[go: up one dir, main page]

WO2006046019A1 - Controleur d'alimentation en electricite - Google Patents

Controleur d'alimentation en electricite Download PDF

Info

Publication number
WO2006046019A1
WO2006046019A1 PCT/GB2005/004105 GB2005004105W WO2006046019A1 WO 2006046019 A1 WO2006046019 A1 WO 2006046019A1 GB 2005004105 W GB2005004105 W GB 2005004105W WO 2006046019 A1 WO2006046019 A1 WO 2006046019A1
Authority
WO
WIPO (PCT)
Prior art keywords
electricity supply
electricity
voltage
supply
output
Prior art date
Application number
PCT/GB2005/004105
Other languages
English (en)
Inventor
Zia Shlaimoun
Original Assignee
Presidio Technology Group Limited
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 Presidio Technology Group Limited filed Critical Presidio Technology Group Limited
Publication of WO2006046019A1 publication Critical patent/WO2006046019A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/12—Arrangements for reducing harmonics from AC input or output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/06—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/068—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode mounted on a transformer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
    • H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
    • H02M7/06—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • H02M7/08—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in parallel

Definitions

  • the present invention relates to an electricity supply controller and, in particular, an electricity supply controller for preventing voltage surges from damaging electrical equipment and reducing electricity consumption that can be standalone and within its own enclosure, fitted alongside a mains electricity disconnector, fitted into a consumer unit or a power meter.
  • the present invention will now be described in the form of a mains disconnector and/or circuit breaker fitted within a consumer unit.
  • Consumer units commonly referred to as fuse boxes, are normally found in domestic premises and some commercial premises. They are designed to control distribution of the single or three-phase electricity supply to various electrical circuits within the site.
  • a consumer unit normally has a single supply but feeds a number of circuits connected to different types of loads such as lighting, 13 amp outlet sockets and high power appliances such as electric ovens and electric heating systems.
  • Consumer units are normally fitted with a single mains disconnector and a number of circuit breakers, each supplying one or more circuits.
  • both mains disconnector and circuit breaker are fitted with isolation switches that allow the outputs to be manually isolated. The same switch allows the mains disconnector and circuit breaker to be reset after a "trip" disconnection.
  • the present invention seeks to provide for an electricity supply controller having advantages over known such controllers.
  • an electricity supply controller arranged for connection to an electricity supply, comprising: (i) input connection means arranged for connection to the electricity supply; (ii) output connection means for outputting an electricity supply to a load; and (iii) means located between said input and output for modifying a characteristic of said electricity supply.
  • the controller includes means for causing the electricity supply to bypass said means for modifying the said characteristic of said electricity supply in the event of a fault condition or for purposes of test/measurement and means for interrupting electricity supply through said electricity supply controller from said input to said output in the event of a fault condition and for isolation purposes;
  • said means for interrupting electricity supply through said electricity supply controller comprises a first electro-mechanical switch.
  • a first actuation means cooperates with said first electro ⁇ mechanical switch and is biased such that, in normal operation, the electro ⁇ mechanical switch is in a make position, and electrical current flows through said means for modifying the said characteristic of said electricity supply and from their into the load.
  • said means for interrupting electricity supply through said electricity supply controller comprises first actuation means for moving said electro-mechanical switch between make and break positions.
  • An example of the means for modifying the characteristic of said electricity supply is means for capping output voltage at a fixed level.
  • said means for modifying the said characteristic of said electricity supply comprises a means for varying a phase angle between a voltage waveform and a current waveform.
  • said means for causing the electricity supply to bypass said means for modifying the said characteristic of said electricity supply consists of a means that can detect a fault condition within the said electricity supply controller and can cause electricity supply to bypass said means for modifying the said characteristic of said electricity supply in order to avoid disrupting the electricity supply to equipment connected to said electricity supply controller in the event of a fault condition.
  • said means for causing the electricity supply to bypass said means for modifying the said characteristic of said electricity supply comprises a second electro-mechanical switch.
  • said means for causing the electrical current to bypass said means for modifying the said characteristic of said electricity supply further comprises second actuation means for moving said electro-mechanical switch between break and make positions.
