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GB599421A - Improvements in or relating to enclosed electric switchgear - Google Patents

Improvements in or relating to enclosed electric switchgear

Info

Publication number
GB599421A
GB599421A GB30740/45A GB3074045A GB599421A GB 599421 A GB599421 A GB 599421A GB 30740/45 A GB30740/45 A GB 30740/45A GB 3074045 A GB3074045 A GB 3074045A GB 599421 A GB599421 A GB 599421A
Authority
GB
United Kingdom
Prior art keywords
screen
lamp
indicating
positions
switchgear
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
GB30740/45A
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.)
Hazemeijer BV
Original Assignee
Hazemeijer BV
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 Hazemeijer BV filed Critical Hazemeijer BV
Publication of GB599421A publication Critical patent/GB599421A/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"
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/023—Light-emitting indicators
    • 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
    • H01H9/02—Bases, casings, or covers
    • H01H2009/0292—Transparent window or opening, e.g. for allowing visual inspection of contact position or contact condition

Landscapes

  • Light Sources And Details Of Projection-Printing Devices (AREA)
  • Window Of Vehicle (AREA)

Abstract

599,421. Switchgear structures. NAAMLOOZE VENNOOTSCHAP FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. Nov. 16, 1945, No. 30740. Convention date, July 9, 1943. [Class 38(v)] In enclosed switchgear the switch-positions are indicated by optically projecting the movable contacts on to an indicating- device, or on to a photo-electric cell which may control the indicating - device. As shown, a ground-glass screen 19, a projection-lamp 15, and a lens 17, are mounted on a plate 14, and the image 21 of the movable-contact 20 is reflected on to the screen. Indicators 23, 24, such as neontubes or L.T. lamps energised through a transformer, may be connected between. condenser-type bushings and earth, so as to indicate whether the contacts are " live. " In Fig. 1 (not shown), the lamp and screen are separate parts. The positions of a number of switches may be projected on to a circuit-diagram.
GB30740/45A 1943-07-09 1945-11-16 Improvements in or relating to enclosed electric switchgear Expired GB599421A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL599421X 1943-07-09

Publications (1)

Publication Number Publication Date
GB599421A true GB599421A (en) 1948-03-11

Family

ID=19787761

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30740/45A Expired GB599421A (en) 1943-07-09 1945-11-16 Improvements in or relating to enclosed electric switchgear

Country Status (1)

Country Link
GB (1) GB599421A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355365A1 (en) * 1976-06-18 1978-01-13 Simplex Appareils Electric switch system in distribution board - has mirror enabling operator to view position of contacts protected behind barrier
FR2396271A1 (en) * 1977-06-30 1979-01-26 Ibm PROBE DEVICE INCLUDING A CONTACT INDICATOR
EP0122595A1 (en) * 1983-04-11 1984-10-24 Mitsubishi Denki Kabushiki Kaisha Gas insulated switch assembly
WO2005122352A1 (en) * 2004-06-09 2005-12-22 Abb Technology Ag Gas-insulated switchgear comprising an inspection glass for optically detecting the switching position of the switching contacts
WO2006037724A1 (en) 2004-10-01 2006-04-13 Siemens Aktiengesellschaft Apparatus for monitoring a state of an electrical switching device
US20120247933A1 (en) * 2011-03-28 2012-10-04 Schneider Electric Infrastructure Limited Switchgear assembly
DE202014104584U1 (en) 2014-09-25 2014-10-17 Abb Technology Ag Gas-insulated switchgear with light-emitting means arranged in the switch room
WO2018106891A1 (en) 2016-12-08 2018-06-14 Cooper Technologies Company Illuminated viewing systems for enclosures
DE102019202363B4 (en) 2019-02-21 2022-10-06 Siemens Aktiengesellschaft Switchgear with an optical control system
DE102019202362B4 (en) 2019-02-21 2022-10-13 Siemens Aktiengesellschaft Switchgear with a modular optical control system

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2355365A1 (en) * 1976-06-18 1978-01-13 Simplex Appareils Electric switch system in distribution board - has mirror enabling operator to view position of contacts protected behind barrier
FR2396271A1 (en) * 1977-06-30 1979-01-26 Ibm PROBE DEVICE INCLUDING A CONTACT INDICATOR
EP0122595A1 (en) * 1983-04-11 1984-10-24 Mitsubishi Denki Kabushiki Kaisha Gas insulated switch assembly
WO2005122352A1 (en) * 2004-06-09 2005-12-22 Abb Technology Ag Gas-insulated switchgear comprising an inspection glass for optically detecting the switching position of the switching contacts
AU2005253220B2 (en) * 2004-06-09 2008-10-23 Abb Technology Ag Gas-Insulated Switchgear Assembly
CN103138199B (en) * 2004-06-09 2018-08-24 Abb瑞士股份有限公司 Gas isolated switchgear
US9343881B2 (en) 2004-06-09 2016-05-17 Abb Technology Ag Gas-insulated switchgear
WO2006037724A1 (en) 2004-10-01 2006-04-13 Siemens Aktiengesellschaft Apparatus for monitoring a state of an electrical switching device
US9148000B2 (en) 2011-03-28 2015-09-29 Schneider Electric Infrastructure Limited Switchgear assembly including a transparent viewing port for visual observation of contacts
EP2506277A3 (en) * 2011-03-28 2014-04-16 Schneider Electric Infrastructure Limited A switchgear assembly
CN102761071B (en) * 2011-03-28 2016-01-13 施耐德电气基础设施有限公司 Switching device assembly
CN102761071A (en) * 2011-03-28 2012-10-31 施耐德电气基础设施有限公司 A switchgear assembly
US20120247933A1 (en) * 2011-03-28 2012-10-04 Schneider Electric Infrastructure Limited Switchgear assembly
DE202014104584U1 (en) 2014-09-25 2014-10-17 Abb Technology Ag Gas-insulated switchgear with light-emitting means arranged in the switch room
WO2018106891A1 (en) 2016-12-08 2018-06-14 Cooper Technologies Company Illuminated viewing systems for enclosures
EP3552467A4 (en) * 2016-12-08 2020-07-29 Eaton Intelligent Power Limited ILLUMINATED VIEWING SYSTEMS FOR HOUSINGS
DE102019202363B4 (en) 2019-02-21 2022-10-06 Siemens Aktiengesellschaft Switchgear with an optical control system
DE102019202362B4 (en) 2019-02-21 2022-10-13 Siemens Aktiengesellschaft Switchgear with a modular optical control system
US11516444B2 (en) 2019-02-21 2022-11-29 Siemens Aktiengesellschaft Switchgear with a modular optical monitoring system
US11605510B2 (en) 2019-02-21 2023-03-14 Siemens Aktiengesellschaft Switchgear with an optical monitoring system

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