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GB1498045A - Electrical protection circuit - Google Patents

Electrical protection circuit

Info

Publication number
GB1498045A
GB1498045A GB5606774A GB5606774A GB1498045A GB 1498045 A GB1498045 A GB 1498045A GB 5606774 A GB5606774 A GB 5606774A GB 5606774 A GB5606774 A GB 5606774A GB 1498045 A GB1498045 A GB 1498045A
Authority
GB
United Kingdom
Prior art keywords
earth
triac
lead
protection circuit
scr
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
GB5606774A
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.)
HANSEL Pty Ltd
Original Assignee
HANSEL Pty 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 HANSEL Pty Ltd filed Critical HANSEL Pty Ltd
Publication of GB1498045A publication Critical patent/GB1498045A/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
    • H02H3/14—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 occurrence of voltage on parts normally at earth potential

Landscapes

  • Emergency Protection Circuit Devices (AREA)

Abstract

1498045 Earth leakage protection circuits HANSEL PTY Ltd 30 Dec 1974 [3 Jan 1974] 56067/74 Heading H2K Occurrence of earth leakage to the frame 41 of an appliance triggers an SCR or triac 40 into conduction so as to short the live supply conductor A to neutral N or earth E and thereby blow a fuse F. The control electrode of the SCR/triac 40 is connected to the frame via a diode or resistor 42, and a diode 43 may also be included in the earth lead. A triac triggered by the earth lead potential may be included in the neutral lead.
GB5606774A 1974-01-03 1974-12-30 Electrical protection circuit Expired GB1498045A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU615274 1974-01-03

Publications (1)

Publication Number Publication Date
GB1498045A true GB1498045A (en) 1978-01-18

Family

ID=3696660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5606774A Expired GB1498045A (en) 1974-01-03 1974-12-30 Electrical protection circuit

Country Status (2)

Country Link
AU (1) AU7680374A (en)
GB (1) GB1498045A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445641A1 (en) * 1978-12-30 1980-07-25 Przed Projektowania ELECTRONIC ELECTRIC SHOCK PROTECTION SYSTEM
EP0018867A2 (en) * 1979-04-09 1980-11-12 Osmond, Max Roger Victor Protected electric power supply comprising a thyristor
GB2152775A (en) * 1983-11-28 1985-08-07 B & R Electrical Prod Ltd Reversed conductors auto-tripping system
DE3903025A1 (en) * 1989-02-02 1990-08-09 Asea Brown Boveri Method for protecting individuals

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445641A1 (en) * 1978-12-30 1980-07-25 Przed Projektowania ELECTRONIC ELECTRIC SHOCK PROTECTION SYSTEM
EP0018867A2 (en) * 1979-04-09 1980-11-12 Osmond, Max Roger Victor Protected electric power supply comprising a thyristor
EP0018867A3 (en) * 1979-04-09 1980-11-26 Osmond, Max Roger Victor Protected electric power supply comprising a thyristor
GB2152775A (en) * 1983-11-28 1985-08-07 B & R Electrical Prod Ltd Reversed conductors auto-tripping system
DE3903025A1 (en) * 1989-02-02 1990-08-09 Asea Brown Boveri Method for protecting individuals

Also Published As

Publication number Publication date
AU7680374A (en) 1976-06-24

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Legal Events

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