for contact detection
JPS5343875A (en) Vacuum leakage sensor and indicator for vacuum circuit breaker
ZA771734B (en) Position testing device
JPS5418772A (en) Improvements on air current pressure detecting probe
JPS5243467A (en) Current measuring device
JPS52118135A (en) Misspark detecting apparatus
JPS533380A (en) Electrical output signal peak detection device
JPS5286287A (en) Device for detecting fibrins
AU500658B2 (en) Constant current arrangement for loop detection
JPS52150532A (en) Ground fault detection device
JPS5348787A (en) Testing device
JPS52137383A (en) Current measuring device
JPS5317872A (en) Vehicleedecelerating device using eddy current
NL7712650A (nl) Behuizing voor apparaten voor de elektrische communicatie- en meettechniek.
JPS5434043A (en) Degradation detecting system for lighting arrester
NL7707886A (nl) Lijnstroom-detectieinrichting.
JPS5350773A (en) Zeroophase current detection device
JPS5264966A (en) Leak current sensing device
JPS52102553A (en) Alternating current quantity detection device
JPS5286174A (en) Testing device for level switch
JPS5342863A (en) Circuit device for measuring current or voltage
AU510539B2 (en) Earth leakage detection
JPS52145780A (en) Device for detecting shorted current
JPS51117815A (en) Input level indicator circuit

Legal Events

Date Code Title Description
PC1A Transfer granted