CN101785171B - Device for controlling a motor-driven switch drive for a switching device comprising an integrated control module - Google Patents

Abstract

The invention relates to an arrangement for a switching gear of a switching device. The device has a control and/or display unit (1) designed as an integrated structural unit, including a control unit (4) for controlling a switching gear operated by a drive motor (M). Wherein, the control unit (4) is formed as an integrated thin-film circuit, and the integrated thin-film circuit is placed on a carrier unit formed as a circuit board. The carrier unit is designed as a universal adapter element (3.1).

Description

Device with integrated control unit for controlling a motor-driven switching gear of a switchgear

technical field

The invention relates to a control unit and a device for controlling a motor-driven switching drive of a switchgear of a switchgear, in particular a three-position disconnector of a high-voltage or medium-voltage switchgear. the

Background technique

Such devices are known, for example, as motor-driven switching drives for the electrical control of three-position switch disconnectors, such as snap mechanisms, snap energy stores or creep mechanisms. In this case, the device for controlling is used both for changing the switching device from the measured state and thereby controlling or switching it to a desired target state, as well as for blocking and indicating the switching process. In this case, the device for electrical control usually includes a control unit which has electronic, electromechanical and/or electromagnetic components, such as auxiliary contactors, timing relays, bridge rectifiers and end switches. Furthermore, the device includes an electrical display unit, for example an auxiliary switch, by means of which faults, operating states, switchgear positions are indicated. The arrangement consisting of the control unit and the auxiliary switch, as well as the separate control unit and the separate auxiliary switch, are mounted on rails with covers or on plug-in modules and are usually cabled separately from each other. the

For connecting the components and the auxiliary switches, individual wires are usually provided, which are connected to the respective component or auxiliary switch, if necessary, via flat plugs and wire end sleeves. The individual connection of such components and auxiliary switches leads to numerous different connections and wirings in a switching gear. the

As a result, a function check of the device for the control and the individual control units can only be carried out within the scope of the final inspection, i.e. according to the assembled state of the device, since the switching gear and the control unit as well as the control unit and the display unit within the control They are all electrically separated from one another and possibly spatially separated from one another, and an electrical connection which allows a function check to be carried out is established only by wiring. the

DE 102005035809 A1 discloses an electronic component comprising at least one wired electronic component and at least one control unit on a ceramic circuit board. In this case, the control unit is placed on the circuit board as an integrated thin-film circuit. the

Furthermore, DE 4209167A1 discloses a switching and monitoring unit for an electric drive, providing a semiconductor switching element arranged directly on the electric drive. the

Contents of the invention

The technical problem addressed by the invention is to provide a device for controlling a switching gear of a switching device of an electrical distribution system, which is of simple construction and in which the wiring effort is considerably reduced. the

According to the invention, the above-mentioned technical problem of the device is solved by a device for controlling a switching gear of a switching device, which device is characterized in that the control and/or display unit, which is designed as an integrated structural unit, comprises A control unit for controlling the switch gear operated by the drive motor, wherein the control unit is formed as an integrated thin-film circuit, which is placed on a carrying unit formed as a circuit board, wherein the carrying The unit is constructed as a universal adapter element, and therein, a monitoring module constructed as a semiconductor circuit is provided for self-monitoring. the

The control unit according to the invention for controlling a switching gear operated by a drive motor is designed as an integrated thin-film circuit which is placed on a carrier unit designed as a printed circuit board. the

特别是控制和指示功能。  The basic idea of the invention is based on the consideration that in order to reduce the wiring of the control unit, the control unit should be designed to be compact and versatile. For this purpose, the control unit is designed as an integrated thin-film circuit which can be prefabricated and has discrete and passive components which are placed as a thin-film circuit on a printed circuit board which can be mounted on one side or on both sides. Due to the integrated structure of the control unit, it is constructed very compactly and has small dimensions. The placement of conductor tracks arranged on one or both sides on the circuit board makes it possible to carry out the internal wiring of the control unit in a simple manner, so that expensive wiring can be avoided during the construction of the control unit. Then, only the external electrical contact connections still need to be wired. Furthermore, the functionality can be checked individually before connecting the control unit to the external connections

Especially the control and indication functions.