  • said second actuation means cooperates with said second electro-mechanical switch and is biased such that, in normal operation, the electro-mechanical switch is in a break position, and electrical current does not flow through said means for bypassing the said means for modifying the said characteristic of said electricity supply.
  • said second actuation means further comprises a latching means arranged for holding said second electro-mechanical switch in a break position during normal operation.
  • said electricity supply controller further comprises means for controlling operation of said means for interrupting electrical current flow through said electricity supply controller and said means for causing the electrical current to bypass said means for modifying the said characteristic of said electricity supply and thereby allowing for selection of the following operating modes:
  • said electricity supply controller further comprises status indicators for indicating the status of said means for interrupting electrical current flow through said electricity supply controller and said means for causing the electrical current to bypass said means for modifying the said characteristic of said electricity supply.
  • said electricity supply controller is powered by said input supply.
  • said electricity supply controller is arranged for connection to a single-phase supply voltage.
  • said electricity supply controller is arranged for connection to a multiple-phase supply voltage.
  • said multiple-phase supply voltage is a three-phase supply voltage.
  • said electricity supply controller further comprises a temperature sensing means arranged to detect the temperature in said electricity supply controller, wherein an output signal of said temperature sensing means is arranged to control operation of said means for causing the electrical current to bypass said means for modifying the said characteristic of said electricity supply.
  • said signal output from said temperature sensing means activates said means for causing the electrical current to bypass said means for modifying the said characteristic of said electricity supply.
  • said electricity supply controller forms part of an electric circuit mains disconnector.
  • said electricity supply controller forms part of a circuit breaker.
  • an electro-mechanical switch of means for interrupting electrical current flow through said electricity supply controller is moveable between make and break positions.
  • said electro-mechanical switch is latched in a make position during normal operation.
  • an electro-mechanical switch of means for causing the electrical current to bypass said means for modifying the said characteristic of said electricity supply is moveable between break and make positions.
  • said electro-mechanical switch is latched in a break position during normal operation.
  • Figure 1a illustrates a schematic block diagram of electricity distribution in a home, with main electricity supply controller of the present invention in place of known a mains disconnector;
  • Figure 1 b illustrates a schematic block diagram of electricity distribution in a home, with secondary electricity supply controllers of the present invention in place of known circuit breakers on some of the electrical circuits;
  • Figure 2 illustrates a perspective view of an electricity supply controller
  • Figure 3 illustrates a block diagram representation of the electricity supply controller of Figure 2;
  • Figure 4 illustrates a schematic circuit diagram of the electricity supply controller of Figure 2 in a first embodiment
  • Figure 5 illustrates a schematic circuit diagram of the electricity supply controller of Figure 2 in a second embodiment.
  • Figures 1a & 1 b illustrate an electricity distribution circuit in a home.
  • a circuit could also be in, for example, commercial premises.
  • FIG. 1a there is illustrated an electricity supply means 1 (from the mains supply) which is coupled to an electricity meter 2, which, in turn, is coupled to a main electricity supply controller 3 embodying the present invention.
  • Main electricity supply controller 3 is arranged to govern the electricity supply entering the entire electricity distribution circuit of the home.
  • the main electricity supply controller 3 operates to disconnect the electricity distribution circuit (or load circuit) from the mains supply in the event of a fault condition, and also operates to supply a user selected voltage level to the electricity distribution circuit (or load circuit) of the home.
  • the output of the main electricity supply controller 3 splits to supply (in this example) five household circuits. Before the electricity supply is provided to each one of these five household circuits, the electricity supply must pass through a circuit breaker 4a to 4e associated with the respective household circuit.
  • FIG. 1 b there is illustrated an electricity supply means 1 (from the mains supply) which is coupled to an electricity meter 2, which, in turn, is coupled to a mains disconnector 3.
  • Mains disconnector 3 is arranged to supply the entire electricity distribution circuit of the home. The mains disconnector 3 operates to disconnect the electricity distribution circuit (or load circuit) from the mains supply in the event of a fault condition.
  • the output of the mains disconnector 3 splits to supply (in this example) five household circuits. Before the electricity supply is provided to each one of these five household circuits, the electricity supply must pass through secondary electricity supply controllers 4a to 4c each embodying the present invention and circuit breakers 4d to 4e associated with the respective household circuit.
  • electricity which is output from first secondary electricity supply controller 4a powers garage lights 5 and downstairs lights 6.
