WO2001092978A1 - Mecanisme de commande et changeur de prise comprenant un tel mecanisme de commande - Google Patents

Mecanisme de commande et changeur de prise comprenant un tel mecanisme de commande Download PDF

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Publication number
WO2001092978A1
WO2001092978A1 PCT/SE2001/001058 SE0101058W WO0192978A1 WO 2001092978 A1 WO2001092978 A1 WO 2001092978A1 SE 0101058 W SE0101058 W SE 0101058W WO 0192978 A1 WO0192978 A1 WO 0192978A1
Authority
WO
WIPO (PCT)
Prior art keywords
driving mechanism
supervision
control unit
mechanism according
setting
Prior art date
Application number
PCT/SE2001/001058
Other languages
English (en)
Inventor
Yngve Petersson
Helge ÖSTERHOLM
Lars Eriksson
Peter Hidman
Original Assignee
Abb Ab
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 Abb Ab filed Critical Abb Ab
Priority to AU2001260889A priority Critical patent/AU2001260889A1/en
Publication of WO2001092978A1 publication Critical patent/WO2001092978A1/fr

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Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
    • G05F1/147—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0005—Tap change devices
    • H01H9/0027—Operating mechanisms
    • H01H9/0033—Operating mechanisms with means for indicating the selected tap or limiting the number of selectable taps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H2009/0083—Details of switching devices, not covered by groups H01H1/00 - H01H7/00 using redundant components, e.g. two pressure tubes for pressure switch

