ES544033A0 - DEVICE TO CONTROL THE STATE OF ELECTRICAL CONTACTS - Google Patents

DEVICE TO CONTROL THE STATE OF ELECTRICAL CONTACTS

Info

Publication number
ES544033A0
ES544033A0 ES544033A ES544033A ES544033A0 ES 544033 A0 ES544033 A0 ES 544033A0 ES 544033 A ES544033 A ES 544033A ES 544033 A ES544033 A ES 544033A ES 544033 A0 ES544033 A0 ES 544033A0
Authority
ES
Spain
Prior art keywords
photovoltaïc
generator
contact
state
control
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.)
Granted
Application number
ES544033A
Other languages
Spanish (es)
Other versions
ES8608223A1 (en
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.)
Airbus Group SAS
Original Assignee
Airbus Group SAS
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 Airbus Group SAS filed Critical Airbus Group SAS
Publication of ES8608223A1 publication Critical patent/ES8608223A1/en
Publication of ES544033A0 publication Critical patent/ES544033A0/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • H01H9/167—Circuits for remote indication

Landscapes

  • Liquid Crystal (AREA)
  • Relay Circuits (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Push-Button Switches (AREA)
  • Contacts (AREA)
  • Selective Calling Equipment (AREA)
  • Photovoltaic Devices (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

1. Device for monitoring the open or closed state of at least one electric contact (1) comprising a movable portion (1a) and a fixed portion (1b), by the passage of an electric current between said movable and fixed portions of said contact, characterized in that it comprises a light source (7, 9), a photovoltaïc generator (2) excitable by said light source a liquid crystal system (3) mounted in series with said at least one contact (1) at the terminals of asid photovoltaïc generator (2) and having two different optical states according to whether it is traversed by the current generated by said photovoltaïc generator or not, and means (4, 5, 9 to 13, 19, 20) for detecting and exploiting the states of said liquid crystal system (3).
ES544033A 1984-05-23 1985-05-21 Condition control arrangement of electric contacts. Expired ES8608223A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8408057A FR2565027B1 (en) 1984-05-23 1984-05-23 DEVICE FOR CONTROLLING THE STATE OF ELECTRICAL CONTACTS

Publications (2)

Publication Number Publication Date
ES8608223A1 ES8608223A1 (en) 1986-06-16
ES544033A0 true ES544033A0 (en) 1986-06-16

Family

ID=9304315

Family Applications (1)

Application Number Title Priority Date Filing Date
ES544033A Expired ES8608223A1 (en) 1984-05-23 1985-05-21 Condition control arrangement of electric contacts.

Country Status (5)

Country Link
EP (1) EP0165131B1 (en)
AT (1) ATE29618T1 (en)
DE (1) DE3560611D1 (en)
ES (1) ES8608223A1 (en)
FR (1) FR2565027B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3601941A1 (en) * 1986-01-23 1987-07-30 Norbert Just Display device for an electromagnetic relay
US4704656A (en) * 1986-10-27 1987-11-03 Leviton Manufacturing Company, Inc. Fiber optic wiring device control system
AT387473B (en) * 1987-06-29 1989-01-25 Sprecher Energie Oesterreich SWITCH POSITION DETECTOR FOR HIGH VOLTAGE SWITCHGEAR

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2442998A1 (en) * 1974-09-07 1976-03-18 Josef Gail Lens for welder's goggles or mask or sunglasses - for automatic inertia-free control of fluctuations in light intensity
US4272725A (en) * 1979-05-03 1981-06-09 Electronics Corporation Of America Interface circuit for use with electronic control devices

Also Published As

Publication number Publication date
ES8608223A1 (en) 1986-06-16
EP0165131A1 (en) 1985-12-18
ATE29618T1 (en) 1987-09-15
DE3560611D1 (en) 1987-10-15
FR2565027A1 (en) 1985-11-29
FR2565027B1 (en) 1986-09-26
EP0165131B1 (en) 1987-09-09

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970203