  • electricity output from the second secondary electricity supply controller 4b supplies upstairs lights 7
  • electricity output from the third secondary electricity supply controller 4c supplies outlet sockets 8a to 8c.
  • Circuit breakers 4d and 4e supply an electric oven 9 and an electric heating system 10 respectively.
  • FIG 2 illustrates the main electricity supply controller 3 in Figure 1a or secondary electricity supply controllers 4a to 4c in Figure 1 b, which comprises a control unit 11 , a power module 19 and a heat-sink 18.
  • the control unit 11 is provided with status indicators 12 to 14, a voltage-setting dial 15 and a mode switch 16.
  • the voltage-setting dial 15 allows a user to preset the voltage output from the electricity supply controller to a load circuit
  • the mode switch 16 is a three-position switch which, in its respective positions, can (i) disconnect the load circuit from the electricity supply; (ii) activate a "power-save” mode of said control unit 11 ; or (iii) de-activate (or bypass) a "power-save” mode of said control unit 11.
  • the status indicators 12 to 14 serve to indicate the status of the control unit 11 , i.e. (i) load circuit disconnected from electricity supply; (ii) "power-save” mode active; or (iii) "power-save” mode inactive.
  • the status indicators 12 to 14 are light emitting diodes (LEDs), but may be any other suitable type of indicator.
  • the control unit 11 is also provided with a first automatic actuator (not shown), in the same manner as a circuit breaker, which operates to move said mode switch 16 to a disconnect position in the event of a power surge.
  • control unit 11 is provided with a second automatic actuator, which is arranged to move said mode switch 16 to a "power-save" inactive (or bypass) position in the event of a fault, or where the ambient temperature is too high for safe operation of the electricity supply controller 3 (4a to 4e).
  • first and second actuators are separate mechanisms, but in an alternative embodiment, they may be the same mechanism.
  • FIG. 3 illustrates in operational block diagram form the controller of
  • Figure 2 which comprises an input connection element A for receiving a supply current from an electricity supply, an interruption element B for interrupting the supply of current through the controller in the event of a fault condition, an element C for modifying a characteristic of the electricity supply so as to achieve some power saving, an element D allowing for bypassing of the modifying element C as required, and an output connection element E for outputting the electricity supply to a load.
  • Figure 4 illustrates the internal electronic circuit of the control unit 11.
  • the unit is coupled to live and neutral lines 19 and 21 respectively, of an electricity supply, and is arranged to output a controlled electricity supply voltage to a load circuit via live and neutral output terminals 20 and 22 respectively.
  • a power supply unit 23 is provided in said control unit 1 1 to power the respective circuit elements of the control unit 1 1.
  • the power supply lines of the control unit 1 1 are not, however, shown in this figure in order to aid understanding.
  • Isolator switch 24 is located in the live electricity line prior to a voltage modulator 25.
  • the isolator switch 24 is arranged to disconnect (or "isolate") the voltage modulator 25 from the electricity supply in the event of a fault or overload condition. Such disconnection of the voltage modulator 25 from the electricity supply prevents damage both to the voltage modulator 25 and to the equipment connected to the load circuit.
  • the voltage modulator 25 is arranged to output a steady voltage level (VOUT) in dependence on a user specified voltage level (VSETPOINT)-
  • VSETPOINT user specified voltage level
  • the output of said voltage modulator 25 is coupled to a current transformer 26 which, in turn, outputs the consistent voltage level (V O u ⁇ ) to said live output terminal 20.
  • a feedback circuit is provided between the input and output terminals (not shown) of said voltage modulator 25.
  • a voltage modulator bypass switch 27 is provided in this circuit, and is arranged either to (i) cause electrical current flow through said control unit 1 1 to bypass the voltage modulator 25, or (ii) cause the electrical current through said control unit 1 1 to flow via the voltage modulator 25.
  • a first comparator 28 comprises two input terminals, the first of which is coupled to an output of said voltage modulator 25 and arranged to receive the steady voltage level (VOUT). and the second of which is arranged to receive a reference voltage (V M
  • the output of said first comparator 28 is arranged to control an actuator (not shown) to operate said voltage modulator bypass switch 27. Therefore, in the event of a fault condition where the steady voltage level (VOUT) falls below a predetermined level (i.e. below the reference voltage VMIN), the output signal from the first comparator 28 ensures that the voltage modulator bypass switch 27 is in the "power-save" inactive (or bypass) state, and the electrical current flow through the control unit 11 bypasses the voltage modulator 25 by means of the feedback circuit.
  • the reference voltage may be a maximum voltage (V M AX), which the steady voltage level (V O u ⁇ ) must not exceed.
  • a second comparator 29 comprises two input terminals, the first of which is arranged to receive an output of said voltage modulator 25 and to receive the steady voltage level (VOUT). and the second of which is arranged to receive a user specified voltage level (VSET P O I NT).