Definitions

  • ABB AB A driving mechanism and a tap-changer comprising such a driving mechanism
  • the present invention relates to a driving mechanism according to the preamble of claim 1 and a tap changer comprising such a driving mechanism.
  • a tap changer is normally used for voltage regulation in high-voltage de- vices.
  • a tap changer comprises mechanical contacts, which can be moved between different terminals of a regulating winding for
  • the voltage regulation is accomplished by choice of a suitable terminal of the regulating winding of the transformer.
  • the different terminals can be said to constitute different switching positions for the contacts of the tap changer.
  • Mechanical tap changers normally comprise a stepping selector manoeuvred from a driving mechanism via a drive shaft.
  • the driving mechanism is arranged at a distance from the tap changer, manoeuvring movements from the driving mechanism being transferred to the stepping selector via a number of shafts and angular gears.
  • the driving mechanism is attached to the external casing of the tap changer, manoeuvring movements from the driving mechanism being transferred to the stepping selector of the tap changer via a shaft extending directly from the driving mechanism through said casing.
  • the driving mechanism normally comprises an electric motor and a gearing arrangement for transferring the rotational movements of the motor to a rota- tional movement of a drive shaft.
  • the drive shaft drives a Geneva gear, which is arranged in the tap changer and which converts the rotational movement of the drive shaft to a stepping movement for step by step movement of the contacts of the tap changer between different predetermined positions in relation to the terminals of the regulating winding. In the following, these positions are denominated "switching positions".
  • the driving mechanism further comprises a pointer, which is controlled via a mechanical arrangement in dependence on the setting movements of the driving mechanism in order to indicate the present setting position of the driving mechanism.
  • the driving mechanism further comprises a member for generating electrical position indicating signals, which member comprises a switch arm that is being moved between different switching positions on a printed circuit card in dependence on the setting movements of the driving mechanism.
  • An electric signal with for instance a voltage or a current intensity that depends on the position of the switch arm is emitted from the printed circuit card.
  • An individual printed circuit card can only emit a certain type of signals, for instance analogue signals with given voltage levels or analogue signals with given current intensities, and if the user wants to obtain several different types of signals indicating the setting position of the driving mechanism, several separate and differently design printed circuit cards with associated switching arm have to be applied in the driving mechanism.
  • the position indicating signals are, for instance via circuit lines, transmitted to a supervision centre from which supervision and control of the driving mechanism is carried out.
  • the control of the driving mechanism is carried out by manoeuvring of contactors arranged in the driving mechanism, which contactors are switched in in different ways for driving of the motor of the driving mechanism in one or the other rotational direction.
  • the control is either carried out locally by manual manoeuvring of the contactors or by remote manoeuvring of these.
  • the object of the present invention is to achieve a driving mechanism which makes possible a facilitated and improved supervision and control of the driving mechanism, with the possibility to adapt the supervision and control in a simple manner depending on the requirements and needs of the user.
  • the object of the invention is achieved by the features defined in the characterizing part of the subsequent claim 1 .
  • the supervision and control being carried out by means of an electronic supervision and control unit, it will in a simple manner be possible to obtain supervision signals adapted to the needs of the user.
  • the supervision and control unit can be designed so as to, based on the sensor signals received from the position sensor, generate output signals of desired form representing the setting position, for instance analogue signals with given voltage levels/current intensities or BCD/binary coded digital signals.
  • Conventional driving mechanisms comprise a number of mechanical supervision and safety devices.
  • the driving mechanism will comprise fewer parts exposed to wear. This implies an increased service life and reliability in operation of the driving mechanism.
  • Electronic supervision and safety functions can also constitute complements to the existing mechanical functions, whereby redundancy and improved safety is obtained in the system.
  • the su- pervision and control unit is programmable. Owing to the pro- grammability, the form of the position indicating output signals can easily be adapted to the requirements of the user without any time-consuming and costly operations, such as exchange or installation of position indicating members, having to be per- formed in the equipment of the driving mechanism.
  • the programmable supervision and control unit also makes it possible to adjust the control of the manoeuvring means of the driving mechanism after need.
  • the supervision and control unit comprises means for comparison of the setting position detected by the position sensor with an expected setting position, the supervision and control unit being adapted to activate a warning function and/or prevent the setting positions of the manoeuvring means, and/or adjust the control of the manoeuvring means in case of an established divergence between the detected and the expected setting position exceeding a given limit value.
  • the supervi- sion and control unit is adapted to activate a warning function in case of a divergence exceeding a first limit value but being below a second limit value, and to prevent the setting manoeuvres of the manoeuvring means in case of a divergence exceeding the second limit value.
  • a warning function in case of a divergence exceeding a first limit value but being below a second limit value
  • the setting manoeuvres of the manoeuvring means in case of a divergence exceeding the second limit value.
