CN113013000A

CN113013000A - Remote driver and parameter setting method

Info

Publication number: CN113013000A
Application number: CN202011516163.7A
Authority: CN
Inventors: T.霍克默思; T.洛尔
Original assignee: Siemens AG
Current assignee: Siemens AG
Priority date: 2019-12-20
Filing date: 2020-12-21
Publication date: 2021-06-22
Also published as: DE102019220444A1; DE102019220444B4

Abstract

The invention relates to a remote drive (1) for coupling to a low-voltage circuit breaker (100) in order to operate the coupled circuit breaker (100) by means of a controllable drive (20) of the remote drive (1), and having a processing device (30) which itself has a memory device (31) for storing reference data of different circuit breakers that can be coupled, a first interface (33) by means of which actual data relating to the circuit breaker (100) to be coupled or coupled can be acquired, and a comparator device (32) for comparing the actual data with the reference data of the circuit breaker concerned. By means of the processing device (30), the actual data of the protective switching device (100) to be coupled or already coupled to the remote drive (1) can be acquired via the first interface (33) and compared with the existing reference data.

Description

Remote driver and parameter setting method

Technical Field

The invention relates to a remote drive for a low-voltage protective switching device, for example a line protective switching device or a residual current protective switching device, having a controllable drive for operating the protective switching device. Furthermore, the invention relates to a method for parameter setting for such a remote drive.

Background

Remote driver canThe remote operation of the low-voltage protection switch equipment can be realized. Such low-voltage circuit breaker systems are also referred to as rail-mounted systems

The remote drive is mechanically coupled to the protective switching device and can be used both for remotely switching off and for remotely switching on the protective switching device. Such remote drives are known in principle from the prior art, for example from german patent document DE 10216055B 4.

For example, circuit breakers, line protection switches (LS switches), fault current protection switches (FI switches), fire protection switches, combination devices (such as FI-LS protection switch devices or load disconnectors) are considered as protection switch devices for coupling with remote drives.

In this case, the circuit breaker is designed specifically for high currents. A line protection switch (so-called LS switch) is an overcurrent protection device for use in electrical appliances and is used in particular in the field of low-voltage networks. Circuit breakers and line protection switches ensure a safe shut-off in the event of a short circuit and protect the consumers and electrical equipment from overloads, for example from damage to the electrical line due to overheating caused by excessive currents. They are designed to automatically open the current circuit to be monitored in the event of a short circuit or in the event of an overload and thus to be disconnected from the rest of the power network. Circuit breakers and line protection switches are therefore used in particular as switching elements and safety elements for monitoring and protecting electrical current circuits in electrical energy supply networks. In principle, line protection switches are known from publications DE 102015217704 a1, EP 2980822 a1, DE 102015213375 a1, DE 102013211539 a1 or EP 2685482B 1.

With the help of the fault current protection switch, personal protection, property protection or fire protection can be realized. A fault current protection switch is a switching device which, in the event of a fault in an electrical device or installation, switches off the electrical device or installation in the shortest time and is therefore disconnected from the remaining power grid if the current flows in the "wrong path", say through the body of a person, to earth. For this purpose, the residual current circuit breaker compares the current intensity of the current flowing to the load with the intensity of the current flowing back from the load. Fault current protection switches are known, for example, from documents EP 0957558 a2, DE 102014208036 a1 or DE 102014202485 a 1.

Furthermore, switchgear devices without their own protective function are also known from the prior art. This includes, for example, so-called load switches, disconnectors or load disconnectors. The latter is understood as a switching device as follows: the switching device satisfies, in terms of its functionality, both the requirements for load switches (switching under an electrical load) and the requirements for isolating switches (approximately powerless separation of electrical installation components). In low voltage networks, for example, disconnectors are used to interrupt a main current loop in a main power distribution area.

However, the installation of the remote drive is relatively costly, since here information about the protection switch to be coupled to the remote drive must first be provided on the remote drive. In this case, for example, a torque necessary for operating the coupled protective switching device can be mentioned, which depends in particular on the number of switching points to be switched. Furthermore, maintenance of the protective switchgear or the remote drive is mostly carried out preventively, since there is no information about the current state of the installation.

Disclosure of Invention

The object of the invention is therefore to provide a remote drive for a low-voltage protective switching device and a method for parameterizing a remote drive, which are characterized by low installation and maintenance costs.

According to the invention, this object is achieved by a remote drive for coupling to a low-voltage circuit breaker and by a method for parameterizing a remote drive according to the invention, which is provided for coupling to a low-voltage circuit breaker. An advantageous embodiment of the remote drive according to the invention and of the method according to the invention is the subject matter of the invention.

