GB315679A - Improvements in and relating to electric relay devices - Google Patents

Improvements in and relating to electric relay devices

Info

Publication number
GB315679A
GB315679A GB1085428A GB1085428A GB315679A GB 315679 A GB315679 A GB 315679A GB 1085428 A GB1085428 A GB 1085428A GB 1085428 A GB1085428 A GB 1085428A GB 315679 A GB315679 A GB 315679A
Authority
GB
United Kingdom
Prior art keywords
relating
relay devices
electric relay
electric
devices
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
GB1085428A
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.)
Ferranti International PLC
Original Assignee
Ferranti PLC
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 Ferranti PLC filed Critical Ferranti PLC
Priority to GB1085428A priority Critical patent/GB315679A/en
Publication of GB315679A publication Critical patent/GB315679A/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
    • H02H3/08—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 excess current
    • H02H3/081—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 excess current and depending on the direction
    • 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
    • H02H3/38—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 both voltage and current; responsive to phase angle between voltage and current
GB1085428A 1928-04-12 1928-04-12 Improvements in and relating to electric relay devices Expired GB315679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1085428A GB315679A (en) 1928-04-12 1928-04-12 Improvements in and relating to electric relay devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1085428A GB315679A (en) 1928-04-12 1928-04-12 Improvements in and relating to electric relay devices

Publications (1)

Publication Number Publication Date
GB315679A true GB315679A (en) 1929-07-12

Family

ID=9975535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1085428A Expired GB315679A (en) 1928-04-12 1928-04-12 Improvements in and relating to electric relay devices

Country Status (1)

Country Link
GB (1) GB315679A (en)

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