  • the supervision and control unit is adapted to measure the time consumption for the movement between two setting positions and to interrupt and/or prevent the setting manoeuvres of the manoeuvring means if the measured time consumption is below a given minimum value or exceeds a given maximum value.
  • the supervision and control unit is adapted to measure the time consumption for the movement between two setting positions and to interrupt and/or prevent the setting manoeuvres of the manoeuvring means if the measured time consumption is below a given minimum value or exceeds a given maximum value.
  • the supervision and control unit is provided with means for manual regulation of the function of the supervision and control unit and indicating members, preferably in the form of a display, for presentation of information from the supervision and control unit.
  • indicating members can for instance be used for presentation of information indicating the present position of the tap changer, the number of performed setting operations, the type of setting manoeuvre carried out for the time being, the humidity and temperature level in the driving mechanism etc.
  • the user can also read error messages via the indicating member in case of functional defects in the driving mechanism.
  • a non-contact sensor connected to the supervision and control unit is applied in connection to the crank socket of the driving mechanism, the supervision and control unit being adapted to prevent a driving of the motor of the driving mechanism when the sensor indicates that the crank is attached to the socket.
  • Conventional driving mechanisms comprise a mechanical mem- ber, which when the crank is attached to the socket is influenced to prevent the driving of the motor.
  • the manoeuvring crank is normally used very seldom and it can sometimes pass several years without the crank being used. These long inactive periods of the mechanical member implies that the member runs the risk of jamming up and therefor not functioning in case of a possible attachment of the crank in the socket.
  • the non-contact sensor is suitably complementary to the conventional mechanical member, whereby re- dundancy and a further improved safety is obtained.
  • the invention also relates to a tap changer according to claim 31.
  • Fig 1 is a front view of a driving mechanism according to an embodiment of the invention, illustrated without casing ,
  • Fig 2 is a detail view of the driving mechanism according to fig 1 , however with the supervision and control unit dis- mounted
  • Fig 3 is a view from below of a part of the manoeuvring means of the driving mechanism
  • Fig 4 is a view obliquely from the front of the manoeuvring means of the driving mechanism
  • Fig 5 is a sectional view of a part of the manoeuvring means of the driving mechanism and its mechanical position indicator
  • Fig 6 is a schematical illustration of an electronic circuit which can be included in a driving mechanism according to the invention.
  • Fig 1 shows a driving mechanism for tap changers, according to a preferred embodiment of the invention.
  • the equipment of the driving mechanism shown in fig 1 is intended to be enclosed in a driving mechanism casing (not shown) with a door which is provided with hinges and possible to open.
  • the driving mechanism comprises manoeuvring means 2, having a design known per se, for transferring manoeuvring movements from the driving mechanism to a tap changer co-operating with the driving mechanism.
  • the manoeuvring means 2 comprise an electric motor 3, which is driven by means of electric current supplied via a motor switch 4 and a set of contactors 5.
  • the contactors 5 are in the electric circuit arranged between the motor 3 and the motor switch 4.
  • the contactors 5 are two in number and are arranged in such a way that the motor rotates in one direction when one of the contactors is drawn and in the opposite direction when instead the other contactor is drawn.
  • the tap changer is subjected to movements influencing the contacts of the tap changer to take a position in relation to the terminals of the regulating winding resulting in an increased voltage level in the high- voltage device controlled by the tap changer.
  • the tap changer is subjected to movements influencing the contacts of the tap changer to take a position in relation to the terminals of the regulating winding resulting in a decreased voltage level in said high- voltage device.
  • the motor switch 4 comprises means for protecting the motor 3 against short-circuiting and over-current.
  • the manoeuvring means 2 further comprise a gearing arrangement 6 for transferring the rotational movements of the motor to a rotational movement of and output drive shaft 7 of the driving mechanism.
  • Fig 3 shows a part of the gearing arrangement 6 seen from below.
  • the gearing arrangement 6 comprises a belt pulley 8 provided with a belt gear 9, which belt pulley is mounted fixed in rotation to a shaft 10, which is rotatably mounted in the driving mechanism.
  • the rotational movements from the drive shaft of the motor is transferred to the belt gear via a driving belt 1 1 .
  • the driving mechanism 1 can also be driven manually by means of a crank. In case of manual driving, a releasable crank is applied in the crank socket 12.
  • the crank socket 12 is connected to a shaft 13, which is put in rotation by means of the crank.
  • the rotational movements of the shaft 13 is transferred to the output shaft 7 of the driving mechanism via a bevel gear unit 14.
  • This bevel gear unit comprises a first bevel gear wheel 15, which is attached to the shaft 13 and which co-operates with a second bevel gear wheel 16 attached to the output shaft 7.
  • fig 4 the other parts of the gear arrangement 6 are shown.
  • a smaller helical gear 17 is attached, which co-operates with a larger helical gear 18 attached to the output shaft 7 of the driving mechanism.
  • a smaller helical gear 19 is also attached to the output shaft 7 and accompanies the output shaft 7 in its rotational movements. Said rotational movements are transferred to a cam disc 21 via a larger helical gear 20, which is mounted fixed in rotation to the cam disc 21 and co-operates with the smaller gear 19.
  • the gear 20 and the cam disc 21 are connected fixed in rotation to a shaft 22 (see fig 5), which shaft 22 is rotatably mounted in the driving mecha- nism.
  • the shaft 22 is included in a Geneva drive 23, which drives a Geneva wheel 24.
