GB2447465A - Electrical power consumption monitor - Google Patents

Electrical power consumption monitor Download PDF

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Publication number
GB2447465A
GB2447465A GB0704806A GB0704806A GB2447465A GB 2447465 A GB2447465 A GB 2447465A GB 0704806 A GB0704806 A GB 0704806A GB 0704806 A GB0704806 A GB 0704806A GB 2447465 A GB2447465 A GB 2447465A
Authority
GB
United Kingdom
Prior art keywords
power consumption
electrical power
monitor unit
unit according
consumption monitor
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Withdrawn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
GB0704806A
Other versions
GB0704806D0 (en
Inventor
Richard Pledger
Richard Jeffs
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
Priority to GB0704806A priority Critical patent/GB2447465A/en
Publication of GB0704806D0 publication Critical patent/GB0704806D0/en
Publication of GB2447465A publication Critical patent/GB2447465A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16571—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing AC or DC current with one threshold, e.g. load current, over-current, surge current or fault current
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/133—Arrangements for measuring electric power or power factor by using digital technique
    • G01R21/1333—Arrangements for measuring electric power or power factor by using digital technique adapted for special tariff measuring
    • G01R21/1336—Measuring overconsumption

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

An electrical power consumption monitoring unit is attached to an electrical supply and compares the power consumption with a threshold and annunciates the comparison result. The device may be attached to a supply by a clamp ammeter or a parallel ammeter, and the comparison system may comprise analogue or digital electronics and include multiple thresholds. The comparison result may be indicated, by a lamp, multiple coloured lamps, LEDs, an audible sounder, a buzzer, or a mechanical indicator and the annunciation device may be remote from the comparator, linked by a direct electrical connection or a wireless radio connection. The device is used to indicate when action should be taken to reduce electrical consumption, for example by turning off appliances and fittings.

Description

Description:
This invention relates to a device for monitoring electrical power consumption and announcing when action should be taken to reduce consurrtption.
The cost of energy is increasing and people are often unable to keep track of how much energy each appliance or fitting is using.
To overcome this problem, the present invention proposes an electrical power consumption monitor unit comprising a means for attaching the unit to an electrical suppiy, a comparison system which compares the power consumption level against a preset threshold or thresholds, and annunciation means such that the comparison result can be output.
The power supply attachment means is preferably provided by a clamp ammeter, although the power supply attachment means may also be provided by other means such as a parallel ammeter circuit.
The preferred comparison system is provided by an analogue electronic circuit, although the comparison system may also be provided by other means such as digital electronic means.
The preferred annunciation means is provided by a set of colour-coded lights, although the annunciation means may also be provided by other means such as a buzzer or mechanical signal.
The annunciation means may also be remote from the comparison system and linked by means of a direct electrical connection or by means of wireless radio connection.
The invention will now be described solely by way of example: A clamp ammeter is positioned around the live supply wire at the electricity consumer meter. The low voltage ammeter output is fed to a battery operated electronic circuit comprising a switching transistor, associated components and a light emitting diode. The battery voltage is switched by the transistor at a preset threshold by the ammeter output to illuminate the light emitting diode. This signal will command that electrical appliances and fittings should be turned off until power consumption is below the preset threshold.

Claims (12)

  1. Claims: 1. An electrical power consumption monitor unit comprising a
    means for attaching the unit to an electrical supply, a comparison system which compares the power consumption level against a preset threshold, and an annunciation means such that the comparison result can be output.
  2. 2. An electrical power consumption monitor unit according to claim 1, in which the attachment means are provided by a clamp ammeter.
  3. 3. An electrical power consumption monitor unit according to claim 1, in which the attachment means are provided by a parallel ammeter circuit.
  4. 4. An electrical power consumption monitor unit according to claim 1, in which the comparison system is implemented by means of analogue electronics.
  5. 5. An electrical power consumption monitor unit according to claim 1, in which the comparison system is implemented by means of digital electronics.
  6. 6. An electrical power consumption monitor unit according to claim 1, in which the comparison system compares against multiple thresholds.
  7. 7. An electrical power consumption monitor unit according to claim 1, in which the annunciation means is provided by a lamp.
  8. 8. An electrical power consumption monitor unit according to claim 1, in which the annunciation means is provided by an audible sounder.
  9. 9. An electrical power consumption monitor unit according to claim 1, in which the annunciation means is provided by a mechanical signal.
  10. 10. An electrical power consumption monitor unit according to claim 1, in which the annunciation means is remote from the comparison system and linked by means of a direct electrical connection.
  11. 11. An electrical power consumption monitor unit according to claim 1, in which the annunciation means is remote from the comparison system and linked by means of wireless radio connection.
  12. 12. An electrical power consumption monitor unit according to claim 6, in which the annunciation means is provided by multiple colour-coded lamps.
GB0704806A 2007-03-13 2007-03-13 Electrical power consumption monitor Withdrawn GB2447465A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0704806A GB2447465A (en) 2007-03-13 2007-03-13 Electrical power consumption monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0704806A GB2447465A (en) 2007-03-13 2007-03-13 Electrical power consumption monitor