  • the user specified voltage level (VSETPOINT) can be varied by a user via operation of the voltage-setting dial 15 of Figure 2.
  • a signal output by said second comparator 29 is supplied to said voltage modulator 25 to control the operation thereof.
  • the control unit 11 is also provided with a third comparator 30, the first input terminal of which is arranged to receive a signal indicating the value of the current (l O u ⁇ ) through said current transformer 26, and the second input terminal of which is arranged to receive a reference current value (IMAX)- A signal output by said third comparator is arranged to control an actuator (not shown) to operate said isolator switch 24. Therefore, in the case where an overload condition occurs (i.e.
  • the third comparator 30 outputs a signal indicative of this fault, which causes said actuator (not shown) to move said isolator switch 24 to a position whereby the voltage modulator 25 (and the load circuit) are disconnected from the electricity supply.
  • the actuators are of a known type used in circuit breakers.
  • the actuators are spring-loaded and are held in a position by a latch, which is triggered when one of the above mentioned fault conditions occurs.
  • the actuators further comprise an electro-mechanical means which is arranged to reset the actuator when the fault condition is cleared.
  • Figure 5 illustrates the internal electronic circuit of the control unit 11 in a second embodiment. Like reference numerals are used to refer to parts which correspond to parts previously described in relation to Figure 3.
  • the control unit 11 of Figure 5 is arranged to monitor the "power factor" of the load and adjust the phase angle between the voltage and current by modulating the voltage waveform delay.
  • control unit 11 of the second embodiment is similar to the control unit of the first embodiment, except that in this circuit, a switching device 31 replaces the voltage modulator 25, and a alternative second comparator 32 replaces the second comparator 29 of the first embodiment.
  • the alternative second comparator 32 comprises two input terminals, the first of which is arranged to receive an output of said switching device 31 , and the second of which is arranged to receive a signal indicating the value of the current (IOUT) through said current transformer 26.
  • control unit 11 is arranged to monitor power factor by way of the alternative second comparator 32 connected between the output voltage and output current waveforms.
  • the output of the alternative second comparator 32 is used to drive the switching device 31 to adjust the voltage waveform delay.
  • control unit 11 As the power factor decreases the control unit 11 is arranged to increase the phase angle by increasing the voltage waveform delay. As the power factor increases, the control unit 11 is arranged to reduce the phase angle by decreasing the voltage waveform delay.
  • the switching device 31 comprises a thyristor, but in alternative arrangements, other suitable means could be substituted in place of the thyristor.
  • the actuator which controls the voltage modulator bypass switch 27 is arranged such that in normal operation, it is latched in the "power-save” active mode. If the electricity supply to the control unit 11 is interrupted, the actuator which controls the voltage modulator bypass switch 27 is arranged to "trip" to the "power-save” inactive (or bypass) mode.
  • Such an arrangement is advantageous in that during such times when power supplied to the control unit 11 is interrupted and then restored, the control unit 11 requires more power during the "power-up" phase immediately after the restoration of power. During this phase, the control unit 11 draws the maximum current from its power supply and it is, therefore, beneficial if the control unit 11 is devoting all of its resources to achieving operational readiness, so that such a state is reached in as short a time as possible. Therefore, by bypassing the voltage modulator 25, the control unit 11 achieves this goal. Once operational readiness has been achieved, the actuator then resets itself to the "power-save" active mode.
  • control unit 11 includes a temperature sensor, which is arranged to detect for a high operating temperature in said control unit 11. Detection of a high operating temperature indicates a fault, and the temperature sensor may be arranged to operate an actuator to engage the "power-save" inactive mode in such circumstances. Once such a fault has cleared (as indicated by a signal output by the temperature sensor), the actuator resets to the "power-save" active mode.
  • the actuators are arranged such that in the event of power-loss to the control unit 11 , the control unit 11 defaults to a certain state (e.g. disconnected from mains electricity supply).
  • the actuators are controlled by a remote system, thereby allowing remote control and monitoring of the control unit 11.
  • the voltage modulator 25 may comprise a voltage control device as disclosed in the applicant's previous application number WO 2004/004107.
  • the voltage control device comprises means for comparing the output voltage of the voltage control device with a predetermined voltage, and generating a comparison signal.
  • the voltage control device also comprises a means to adjust the output voltage in response to the comparison signal, said means being connected to the input and output of the voltage control device.
  • the output voltage is maintained substantially at the predetermined voltage.
  • the means to adjust the output voltage may comprise means to delay the onset of the rise of output voltage within one half-cycle, where the means to delay is preferably a thyristor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)

