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
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.)
BBC BROWN BOVERI and CIE
BBC Brown Boveri AG Switzerland
Original Assignee
BBC BROWN BOVERI and CIE
Brown Boveri und Cie AG Switzerland
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 and CIE, Brown Boveri und Cie AG Switzerland filed Critical BBC BROWN BOVERI and CIE
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)
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 (enrdf_load_html_response)
DE (1) DE1049964B (enrdf_load_html_response)
FR (1) FR1220201A (enrdf_load_html_response)
GB (1) GB877698A (enrdf_load_html_response)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1190660A (fr) * 1957-12-02 1959-10-14 Cfcmug équipement pour protection des lignes de transport d'énergie électrique
DE1125530B (de) 1960-05-31 1962-03-15 Siemens Ag Resistanz-Selektivschutz
DE1116785B (de) * 1960-05-31 1961-11-09 Siemens Ag Einhalbwellen-Selektivschutz
DE1130051B (de) * 1960-08-09 1962-05-24 Siemens Ag Schnell-Distanzschutz
DE1148641B (de) * 1961-08-28 1963-05-16 Elektro App Werke Berlin Trept Schaltungsanordnung zur selektiven Erfassung von Erdschlusswischern
DE1265275B (de) * 1962-09-07 1968-04-04 Siemens Ag Frequenzrelais
DE1299355B (de) * 1964-03-20 1969-07-17 Siemens Ag Verfahren und Anordnung zur Erfassung von Fehlern in elektrischen Netzwerken
DE1293312B (de) * 1964-12-09 1969-04-24 Siemens Ag Mehrpoliges Richtungsrelais
DE1280971B (de) * 1965-01-07 1968-10-24 Horst Bender Schutzeinrichtung fuer elektrische Netze oder Anlagen
DE1292726B (de) * 1965-08-30 1969-04-17 Licentia Gmbh Mehrstufiges elektronisches Distanzrelais
CH619570A5 (enrdf_load_html_response) * 1977-09-30 1980-09-30 Bbc Brown Boveri & Cie

Also Published As

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

Similar Documents

Publication Publication Date Title
GB877698A (en) Improvements in and relating to electrical distance protective apparatus
GB871957A (en) Improvements in and relating to electrical protective relay systems
GB1140023A (en) Improvements in and relating to distance protective apparatus
CA718127A (en) Electronic direct current voltage regulator
GB1254788A (en) Improvements in or relating to devices for indicating the condition of a switch
GB1164542A (en) A Distance Relay Having Quadrilateral Characteristics
GB1001541A (en) Three-phase line voltage regulator
GB950183A (en) Improvements in and relating to electrical circuits employing transistor networks
AU255479B2 (en) Improvements in electrical pulse generating equipment
GB804455A (en) Pulse width modulator
CA608590A (en) Voltage regulator and pulse circuit
CA563706A (en) Electric pulsed voltage generator
AU261800B2 (en) Electric generating circuit having an alternator and a voltage-current regulator
CA599906A (en) Waveform compensation in semiconductor signal generators
AU249217B2 (en) Electrical homopolar-type generators and current regulating circuit arrangements incorporating same
CA590716A (en) Multiple tone oscillator system having constant peak output voltage
AU255389B2 (en) Dynamo-electric high voltage generator
AU260625B2 (en) Entitled AN EVALUATING CIRCUIT ARRANGEMENT FOR DIRECT CURRENT IMPULSES
AU6457460A (en) Improvements in waveform generators
AU2267162A (en) Electric generating circuit having an alternator and a voltage-current regulator
CA629389A (en) Voltage and current regulator
CA605029A (en) Circuit arrangement for deriving a sum voltage and a difference voltage from two voltages
AU6485460A (en) Electrical homopolar-type generators and current regulating circuit arrangements incorporating same
CA604843A (en) Electrical pulse generators
CH416735A (de) Schaltungsanordnung zum Erzeugen eines sägezahnförmigen Stromes in einer Spule und einer Gleichspannung an einer veränderlichen Belastungsimpedanz