NL7810247A - Netbeveiligingsinrichting. - Google Patents

Netbeveiligingsinrichting.

Info

Publication number
NL7810247A
NL7810247A NL7810247A NL7810247A NL7810247A NL 7810247 A NL7810247 A NL 7810247A NL 7810247 A NL7810247 A NL 7810247A NL 7810247 A NL7810247 A NL 7810247A NL 7810247 A NL7810247 A NL 7810247A
Authority
NL
Netherlands
Prior art keywords
security device
net security
net
security
Prior art date
Application number
NL7810247A
Other languages
English (en)
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of NL7810247A publication Critical patent/NL7810247A/nl

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
    • H02H3/353—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 involving comparison of phase voltages
NL7810247A 1973-06-07 1978-10-12 Netbeveiligingsinrichting. NL7810247A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH824973A CH565469A5 (nl) 1973-06-07 1973-06-07

Publications (1)

Publication Number Publication Date
NL7810247A true NL7810247A (nl) 1979-01-31

Family

ID=4337441

Family Applications (2)

Application Number Title Priority Date Filing Date
NL7407529A NL7407529A (nl) 1973-06-07 1974-06-05
NL7810247A NL7810247A (nl) 1973-06-07 1978-10-12 Netbeveiligingsinrichting.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NL7407529A NL7407529A (nl) 1973-06-07 1974-06-05

Country Status (10)

Country Link
US (1) US3958153A (nl)
BE (1) BE815935A (nl)
CH (1) CH565469A5 (nl)
DE (1) DE2333930C3 (nl)
DK (1) DK298974A (nl)
FR (1) FR2232762B1 (nl)
GB (1) GB1468597A (nl)
IT (1) IT1019635B (nl)
NL (2) NL7407529A (nl)
SE (1) SE398182B (nl)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1526412A (en) * 1975-07-22 1978-09-27 Gen Electric Co Ltd Directional relays
GB2231216B (en) * 1989-04-05 1993-04-14 Mitsubishi Electric Corp Zero-phase sequence current detector
SE501934C2 (sv) * 1993-09-30 1995-06-26 Asea Brown Boveri Förfarande och anordning för att identifiera enkla jordfel
US5574346A (en) * 1995-05-15 1996-11-12 Delco Electronics Corporation On and off state fault detection circuit for a multi-phase brushed or brushless DC motor
US6600973B1 (en) * 1999-11-24 2003-07-29 American Supercondutor Corporation Method and apparatus for providing power to a utility network
US7091703B2 (en) * 2004-03-04 2006-08-15 American Superconductor Corporation Dynamic reactive compensation system and method
US8942954B2 (en) * 2010-09-16 2015-01-27 Schweitzer Engineering Laboratories, Inc. Fault location in a non-homogeneous electric power line
CN106461718B (zh) * 2014-07-17 2020-07-10 西门子公司 一种有助于断线检测的方法和装置
CN112526405B (zh) * 2020-12-03 2022-02-15 广东电网有限责任公司电力科学研究院 一种用于电容器切出系统时的故障诊断方法及相关装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE488809C (de) * 1926-08-07 1930-01-09 Georg J Meyer Dr Ing Schutzeinrichtung fuer Drehstromanlagen
FR845442A (fr) * 1938-04-28 1939-08-23 Alsthom Cgee Procédé et dispositions pour l'indication de défauts, avec sélection des phases,dans les réseaux électriques polyphasés
GB641792A (en) * 1946-12-18 1950-08-23 Standard Telephones Cables Ltd Improvements in or relating to electric power supply systems
CA716688A (en) * 1961-05-09 1965-08-24 L. Blackburn John Equipment for protecting electrical systems
US3210606A (en) * 1962-02-09 1965-10-05 Westinghouse Electric Corp Protective relaying systems
FR1416357A (fr) * 1964-03-23 1965-11-05 Comp Generale Electricite Dispositif sélecteur de phase
FR1566425A (nl) * 1968-02-27 1969-05-09
SE330930B (nl) * 1969-05-08 1970-12-07 Asea Ab
US3633072A (en) * 1970-02-24 1972-01-04 Lawrence N Duncan Phase detection circuit

Also Published As

Publication number Publication date
IT1019635B (it) 1977-11-30
SE7407326L (nl) 1974-12-09
DK298974A (nl) 1975-02-03
DE2333930B2 (de) 1981-02-19
CH565469A5 (nl) 1975-08-15
FR2232762B1 (nl) 1978-01-20
SE398182B (sv) 1977-12-05
DE2333930C3 (de) 1981-10-29
FR2232762A1 (nl) 1975-01-03
DE2333930A1 (de) 1974-12-19
US3958153A (en) 1976-05-18
GB1468597A (en) 1977-03-30
BE815935A (fr) 1974-09-30
NL7407529A (nl) 1974-12-10

Similar Documents

Publication Publication Date Title
NL171121C (nl) Anti-conceptie inrichting.
NL7415694A (nl) Halfgeleiderinrichting.
NL7311600A (nl) Ladingsgekoppelde inrichting.
ES221983Y (es) Dispositivo absorbente.
SE408368B (sv) Antikonceptionell, intrauterin anordning
NL7414628A (nl) Vastzetinrichting.
NL7414677A (nl) Halfgeleiderinrichting.
NL7414513A (nl) Alarminrichting.
NL7415531A (nl) Halfgeleiderinrichting.
NL7414319A (nl) Valse-twijn-inrichting.
NL7415030A (nl) Halfgeleiderinrichting.
NO740575L (no) Kamuflasjenett.
NL7507974A (nl) Beveiligingsinrichting.
NL7810247A (nl) Netbeveiligingsinrichting.
CH555195A (de) Zerkleinerungsvorrichtung.
NL7409142A (nl) Alarminrichting.
NL166975C (nl) Lichtemitterend apparaat.
NL171190C (nl) Beveiligingsinrichting.
NL7415073A (nl) Halfgeleiderinrichting.
NL7414377A (nl) Halfgeleiderinrichting.
ES223360Y (es) Red.
NL7415535A (nl) Beveiligingsinrichting.
NL7412866A (nl) Halfgeleiderinrichting.
NL7314466A (nl) Halfgeleiderinrichting.
NL175899C (nl) Strook-opwindinrichting.

Legal Events

Date Code Title Description
BC A request for examination has been filed
BV The patent application has lapsed