GB472312A - Improvements in or relating to electric protective arrangements - Google Patents

Improvements in or relating to electric protective arrangements

Info

Publication number
GB472312A
GB472312A GB378936A GB378936A GB472312A GB 472312 A GB472312 A GB 472312A GB 378936 A GB378936 A GB 378936A GB 378936 A GB378936 A GB 378936A GB 472312 A GB472312 A GB 472312A
Authority
GB
United Kingdom
Prior art keywords
circuit
gap
fuse
transformer
installation
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
GB378936A
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.)
EDWARD ALBERT FOWLER
LOUIS HYMAN
Original Assignee
EDWARD ALBERT FOWLER
LOUIS HYMAN
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 EDWARD ALBERT FOWLER, LOUIS HYMAN filed Critical EDWARD ALBERT FOWLER
Priority to GB378936A priority Critical patent/GB472312A/en
Publication of GB472312A publication Critical patent/GB472312A/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
    • H02H3/20—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 voltage
    • H02H3/205—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 voltage using a spark-gap as detector

Landscapes

  • Fuses (AREA)

Abstract

472,312. Protective cut-out arrangements. FOWLER, E. A.. HYMAN, L., and OUGHTON, W. E. Feb. 4, 1937, No. 3789/36. [Class 38 (v)] An installation comprising an H.T. circuit fed from an L.T. circuit through a transformer, which may be of the leaky-field type or plain double-wound type, is protected against excess H.T. volts by means of a spark-gap 6 connected across the H.T. circuit 1, and a fuse 5 in the gap adapted when the gap breaks down, to melt and release a spring-actuated member 7 carrying a contact 4 normally bridging contacts in the L.T. circuit 2. When released, the rod 7 slides in a guide 10 under spring- action 12 to open the L.T. circuit and hence de-energize the H.T. circuit, which may supply an electron discharge tube (neon-sign) installation and contain overload fuses. The member 8 to which the other end of the fuse 5 is pinned may be earthed, and may either be fixed or adjustable in a guide 13 by means of a cam 14 rotatable in member 8. Where each of a number of tubes has its own transformer, a fault in one H.T. circuit may interrupt all or some of the L.T. circuits.
GB378936A 1937-02-04 1937-02-04 Improvements in or relating to electric protective arrangements Expired GB472312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB378936A GB472312A (en) 1937-02-04 1937-02-04 Improvements in or relating to electric protective arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB378936A GB472312A (en) 1937-02-04 1937-02-04 Improvements in or relating to electric protective arrangements

Publications (1)

Publication Number Publication Date
GB472312A true GB472312A (en) 1937-09-22

Family

ID=9764937

Family Applications (1)

Application Number Title Priority Date Filing Date
GB378936A Expired GB472312A (en) 1937-02-04 1937-02-04 Improvements in or relating to electric protective arrangements

Country Status (1)

Country Link
GB (1) GB472312A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538367A (en) * 1946-12-31 1951-01-16 Kott Hermann Safety fuse for high-voltage transformers
US2542367A (en) * 1945-11-13 1951-02-20 Richard H Seaman Protective device for transformers
US3281625A (en) * 1964-08-31 1966-10-25 Alfred J Roach Over-voltage protection techniques

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542367A (en) * 1945-11-13 1951-02-20 Richard H Seaman Protective device for transformers
US2538367A (en) * 1946-12-31 1951-01-16 Kott Hermann Safety fuse for high-voltage transformers
US3281625A (en) * 1964-08-31 1966-10-25 Alfred J Roach Over-voltage protection techniques

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