In a possible implementation manner, the integrated thin film circuit includes: at least one microprocessor and a display element as discrete components; and a control module configured as a semiconductor circuit; and an H-bridge circuit configured as a semiconductor circuit; and printed conductors, insulators, connectors, switching elements (relay contacts), capacitors as passive components. The design of the control unit is simple, compact and programmable by using discrete components. the

In this case, the H-bridge circuit expediently forms an internal circuit element via which the load circuit can be switched on and off and the direction of rotation of the drive motor as load can be reversed. The individual display elements are designed, for example, as light-emitting diodes. For example, if a fault occurs in the load circuit, the fault can be seen by means of the controllable display element by means of colored continuous light or flashing light. In addition, incorrect direction of rotation of the drive motor, loss of load voltage and/or non-response of the auxiliary switch can be displayed by means of the display element. the

Depending on the function and configuration of the switching device, one of the connections can be a supply connection for a load circuit and the other connection can be a supply connection for a control circuit. In this case, the power supply connections are electrically isolated. To this end, a switching element and a voltage converter (for example an inverter) are each connected upstream of the power supply connection, which are formed as relay contacts. For electrical isolation of the circuit, each voltage converter (16, 17) is preferably designed as an AC/DC and DC/DC inverter for a wide voltage range of 24V DC to 220V DC and 110V AC to 230V AC. Any intermediate voltage can also be set. the

A switching element of the switching load circuit or of the control circuit can be switched via at least one connection designed as a binary input. Preferably, the switching element is designed to be self-retaining after being switched on by means of an auxiliary winding of the internal switching power supply. the

Furthermore, the control unit can have a monitoring module designed as a semiconductor circuit for self-monitoring. In this case, the monitoring module switches off the power supply of the H-bridge circuit and the switching elements of the load circuit in the event of a fault. the

Furthermore, the response times of switching processes (for example of supply circuits and/or switching devices) can be freely programmed by means of the microprocessor and the control module. Separate monitoring of the response time of the switching process is used to protect the switching gear and the mechanics of the drive motor. Furthermore, the motor current in the case of a stalled drive motor can be limited in time by means of a programmable control. As a result, an additional motor protective switch or an automatic circuit breaker for protecting the drive motor can be dispensed with. the

The invention is particularly useful for a device for controlling a switching gear that is designed as an integrated control and/or display unit with at least one universal adapter element. An adapter element is used for the mechanical and electrical connection of the control unit and/or the display unit, which adapter element is designed as a printed circuit board and whose conductor tracks form the internal wiring of the integrated unit. Depending on the type and design of the switching gear, the control device may consist only of an integrated display unit in the case of manual actuation with an adapter element fastened thereto. In the case of a motor-driven switching gear, the device includes an integrated control and display unit with adapter element. In this case, the control unit is the same for all transmission variants, such as snap mechanisms, snap energy storage mechanisms or peristaltic mechanisms. the

In one possible embodiment, the integrated control and/or display unit comprises, as a display unit or position indicator, a switching unit on which at least two adapter elements are arranged. The switching unit is thus integrated in one structural unit. One of the adapter elements is preferably designed to accommodate the control unit. The other adapter element is designed to accommodate at least one connecting element and is correspondingly designed depending on the type and design of the connecting element. The relevant adapter element preferably isolates the switching unit from the control unit and/or the switching unit from the connection element. the

