GB1107870A - Improvements relating to electrical coupling circuits for fault suppression - Google Patents

Improvements relating to electrical coupling circuits for fault suppression

Info

Publication number
GB1107870A
GB1107870A GB1579365A GB1579365A GB1107870A GB 1107870 A GB1107870 A GB 1107870A GB 1579365 A GB1579365 A GB 1579365A GB 1579365 A GB1579365 A GB 1579365A GB 1107870 A GB1107870 A GB 1107870A
Authority
GB
United Kingdom
Prior art keywords
switches
coil
fault
current
april
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
GB1579365A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1107870A publication Critical patent/GB1107870A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

1,107,870. Coupling circuits for fault current suppression. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. 13 April, 1965 [13 April, 1964], No. 15793/65. Heading H2H. A coupling circuit for two A.C. electrical networks I, II comprises a choke coil X forming the primary winding of a transformer whose secondary winding Y is normally connected to a load D by rectifier switches S1, S2 controlled by a circuit CL responsive to the current flow between the networks. Should this current exceed a predetermined value switches S1, S2 are opened, thereby increasing the reactance of coil X to limit the fault current. After fault clearance switches S1, S2 may be "closed" gradually to limit system disturbance. Members Y, D may be omitted and an anti-parallel combination of switches S1, S2 connected across a major portion of the choke coil X, Fig. 1 (not shown). The choke D may be replaced by or combined with an ohmic resistance. The coil X may comprise several seriesconnected inductances which are inserted progressively under fault conditions. Switches S1, S2 may comprise banks of ignitrons, mercury arc rectifiers or silicon controlled rectifiers.
GB1579365A 1964-04-13 1965-04-13 Improvements relating to electrical coupling circuits for fault suppression Expired GB1107870A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL0047561 1964-04-13

Publications (1)

Publication Number Publication Date
GB1107870A true GB1107870A (en) 1968-03-27

Family

ID=7272087

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1579365A Expired GB1107870A (en) 1964-04-13 1965-04-13 Improvements relating to electrical coupling circuits for fault suppression

Country Status (2)

Country Link
FR (1) FR1429996A (en)
GB (1) GB1107870A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817206A1 (en) * 1978-04-10 1979-10-11 Bbc Brown Boveri & Cie PROCEDURE FOR FAST REDUCTION OF THE SHORT-CIRCUIT CURRENT BETWEEN POWER SUPPLIES
DE3213793A1 (en) * 1982-04-15 1983-11-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for protection against short-circuits in high-power on-board networks
WO2003058789A1 (en) * 2002-01-14 2003-07-17 Vestas Wind Systems A/S Power grid connection system for a wind turbine generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662869B1 (en) * 1990-06-01 1995-06-16 Europ Agence Spatiale METHOD FOR LIMITING AN OVERLOAD BASED ON THE PWM CONTROL TECHNIQUE (OR LC3) AND ELECTRONIC DEVICE FOR IMPLEMENTING THIS PROCESS.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817206A1 (en) * 1978-04-10 1979-10-11 Bbc Brown Boveri & Cie PROCEDURE FOR FAST REDUCTION OF THE SHORT-CIRCUIT CURRENT BETWEEN POWER SUPPLIES
DE3213793A1 (en) * 1982-04-15 1983-11-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for protection against short-circuits in high-power on-board networks
WO2003058789A1 (en) * 2002-01-14 2003-07-17 Vestas Wind Systems A/S Power grid connection system for a wind turbine generator

Also Published As

Publication number Publication date
FR1429996A (en) 1966-02-25

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