The remote drive according to the invention is intended to be coupled to a low-voltage protective switching device in order to be operated by means of a controllable drive of the remote drive, i.e. to switch the coupled protective switching device on or off, and has a processing device which itself has a memory device for storing reference data of different protective switching devices which can be coupled, a first interface by means of which actual data relating to the protective switching device to be coupled or coupled can be acquired, and comparator means for comparing the actual data with the reference data of the protective switching device concerned.

By means of the processing device, it is possible to collect via the first interface the actual data of the protective switching device to be coupled or already coupled with the remote drive and to compare this actual data with the existing reference data. In this way, settings required when installing the remote drive, for example, settings relating to the switch-on speed or switch-on torque, can be automatically made. Thereby, the installation cost is significantly reduced.

In an advantageous development of the remote drive, the actual data of the protection switching device contains information about the type of device.

In an advantageous manner, the actual data contains information about the device type of the protection switching device to be coupled or coupled. By comparison with reference data of possible protection switching devices, i.e. protection switching devices which can in principle be coupled to a remote drive, it is possible to automatically detect which kind and type of protection switching device should be coupled to or has been coupled to the remote drive. Thereby, parameter giving of the remote drive can be significantly simplified.

In a further advantageous embodiment of the remote drive, the information about the type of device is collected manually or automatically via the first interface.

This information can be collected both manually and automatically via the first interface. For example, in the context of an electrical installation, a technician can use a smartphone application to capture actual data by reading a barcode or QR code applied to the protective switching device and transmit the actual data to a remote drive via the first interface. Alternatively, it is possible for the protective switching device to be coupled to have its own communication device and therefore to be able to communicate directly with a remote drive. Thereby, the mounting work is further simplified.

In a further advantageous embodiment of the remote drive, the actual data contains current loss information of the coupled protection switching device.

By measuring the torque or acceleration values required for switching on or off and comparing them with reference values assigned to the type of protection switching device concerned, the mechanical losses of the connected protection switching device can be inferred. By means of the comparator device, the measured loss values are compared continuously (i.e. during each switching process) or at discrete intervals with reference values stored in reference data in order to obtain current information about the loss state of the connected protective switching device.

Before the corresponding predefined loss limit value (which is also contained in the reference data) is reached, a message can be sent about the imminent end of the service life of the connected protective switching device, whereby the replacement of the protective switching device is initiated preventively. Replacement, which is triggered only by the passage of time but is not yet required due to a wear situation, is effectively prevented.

After the loss limit value is exceeded, the protective switching device can be automatically switched off via the connected remote drive, wherein a renewed switching on can also be prevented. In this way, dangerous operating states, for example, high heating is not permitted or undefined switching positions due to excessive torques on or off, can be avoided. Therefore, the working safety of the equipment is obviously improved.

In a further advantageous embodiment of the remote drive, the processing device has at least one measuring line for recording current wear information.

By means of the measuring lines, for example, the voltage drop across one (or all) phases of the coupled protective switching device can be detected, so that the contact erosion on the switching contacts assigned to the respective phase can be inferred in reverse. In the case of a multipole switching device, the voltage drop is advantageously detected on all phases by means of the measuring lines. Suitable measuring circuits are advantageously integrated into the processing means of the remote drive. This effectively prevents dangerous operating states. Furthermore, maintenance or replacement of the switchgear can be controlled as desired.

In a further advantageous embodiment, the remote drive has a torque sensor in order to detect the torque occurring when the coupled protective switching device is switched on and/or off and to compare this torque with a permissible reference value.

The measurement of the acceleration or angular velocity can be carried out, for example, by means of a hall sensor arranged in the remote drive, which hall sensor detects the velocity/acceleration of the drive component of the drive device, which is equipped with a magnet. If corresponding values are stored in the reference data, these can be compared with the measured actual values continuously (i.e. during each switching process) or at discrete intervals by means of the comparator device.

Before the corresponding predefined torque limit value (which is also contained in the reference data) is reached, a message can be sent that the end of the service life of the connected protective switching device is imminent. After exceeding the torque limit value, the protective switching device can be automatically switched off via the connected remote drive and prevented from being switched back on to avoid dangerous operating states. Maintenance is thereby significantly simplified; meanwhile, the working safety of the equipment is obviously improved.

In a further advantageous embodiment of the remote drive, the first interface is designed to be wireless.

In an advantageous manner, known transmission standards (e.g. ZigBee, bluetooth or IR) are used for wireless data exchange via the first interface. However, the invention is not limited to the mentioned standards.