In a particularly simple embodiment, the adapter element is designed as an electrically insulating carrier unit, in particular a printed circuit board. The configuration of the adapter element as a printed circuit board makes it possible to integrate the control circuit as an electronic circuit in a particularly simple manner. The interconnection of the control and/or display unit can be pre-wired by designing the adapter element as a printed circuit board. For this purpose, the circuit board is preferably equipped with conductor tracks on both sides. In this case, the conductor tracks are designed with the same current-carrying capacity as the contacts of the switching unit. the

Preferably, the control unit is placed on the carrier unit as an integrated circuit and/or an electronic and/or electromechanical circuit. This allows a particularly compact structural unit, wherein the conventional single-core wires and the resulting high wiring for the control unit are reliably avoided by means of the connecting lines arranged on the carrier unit for connecting the components of the control unit overhead. the

Depending on the structure and function of the switching device, the control unit can be designed differently. Expediently, the control unit comprises two galvanically isolated power supply connections for supplying the unit arranged in the load circuit and for supplying the unit arranged in the control circuit. If the H-bridge circuit for controlling the direction of rotation of the motor is configured with the aid of corresponding switching transistors in such a way that a switched-mode power supply is no longer required, then the switched-mode power supply can be dispensed with for the power supply of the load circuit. In this case, voltage variations can be obtained for different rated voltages of the drive motors of the switching gear. The two power supply connections and the associated voltage supplies are isolated from one another in the control unit and are secured externally in isolation, for example. The voltage supply for the control circuit and the load circuit takes place in a wide voltage range including control voltages for DC voltages of 24V, 48V, 60V, 110V, 220V or AC voltages of 110V, 230V. The internal voltage supply to the control unit, eg with 12 V DC, is generated from the control voltage of the switching device via an internal switching power supply. the

In the event of a failure of one of the supply connections, the drive motor of the switching gear can be disconnected by means of the control unit and the associated switching device, for example a three-position disconnector or a circuit breaker, can be blocked. In the event, for example, of voltage reappearance, the drive motor is not allowed to restart automatically without command input. If there is no internal response by the switching unit (auxiliary switch) within a predetermined time depending on the type of drive motor, a fault indication is output. In this case, the fault notification is output for the creep mechanism of the drive motor after about 8 s, and for the snap mechanism or the snap energy storage mechanism likewise after about 8 s. the

In a further embodiment, the control unit blocks or deactivates the associated switching device (for example three-position disconnector, circuit breaker, earthing device) upon occurrence of a predeterminable message. the

Preferably, the connecting element is designed as a plug connector. As a result, the connection to the control and/or display unit can be made via a prefabricated pluggable cable harness, so that no further wiring work is required, since the internal wiring of the control and/or display unit is via the prefabricated circuit board of the adapter unit The constituted bearer unit is realized. the

The switching unit is expediently designed as an auxiliary switch with a predetermined number of position levels. Depending on the configuration of the associated switchgear, the auxiliary switch can be an 8- or 14-piece auxiliary switch with 6 or 12 freely available contact pieces for the normally closed and normally open functions. Depending on the configuration of the auxiliary switch, the associated plug connector or connecting plug is embodied as a 2 x 22-pole plug connector in the case of an 8-section auxiliary switch, and as an example in the case of a 14-section auxiliary switch. 2 x 22 poles and a 2 x 10 pole plug connector. the

The advantages achieved with the invention are in particular that by integrally constructing the control unit itself as an integrated thin-film circuit and the combined control and/or display unit as an integrated component with prefabricated and internally wired adapter elements, according to At the same time, the compact design results in a simple prefabricated and verifiable motor controller as a module. Expensive individual wiring is reliably avoided. In this case, the control unit can be separated from the display unit via the adapter element by means of an auxiliary switch. As a result, the control unit can be replaced without outlay on wiring and independently of the type of switching device. In addition, the testing and wiring effort of the control unit and of the combined control and/or display unit is significantly reduced, since the internal wiring is prefabricated and only external wiring, for example via a pluggable mechanically prefabricated cable harness, is required. Connect the wiring. Furthermore, the lifetime of the structural unit is considerably increased by the automatic disconnection. In this case, a capacitor can be permanently connected to the supply voltage in the input filter circuit for charge retention when the control unit is switched off. By designing the control unit as an integrated thin-film circuit, it consumes no energy in the off state, so that no power needs to be supplied in the off state. Consequently, the power loss is substantially reduced completely. the