  • the Geneva wheel is attached fixed in rotation to a shaft 25, which is rotatably mounted in the driving mechanism.
  • the rotational movements of the Geneva wheel 24 and the shaft 25 are transferred to a mechanical position in- dicator 26, via a bevel gear unit 27.
  • This bevel gear unit 27 comprises a first bevel gear wheel 28 attached to the upper end of the shaft 25 and a second bevel gear wheel 29 attached to one end of a shaft 30.
  • the mechanical position indicator 26 is attached to the other end of said shaft 30.
  • the driving mechanism is driven in such a way that the output shaft 7 rotates five turns during a setting operation, whereas the Geneva wheel 24 turns 10° during a setting operation.
  • the driving mechanism 1 according to the illustrated embodiment is adapted to regulate the tap changer between 36 different switching positions and the driving mechanism consequently has 36 different setting positions.
  • the present setting position can be read visually by means of the position indicator 26.
  • the manoeuvring means of the driving mechanism further include a brake arrangement 31 , which appears most clearly from fig 4.
  • the brake arrangement comprises an angled arm 32, which is rotatably attached to a holder 33 via a pivot axle 34.
  • a cam disc 35 is rotatably mounted.
  • the cam disc 35 rests against the upper surface of the cam disc 21 and is pressed against this surface by means of a spring 49, which is arranged at the end of the vertical section of the arm 32.
  • a first brake disc 36 is attached to the horizontal section of the arm 32 and co-operates with a second brake disc 37, which is connected fixed in rotation to the shaft 10.
  • the cam disc 21 is at its upper surface provided with recesses 38, which are arranged to receive the cam disc 35 at certain rotary positions of the cam disc 21 .
  • recesses 38 are arranged to receive the cam disc 35 at certain rotary positions of the cam disc 21 .
  • the mechanical arrangement which has been described so far with reference to fig 1 -5 is known per se and is included in driving mechanisms available on the market.
  • a switch arm is attached to the lower end of the shaft of the Geneva wheel, which switch arm is moved between different switching positions on a printed circuit card in dependence on the setting movements of the driving mechanism.
  • an angle sensor 39 is instead arranged at the lower end of the shaft 25 of the Geneva wheel, as can be seen in fig 2 and 3.
  • the angle sensor 39 should be an absolute angle sensor and is preferably a re- solver.
  • the angle sensor 39 is electrically connected to an electronic supervision and control unit 40 and delivers sensor signal representing the rotary position of the shaft 25 to this supervision and control unit 40.
  • the supervision and control unit 40 comprises electronics, preferably in the form of a programmable microprocessor, which is adapted to process the received sensor signals and convert these to desired output signals indicating the setting position of the driving mechanism and thereby indirectly the switching position of the tap changer.
  • the output signals can be emitted in any desired form depending on the need and desire of the user, for instance in the form of analogue signals with different voltage levels, where the present voltage level depends on the detected setting position.
  • the output signals can also be in the form of analogue signals with current in- tensities which vary in dependence on the detected setting position.
  • the supervision and control unit 40 is preferably adapted so that the voltage interval or the current intensity interval, within which the output signals are located, is adjustable.
  • the supervision and control unit 40 can also be adapted to deliver position indicating output signals in the form of BCD-coded or binary coded digital signals.
  • the supervision and control unit 40 can be adapted to deliver different types of output signals via different outputs, and the type of output signal delivered via a certain output can preferably be controlled by means of the electronics in the unit 40.
  • Other types of position indicating out- put signals than the one mentioned above are also possible.
  • the unit 40 can for instance also comprise means for generating position indicating signals similar to the ones obtained from a multi-position switch off the type conventionally included in a driving mechanism.
  • the supervision and control unit 40 is in the later case provided with output lines, the number of which depends on the number of setting positions, the unit 40 being adapted to apply current to a certain of these lines depending on the present setting position of the driving mechanism.
  • the supervision and control unit 40 can also comprise means for generating position indicating signals imitating stepped signals from a potentiometer sensor.
  • a possible embodiment of such a means 41 is shown in fig 6.
  • the potentiometer signal from a potentiometer with 63 positions and comprising 62 resis- tors and 62 contacts is emitted by means of 12 resistors Rsi-Rse and R « ⁇ -R ⁇ ⁇ and 12 relay contacts S ⁇ -S 6 and K ⁇ -K 6 .
  • the resistors Rs ⁇ - si6 mutually have different resistance values, whereas the resistors R S ⁇ and R K1 , and so forth, have the same resistance value.
  • the resistors Rsi-Rs ⁇ form together with the contacts S f S 6 a circuit 42, which is identical with the circuit formed by the resistors R ⁇ -R « 6 and the contacts K ⁇ Ke.
  • One circuit 42 is connected to the positive pole of a current source via the line L s
  • the other circuit 43 is connected to the negative pole of a current source via the line L .
  • Both cir- cuits 42 and 43 are further connected to a common output line L(j ⁇ -
  • the closing of the relay contacts is controlled by electronic circuits in the supervision and control unit 40 in dependence on the setting position of the driving mechanism, the relay contacts S S 6 of the circuit 42 being closed in the same way as the relay contacts K T -K 6 of the circuit 43.
  • the supervision and control unit 40 is further adapted to control the operation of the motor 3 by control of the contactors 5 in dependence on received control instructions.
  • the unit 40 further comprises means for measuring the supply voltage to the motor, the unit 40 being adapted to prevent supply of voltage to the motor 3 in case of a measured supply voltage being below a given minimum value or exceeding a given maximum value.
