GB2229589A - Temporary operation of an electrical or electromagnetic device in a system including an electric meter - Google Patents

Temporary operation of an electrical or electromagnetic device in a system including an electric meter Download PDF

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Publication number
GB2229589A
GB2229589A GB9003545A GB9003545A GB2229589A GB 2229589 A GB2229589 A GB 2229589A GB 9003545 A GB9003545 A GB 9003545A GB 9003545 A GB9003545 A GB 9003545A GB 2229589 A GB2229589 A GB 2229589A
Authority
GB
United Kingdom
Prior art keywords
electrical
mtor
motor
coil
feeding source
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Withdrawn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
GB9003545A
Other versions
GB9003545D0 (en
Inventor
Marcos Guilherme Schwarz
Egidio Berwanger
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.)
Empresa Brasileira de Compressores SA
Original Assignee
Empresa Brasileira de Compressores SA
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 Empresa Brasileira de Compressores SA filed Critical Empresa Brasileira de Compressores SA
Publication of GB9003545D0 publication Critical patent/GB9003545D0/en
Publication of GB2229589A publication Critical patent/GB2229589A/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Withdrawn legal-status Critical Current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
    • H02J9/066—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 characterised by the use of dynamo-electric machines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

Description

i :1_ TEMPORARY OPERATION OF AN ELECTRICAL OR ELECTROMAGNETIC DEVICE IN A
SYSTEM INCLUDING AN ELECTRIC MOTOR i j 1 1 i i 1 This invention refers to a system for driving electrical/ electromagnetic devices in an installation or equipment using the powering condition of an electrical motor for this installation or equipment. Driving systems of this type can be used, for example, in solenoid valves, electromechanic type sound alarms, indicating the end of the motor operating cycle and keys in general of the bi-stable type, being driven by electrical pulses. Devices of this type are usually driven by e- lectric current fed by an externalfeeding source, and consumes a certain amount of electric energy. it is an object of this invention to provide a system for driving an electrical/electromagnetic device making part of an installation or equipment the operation of which is indepdndent, at least during some extent of its work cycle, from the external feeding source for the installation or equipment. It is another object of this invention to provide a system for temporary driving of electrical/electromagnetic devices which does not cause consumption of electric energy from the external feeding source for the installation. The objects abovementioned are substantially reached 02 from an installation or equipment including an electrical motor of tha type which is constituted of a stator and a rotor; an electrical f eeding source which can be selectively connected to said electrical motor; and an electrical/ electromagnetic device which can be powered at least during some portion of its work cycle from the installation or equipment. According to this invention, the electrical/electromagnetic device is connected in parallel to the electrical motor I- when it-is switched off. When the motor is-switched off, network feeding current is interrupted and the rotor is decelerated until its stop. During this deceleration, the electrical motor acts as a generator, and causes an electrical curredt to flowthrough-the electrical/electromagnetic device. Said electrical current can be used to drive te device for some time thereby'averiding energy consumption from the feeding network. The invention will hereinafter described with reference to the annexed drawings, in which: Figura 1 is a schematic view of a basic inst&llation employing the principle of this invention; and Figure 2 is a schematic view with details of the electrical, circuit for an installation which uses an electromagnetic device in the form of a solenoid valve being driven by the principle as already described.
As illustrated in figure 1, an installation or equipment A 03 using the driving system in qdestion, is constituted of an electrical motor 10, an electrical or electromagnetic device 20 and a change-over switch 30, with the installa tion being fed by an external source 40.
As illustrated in figure 2, the electrical/electromagnetic device 20 is constituted of a f itst coil 21 and a second coil 22 which function, in the Illustrated example, respectively to open and close the solenoid valve. The second coil 22 or opening coil is connected to the motor electrical circuit, which comprises an auxiliary coil 11, a starting device 13, a main coil 12 and a voltage sour ce 40. The motor electrical circuit may also include a start capacitor 23 which is connected in series to the.auxiliary coil 11.
The change-over switch 30 can be driven by a thermostat or any other installation used switching device.
The first coil 21 operates when the motor is statted, the start device 13 allowing a temporary current flow through the coil 21 whidh is connected in series to the auxiliary coil 11 of the motor. This temporary current flow will occur due to the operation of the start devi ce 13. which switches off the auxiliary coil 11 after a small period of time being elapsed.
The operation of the second coil 22 starts when the mo tor is turned off, when the change7over switch 30 moves from position A to position B, connecting in parallel the second coil 22 to the main coil 12 of the motor, 04 when said motor starts its deceleration movement. During this deceleration period. the motor acts as an electrical. energy generator, and causes temporarily a current to f low through the second coil 22, this current being generated by the main coil 12 of the motor 10. Concerning the illustrated circuit, it shall be noted that the current flowing through the first coil 21 of the el ectrical/electromagne tic device 20 is supplied by the source 40 while the current flowing through the second coil 22 is generated by the electrical motor itself 10 when it is turned off. Therefore, the operation of the second coil 22 does not cause any electrical energy consumption in the feeding network (herein represented by the external.source 40), since this energy is generated by the electrical motor 10 rotor inertia. Although some prefdrr-.d applications of this invention are herein described, It will be understood that the principles thereof can be applied to several types of equipment and installations, having electrical circuits in the most diversified configurations including components and devices not showed in the annexed drawings.
A c t 1

Claims (5)

