GB326890A - Improvements in or relating to electric protective relays - Google Patents

Improvements in or relating to electric protective relays

Info

Publication number
GB326890A
GB326890A GB38174/28A GB3817428A GB326890A GB 326890 A GB326890 A GB 326890A GB 38174/28 A GB38174/28 A GB 38174/28A GB 3817428 A GB3817428 A GB 3817428A GB 326890 A GB326890 A GB 326890A
Authority
GB
United Kingdom
Prior art keywords
relating
protective relays
electric protective
electric
relays
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
GB38174/28A
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.)
A Reyrolle and Co Ltd
Original Assignee
A Reyrolle and 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 A Reyrolle and Co Ltd filed Critical A Reyrolle and Co Ltd
Priority to GB38174/28A priority Critical patent/GB326890A/en
Priority to US408884A priority patent/US1869222A/en
Publication of GB326890A publication Critical patent/GB326890A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
GB38174/28A 1928-12-27 1928-12-27 Improvements in or relating to electric protective relays Expired GB326890A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB38174/28A GB326890A (en) 1928-12-27 1928-12-27 Improvements in or relating to electric protective relays
US408884A US1869222A (en) 1928-12-27 1929-11-21 Electric protective relay

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB38174/28A GB326890A (en) 1928-12-27 1928-12-27 Improvements in or relating to electric protective relays

Publications (1)

Publication Number Publication Date
GB326890A true GB326890A (en) 1930-03-27

Family

ID=10401725

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38174/28A Expired GB326890A (en) 1928-12-27 1928-12-27 Improvements in or relating to electric protective relays

Country Status (2)

Country Link
US (1) US1869222A (en)
GB (1) GB326890A (en)

Also Published As

Publication number Publication date
US1869222A (en) 1932-07-26

Similar Documents

Publication Publication Date Title
GB320320A (en) Improvements in or relating to electric circuit-breakers
GB306822A (en) Improvements in or relating to electric switches
GB319861A (en) Improvements in or relating to electrical switches
GB330616A (en) Improvements in or relating to electric circuit-breakers
GB319637A (en) Improvements in or relating to electric protective relays
GB306337A (en) Improvements in or relating to electric switchgear
GB326890A (en) Improvements in or relating to electric protective relays
GB316529A (en) Improvements in or relating to electric protective relay arrangements
GB311558A (en) Improvements in or relating to electric relays and contact-makers
GB315926A (en) Improvements in or relating to electric relays
GB319292A (en) Improvements in or relating to electric relays
GB316675A (en) Improvements in or relating to polarised electric relays
GB307611A (en) Improvements in or relating to electric switchgear
GB309064A (en) Improvements in or relating to electric switchgear
GB317466A (en) Improvements in or relating to relay connections for electric protective arrangements
GB315583A (en) Improvements in or relating to electric switches
GB322603A (en) Improvements in or relating to electric switches
GB326768A (en) Improvements in or relating to electric switches
GB318559A (en) Improvements in or relating to electric switches
GB310593A (en) Improvements in or relating to electrical relays
GB330606A (en) Improvements in or relating to electric protective arrangements
GB320969A (en) Improvements in or relating to electric protective systems
GB320968A (en) Improvements in or relating to electric protective systems
GB317497A (en) Improvements in or relating to electric protective systems
GB317498A (en) Improvements in or relating to electric protective systems