GB858287A - A protective arrangement for the protection of three-phase electric systems - Google Patents

A protective arrangement for the protection of three-phase electric systems

Info

Publication number
GB858287A
GB858287A GB9548/57A GB954857A GB858287A GB 858287 A GB858287 A GB 858287A GB 9548/57 A GB9548/57 A GB 9548/57A GB 954857 A GB954857 A GB 954857A GB 858287 A GB858287 A GB 858287A
Authority
GB
United Kingdom
Prior art keywords
winding
relay
protection
series
phase electric
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
GB9548/57A
Other languages
English (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.)
KRIZIK PRAHA SMICHOV
Original Assignee
KRIZIK PRAHA SMICHOV
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 KRIZIK PRAHA SMICHOV filed Critical KRIZIK PRAHA SMICHOV
Publication of GB858287A publication Critical patent/GB858287A/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
    • H02H3/26—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
    • H02H3/32—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/34—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system
    • H02H3/343—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 corresponding points in different conductors of a single system, e.g. of currents in go and return conductors of a three-phase system using phase sequence analysers

Landscapes

  • Protection Of Transformers (AREA)
GB9548/57A 1956-04-06 1957-03-22 A protective arrangement for the protection of three-phase electric systems Expired GB858287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS858287X 1956-04-06

Publications (1)

Publication Number Publication Date
GB858287A true GB858287A (en) 1961-01-11

Family

ID=5456229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9548/57A Expired GB858287A (en) 1956-04-06 1957-03-22 A protective arrangement for the protection of three-phase electric systems

Country Status (2)

Country Link
DE (1) DE1048326B (enrdf_load_stackoverflow)
GB (1) GB858287A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3258648A (en) * 1961-03-11 1966-06-28 Apparatus responsive to overload and unbalance in a three phase electrical supply

Also Published As

Publication number Publication date
DE1048326B (enrdf_load_stackoverflow)

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