  • the supervision and control unit 40 is suitably adapted to supervise that the phase sequence of the supply voltage of the motor is correct and to prevent supply of voltage to the motor if the phase sequence is not correct.
  • the supervision and control unit 40 comprises an indicating member in the form of a display 45 for displaying information obtained via the electronics in the unit 40, and a number of control 46, for instance in the form of push buttons or knobs, by means of which an operator can regulate the operation of the unit 40.
  • the operator Via the controls 46, the operator can for instance instruct the supervision and control unit 40 to execute a movement of the contacts of the tap changer to a certain switching position.
  • the form the position indicating output signals delivered from the supervision and control unit 40 can also be regulated via the controls 46.
  • the controls 46 the operator can also control which type of information that is to be shown on the display 45.
  • the display 45 is suitably adapted for display of present setting position, the highest and the lowest allowed setting position, the number of performed setting operations, the number of performed setting operation since the last reset, indication that a voltage increasing or voltage reduc- ing setting operation is carried out, information that a setting operation has been interrupted, indication that emergency shutdown has been activated, indication about too high or too low supply voltage to the motor, different types of error messages etc.
  • the supervision and control unit 40 is suitably also so adapted that it via the display and the controls 46 is possible to put the driving mechanism 1 into testing state.
  • the supervision and control unit 40 suitably comprises means for comparing the setting position detected by the angle sensor 39 with an expected setting position corresponding to the setting position that has been ordered, for instance by an operator via the controls 46.
  • the supervision and control unit 40 is adapted to active a warning function and/or prevent the setting manoeuvres of the manoeuvring means by not allowing supply of voltage to the motor 3.
  • the warning function can for instance consist of an error message on the display 45 or a light or sound signal emitted from a suitable member.
  • a divergence of said kind can for instance depend on the brake arrangement 31 not functioning correctly, for instance due to worn brake discs 36, 37.
  • the supervision and control unit 40 can in this case be adapted to active a warning function in case of a divergence exceeding a first limit value but being below a second limit value, and to prevent supply of voltage to the motor 3 in case of a divergence exceeding said second limit value. In this way a slight wear of the brake discs 36, 37, which does not cause a grave fault setting of the tap changer, can give rise to a warning, whereas a larger wear, which results in unacceptable faults of the switching position of the tap changer, automatically results in that the driving mechanism is prevented from transferring setting movements to the tap changer.
  • the supervision and control unit 40 can also be adapted to adjust the control of the motor 3 in dependence on an established divergence between detected and expected setting position so as to thereby compensate for e.g. worn brake discs 36, 37.
  • the driving mechanism 1 is settable between two given end positions, which end positions preferably can be regulated by the operator via the controls 46.
  • the supervision and control unit 40 is in this case adapted to interrupt the supply of voltage to the motor 3 when the unit 40 via the angle sensor 39 gets information that one of the end positions has been passed.
  • the supervision and control unit 40 can further be adapted to measure the time consumption for the movement between two setting positions detected by the angle sensor 39, the unit 40 being adapted to interrupt the supply of voltage to the motor 3 if the motor is still energised when an ordered setting position is not attained within a given maximum time.
  • the supervision and control unit 40 is further adapted to prevent supply of voltage to the motor 3, and thereby prevent a new setting operation, if an ordered movement between two setting position takes place faster than a given minimum time.
  • the supervision and control unit 40 is suitably adapted to activate a warning function or to display an error message if the measured time consumption is below the given minimum value or exceeds the given maximum value.
  • the supervision and control unit 40 is suitably adapted to pursue a setting manoeuvre, which was interrupted due to loss of voltage in the supply lines to the motor 3 or the unit 40, when voltage is re-established.
  • the unit 40 is further suitably adapted to register the total number of performed setting operations and where appropriate the number of performed setting operations since the last reset, the unit 40 in the later case comprising means for executing said reset.
  • the supervision and control unit 40 preferably comprises means for calibration of the angle sensor 39, either automatically or when a calibration is ordered by the operator for instance via the controls 46.
  • the supervision and control unit 40 is supplied with supply volt- age via a circuit breaker 47 and a supplying device 48, which supplying device 48 converts input voltages in the form of high- voltage alternating or direct voltages, for instance 100-240 VAC (50 and 60 Hz) and 1 10-220 VDC, to output voltages in the form of low-voltage direct voltages, for instance 5 VDC and 24 VDC.
  • This supplying device 48 consequently constitutes a universal voltage converter and it is suitably provided with filter constituting an EMC-barrier for protecting the electronics of the supervision and control unit from line surges.
  • the supplying device 48 is located behind the supervi- sion and control unit 40, as illustrated in fig 2 where the driving mechanism 1 is shown with the supervision and control unit 40 dismounted.
  • a further supplying device in the form of a universal voltage converter is suitably arranged in the supply main to the motor 3.
  • This universal voltage converter can for in- stance be adapted to convert the input voltages 1 10-220 VDC and 100-575 VAC (50 and 60 Hz) to the output voltage 3 x 400 VAC (50 Hz).