  1. CLAIMS:
    A system for driving electrical/electrcmagnetic devices in an installation or equit of the type including at least an electrical motor conprising a stator and a rotor; an electrical feeding source which can be selectively connected to said electrical motor and an electrical/electramagnetic device which can be powered, at least during some portion of its work cycle from the installation or equipment, characterized in that the electrical/electramagnetic device (20) is connected in parallel to said electrical motor (10) when the mtor is disconnected from the electric feeding source (40).
  2. 2. A system according to claim 1, wherein said electrical mtor rises a main winding, a secondary winding and a starting device, characterized in that the electrical/electron-agnetic device (20) con-prises a first coil (21), which is connected in series to the auxiliary winding (11) and to the starting device (13) of the electrical motor (10), and a second coil (22) which is autamattically and simultaneously powered when the electrical mtor is disconnected from the electrical feeding source (40).
  3. 3. A system according to claim 2, characterized in that the second coil (22) for the electrical/electromagnetic device (20) is automatically and simultaneously connected in parallel to the main electrical mtor (10) winding (12) when said electrical motor is disconnected from the electrical feeding source (40).
  4. 4. A system according to claim 1, 2 or 3 and including a Changeover switch movable between a first position connecting the electrical motor to the feeding source and a second position disconnecting the electrical mtor from the feeding source, characterized in that the electrical/electromagnetic device (20) is connected in parallel to the electrical motor (10) by the changeover switch (30), when the latter is in its second position.
    -.6 -
  5. 5. An electrical system including an electric mtor supplied by an electric power source and an electrical or electrceragnetic device which is to be energized for short periods characterized by switching neans which upon disconnection of the electric mtor from the source connects the device to receive current fram the decelerating mtor.
    Published 1990a-,ThePaten.o--lce.Sta.A House 667,HlghHclborr,.1, ondonWC1R4TP Purther copies Tnky be obtLined from The PeAnt02ice Sales Br&nch. 5 Ma.7 Cray Orpingtor.. Kent BRS 3RD. Printed by Multiplex techniques ltd- St Mary Cray. Kent- Cori. 1,87
GB9003545A 1989-02-16 1990-02-16 Temporary operation of an electrical or electromagnetic device in a system including an electric meter Withdrawn GB2229589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR898900773A BR8900773A (en) 1989-02-16 1989-02-16 SYSTEM OF DRIVING ELECTRICAL / ELECTROMAGNETIC DEVICES OF AN INSTALLATION OR EQUIPMENT

Publications (2)

Publication Number Publication Date
GB9003545D0 GB9003545D0 (en) 1990-04-11
GB2229589A true GB2229589A (en) 1990-09-26

Family

ID=4046573

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9003545A Withdrawn GB2229589A (en) 1989-02-16 1990-02-16 Temporary operation of an electrical or electromagnetic device in a system including an electric meter

Country Status (5)

Country Link
JP (1) JPH02276487A (en)
BR (1) BR8900773A (en)
DE (1) DE4004734A1 (en)
GB (1) GB2229589A (en)
IT (1) IT1238130B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330958A (en) * 1997-11-04 1999-05-05 Samsung Electronics Co Ltd Microwave oven power supply

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB555128A (en) * 1941-01-21 1943-08-05 British Thomson Houston Co Ltd Improvements in and relating to electric control systems
GB1301080A (en) * 1970-01-23 1972-12-29 Tokyo Keiki Kk Gyroscopic apparatus
WO1982000927A1 (en) * 1980-09-02 1982-03-18 E Mucsy Stand-by energy source,in particular an electrical supply source
GB2139828A (en) * 1983-02-22 1984-11-14 Yang Tai Her Rotary drive apparatus with multi-function drive mechanism
US4723099A (en) * 1984-12-03 1988-02-02 Bbc Brown, Boveri & Company Limited Drive for a switch
US4733146A (en) * 1984-11-09 1988-03-22 Reliance Electric Company Energy recovery system for cyclic drives

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB555128A (en) * 1941-01-21 1943-08-05 British Thomson Houston Co Ltd Improvements in and relating to electric control systems
GB1301080A (en) * 1970-01-23 1972-12-29 Tokyo Keiki Kk Gyroscopic apparatus
WO1982000927A1 (en) * 1980-09-02 1982-03-18 E Mucsy Stand-by energy source,in particular an electrical supply source
GB2139828A (en) * 1983-02-22 1984-11-14 Yang Tai Her Rotary drive apparatus with multi-function drive mechanism
US4733146A (en) * 1984-11-09 1988-03-22 Reliance Electric Company Energy recovery system for cyclic drives
US4723099A (en) * 1984-12-03 1988-02-02 Bbc Brown, Boveri & Company Limited Drive for a switch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330958A (en) * 1997-11-04 1999-05-05 Samsung Electronics Co Ltd Microwave oven power supply
US5928552A (en) * 1997-11-04 1999-07-27 Samsung Electronics Co., Ltd. Power supply circuit of a microwave oven
GB2330958B (en) * 1997-11-04 1999-12-22 Samsung Electronics Co Ltd Microwave oven

Also Published As

Publication number Publication date
DE4004734A1 (en) 1990-08-23
IT9019366A0 (en) 1990-02-14
IT1238130B (en) 1993-07-07
BR8900773A (en) 1990-10-02
JPH02276487A (en) 1990-11-13
IT9019366A1 (en) 1990-08-17
GB9003545D0 (en) 1990-04-11

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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)