GB877698A - Improvements in and relating to electrical distance protective apparatus - Google Patents

Improvements in and relating to electrical distance protective apparatus

Info

Publication number
GB877698A
GB877698A GB5591/59A GB559159A GB877698A GB 877698 A GB877698 A GB 877698A GB 5591/59 A GB5591/59 A GB 5591/59A GB 559159 A GB559159 A GB 559159A GB 877698 A GB877698 A GB 877698A
Authority
GB
United Kingdom
Prior art keywords
voltage
reference voltage
difference
relating
pulses
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
GB5591/59A
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.)
BBC Brown Boveri AG Switzerland
BBC Brown Boveri France SA
Original Assignee
Brown Boveri und Cie AG Switzerland
BBC Brown Boveri France SA
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 Brown Boveri und Cie AG Switzerland, BBC Brown Boveri France SA filed Critical Brown Boveri und Cie AG Switzerland
Publication of GB877698A publication Critical patent/GB877698A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/185—Electrical failure alarms
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac 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
    • H02H3/382—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 involving phase comparison between current and voltage or between values derived from current and voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

877,698. Protective cut-out arrangements. BROWN, BOVERI & CO. Ltd. Feb. 18, 1959 [March 27, 1958], No. 5591/59. Drawings to Specification. Class 38 (5). In a distance protective arrangement, the line voltage is compared with a first reference voltage to produce a difference voltage and either a second reference voltage or the difference voltage is used to derive a rectangular gating waveform whilst the difference voltage or the second reference voltage is converted to pulse form, the gating waveform and pulses being applied to gating means which passes the pulses to cause the tripping of a protective device in dependence on the phase relationship between the second reference and difference voltages. The first reference voltage may be obtained from the line current and a reference impedance equal to the impedance of the protected section and the second reference voltage may be derived from the line voltage.
GB5591/59A 1958-03-27 1959-02-18 Improvements in and relating to electrical distance protective apparatus Expired GB877698A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH877698X 1958-03-27

Publications (1)

Publication Number Publication Date
GB877698A true GB877698A (en) 1961-09-20

Family

ID=4544552

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5591/59A Expired GB877698A (en) 1958-03-27 1959-02-18 Improvements in and relating to electrical distance protective apparatus

Country Status (4)

Country Link
CH (1) CH358150A (en)
DE (1) DE1049964B (en)
FR (1) FR1220201A (en)
GB (1) GB877698A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1190660A (en) * 1957-12-02 1959-10-14 Cfcmug equipment for protection of electric power transmission lines
DE1116785B (en) * 1960-05-31 1961-11-09 Siemens Ag Half-wave selective protection
DE1130051B (en) * 1960-08-09 1962-05-24 Siemens Ag Fast distance protection
DE1148641B (en) * 1961-08-28 1963-05-16 Elektro App Werke Berlin Trept Circuit arrangement for the selective detection of transient earth faults
DE1265275B (en) * 1962-09-07 1968-04-04 Siemens Ag Frequency relay
DE1299355B (en) * 1964-03-20 1969-07-17 Siemens Ag Method and arrangement for detecting faults in electrical networks
DE1293312B (en) * 1964-12-09 1969-04-24 Siemens Ag Multipole direction relay
DE1280971B (en) * 1965-01-07 1968-10-24 Horst Bender Protection device for electrical networks or systems
DE1292726B (en) * 1965-08-30 1969-04-17 Licentia Gmbh Multi-stage electronic distance relay
CH619570A5 (en) * 1977-09-30 1980-09-30 Bbc Brown Boveri & Cie

Also Published As

Publication number Publication date
FR1220201A (en) 1960-05-23
DE1049964B (en) 1959-02-05
CH358150A (en) 1961-11-15

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