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WO1997039363A1 - Apparatus for the measurement of electrical energy consumption - Google Patents

Apparatus for the measurement of electrical energy consumption Download PDF

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Publication number
WO1997039363A1
WO1997039363A1 PCT/FI1997/000234 FI9700234W WO9739363A1 WO 1997039363 A1 WO1997039363 A1 WO 1997039363A1 FI 9700234 W FI9700234 W FI 9700234W WO 9739363 A1 WO9739363 A1 WO 9739363A1
Authority
WO
WIPO (PCT)
Prior art keywords
equivalent
measuring unit
measurement
fuses
busbar
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.)
Ceased
Application number
PCT/FI1997/000234
Other languages
Finnish (fi)
French (fr)
Inventor
Teijo Miettinen
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 AU25704/97A priority Critical patent/AU2570497A/en
Publication of WO1997039363A1 publication Critical patent/WO1997039363A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters

Definitions

  • the subject of this invention concerns apparatus for the measurement of electrical energy consumption by the consumer, analysed according to the various points of usage.
  • Consumption of electricity is monitored by recording the electricity consumed by a house or apartment by means of an electricity meter.
  • an electricity meter At present, however, it is not possible to accurately identify how energy consumption by the end-user is divided between various points of usage. In other words, how great is the consumption of electricity by various applications such as lighting, food preparation, heating or any other application.
  • the information obtained from one meter cannot be used to monitor electricity consumption due solely to, for example, heating. Estimates calculated for this purpose, whilst providing an indication, can differ significantly from the real situation.
  • the purpose of this invention is to introduce apparatus for the measurement of electrical energy consumption which can be used by the consumer to measure electrical energy consumption by point of usage or by area of usage.
  • the purpose of the invention is to introduce an apparatus which has a simple and functional construction.
  • the apparatus consists of wires or other elements connected to fuses or insulated cables, a busbar or equivalent in an electrical mains centre or equivalent for the purpose of data transfer, and a measuring unit for the conversion of the current or voltage of each fuse, cable, busbar or equivalent into a format that can be analysed.
  • One lead is connected to each fuse, fuse group, cable, busbar or equivalent and the measuring unit measures directly the current, voltage and efficiency of the particular fuse, fuse group, cable, busbar, or equivalent.
  • a fuse in this sense means a fuse plug or circuit breaker, i.e. an automatic fuse.
  • the measurement calculations are performed in the measuring unit.
  • the data from the measuring unit is transferred to a computer which calculates, analyses and prints the measurement results obtained. In the event that there is too much data arriving at the measuring unit for it to handle, the data is stored on the computer hard disk. Data can also be transferred by wireless means, for example optically, as an alternative to using leads.
  • the electrical energy consumption for the entire property can be recorded with the apparatus and identified by points or areas of usage.
  • the electrical consumption of appliances attached to the separate fuses, fuse groups, cables busbar, or equivalent can be identified and monitored.
  • the apparatus can be used for measuring hourly capacity and peak performance, selecting the cheapest electricity supply tariffs and the determination of the power coefficient. All the measurement results can be examined either as a whole or for each measured group separately. For example, the total energy cost formed by different tariffs can be verified by observation using the apparatus. With the help of the apparatus the optimal peak performance can be reliably defined because the efficiency can be checked in separate small areas.
  • the apparatus according to the invention can be a fixed installation or can be portable.
  • the apparatus includes a measured-value converter with which the variable to be measured can be transformed into a direct or a more easily handled format.
  • This kind of measured- value converter can, in accordance with the invention, be installed with the fuses, cables, busbar or equivalent element or measuring unit either inside them or on them or in their immediate vicinity.
  • the variables to be measured can be transformed with a transformer, semi-conductor technology or by using optical measured- value transforming technology.
  • the apparatus includes a multiplexer which is located between the leads and the measuring unit.
  • the measurement is carried out using the multiplexer to connect each of the fuses to be measured to the measuring apparatus.
  • the apparatus includes a memory unit situated after the measuring unit for the collection and recovery of data.
  • This kind of separate memory unit can be used to collect data which can be transferred at suitable intervals to the actual computer.
  • Figure 1 shows an application of the apparatus in accordance with the invention in diagrammatic form
  • figure 2 shows another application in diagrammatic form.
  • the area or main electricity centre is shown as number 1 and the fuses and fuse box covers located in it are shown as number 2.
  • the apparatus according to the invention includes the leads 3, which are directly connected to the fuses, and the measured- value converter 4 connected to the leads.
  • the connection of the leads to the converter can be carried out so that all the fuse covers are exchanged for covers connected by bipolar measuring leads 3 to the measured-value converter 4.
  • the converter itself is connected to the computer 5.
  • the current and voltage values to be measured are transferred from the base of the plug fuses 2 along the measuring leads 3 to the measured- value converter 4.
  • the measured- value converter the current and voltage are converted into a suitable format so that the data can be analysed by the computer 5.
  • the measuring apparatus remains connected to the fuse group at the mains centre for as long as is necessary to achieve sufficiently accurate results.
  • FIG. 2 In the layout shown in figure 2 there is a multiplexer 6 placed between the measuring unit 4 and the leads 3.
  • the multiplexer selects the fuses to be monitored in the measurement unit 4.
  • the measuring unit itself is connected to the computer 5 in this case as well.
  • the apparatus can be used with as many measurement areas as required.
  • the apparatus can be used, for example, as a normal multichannel Kwh meter or as an interference analyser depending on what kind of programme has been programmed into the measuring unit.
  • the programmes in the measuring unit can also be changed as necessary.
  • wireless connections are used for the transfer of data from the fuses, cables, busbar or equivalent elements to the measuring unit.
  • Wireless connection can be achieved using existing recognised methods such as equipment operating by optical or other methods.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)