  • Motor protectors such as overload protector, under voltage protector etc can with advantage be integrated in the universal voltage converter.
  • the contactors 5 can also be integrated in this universal voltage converter.
  • a mechanically activatable breaker is arranged in a way known per se, which when a manoeuvre crank is attached to the socket is influenced to break the voltage supply to the motor 3.
  • the mechanically effectable breaker is supplemented by a non- contact sensor 50, which is schematically indicated in fig 4.
  • This non-contact sensor 50 can for instance be of inductive or optical type.
  • the sensor 50 is connected to the supervision and control unit 40 and emits sensor signals to this when the manoeuvre crank is placed in the socket 12.
  • the supervision and control unit 40 is in this case adapted to prevent supply of voltage to the motor 3 when it receives information from the sensor 50 that the crank is placed in the crank socket. In this way a redundance system is obtained for preventing motor operation when the crank is applied in the socket 12. It is of course possible to use only a non-contact sensor 50 and consequently omit the mechanically effectably breaker.
  • a humidity sensor 51 is arranged in the driving mechanism for measur- ing the humidity level inside the driving mechanism casing.
  • the driving mechanism is further also comprising a temperature sensor 52, which is adapted to measure the temperature level inside said casing.
  • These sensors 51 , 52 are connected to the supervision and control unit 40, which can be adapted to activate a warning function in case of a measured humidity and/or temperature level being below a given minimum value or exceeding a given maximum value.
  • the supervision and control unit 40 can also be adapted to control humidity and/or temperature adjusting means 53 in dependence on measured humidity and/or tem- perature level in order to maintain a humidity and/or temperature level inside the driving mechanism casing favourable for the driving mechanism.
  • the humidity and/or temperature adjusting means 53 can as well be integrated in the supervision and control unit 40.
  • the supervision and control unit 40 can further be adapted to transmit information via a wireless connection to an indicating member or a warning device located at a distance from the driving mechanism. Said information can also be sent from the supervision and control unit 40 to a supervision centre by means of for instance a data buss, optical cable etc.
  • the unit 40 is preferably also adapted to receive control data for adjustment of different parameters and/or control instructions for execution of setting operations via said wireless connection, data buss, optical cable etc.
  • the supervision and control unit 40 is suitably divided into a number of modules, each comprising electronic circuits for different types of functions.
  • the supervision and control unit 40 is in the illustrated example divided into two modules 40a, 40b.
  • a first module 40a comprises the electronics of most vital importance for the supervision and control of the driving mechanism, such as for instance electronics for controlling the motor 3, processing of the signals from the angle sensor 39 into position indicating signals, supervising the function of the manoeuvring means 2 and activating alarms and preventing motor operation in case of a detected functional defect etc.
  • the display 45 and the controls 46 are in the illustrated embodiment arranged in the first module 40a.
  • a second module 40b can for instance comprise means for processing the position indicating signals from the first module 40a into position indicating output signals in the form of analogue signals with different voltage levels/current intensities and BCD- coded or binary coded digital signals.
  • the second module 40b can also comprise electronics for imitating the signals from a position indicator of the multi-position breaker type, which is often used for parallel control of the driving mechanism, electronics for analysing the follow-up signal during parallel control of the driving mechanism, electronics for imitating the signals from a position indicator of potentiometer type etc.
  • the functions of the second module 40b can be divided into separate sub-modules.
  • the other module 40b comprises in the illustrated example four such sub-modules 63-66, which are enclosed in a metal case 67.
  • a field buss which makes it possible to add further sub-modules for, upgrading of the driving mechanism 1 runs between the sub- modules 63-66.
  • the first module 40a is adapted to supervise that the second module 40b is operating, for instance by supervision of the supply voltage to the second module, and to prevent the setting manoeuvres of the manoeuvring means, for instance by switching off the motor breaker 4, in case of a registered functional disorder.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Electric Motors In General (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne un mécanisme de commande (1) d'un changeur de prise comprenant un moyen (2) permettant d'actionner le changeur de prise entre différentes positions de commutation, et un élément permettant de détecter une position de réglage du mécanisme de commande correspondant à une position de commutation du changeur de prise par un moyen d'actionnement (2). L'élément de détection comprend un détecteur de position (39) conçu pour émettre des signaux à une unité de supervision et de commande électrique (40), l'unité de supervision et de commande (40) étant conçue pour traiter les signaux en signaux de sortie représentant la position de réglage et/ou la position de commutation. L'unité de supervision et de commande (40) est également conçue pour commander le moyen d'actionnement (2) en fonction des instructions de commande reçues. L'invention concerne enfin un changeur de prise comprenant un mécanisme de commande du type susmentionné.
PCT/SE2001/001058 2000-05-26 2001-05-15 Mecanisme de commande et changeur de prise comprenant un tel mecanisme de commande WO2001092978A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001260889A AU2001260889A1 (en) 2000-05-26 2001-05-15 A driving mechanism and a tap-changer comprising such a driving mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0001985A SE519492C2 (sv) 2000-05-26 2000-05-26 Manöverdon samt lindningskopplare innefattande ett sådant
SE0001985-1 2000-05-26

