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GB2014807A - Peak current limiting circuits - Google Patents

Peak current limiting circuits

Info

Publication number
GB2014807A
GB2014807A GB7907827A GB7907827A GB2014807A GB 2014807 A GB2014807 A GB 2014807A GB 7907827 A GB7907827 A GB 7907827A GB 7907827 A GB7907827 A GB 7907827A GB 2014807 A GB2014807 A GB 2014807A
Authority
GB
United Kingdom
Prior art keywords
current
peak current
supply
peak
current limiting
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.)
Granted
Application number
GB7907827A
Other versions
GB2014807B (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.)
Siemens Mobility Ltd
Original Assignee
Westinghouse Brake and Signal Co Ltd
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 Westinghouse Brake and Signal Co Ltd filed Critical Westinghouse Brake and Signal Co Ltd
Priority to GB7907827A priority Critical patent/GB2014807B/en
Publication of GB2014807A publication Critical patent/GB2014807A/en
Application granted granted Critical
Publication of GB2014807B publication Critical patent/GB2014807B/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)
  • Rectifiers (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

The invention is concerned with peak current limiting circuits for use in a.c. supply circuits susceptible to waveform distortion as a result of excessive peak current demand. Such problems may arise where a standby inverter a.c. power supply is used to feed a supply rectifier having large capacitance. In a peak limiting circuit of the invention rectifying means 8, e.g. a bridge rectifier, is inserted in series with the supply and is arranged to feed load current of either polarity unidirectionally through an iron-cored inductor 7. The inductor additionally has a unidirectional free-wheel current path in the same direction as the load current so that the instantaneous value of the free-wheel current imposes a limit on the maximum value of a peak current. Single phase and three phase arrangements are described. <IMAGE>
GB7907827A 1978-02-16 1979-03-06 Peak current limiting circuits Expired GB2014807B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7907827A GB2014807B (en) 1978-02-16 1979-03-06 Peak current limiting circuits

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB611378 1978-02-16
GB7907827A GB2014807B (en) 1978-02-16 1979-03-06 Peak current limiting circuits

Publications (2)

Publication Number Publication Date
GB2014807A true GB2014807A (en) 1979-08-30
GB2014807B GB2014807B (en) 1982-07-21

Family

ID=26240443

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7907827A Expired GB2014807B (en) 1978-02-16 1979-03-06 Peak current limiting circuits

Country Status (1)

Country Link
GB (1) GB2014807B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0592164A1 (en) * 1992-10-06 1994-04-13 Picker International, Inc. Power supplies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0592164A1 (en) * 1992-10-06 1994-04-13 Picker International, Inc. Power supplies
US5347571A (en) * 1992-10-06 1994-09-13 Picker International, Inc. X-ray tube arc suppressor

Also Published As

Publication number Publication date
GB2014807B (en) 1982-07-21

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee