GB1334403A - Input circuit for three-phase over-current relays - Google Patents

Input circuit for three-phase over-current relays

Info

Publication number
GB1334403A
GB1334403A GB2402571A GB2402571A GB1334403A GB 1334403 A GB1334403 A GB 1334403A GB 2402571 A GB2402571 A GB 2402571A GB 2402571 A GB2402571 A GB 2402571A GB 1334403 A GB1334403 A GB 1334403A
Authority
GB
United Kingdom
Prior art keywords
resistor
input circuit
phase
inductance
direct current
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
GB2402571A
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.)
ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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 ASEA AB, Allmanna Svenska Elektriska AB filed Critical ASEA AB
Publication of GB1334403A publication Critical patent/GB1334403A/en
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
    • H02H3/08—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 excess current
    • H02H3/083—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 excess current for three-phase systems

Landscapes

  • Emergency Protection Circuit Devices (AREA)
GB2402571A 1970-03-16 1971-04-19 Input circuit for three-phase over-current relays Expired GB1334403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE341670A SE351087B (enrdf_load_stackoverflow) 1970-03-16 1970-03-16

Publications (1)

Publication Number Publication Date
GB1334403A true GB1334403A (en) 1973-10-17

Family

ID=20262081

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2402571A Expired GB1334403A (en) 1970-03-16 1971-04-19 Input circuit for three-phase over-current relays

Country Status (4)

Country Link
CH (1) CH520427A (enrdf_load_stackoverflow)
DE (1) DE2110505B2 (enrdf_load_stackoverflow)
GB (1) GB1334403A (enrdf_load_stackoverflow)
SE (1) SE351087B (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2841856C3 (de) * 1978-09-26 1983-02-24 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Erfassung des Stromistwertes von Stromrichtern in Drehstrombrückenschaltung
DE4016075A1 (de) * 1990-05-18 1991-11-28 Kloeckner Moeller Gmbh Schaltung zur erfassung der phasenstroeme in mehrphasigen netzsystemen

Also Published As

Publication number Publication date
DE2110505A1 (de) 1971-09-30
DE2110505C3 (enrdf_load_stackoverflow) 1973-10-11
SE351087B (enrdf_load_stackoverflow) 1972-11-13
CH520427A (de) 1972-03-15
DE2110505B2 (de) 1973-03-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee
PCNP Patent ceased through non-payment of renewal fee