Description of drawings

Embodiments of the present invention will be further described below in conjunction with the accompanying drawings. Here, in the attached picture:

Figure 1 schematically shows an embodiment of a control and/or indicating unit constructed as an integrated structural unit, in an assembled state with an adapter unit, according to a side view,

Figure 2 schematically shows an embodiment of a control unit with corresponding connectors,

Figure 3 schematically shows an embodiment of the circuit structure of the control unit for the corresponding joints,

Fig. 4 schematically shows an embodiment of an integrated structural unit in an exploded view according to a longitudinal section, which has a control unit that can be placed on the head of 8 auxiliary switches arranged in the middle,

Fig. 5 schematically shows the integrated structural unit according to Fig. 4 according to the top view of the switch unit placed on the head of the auxiliary switch,

Figure 6 schematically shows an embodiment of an integrated structural unit according to a longitudinal section, which has a control unit that can be placed on the head of 14 auxiliary switches arranged in the middle, and

FIG. 7 schematically shows the integrated structural unit according to FIG. 6 in a plan view of the switching unit placed on the head of the auxiliary switch. the

Mutually corresponding parts are marked with the same reference signs in all figures. the

Detailed ways

FIG. 1 schematically shows an exemplary embodiment of a control and/or display unit 1 configured as an integrated structural unit. The control and/or display unit 1 serves as a controller for a switching gear of a switching device, here a high-voltage or medium-voltage switchgear with three switching poles, for example a three-position disconnector. the

The control and/or display unit 1 includes as a central component a switching unit 2 designed as an auxiliary switch. In this case, the switching unit 2 serves as a response to the operating position of the switching device. Here, the switch unit 2 may include multiple position levels, and may generate multiple operating position prompts corresponding to the number of position levels. the

Depending on the function and structure of the switching devices that can be switched via the control and/or display unit 1 and the switching gear, a corresponding number of universal adapter elements 3.1 to 3.n can be arranged, in particular plugged, on the switching unit 2 . Adapter elements 3 . 1 to 3 . n are expediently designed as electrically insulating carrier units, which are designed as circuit boards with conductor tracks on one or both sides for the prefabrication of the internal wiring of control and/or display unit 1 . Here, the adapter elements 3.1 to 3.n are arranged on the switching unit 2 in such a way that the contacts of the switching unit 2 are in electrical contact with the conductor tracks of the adapter elements 3.1 to 3.n. For example, the adapter elements 3.1 to 3.n each have a socket connection into which the plug of the switching unit 2 can engage. the

The adapter elements 3 . 1 to 3 . n are correspondingly designed for controlling or checking the contacts of the switching unit 2 . For example, one of the adapter elements 3.1 to 3.n, the adapter element 3.1 arranged on the head of the switch unit 2, is equipped with a control unit 4 which is arranged as an integrated circuit and/or electronic circuit in the Above the adapter element 3.1 it has electromechanical, electromagnetic and electronic components. In this case, the components of the control unit 4 are connected to one another via conductor tracks of the printed circuit board, so that the control unit 4 for the switching gear as well as the switching device can also be prefabricated. As a result, the prefabricated control unit 4 can be checked for functionality in a simple manner before final assembly. In an alternative embodiment, the control unit 4 can be arranged on a separate circuit board, which can then be plugged into the corresponding adapter element 3.1 via a socket-plug connection. the

In the present example, the further adapter elements 3 . 2 and 3 . 3 are used to accommodate a connecting element 5 , which is designed, for example, as a plug connector or as a connecting plug in order to accommodate a prefabricated cable harness that can be easily inserted into the connecting element 5 . Depending on the function and type of the switching gear and the corresponding switching device, the relevant connecting element 5 is variable with regard to the number of its connecting poles. the