Abstract

The subject of this invention is an apparatus for the measurement of electrical energy consumption by the consumer, analysed according to the various points of usage. The apparatus according to the invention consists of wires (3) or other elements connected to fuses (2) or insulated cables, busbar or equivalent in an electrical main centre (1) or equivalent for the purpose of data transfer, and a measuring unit (4) for the conversion of the current or voltage of each fuse, cable, busbar or equivalent into a form that can be analysed.

Description

APPARATUS FOR THE MEASUREMENT OF ELECTRICAL ENERGYCONSUMPTION
The subject of this invention concerns apparatus for the measurement of electrical energy consumption by the consumer, analysed according to the various points of usage.
Consumption of electricity is monitored by recording the electricity consumed by a house or apartment by means of an electricity meter. At present, however, it is not possible to accurately identify how energy consumption by the end-user is divided between various points of usage. In other words, how great is the consumption of electricity by various applications such as lighting, food preparation, heating or any other application. The information obtained from one meter cannot be used to monitor electricity consumption due solely to, for example, heating. Estimates calculated for this purpose, whilst providing an indication, can differ significantly from the real situation.
A meter is described in GB patent number 2157448 which is aimed at identifying electrical energy consumption by individual household or equivalent unit. However, there is no description in any form in the publication concerning the measurement of energy by the consumer analysed by points of usage or any apparatus designed for this purpose.
The purpose of this invention is to introduce apparatus for the measurement of electrical energy consumption which can be used by the consumer to measure electrical energy consumption by point of usage or by area of usage. In addition, the purpose of the invention is to introduce an apparatus which has a simple and functional construction.
The purpose of the invention is achieved with apparatus possessing the characteristics presented in the appended patent claims.
The apparatus according to the invention consists of wires or other elements connected to fuses or insulated cables, a busbar or equivalent in an electrical mains centre or equivalent for the purpose of data transfer, and a measuring unit for the conversion of the current or voltage of each fuse, cable, busbar or equivalent into a format that can be analysed. One lead is connected to each fuse, fuse group, cable, busbar or equivalent and the measuring unit measures directly the current, voltage and efficiency of the particular fuse, fuse group, cable, busbar, or equivalent. A fuse in this sense means a fuse plug or circuit breaker, i.e. an automatic fuse. The measurement calculations are performed in the measuring unit. The data from the measuring unit is transferred to a computer which calculates, analyses and prints the measurement results obtained. In the event that there is too much data arriving at the measuring unit for it to handle, the data is stored on the computer hard disk. Data can also be transferred by wireless means, for example optically, as an alternative to using leads.
The electrical energy consumption for the entire property can be recorded with the apparatus and identified by points or areas of usage. The electrical consumption of appliances attached to the separate fuses, fuse groups, cables busbar, or equivalent can be identified and monitored. In addition to the measurement of current and voltage the apparatus can be used for measuring hourly capacity and peak performance, selecting the cheapest electricity supply tariffs and the determination of the power coefficient. All the measurement results can be examined either as a whole or for each measured group separately. For example, the total energy cost formed by different tariffs can be verified by observation using the apparatus. With the help of the apparatus the optimal peak performance can be reliably defined because the efficiency can be checked in separate small areas. In addition, it should also be noted that the apparatus according to the invention can be a fixed installation or can be portable.
In the advantageous application of the invention the apparatus includes a measured-value converter with which the variable to be measured can be transformed into a direct or a more easily handled format. This kind of measured- value converter can, in accordance with the invention, be installed with the fuses, cables, busbar or equivalent element or measuring unit either inside them or on them or in their immediate vicinity. The variables to be measured can be transformed with a transformer, semi-conductor technology or by using optical measured- value transforming technology.