Abstract

L'invention se rapporte à un contrôleur d'alimentation en électricité destiné à empêcher que des surtensions n'endommagent un équipement électrique et destiné à réduire la consommation d'électricité, lequel peut être autonome et dans sa propre enceinte, installé le long d'un dispositif de déconnexion d'électricité du secteur, installé dans une unité de consommateur ou dans un wattmètre. Le dispositif est agencé pour se connecter à une alimentation en électricité, comprenant : (i) un moyen de connexion d'entrée, agencé pour se connecter à l'alimentation en électricité, (ii) un moyen de connexion de sortie destiné à fournir en sortie une alimentation en électricité à une charge et (iii) un moyen situé entre lesdites entrée et sortie, destiné à modifier une caractéristique de l'alimentation en électricité. Un exemple du moyen destiné à modifier la caractéristique de ladite alimentation en électricité est un moyen destiné à limiter la tension de sortie à un niveau fixe. Le contrôleur est agencé en vue d'une connexion à une tension d'alimentation monophasée et/ou à une tension d'alimentation polyphasée.
PCT/GB2005/004105 2004-10-26 2005-10-25 Controleur d'alimentation en electricite WO2006046019A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0423787A GB0423787D0 (en) 2004-10-26 2004-10-26 Electricty supply controller
GB0423787.1 2004-10-26

Publications (1)

Publication Number Publication Date
WO2006046019A1 true WO2006046019A1 (fr) 2006-05-04

Family

ID=33515588

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2005/004105 WO2006046019A1 (fr) 2004-10-26 2005-10-25 Controleur d'alimentation en electricite

Country Status (2)

