GB2082407A - Digital relay - Google Patents

Digital relay Download PDF

Info

Publication number
GB2082407A
GB2082407A GB8118137A GB8118137A GB2082407A GB 2082407 A GB2082407 A GB 2082407A GB 8118137 A GB8118137 A GB 8118137A GB 8118137 A GB8118137 A GB 8118137A GB 2082407 A GB2082407 A GB 2082407A
Authority
GB
United Kingdom
Prior art keywords
comparison
circuit
processing
data
condition
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.)
Withdrawn
Application number
GB8118137A
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB2082407A publication Critical patent/GB2082407A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/16—Measuring asymmetry of polyphase networks
    • 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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Protection Circuit Devices (AREA)
GB8118137A 1980-06-13 1981-06-12 Digital relay Withdrawn GB2082407A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8203980A JPS576521A (en) 1980-06-13 1980-06-13 Digital processing relay

Publications (1)

Publication Number Publication Date
GB2082407A true GB2082407A (en) 1982-03-03

Family

ID=13763372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8118137A Withdrawn GB2082407A (en) 1980-06-13 1981-06-12 Digital relay

Country Status (3)

Country Link
JP (1) JPS576521A (enrdf_load_stackoverflow)
FR (1) FR2484725B1 (enrdf_load_stackoverflow)
GB (1) GB2082407A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3226305A1 (de) * 1982-07-14 1984-01-19 Harald Dr. 4405 Nottuln Berlin Verfahren zur kompensation von differentiellen fehlern bei analog-digitalmesssystemen, die nach der methode der sukzessiven approximation arbeiten
EP0173083A1 (en) * 1984-07-31 1986-03-05 Kabushiki Kaisha Toshiba Protective control method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006348A (en) * 1973-10-01 1977-02-01 Tokyo Denryoku Kabushiki Kaisha Apparatus for monitoring two electric quantities by combining three consecutive samples of each quantity
JPS5830554B2 (ja) * 1978-11-13 1983-06-29 東京電力株式会社 送電線故障点探査・送電線保護用の故障点標定方式

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3226305A1 (de) * 1982-07-14 1984-01-19 Harald Dr. 4405 Nottuln Berlin Verfahren zur kompensation von differentiellen fehlern bei analog-digitalmesssystemen, die nach der methode der sukzessiven approximation arbeiten
EP0173083A1 (en) * 1984-07-31 1986-03-05 Kabushiki Kaisha Toshiba Protective control method
AU569955B2 (en) * 1984-07-31 1988-02-25 Toshiba, Kabushiki Kaisha Fault protection in an a.c. electric power system
US4774621A (en) * 1984-07-31 1988-09-27 Kabushiki Kaisha Toshiba Protective control method and apparatus

Also Published As

Publication number Publication date
FR2484725A1 (fr) 1981-12-18
FR2484725B1 (fr) 1985-07-12
JPS576521A (en) 1982-01-13
JPS6361847B2 (enrdf_load_stackoverflow) 1988-11-30

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Legal Events

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