In a second advantageous application of the invention the apparatus includes a multiplexer which is located between the leads and the measuring unit. When taking measurement readings from multiple fuses (e.g. 20 fuses), the measurement is carried out using the multiplexer to connect each of the fuses to be measured to the measuring apparatus.
In a third advantageous application of the invention the apparatus includes a memory unit situated after the measuring unit for the collection and recovery of data. This kind of separate memory unit can be used to collect data which can be transferred at suitable intervals to the actual computer.
In the following, the invention is defined in more detail with reference to the attached illustrations, in which: Figure 1 shows an application of the apparatus in accordance with the invention in diagrammatic form, and figure 2 shows another application in diagrammatic form.
In the application shown in figure 1, the area or main electricity centre is shown as number 1 and the fuses and fuse box covers located in it are shown as number 2. The apparatus according to the invention includes the leads 3, which are directly connected to the fuses, and the measured- value converter 4 connected to the leads. The connection of the leads to the converter can be carried out so that all the fuse covers are exchanged for covers connected by bipolar measuring leads 3 to the measured-value converter 4. The converter itself is connected to the computer 5.
The current and voltage values to be measured are transferred from the base of the plug fuses 2 along the measuring leads 3 to the measured- value converter 4. In the measured- value converter the current and voltage are converted into a suitable format so that the data can be analysed by the computer 5. The measuring apparatus remains connected to the fuse group at the mains centre for as long as is necessary to achieve sufficiently accurate results.
In the layout shown in figure 2 there is a multiplexer 6 placed between the measuring unit 4 and the leads 3. The multiplexer selects the fuses to be monitored in the measurement unit 4. The measuring unit itself is connected to the computer 5 in this case as well. The apparatus can be used with as many measurement areas as required.
Various programmes can be used in the measuring unit according to requirements. The apparatus can be used, for example, as a normal multichannel Kwh meter or as an interference analyser depending on what kind of programme has been programmed into the measuring unit. The programmes in the measuring unit can also be changed as necessary.
In other adaptations of the invention, wireless connections are used for the transfer of data from the fuses, cables, busbar or equivalent elements to the measuring unit. Wireless connection can be achieved using existing recognised methods such as equipment operating by optical or other methods.
The invention is not limited to the advantageous arrangements shown but can vary within the framework of the invention concept formed by the claims.

Claims

1. Apparatus for the measurement of electrical energy consumption by the consumer analysed according to points of usage, character!- s e d in that the apparatus includes leads (3) or other elements which are connected to fuses (2) or insulated cables, busbar or equivalent located in an electrical mains centre (1) or equivalent for the transfer of data and a measuring unit (4) for the conversion of current or voltage from each fuse, cable, rail or equivalent to a format suitable for analysis.
2. Apparatus according to patent claim 1, characterised in that the apparatus includes equipment for the conversion of the variable to be measured. This equipment is located in the fuses (2), cables, busbar or equivalent element.
3. Apparatus according to patent claim 1, characterised in that the apparatus includes equipment for the conversion of the variable to be measured. This equipment is located in the measuring unit.
4. Apparatus according to any of the patent claims 1-3, characte¬ rised in that the apparatus includes a multiplexer (5) positioned between the leads (3) and the measuring unit (4).
5. Apparatus according to any of the patent claims 1-4, characte¬ rised in that the apparatus includes a memory unit positioned after the measuring unit for the collection and recovery of data.
PCT/FI1997/000234 1996-04-16 1997-04-16 Apparatus for the measurement of electrical energy consumption Ceased WO1997039363A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25704/97A AU2570497A (en) 1996-04-16 1997-04-16 Apparatus for the measurement of electrical energy consumption

