GB2268008A - Switching system - Google Patents

Switching system

Info

Publication number
GB2268008A
GB2268008A GB9317405A GB9317405A GB2268008A GB 2268008 A GB2268008 A GB 2268008A GB 9317405 A GB9317405 A GB 9317405A GB 9317405 A GB9317405 A GB 9317405A GB 2268008 A GB2268008 A GB 2268008A
Authority
GB
United Kingdom
Prior art keywords
power supply
appliance
mains power
mains
switching means
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.)
Withdrawn
Application number
GB9317405A
Other versions
GB9317405D0 (en
Inventor
Moray James Campbell
David Stewart Liddell
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
Priority claimed from GB919103757A external-priority patent/GB9103757D0/en
Application filed by Individual filed Critical Individual
Priority to GB9317405A priority Critical patent/GB2268008A/en
Publication of GB9317405D0 publication Critical patent/GB9317405D0/en
Publication of GB2268008A publication Critical patent/GB2268008A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

The present invention relates to an automatic switching system suitable for use with a mains powered circuit supplying an electrical appliance (L1) and having a remote switching means (RS) controlling connection thereof to the mains power supply, to control an emergency power supply (BA). The system comprises an appliance status sensing means (SE) for sensing presence of mains power supply at an appliance end portion of the mains power supply cable to the appliance (L1), the remote switching means (RS) having means for bypassing at least some mains power supply to the appliance end portion of the cable when the appliance (L1) is substantially disconnected from the mains power supply by said remote switching means (RS), for deactivation of the appliance (L1). The system further includes emergency power switching means (SW) connected to said status sensing means (SE) for automatic actuation of the emergency power supply (BA), upon sensing absence of any mains power supply at the appliance end portion of the mains power supply cable.
GB9317405A 1991-02-22 1993-08-20 Switching system Withdrawn GB2268008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9317405A GB2268008A (en) 1991-02-22 1993-08-20 Switching system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB919103757A GB9103757D0 (en) 1991-02-22 1991-02-22 Switching system
PCT/GB1992/000316 WO1992015143A1 (en) 1991-02-22 1992-02-21 Switching system
GB9317405A GB2268008A (en) 1991-02-22 1993-08-20 Switching system

Publications (2)

Publication Number Publication Date
GB9317405D0 GB9317405D0 (en) 1993-10-27
GB2268008A true GB2268008A (en) 1993-12-22

Family

ID=26298480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9317405A Withdrawn GB2268008A (en) 1991-02-22 1993-08-20 Switching system

Country Status (1)

Country Link
GB (1) GB2268008A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303978A (en) * 1995-07-31 1997-03-05 Jsb Electrical Plc Control of electromagnetic emissioins in battery backed apparatus

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836815A (en) * 1972-05-24 1974-09-17 Gen Electric Emergency instant-start lighting system for arc discharge devices
DE2417760A1 (en) * 1973-04-16 1974-10-24 Philips Corp EMERGENCY LIGHTING DEVICE
US4029993A (en) * 1975-12-18 1977-06-14 General Electric Company Two level inverter circuit
DE2818242A1 (en) * 1977-04-28 1978-11-02 Gen Electric NORMAL / EMERGENCY LIGHTING CIRCUIT FOR A GAS DISCHARGE LAMP
GB2008871A (en) * 1977-11-21 1979-06-06 Esb Int Corp Auxiliary lighting systems associated with an alarm system
EP0266213A2 (en) * 1986-10-31 1988-05-04 Fano International Limited Emergency lighting system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3836815A (en) * 1972-05-24 1974-09-17 Gen Electric Emergency instant-start lighting system for arc discharge devices
DE2417760A1 (en) * 1973-04-16 1974-10-24 Philips Corp EMERGENCY LIGHTING DEVICE
US4029993A (en) * 1975-12-18 1977-06-14 General Electric Company Two level inverter circuit
DE2818242A1 (en) * 1977-04-28 1978-11-02 Gen Electric NORMAL / EMERGENCY LIGHTING CIRCUIT FOR A GAS DISCHARGE LAMP
GB2008871A (en) * 1977-11-21 1979-06-06 Esb Int Corp Auxiliary lighting systems associated with an alarm system
EP0266213A2 (en) * 1986-10-31 1988-05-04 Fano International Limited Emergency lighting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303978A (en) * 1995-07-31 1997-03-05 Jsb Electrical Plc Control of electromagnetic emissioins in battery backed apparatus
GB2303978B (en) * 1995-07-31 2000-01-12 Jsb Electrical Plc Control of electromagnetic emissions

Also Published As

Publication number Publication date
GB9317405D0 (en) 1993-10-27

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)