GB1164826A - Protective Systems for Electric Lines - Google Patents

Protective Systems for Electric Lines

Info

Publication number
GB1164826A
GB1164826A GB4479066A GB4479066A GB1164826A GB 1164826 A GB1164826 A GB 1164826A GB 4479066 A GB4479066 A GB 4479066A GB 4479066 A GB4479066 A GB 4479066A GB 1164826 A GB1164826 A GB 1164826A
Authority
GB
United Kingdom
Prior art keywords
resistor
ctn
lamp
efficient
lit
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
GB4479066A
Inventor
Louis Montaigu
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1164826A publication Critical patent/GB1164826A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/24—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil having light-sensitive input
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
    • H01C7/04—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material having negative temperature coefficient
    • 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
    • H02H3/085—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 making use of a thermal sensor, e.g. thermistor, heated by the excess current

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Control Of Resistance Heating (AREA)
  • Thermally Actuated Switches (AREA)

Abstract

1,164,826. Photo-electric relays. L. MONTAIGU. Oct. 6, 1966 [Oct. 8, 1965], No. 44790/66. Heading G1A. [Also in Division H2] An overload protective arrangement comprises a heating resistor R in the protected circuit, a high temperature co-efficient resistor CTN heated by the resistor R and connected in series with a linear resistor R1, a discharge lamp L and a device X responsive to the operation of the lamp to control the energization of a coil RP. As shown, the resistor CTN has a negative temperature co-efficient and the lamp L is connected across the resistor R1 so as to be lit when the resistor CTN is sufficiently heated by the resistor R when an excess current condition arises. The device X may be a photo-resistor, the resistance of which falls when the lamp L is lit so that the coil RP is sufficiently energized to effect the release of the contacts RP1, RP2. If the resistor CTN has a positive temperature co-efficient, the lamp L is connected across the resistor CTN, Fig. 3 (not shown).
GB4479066A 1965-10-08 1966-10-06 Protective Systems for Electric Lines Expired GB1164826A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR34174A FR1506270A (en) 1965-10-08 1965-10-08 Circuit breaker comprising a relay controlling the opening of the controlled circuit

Publications (1)

Publication Number Publication Date
GB1164826A true GB1164826A (en) 1969-09-24

Family

ID=8589979

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4479066A Expired GB1164826A (en) 1965-10-08 1966-10-06 Protective Systems for Electric Lines

Country Status (3)

Country Link
DE (1) DE1563572A1 (en)
FR (1) FR1506270A (en)
GB (1) GB1164826A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4450496A (en) * 1979-08-16 1984-05-22 Raychem Corporation Protection of certain electrical systems by use of PTC device
GB2135508A (en) * 1979-08-16 1984-08-30 Raychem Corp Indirectly-heated PTC devices

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032632A1 (en) * 1969-07-15 1971-02-04 RCA Corp , New York, N Y (V St A ) Overload protection circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4450496A (en) * 1979-08-16 1984-05-22 Raychem Corporation Protection of certain electrical systems by use of PTC device
GB2135508A (en) * 1979-08-16 1984-08-30 Raychem Corp Indirectly-heated PTC devices

Also Published As

Publication number Publication date
FR1506270A (en) 1967-12-22
DE1563572A1 (en) 1970-03-26

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees