FR799279A - Safety device for interlocking power line protection relays in unstable conditions - Google Patents

Safety device for interlocking power line protection relays in unstable conditions

Info

Publication number
FR799279A
FR799279A FR799279DA FR799279A FR 799279 A FR799279 A FR 799279A FR 799279D A FR799279D A FR 799279DA FR 799279 A FR799279 A FR 799279A
Authority
FR
France
Prior art keywords
power line
safety device
line protection
protection relays
unstable conditions
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)
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 FR799279A publication Critical patent/FR799279A/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
    • H02H3/40—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
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/04—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes
    • H03G9/06—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having discharge tubes for gain control and tone control

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)
FR799279D 1935-12-13 1935-12-13 Safety device for interlocking power line protection relays in unstable conditions Expired FR799279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR799279T 1935-12-13

Publications (1)

Publication Number Publication Date
FR799279A true FR799279A (en) 1936-06-10

Family

ID=9236694

Family Applications (1)

Application Number Title Priority Date Filing Date
FR799279D Expired FR799279A (en) 1935-12-13 1935-12-13 Safety device for interlocking power line protection relays in unstable conditions

Country Status (4)

Country Link
BE (1) BE418906A (en)
FR (1) FR799279A (en)
GB (1) GB484421A (en)
NL (1) NL45525C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331902A1 (en) * 1975-11-14 1977-06-10 Gen Electric Co Ltd PROTECTION CIRCUIT FOR ENERGY TRANSMISSION LINES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331902A1 (en) * 1975-11-14 1977-06-10 Gen Electric Co Ltd PROTECTION CIRCUIT FOR ENERGY TRANSMISSION LINES

Also Published As

Publication number Publication date
BE418906A (en)
NL45525C (en)
GB484421A (en) 1938-05-05

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