GB2102212B - Magnetic core strctures, devices incorporating them, and magnetic biassing methods - Google Patents

Magnetic core strctures, devices incorporating them, and magnetic biassing methods

Info

Publication number
GB2102212B
GB2102212B GB08220690A GB8220690A GB2102212B GB 2102212 B GB2102212 B GB 2102212B GB 08220690 A GB08220690 A GB 08220690A GB 8220690 A GB8220690 A GB 8220690A GB 2102212 B GB2102212 B GB 2102212B
Authority
GB
United Kingdom
Prior art keywords
magnetic
strctures
methods
biassing
devices incorporating
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
GB08220690A
Other versions
GB2102212A (en
Inventor
Rodney Victor Major
Kenneth John Cruickshank
Tadeusz Marian Jasko
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.)
Telcon Metals Ltd
Original Assignee
Telcon Metals 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 Telcon Metals Ltd filed Critical Telcon Metals Ltd
Priority to GB08220690A priority Critical patent/GB2102212B/en
Publication of GB2102212A publication Critical patent/GB2102212A/en
Application granted granted Critical
Publication of GB2102212B publication Critical patent/GB2102212B/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
    • H02H3/33—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 using summation current transformers
    • H02H3/332—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 using summation current transformers with means responsive to dc component in the fault current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/25—Magnetic cores made from strips or ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Transformers For Measuring Instruments (AREA)
GB08220690A 1981-07-20 1982-07-16 Magnetic core strctures, devices incorporating them, and magnetic biassing methods Expired GB2102212B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08220690A GB2102212B (en) 1981-07-20 1982-07-16 Magnetic core strctures, devices incorporating them, and magnetic biassing methods

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8122315 1981-07-20
GB08220690A GB2102212B (en) 1981-07-20 1982-07-16 Magnetic core strctures, devices incorporating them, and magnetic biassing methods

Publications (2)

Publication Number Publication Date
GB2102212A GB2102212A (en) 1983-01-26
GB2102212B true GB2102212B (en) 1984-11-21

Family

ID=26280184

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08220690A Expired GB2102212B (en) 1981-07-20 1982-07-16 Magnetic core strctures, devices incorporating them, and magnetic biassing methods

Country Status (1)

Country Link
GB (1) GB2102212B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3884491T2 (en) * 1987-07-14 1994-02-17 Hitachi Metals Ltd Magnetic core and manufacturing method.
ES2098821T3 (en) * 1993-06-25 1997-05-01 Siemens Ag INSTALLATION OF FAULT CURRENT DETECTION WITH HIGH SENSITIVITY.

Also Published As

Publication number Publication date
GB2102212A (en) 1983-01-26

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Legal Events

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