FIG. 2 schematically shows an exemplary embodiment for a control unit 4 with corresponding connections A1 to Am. In this case, the control unit 4 is designed as an integrated thin-film circuit, as shown in detail in FIG. 3 . the

The connections A1 and A2 are supply connections and are labeled below as supply connections A1 and A2. In this case, the supply connection A1 is used for supplying the units not shown further in the control circuit SK, and the supply connection A2 is used for supplying the units provided in the load circuit LK. Connector A3 is used to control the motor steering of the drive motor M for the switch transmission mechanism. Connector A4 is a binary input, e.g. a blocking connection, in particular a floating relay input/output to a higher-order operating device, such as "Lockback circuit breaker (Rückverriegelung Leistungsschalter)", "Other blocking input", or for switching operations Allowed, such as "isolator allowed", "grounder allowed" or "permitted for three-position isolating switch under the condition of circuit breaker opening". Connector A4 can switch the voltage from 24V DC to 220V DC (such as 48V DC, 60V DC, 110V DC, 220V DC) or 110V AC, 230V AC. Connector A5 is a floating output, such as a binary warning output, e.g. "fault notification", "blocking of higher-level operating devices, such as circuit breakers", "service and programming interface", "self-monitoring (= watchdog )". Connector A6 are other binary inputs with voltages from 24V DC to 220V DC or 110V AC to 230V AC, e.g. binary command inputs such as "Isolator On", "Isolator Off", "Ground switch on", "ground switch off", and the internal response of the operating device, such as the response of the contact piece of the auxiliary switch and the response "isolator is connected", "isolator and ground switch are disconnected", " The grounder is connected". the

In this case, the control of the control unit 4 is configured as follows: If one of the supply connections A1 and A2 fails during operation of the drive motor M, the drive motor is stopped, and the connection to the superordinate operating device (such as a circuit breaker) can be switched via connection A5. device) and thus remain normal. If the drive motor M is not activated under the condition of command input through one of the connectors A6, the relevant command is not stored because it is not executed. On the condition that the supply voltage for one of the circuits LK, SK to be supplied is present again, the drive motor M is not automatically restarted without a command input. Furthermore, a fault or error message is output if there is no response from the auxiliary switch via one of the connections A6 within a predeterminable time after the input of the command to switch the operating device. For example, this predeterminable time is approximately 8 s for a drive motor M configured as a peristaltic mechanism, and also approximately 8 s for a snap mechanism/snap energy storage mechanism. the

Furthermore, if a command is processed and responded after approximately 1.5 s and no new command input is made, the control unit 4 is automatically switched off, so that no power loss occurs. Conversely, if a command is entered via one of the connections A6, the drive motor M is started again if all preconditions are met. For this purpose, the restarting of the drive motor M is monitored by means of a monitoring module 16 (self-check) by polling all command and prompt inputs (=connections A4 and A6). If the preconditions are met, the command presented on connector A6 is executed. the

In addition, the response monitoring time can be freely programmed. No responses are set for auxiliary switches, disconnection of the control unit 4 and fault indications. Furthermore, at least four motor braking functions can be freely programmed by means of a control program implemented in the microprocessor 10 , eg automatic deactivation of the braking function, freely programmable times, freely programmable manual operation. the

In a possible implementation, in order to perform hardware control, that is, control of operating devices such as circuit breakers or three-position isolating switches, the control unit 4 includes: at least four command input terminals through external keys, at least three Response input for the internal auxiliary switch of switching unit 2, one for the control input of the circuit breaker (if the circuit breaker is opened, the control is active in case of a high signal, control unit 4 allows switching), one for the circuit breaker control outputs, at least one blocking output, at least one reserve connector, one steering reverse connector, and two floating relay outputs. the