Publications (2)

Publication Number Publication Date
GB0704806D0 GB0704806D0 (en) 2007-04-18
GB2447465A true GB2447465A (en) 2008-09-17

Family

ID=37988877

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0704806A Withdrawn GB2447465A (en) 2007-03-13 2007-03-13 Electrical power consumption monitor

Country Status (1)

Country Link
GB (1) GB2447465A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2461292A (en) * 2008-06-26 2009-12-30 Tantallon Systems Ltd Energy management
GB2461505A (en) * 2008-06-30 2010-01-06 Landis & Gyr Ag Displaying metered commodity consumption by colour

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1559827A (en) * 1976-11-26 1980-01-30 Ass Eng Ltd Electricity power demand monitoring system
GB2133594A (en) * 1982-12-24 1984-07-25 Leslie Taylor Electrical power consumption costing device
US5589764A (en) * 1991-03-05 1996-12-31 Lee; Graham S. Meter for measuring accumulated power consumption of an electrical appliance during operation of the appliance
CA2254280A1 (en) * 1998-01-07 1999-07-07 Bickell, Roy A. Electrical power draw monitoring device
GB2336724A (en) * 1998-01-07 1999-10-27 Bridisco Ltd An electric plug socket strip showing the power drawn
EP0981053A1 (en) * 1997-05-08 2000-02-23 Vincente Rodilla Sala Programmable monitoring device for electric consumption
WO2001063578A1 (en) * 2000-02-24 2001-08-30 Matsushita Electric Industrial Co., Ltd. Table tap and monitor system using table tap
US20040189462A1 (en) * 2001-08-02 2004-09-30 Frank Eilers Signalling device for the operating state of an appliance
GB2420863A (en) * 2004-12-08 2006-06-07 Bewire Facilities Man Ltd Energy management display system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1559827A (en) * 1976-11-26 1980-01-30 Ass Eng Ltd Electricity power demand monitoring system
GB2133594A (en) * 1982-12-24 1984-07-25 Leslie Taylor Electrical power consumption costing device
US5589764A (en) * 1991-03-05 1996-12-31 Lee; Graham S. Meter for measuring accumulated power consumption of an electrical appliance during operation of the appliance
EP0981053A1 (en) * 1997-05-08 2000-02-23 Vincente Rodilla Sala Programmable monitoring device for electric consumption
CA2254280A1 (en) * 1998-01-07 1999-07-07 Bickell, Roy A. Electrical power draw monitoring device
GB2336724A (en) * 1998-01-07 1999-10-27 Bridisco Ltd An electric plug socket strip showing the power drawn
WO2001063578A1 (en) * 2000-02-24 2001-08-30 Matsushita Electric Industrial Co., Ltd. Table tap and monitor system using table tap
US20040189462A1 (en) * 2001-08-02 2004-09-30 Frank Eilers Signalling device for the operating state of an appliance
GB2420863A (en) * 2004-12-08 2006-06-07 Bewire Facilities Man Ltd Energy management display system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2461292A (en) * 2008-06-26 2009-12-30 Tantallon Systems Ltd Energy management
GB2461292B (en) * 2008-06-26 2012-02-08 Tantallon Systems Ltd Systems and methods for energy management
GB2461505A (en) * 2008-06-30 2010-01-06 Landis & Gyr Ag Displaying metered commodity consumption by colour

Also Published As

Publication number Publication date
GB0704806D0 (en) 2007-04-18

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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)