Publications (1)

Publication Number Publication Date
WO2001092978A1 true WO2001092978A1 (fr) 2001-12-06

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PCT/SE2001/001058 WO2001092978A1 (fr) 2000-05-26 2001-05-15 Mecanisme de commande et changeur de prise comprenant un tel mecanisme de commande

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AU (1) AU2001260889A1 (fr)
SE (1) SE519492C2 (fr)
WO (1) WO2001092978A1 (fr)

Cited By (10)

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Publication number Priority date Publication date Assignee Title
WO2003100961A1 (fr) * 2002-05-24 2003-12-04 Maschinenfabrik Reinhausen Gmbh Entrainement par moteur
WO2005041230A1 (fr) * 2003-09-24 2005-05-06 Maschinenfabrik Reinhausen Gmbh Combinateur de reglage en charge a commande par moteur
WO2008020808A1 (fr) * 2006-08-15 2008-02-21 Abb Technology Ltd Unité de génération de signal et procédé pour générer un signal de données dans une unité de commande d'un dispositif de système d'alimentation
WO2008024048A1 (fr) * 2006-08-25 2008-02-28 Abb Technology Ltd Unité d'entraînement de moteur électrique pour des changeurs de prise en charge
WO2011029494A1 (fr) * 2009-09-08 2011-03-17 Maschinenfabrik Reinhausen Gmbh Commande d'essai pour commutateur à gradins
DE102011008394A1 (de) 2011-01-12 2012-07-12 Maschinenfabrik Reinhausen Gmbh Stufenschalter
WO2012135209A1 (fr) * 2011-03-27 2012-10-04 Abb Technology Ag Changeur de prises à système d'entraînement amélioré
WO2012135213A1 (fr) * 2011-03-27 2012-10-04 Abb Technology Ag Changeur de prises à système d'entraînement amélioré
DE102014110731A1 (de) * 2014-07-29 2016-02-04 Maschinenfabrik Reinhausen Gmbh Motorantrieb
WO2022128314A1 (fr) * 2020-12-17 2022-06-23 Maschinenfabrik Reinhausen Gmbh Dispositif adaptateur

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Publication number Priority date Publication date Assignee Title
WO1993022717A1 (fr) * 1992-04-30 1993-11-11 Maschinenfabrik Reinhausen Gmbh Commutateur a gradins a entrainement par moteur
EP0911842A2 (fr) * 1997-10-22 1999-04-28 MASCHINENFABRIK REINHAUSEN GmbH Procédé de surveillance d'un sélecteur de prises

