FR46255E - Improvements to electrical network protection systems - Google Patents

Improvements to electrical network protection systems

Info

Publication number
FR46255E
FR46255E FR46255DA FR46255E FR 46255 E FR46255 E FR 46255E FR 46255D A FR46255D A FR 46255DA FR 46255 E FR46255 E FR 46255E
Authority
FR
France
Prior art keywords
electrical network
protection systems
network protection
systems
electrical
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
Other languages
French (fr)
Inventor
Th M Vogel
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger 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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Application granted granted Critical
Publication of FR46255E publication Critical patent/FR46255E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • 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
    • H02H3/28—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
    • H02H3/30—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel
    • H02H3/305—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 two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel involving current comparison
    • 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
    • H02H3/40—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 ratio of voltage and current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measurement Of Radiation (AREA)
FR46255D 1935-07-08 1935-05-21 Improvements to electrical network protection systems Expired FR46255E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR46372T 1935-07-08

Publications (1)

Publication Number Publication Date
FR46255E true FR46255E (en) 1936-04-08

Family

ID=8682001

Family Applications (3)

Application Number Title Priority Date Filing Date
FR779592D Expired FR779592A (en) 1935-07-08 1934-10-12 Improvements to electrical network protection systems
FR46255D Expired FR46255E (en) 1935-07-08 1935-05-21 Improvements to electrical network protection systems
FR46372D Expired FR46372E (en) 1935-07-08 1935-07-08 Improvements to electrical network protection systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR779592D Expired FR779592A (en) 1935-07-08 1934-10-12 Improvements to electrical network protection systems

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR46372D Expired FR46372E (en) 1935-07-08 1935-07-08 Improvements to electrical network protection systems

Country Status (3)

Country Link
BE (1) BE411654A (en)
FR (3) FR779592A (en)
GB (1) GB453248A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1040622A (en) * 1962-04-07 1966-09-01 Tateiski Denki Kabushikikaisha Relay actuating means
CN104134601B (en) * 2014-07-23 2017-02-08 西安交通大学 Cathode ray tube used for high-voltage quick response measurement and measuring method thereof

Also Published As

Publication number Publication date
FR46372E (en) 1936-06-02
BE411654A (en)
GB453248A (en) 1936-09-08
FR779592A (en) 1935-04-09

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