GB2012128A - Protecting a plurality of parallel circuits all of which are supplied from an inverter - Google Patents

Protecting a plurality of parallel circuits all of which are supplied from an inverter

Info

Publication number
GB2012128A
GB2012128A GB79838A GB7900838A GB2012128A GB 2012128 A GB2012128 A GB 2012128A GB 79838 A GB79838 A GB 79838A GB 7900838 A GB7900838 A GB 7900838A GB 2012128 A GB2012128 A GB 2012128A
Authority
GB
United Kingdom
Prior art keywords
inverter
parallel circuits
supplied
internal impedance
current
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.)
Withdrawn
Application number
GB79838A
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.)
Silcon Elektronik AS
Original Assignee
Silcon Elektronik AS
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 Silcon Elektronik AS filed Critical Silcon Elektronik AS
Publication of GB2012128A publication Critical patent/GB2012128A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
    • 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
    • H02H3/02—Details
    • H02H3/025—Disconnection after limiting, e.g. when limiting is not sufficient or for facilitating disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/122—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Inverter Devices (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Fuses (AREA)
  • Protection Of Static Devices (AREA)

Abstract

An arrangement is provided for blowing the appropriate fuse 17-20 when one of a plurality of parallel fused circuits 7-10, all of which are supplied from an inverter 2, becomes faulty. The inverter 2 has two outputs, a current- limited working output 3 having a relatively high internal impedance and an auxiliary output 4 having a substantially lower internal impedance. A switch 5 shifts the parallel circuits from the working output 3 of the inverter 2 to its auxiliary output 4 when a short circuit or an earth current, detected by means of a detector means 11, occurs in one of the parallel circuits 7-10 in order to temporarily reduce the internal impedance of the inverter 2. This permits sufficient current to flow to blow the appropriate fuse. <IMAGE>
GB79838A 1978-01-10 1979-01-10 Protecting a plurality of parallel circuits all of which are supplied from an inverter Withdrawn GB2012128A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK10878A DK10878A (en) 1978-01-10 1978-01-10 CIRCULAR FOR SELECTIVE DISCONNECTION FROM A POWER SUPPLY OF A DEFECTIVE AMONG VIA FUSES PARALLEL-CONNECTED CONSUMERS OF ELECTRIC POWER

Publications (1)

Publication Number Publication Date
GB2012128A true GB2012128A (en) 1979-07-18

Family

ID=8089831

Family Applications (1)

Application Number Title Priority Date Filing Date
GB79838A Withdrawn GB2012128A (en) 1978-01-10 1979-01-10 Protecting a plurality of parallel circuits all of which are supplied from an inverter

Country Status (5)

Country Link
DE (1) DE2856322A1 (en)
DK (1) DK10878A (en)
GB (1) GB2012128A (en)
NO (1) NO790051L (en)
SE (1) SE7900061L (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002063738A1 (en) * 2001-02-07 2002-08-15 Daimlerchrysler Ag Device for the disconnection and connection of a load
WO2015165788A1 (en) * 2014-04-28 2015-11-05 Phoenix Contact Gmbh & Co Kg Power supply unit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002063738A1 (en) * 2001-02-07 2002-08-15 Daimlerchrysler Ag Device for the disconnection and connection of a load
WO2015165788A1 (en) * 2014-04-28 2015-11-05 Phoenix Contact Gmbh & Co Kg Power supply unit
CN106256065A (en) * 2014-04-28 2016-12-21 菲尼克斯电气公司 Power supply unit
CN106256065B (en) * 2014-04-28 2019-05-28 菲尼克斯电气公司 Power supply unit
US10425005B2 (en) 2014-04-28 2019-09-24 Phoenix Contact Gmbh & Co. Kg Power supply unit

Also Published As

Publication number Publication date
SE7900061L (en) 1979-07-11
NO790051L (en) 1979-07-11
DK10878A (en) 1979-07-11
DE2856322A1 (en) 1979-07-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)