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993022717A1 (fr) * 1992-04-30 1993-11-11 Maschinenfabrik Reinhausen Gmbh Commutateur a gradins a entrainement par moteur
EP0911842A2 (fr) * 1997-10-22 1999-04-28 MASCHINENFABRIK REINHAUSEN GmbH Procédé de surveillance d'un sélecteur de prises

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003100961A1 (fr) * 2002-05-24 2003-12-04 Maschinenfabrik Reinhausen Gmbh Entrainement par moteur
WO2005041230A1 (fr) * 2003-09-24 2005-05-06 Maschinenfabrik Reinhausen Gmbh Combinateur de reglage en charge a commande par moteur
CN100466128C (zh) * 2003-09-24 2009-03-04 赖茵豪森机械制造公司 具有电机驱动器的负载分级开关
DE112007001923T5 (de) 2006-08-15 2009-06-25 Abb Technology Ltd. Signalerzeugungseinheit und Verfahren zum Erzeugen eines Datensignals in einer Steuereinheit einer Stromversorgungseinrichtung
WO2008020808A1 (fr) * 2006-08-15 2008-02-21 Abb Technology Ltd Unité de génération de signal et procédé pour générer un signal de données dans une unité de commande d'un dispositif de système d'alimentation
EP2054902B1 (fr) 2006-08-25 2016-07-27 ABB Technology Ltd Unité d'entraînement de moteur électrique pour des changeurs de prise en charge
EP2054902A1 (fr) * 2006-08-25 2009-05-06 ABB Technology Ltd Unité d'entraînement de moteur électrique pour des changeurs de prise en charge
EP2054902A4 (fr) * 2006-08-25 2011-11-16 Abb Technology Ltd Unité d'entraînement de moteur électrique pour des changeurs de prise en charge
WO2008024048A1 (fr) * 2006-08-25 2008-02-28 Abb Technology Ltd Unité d'entraînement de moteur électrique pour des changeurs de prise en charge
WO2011029494A1 (fr) * 2009-09-08 2011-03-17 Maschinenfabrik Reinhausen Gmbh Commande d'essai pour commutateur à gradins
WO2012095155A1 (fr) 2011-01-12 2012-07-19 Maschinenfabrik Reinhausen Gmbh Changeur de prises en charge
DE102011008394B4 (de) * 2011-01-12 2014-12-31 Maschinenfabrik Reinhausen Gmbh Stufenschalter
DE102011008394A1 (de) 2011-01-12 2012-07-12 Maschinenfabrik Reinhausen Gmbh Stufenschalter
EP2691967B1 (fr) 2011-03-27 2017-03-01 ABB Technology AG Sélecteur à gradins avec un système d'entraînement amélioré
CN103563032A (zh) * 2011-03-27 2014-02-05 Abb技术有限公司 具有改进驱动系统的抽头变换器
CN103548107A (zh) * 2011-03-27 2014-01-29 Abb技术有限公司 具有改进的监视系统的抽头变换器
US9143072B2 (en) 2011-03-27 2015-09-22 Abb Technology Ag Tap changer with an improved drive system
WO2012135213A1 (fr) * 2011-03-27 2012-10-04 Abb Technology Ag Changeur de prises à système d'entraînement amélioré
CN103548107B (zh) * 2011-03-27 2016-08-24 Abb技术有限公司 具有改进的监视系统的抽头变换器
WO2012135209A1 (fr) * 2011-03-27 2012-10-04 Abb Technology Ag Changeur de prises à système d'entraînement amélioré
US9697962B2 (en) 2011-03-27 2017-07-04 Abb Schweiz Ag Tap changer with an improved monitoring system
US10840033B2 (en) 2011-03-27 2020-11-17 Abb Power Grids Switzerland Ag Tap changer with an improved monitoring system
DE102014110731A1 (de) * 2014-07-29 2016-02-04 Maschinenfabrik Reinhausen Gmbh Motorantrieb
WO2022128314A1 (fr) * 2020-12-17 2022-06-23 Maschinenfabrik Reinhausen Gmbh Dispositif adaptateur

Also Published As

Publication number Publication date
SE0001985D0 (sv) 2000-05-26
SE0001985L (sv) 2001-11-27
SE519492C2 (sv) 2003-03-04
AU2001260889A1 (en) 2001-12-11

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