The control implemented according to the algorithm includes at least the following blocking conditions:

- If the circuit breaker is connected and the internal power supply is disconnected, the control "three-position isolating switch" will fail;

- If the "three-position isolating switch" is switched to manual operation, the control "three-position isolating switch" will fail;

- Controls the lockback of the circuit breaker if:

○ A command for changing the operating state of the three-position disconnector is given in advance. the

○The three-position isolating switch is in operation and has not reached the final position. the

○ The control "three-position isolating switch" is ineffective due to eg external blocking conditions (eg safety tripped, gas loss). the

FIG. 3 shows in detail an exemplary embodiment of the circuit configuration of the control unit 4 as an integrated thin-film circuit with corresponding connections A1 to A6 . In this case, the control unit 4 comprises an H-bridge circuit 9 and a microprocessor 10 designed as semiconductor circuits, as well as various control modules 11 to 13 designed as semiconductor circuits for actuating and checking analog latches, binary Response and binary input and output. the

Switching elements 14 and 15 are provided for switching on and off the supply voltage for the control circuit SK and the load circuit LK. The switching elements 14, 15 are relay contacts which can be switched by an input command via a binary input at connection A6. In this case, the power for switching on is provided via the binary input, which results in a high interference immunity of the switching on process. After switching on the switching elements 14 , 15 , the corresponding switching relay is held (=self-holding), for example via an auxiliary winding. Then, the microprocessor 10 performs disconnection according to the control signal generated by the controller. For example, if there are no new commands waiting to be processed, the control unit 4 is automatically switched off approximately 1.5 s after the processing of the last command and the response via the auxiliary switch. the

The control unit 4 is powered via the control circuit SK and has a low current consumption of, for example, approximately 60 mA at a control voltage of 24 V DC. the

The connection A4 for the simulated blocking of a superordinate operating device, such as a circuit breaker, is designed as a floating contact. Lockback is implemented via the binary input of connector A6. the

A monitoring module 16 connected to the microprocessor 10 is provided for monitoring the supply of the H-bridge circuit 9 and the switching elements 14 , 15 as well as the connection A6 for command input. Furthermore, the monitoring module 16 can be connected to a display element (for example a light-emitting diode) or to a floating connection A5 for outputting a message. In this case, the safety functions implemented in the microprocessor 10 can be used by connecting the monitoring module 16 to the microprocessor 10 and linked and combined with the circuit-based safety functions of the monitoring module 16 . Depending on the results of the safety functions of the monitoring module 16 and/or the microprocessor 10, it is possible to disconnect the power supply of the H-bridge circuit 9, in particular the control element 19, and the disconnection function in the event of a malfunction or a wrong function. in the switching element 14 of the load circuit LK. the

Furthermore, other operating and/or safety functions can be implemented by means of the microprocessor 10 and used for controlling or switching switching devices, drive motors or other elements such as the display element 20 or the control element 19 . In the following, several examples of freely programmable operating functions and/or safety functions will be described. the

For example, the drive motor M can be braked when the final position of the operating device (for example a three-position isolating switch with the final positions "isolator on", "off", "grounder on") is reached. Here, the braking time and the follow-up time of the drive motor M are freely programmable. After a predetermined braking time and after manual operation is permitted, the motor circuit is automatically disconnected and manual operation is permitted. Furthermore, the electronic control and thus the control unit 4 with the microprocessor 10 and the control modules 11 to 13 are blocked when the switch gear is switched over to manual operation. the

By means of the electronic control, detected faults can be displayed, for example, a wrong direction of rotation of the drive motor M, a mechanical fault of the switching gear, a loss of load voltage or a non-response of the auxiliary switch. To this end, the display element 20 is controlled by means of the microprocessor 10 . Depending on the type of control, the display element 20 can illuminate continuously or flashingly. In this case, in order to display different fault degrees, the display element 20 can be actuated according to differently timed flashes (for example Tf=0.5s or Tf=2s). the

