DK310277A - Strommalesystem - Google Patents

Strommalesystem

Info

Publication number: DK310277A
Authority: DK; Denmark
Prior art keywords: strommales; strommales system
Prior art date: 1976-07-13

Application number

DK310277A

Other languages

English (en)

Other versions

DK147215B (da

DK147215C (da

Inventor

M Groenenboom

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.)

1976-07-13

Filing date

1977-07-08

Publication date

1978-01-14

1976-07-13 Priority claimed from NL7607752A external-priority patent/NL185241C/xx

1977-06-08 Priority claimed from NL7706317A external-priority patent/NL190969C/xx

1977-06-08 Priority claimed from NL7706316A external-priority patent/NL7706316A/xx

1977-07-08 Application filed by Hazemeijer Bv filed Critical Hazemeijer Bv

1978-01-14 Publication of DK310277A publication Critical patent/DK310277A/da

1984-05-14 Publication of DK147215B publication Critical patent/DK147215B/da

1984-10-29 Application granted granted Critical

1984-10-29 Publication of DK147215C publication Critical patent/DK147215C/da

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)
Emergency Protection Circuit Devices (AREA)
Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)

DK310277A 1976-07-13 1977-07-08 Stroemmaaleapparat DK147215C (da)

Applications Claiming Priority (6)

Application Number	Priority Date	Filing Date	Title
NL7607752		1976-07-13
NL7607752A NL185241C (nl)	1976-07-13	1976-07-13	Stroommeetsysteem.
NL7706316		1977-06-08
NL7706317		1977-06-08
NL7706317A NL190969C (nl)	1976-07-13	1977-06-08	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

Publications (3)

Publication Number	Publication Date
DK310277A true DK310277A (da)	1978-01-14
DK147215B DK147215B (da)	1984-05-14
DK147215C DK147215C (da)	1984-10-29

Family

ID=27352015

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK310277A DK147215C (da)	1976-07-13	1977-07-08	Stroemmaaleapparat

Country Status (13)

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

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 (da) *	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

1977
- 1977-06-23 BE BE1008220A patent/BE856056A/xx not_active IP Right Cessation
- 1977-06-29 GB GB27220/77A patent/GB1582035A/en not_active Expired
- 1977-06-30 SE SE7707606A patent/SE421352B/xx not_active IP Right Cessation
- 1977-07-06 AT AT0482877A patent/AT364018B/de not_active IP Right Cessation
- 1977-07-08 CH CH844277A patent/CH628441A5/de not_active IP Right Cessation
- 1977-07-08 DK DK310277A patent/DK147215C/da not_active IP Right Cessation
- 1977-07-08 DE DE2730874A patent/DE2730874C2/de not_active Expired
- 1977-07-12 IT IT25654/77A patent/IT1077324B/it active
- 1977-07-12 ES ES460665A patent/ES460665A1/es not_active Expired
- 1977-07-12 NO NO772476A patent/NO148046C/no unknown
- 1977-07-13 FR FR7721755A patent/FR2361663A1/fr active Granted
- 1977-07-13 JP JP52084021A patent/JPS5945106B2/ja not_active Expired
1979
- 1979-02-22 US US06/014,089 patent/US4293813A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
AT364018B (de)	1981-09-25
JPS5945106B2 (ja)	1984-11-02
SE7707606L (sv)	1978-01-14
GB1582035A (en)	1980-12-31
NO148046C (no)	1983-08-03
NO148046B (no)	1983-04-18
IT1077324B (it)	1985-05-04
FR2361663B1 (da)	1983-06-17
DE2730874A1 (de)	1978-02-02
FR2361663A1 (fr)	1978-03-10
DK147215B (da)	1984-05-14
DK147215C (da)	1984-10-29
ATA482877A (de)	1981-02-15
DE2730874C2 (de)	1983-05-05
CH628441A5 (de)	1982-02-26
BE856056A (nl)	1977-12-23
US4293813A (en)	1981-10-06
SE421352B (sv)	1981-12-14
JPS5331176A (en)	1978-03-24
ES460665A1 (es)	1978-11-16
NO772476L (no)	1978-01-16

Publication	Publication Date	Title
SE428583B (sv)	1983-07-11	Dubbelkylsystem
SE7713247L (sv)	1978-06-07	Multipunktavfragningssystem
AT344629B (de)	1978-08-10	Siebfeld
ATA204777A (de)	1983-06-15	Schischu
AT353866B (de)	1979-12-10	Hoergeraet
AT349288B (de)	1979-03-26	Ruehrwerksmuehle
AT359262B (de)	1980-10-27	Raffstore
ATA505377A (de)	1979-09-15	Ruehrwerksmuehle
DK310277A (da)	1978-01-14	Strommalesystem
TR20315A (tr)	1981-01-22	Kuecueltuelebilen semsiye
FI762393A (fi)	1978-02-21	System foer stabilisering av massasuspensionstroemmen i en hydraulisk inloppslaoda i en pappersmaskin
SE7713709L (sv)	1978-07-01	Anordni
AT370310B (de)	1983-03-25	Elektrokardioskop
AR211563A1 (es)	1978-01-30	Electrolizador
AT378100B (de)	1985-06-10	Halmerntegeraet
AT346259B (de)	1978-11-10	Webschaft
AT349360B (de)	1979-04-10	Unmagnetische tretmine
AT346734B (de)	1978-11-27	Springmine
AT356609B (de)	1980-05-12	Kristallisator
AT358854B (de)	1980-10-10	Kruemelwalze
SE7609646L (sv)	1978-03-02	Flerapparatsystem
AT356871B (de)	1980-05-27	Saegegatter
AT346041B (de)	1978-10-25	Sheddach
BE855482A (fr)	1977-10-03	Hydrazinopyridazines
AT345469B (de)	1978-09-25	Deodorantien

Legal Events

Date	Code	Title	Description
1997-08-11	PUP	Patent expired