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI961658A FI961658L (en) 1996-04-16 1996-04-16 Equipment for measuring electrical energy consumption
FI961658 1996-04-16

Publications (1)

Publication Number Publication Date
WO1997039363A1 true WO1997039363A1 (en) 1997-10-23

Family

ID=8545851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1997/000234 Ceased WO1997039363A1 (en) 1996-04-16 1997-04-16 Apparatus for the measurement of electrical energy consumption

Country Status (3)

Country Link
AU (1) AU2570497A (en)
FI (1) FI961658L (en)
WO (1) WO1997039363A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001073453A1 (en) * 2000-03-29 2001-10-04 Georg Riegel System for the decentralised recording of energy and material flows
GB2379992A (en) * 2001-09-25 2003-03-26 Siemens Metering Ltd Improvements in or relating to Electricity Meters
GB2428486A (en) * 2005-07-19 2007-01-31 James Albert Owen Energy use monitor
ES2400995A1 (en) * 2010-11-12 2013-04-16 Pronutec, S.A. Measurement module based on tripolar fuse holders. (Machine-translation by Google Translate, not legally binding)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157448A (en) * 1984-04-10 1985-10-23 Yu Chen Watt-hour meter
EP0232173A2 (en) * 1986-02-06 1987-08-12 Oliver J. Nilsen (Australia) Limited Electrical energy-consumption analyser
FR2617310A1 (en) * 1987-06-26 1988-12-30 Kalfon Rene Centralised metering device especially for electrical energy consumption
EP0315834A1 (en) * 1987-11-10 1989-05-17 Siemens Aktiengesellschaft Meter with two tarif counters for the separate calculation of the current usage of two user groups
WO1990012325A1 (en) * 1989-04-04 1990-10-18 Standard Telephone And Cables Pty. Limited A sampling circuit
GB2274171A (en) * 1993-01-04 1994-07-13 Laurence Julian Trackman Electricity monitor
DE4413028A1 (en) * 1994-04-18 1995-10-19 Gemac Ges Fuer Mikroelektronik Appts. for measuring and recording machine operation hours and states

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2157448A (en) * 1984-04-10 1985-10-23 Yu Chen Watt-hour meter
EP0232173A2 (en) * 1986-02-06 1987-08-12 Oliver J. Nilsen (Australia) Limited Electrical energy-consumption analyser
FR2617310A1 (en) * 1987-06-26 1988-12-30 Kalfon Rene Centralised metering device especially for electrical energy consumption
EP0315834A1 (en) * 1987-11-10 1989-05-17 Siemens Aktiengesellschaft Meter with two tarif counters for the separate calculation of the current usage of two user groups
WO1990012325A1 (en) * 1989-04-04 1990-10-18 Standard Telephone And Cables Pty. Limited A sampling circuit
GB2274171A (en) * 1993-01-04 1994-07-13 Laurence Julian Trackman Electricity monitor
DE4413028A1 (en) * 1994-04-18 1995-10-19 Gemac Ges Fuer Mikroelektronik Appts. for measuring and recording machine operation hours and states

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001073453A1 (en) * 2000-03-29 2001-10-04 Georg Riegel System for the decentralised recording of energy and material flows
GB2379992A (en) * 2001-09-25 2003-03-26 Siemens Metering Ltd Improvements in or relating to Electricity Meters
GB2428486A (en) * 2005-07-19 2007-01-31 James Albert Owen Energy use monitor
ES2400995A1 (en) * 2010-11-12 2013-04-16 Pronutec, S.A. Measurement module based on tripolar fuse holders. (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
FI961658A0 (en) 1996-04-16
AU2570497A (en) 1997-11-07
FI961658A7 (en) 1997-10-17
FI961658L (en) 1997-10-17

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