In addition, the response time of the switching process as well as the monitoring time can be freely programmed. Furthermore, in the case of a stalled drive motor M, the motor current can be limited in time. Furthermore, other suitable control functions and/or notification functions for the operation and safety of the switching mechanism can be implemented by means of the microprocessor 10 . the

Depending on the type of voltage supply (DC voltage or AC voltage), corresponding voltage converters 17, 18 are provided between the H-bridge circuit 9 and each current to be supplied (control circuit SK and load circuit LK), especially It is an AC/DC or DC/DC converter. To electrically isolate the control circuit SK and the load circuit LK from the internal voltage circuit of the control unit 4 for the control voltage or the load voltage, the voltage converters 17 , 18 are designed as inverters or rectifiers. the

FIG. 4 schematically shows the integrated structural unit according to FIG. 1 in an exploded view and in longitudinal section, with an adapter element 3.1 with a control unit 4 that can be placed on the head of the centrally arranged switching unit 2 . In this exemplary embodiment the adapter element 3.1 is embodied as an 8-piece auxiliary switch. The control unit 4 (ie its components, eg active and passive electronic components, H-bridge circuit 9, relays) is placed on the respective adapter element 3.1 on both sides of the adapter element 3.1. In this case, especially tall components (for example capacitor 6) are arranged on the side of the printed circuit board in the direction of switching unit 2. Depending on the configuration of the switching unit 2 , the capacitor 6 can be inserted into the recess 7 of the switching unit 2 here. Furthermore, the adapter element 3.1 is detachably fastened to the switching unit 2 in a suitable manner (for example, plugged in, clamped or screwed). the

FIG. 5 schematically shows the integrated structural unit according to FIG. 4 according to a top view of the adapter element 3.1 with the control unit 4 placed on the head of the auxiliary switch. Here, the adapter element 3.1 is embodied as a printed circuit board which has a cutout 8 in the region of the switching unit 2, so that the switching unit 2 can be freely reached from the head and is at least partially inserted into the cutout 8 and shaped Fittingly located on the adapter element 3.1. In this way, the adapter element 3 . 1 is held on the switching unit 2 in a simple manner. the

On the printed circuit board and thus the side of the adapter element 3.1 facing away from the switching unit 2, the control unit 4 is arranged, for example as an integrated circuit, in particular an integrated thin-film circuit. Depending on the requirements, the control unit 4 is mounted on the adapter element 3 . 1 on the side of the switching unit 2 . In order to realize a compact overall length of the integrated structural unit, in an alternative embodiment not shown in more detail, parts of the control unit 4 can also be arranged on the adapter element on the side of the switching unit 2 3.1 On the side facing the switch unit 2. In particular tall components such as the capacitor 6 of the control unit 4 can also be arranged on the side of the adapter element 3 . in recess 7. the

Figure 6 schematically shows an embodiment of an integrated structural unit according to a longitudinal section, which has 14 auxiliary switches arranged in the middle as a switch unit 2, and a control unit 4 is arranged on the head of the auxiliary switch. Adapter elements 3.1. When the switching unit 2 is configured as a 14-piece auxiliary switch, a plurality of connection elements 5 with different numbers of poles are arranged on the side of each adapter element 3.2 and 3.3. For example, a 2×22-pole connecting plug and a 2×10-pole connecting plug are provided for each connecting element 5 . the

FIG. 7 shows the integrated structural unit according to FIG. 6 in a plan view of the adapter element 3.1 with the control unit 4 placed on the head of the auxiliary switch. Depending on the type and design and function of the switching unit 2 , the control unit 4 can be configured differently or identically. In this case, the adapter element 3.1 surrounds the switching unit 2 in a U-shape, so that it can also be pushed onto or placed on the switching unit 2 from the side, instead of being inserted at the head according to FIG. 4 . the