Country Link
GB (1) GB0423787D0 (fr)
WO (1) WO2006046019A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5754036A (en) * 1996-07-25 1998-05-19 Lti International, Inc. Energy saving power control system and method
EP0849655A2 (fr) * 1996-12-18 1998-06-24 Young Chun Chung Dispositif de commande de la puissance à courant alternatif
US6295215B1 (en) * 2000-04-06 2001-09-25 Powerware Corporation AC power supply apparatus with economy mode and methods of operation thereof
US6327162B1 (en) * 1995-01-13 2001-12-04 General Electric Company Static series voltage regulator
WO2004004107A1 (fr) * 2002-06-27 2004-01-08 Presidio Power Limited Procede et dispositif de regulation de tension
US20040140720A1 (en) * 2003-01-22 2004-07-22 Daniel Liu Digital controlled power regulation device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6327162B1 (en) * 1995-01-13 2001-12-04 General Electric Company Static series voltage regulator
US5754036A (en) * 1996-07-25 1998-05-19 Lti International, Inc. Energy saving power control system and method
EP0849655A2 (fr) * 1996-12-18 1998-06-24 Young Chun Chung Dispositif de commande de la puissance à courant alternatif
US6295215B1 (en) * 2000-04-06 2001-09-25 Powerware Corporation AC power supply apparatus with economy mode and methods of operation thereof
WO2004004107A1 (fr) * 2002-06-27 2004-01-08 Presidio Power Limited Procede et dispositif de regulation de tension
US20040140720A1 (en) * 2003-01-22 2004-07-22 Daniel Liu Digital controlled power regulation device

Also Published As

Publication number Publication date
GB0423787D0 (en) 2004-12-01

Similar Documents

Publication Publication Date Title
US7446437B2 (en) Apparatus and method for preventing an electrical backfeed
US10998717B2 (en) Intelligent power strip with management of bistable relays to reduce current in-rush
US20180299945A1 (en) Parallel redundant power distribution
US20120078428A1 (en) Smart metering device with phase selector
WO2015197471A1 (fr) Disjoncteur sélectif
US10523012B2 (en) Safety device for photovoltaic installations
JP2011010393A (ja) 直流用分岐回路保護装置
AU2008215258B2 (en) An overvoltage and/or undervoltage protection device
CN108933431B (zh) 用于核电站盘车电机的启动保护电路及启动保护系统
EP2244353B1 (fr) Dispositif d'économie d'énergie
US20140321176A1 (en) Systems and methods for electronic tru input protection
US20240339824A1 (en) Pwm control for power distribution circuit interrupting devices
CN110138076B (zh) 一种二进线一母联自动投切控制系统及方法
CN111696829B (zh) 根据控制部件导通或阻断状态供电或不供电的电气设备
US20240155801A1 (en) Power distribution using hydra cable systems
WO2006046019A1 (fr) Controleur d'alimentation en electricite
GB2576715A (en) Capacitive unit for local power factor correction and system comprising multiple capacitive units
WO2011092475A1 (fr) Appareil de régulation de tension
SK1622015U1 (sk) Spôsob a zariadenie na napájanie jednofázovej elektrickej zásuvky pri výpadku jednej fázy alebo viacerých fáz
US20210184452A1 (en) Virtual electronic circuit breaker
EP2575152B1 (fr) Dispositif de prévention d'arc portable
JP5707184B2 (ja) 配電システム
KR20190104506A (ko) 부하 쇼트 감시 기능을 가진 자동 전원 절체 제어장치를 이용한 자동 전원 절체방법
CN101800425A (zh) 环境调节系统
RU2754350C1 (ru) Устройство защиты силового трансформатора

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV LY MD MG MK MN MW MX MZ NA NG NO NZ OM PG PH PL PT RO RU SC SD SG SK SL SM SY TJ TM TN TR TT TZ UG US UZ VC VN YU ZA ZM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SZ TZ UG ZM ZW AM AZ BY KG MD RU TJ TM AT BE BG CH CY DE DK EE ES FI FR GB GR HU IE IS IT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 05807704

Country of ref document: EP

Kind code of ref document: A1