List of reference signs

1 control and/or indicating unit

2 switch units

3.1 to 3.2 adapter elements

4 control unit

5 connection elements

6 capacitors

7 recesses

8 gaps

9H bridge circuit

10 microprocessors

11 to 13 control modules

14, 15 switching element

16 monitoring module

17, 18 voltage converter

19 control elements

20 display components

A1, A2 power supply connector

A3 to A6 Connector

LK load circuit

M drive motor

SK control circuit

Claims (19)

1. A device for controlling a switch drive mechanism of a switchgear, characterized in that the control and/or indication unit (1) constructed as an integrated structural unit comprises a control unit (4) for controlling (M) Switch transmission mechanism for operation, wherein the control unit (4) is formed as an integrated thin film circuit, which is placed on a carrying unit formed as a circuit board, wherein the carrying unit is formed as A universal adapter element (3.1) is formed, and wherein a monitoring module (16) configured as a semiconductor circuit is provided for self-monitoring. 2. The device according to claim 1, wherein said integrated thin film circuit comprises: a microprocessor (10) and at least one display element (20) as discrete components; and a control module (11) constructed as a semiconductor circuit to 13); and an H-bridge circuit (9) constructed as a semiconductor circuit; and conductor tracks, insulators, contacts (A1 to Am), switching elements (14, 15), capacitors as passive components. 3. The device according to claim 2, wherein the H-bridge circuit (9) constitutes an internal circuit element and operates within a wide voltage range of 24V DC to 220V DC and 110V AC to 230V AC. 4. The device as claimed in claim 2, wherein the display elements (20) are designed as light-emitting diodes. 5. The device as claimed in claim 2, wherein a wrong direction of rotation of the drive motor (M), missing load voltage and/or non-response of an auxiliary switch can be displayed by means of the display element (20). 6. Device according to claim 2, wherein one (A2) of said connections is a supply connection of a load circuit (LK) and the other connection (A1 ) is a supply connection of a control circuit (SK). 7. The apparatus of claim 6, wherein the power supply connections are electrically isolated. 8. The device as claimed in claim 6, wherein a switching element (14, 15) and a voltage converter (16, 17) respectively are connected upstream of the supply connections. 9. The device as claimed in claim 8, wherein the switching elements (14, 15) are designed as relay contacts. 10. The device as claimed in claim 8, wherein the switching elements (14, 15) are switchable via at least one connection (A6) designed as a binary input. 11 . The device as claimed in claim 8 , wherein the switching elements ( 14 , 15 ) are designed to be self-retaining after being switched on by means of an auxiliary winding. 12 . 12. The device according to any one of claims 8 to 10, wherein each voltage converter (16, 17) is designed for a wide voltage range of 24V DC to 220V DC and 110V AC to 230VAC AC/DC and DC/DC inverters or rectifiers. 13. The device according to claim 2, wherein the monitoring module (16) switches off the switching element (14) of the supply and load circuit (LK) of the H-bridge circuit in the event of a fault. 14. The device according to any one of claims 2 to 10, wherein the response time of the switching process can be freely programmed by means of the microprocessor (10). 15. The device according to claim 14, characterized in that a switch unit (2) is formed as a position indicator, on which at least two adapter elements (3.1 to 3.n) are arranged, one of which is One is configured to accommodate a control unit (4), while the other of them is configured to accommodate at least one connecting element (5). 16. Device according to claim 15, wherein the carrying unit of the control unit (4) constitutes one of the adapter elements (3.1 to 3.n). 17. The device according to claim 15, wherein the control unit (4) is placed on the adapter element (3.1) as an integrated circuit and/or an electromechanical circuit. 18. The device according to any one of claims 15 to 17, wherein an adapter element (3.1 ) configured with a control unit (4) can be placed on the switching unit (2). 19. The device according to claim 18, wherein an adapter element (3.1 ) configured with a control unit (4) can be plugged on the switching unit (2).

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