In a further advantageous embodiment, the remote drive has a second interface for exchanging data with the superordinate unit.

In an advantageous manner, the second interface for information exchange with the superordinate unit is designed to be bidirectional. For example, critical operating states can be transmitted from a remote drive to a superordinate mechanism, such as a control room. On the other hand, data (for example reference data of the coupled protection switching device) can be transmitted from the superordinate device to the remote drive, so that it is not necessary to store data about all protection switching devices which can be coupled to the remote drive in the storage device of the remote drive. Thereby, the storage requirements are significantly reduced. Furthermore, storage devices that can be designed with smaller dimensions have a favorable influence on the production costs and also on the space requirements. The second interface can be designed either wirelessly or wired.

The method according to the invention for parameterizing a remote drive of the type described above, which is provided for coupling to a low-voltage circuit breaker, has the following steps:

a) collecting actual data of the protection switching device to be coupled to the remote drive or already coupled to the remote drive,

b) transmitting the collected actual data to a processing device of a remote driver,

c) comparing the actual data collected with reference data of possible protection switching devices stored in a memory device, an

d) The protective switching device to be coupled or coupled is identified.

By means of the parameter assignment method according to the invention, the parameter assignment of a protective switching device equipped with a remote drive can be significantly simplified. The acquisition of the actual data of the circuit breaker arrangement can be carried out manually by a technician, for example by means of a suitable application program (App) on a smartphone or the like (if the circuit breaker arrangement is a circuit breaker arrangement with communication capability), or automatically.

In an advantageous further development, the method has the additional step of:

e) the coupled protective switching device is switched off if the actual data collected deviate from the stored reference data in a predefined manner.

In this way, critical operating states can already be detected and switched off preventively. This further improves the operational safety of the electrical device.

In a further advantageous embodiment, the method has the further steps of:

f) information is output to the superordinate unit by means of the second interface, wherein the information contains the reason for switching off the coupled protective switching device.

This makes it possible, for example, to preventively start a replacement of the protective switching device which is to soon enter a critical operating state. Thereby minimizing down time; thereby further improving the usability of the electrical device.

Drawings

In the following, embodiments of the remote drive according to the invention and of the parameter giving method according to the invention are explained in more detail with reference to the drawings. In the drawings:

FIG. 1 shows a schematic view of a remote drive in perspective;

FIG. 2 shows a schematic diagram of the conceptual structure of a remote drive;

FIG. 3 shows a schematic diagram of a remote drive coupled to a protection switching device;

fig. 4 shows an equivalent circuit diagram of a remote drive coupled to a protection switching device according to fig. 3;

fig. 5 shows a schematic diagram of a parameter giving method according to the invention.

In the different figures of the drawing, identical parts are always provided with the same reference numerals. The description applies to all drawings, corresponding parts also being visible in the drawings.

Detailed Description

Fig. 1 shows a schematic representation of a remote drive 1 in a perspective view. The remote drive 1 has an insulating material housing 2 with a front side 4, a fastening side 5 opposite the front side 4, and a narrow side 6 and a wide side 7 connecting the front side 4 and the fastening side 5. On the front side 4, an actuating element 3 is arranged, which actuating element 3 can be coupled to an actuating element of the protective switching device 100 (see fig. 2) by means of a handle connector 8, so that the protective switching device 100 can be actuated (in the coupled state) by means of the remote drive 1. Via the fixing side 5, the remote drive 1 can be fixed on a support rail or a top hat rail (not shown) which is mainly used for fixing equipment in the electrical installation distributor. For connection to the protective switching device 100, the remote drive 1 also has two connection lugs 9, which two connection lugs 9 are arranged on the front side 4 in the region of the broad side 7 and can be inserted into receptacles 109 formed on the housing 102 of the protective switching device 100 in order to mechanically connect the remote drive 1 to the protective switching device 100.

In fig. 2, the remote driver 1 coupled with the three-pole protection switching device 100 is schematically shown in a perspective view. The circuit breaker arrangement 100 is currently designed with three poles. However, this is not essential to the invention and should therefore be understood only as an example. According to the invention, the remote drive 1 can be coupled both with a single-pole protective switching device and with a different multi-pole (i.e. two-, three-or four-pole) protective switching device 100. Except that the handle connector 8 to be used must be matched to the width of the respective protective switching device 100 to be coupled and, if necessary, to the type of the respective protective switching device 100 to be coupled.

To couple the remote drive 1 with the protection switching device 100, the two devices are arranged such that their broad sides 7 face each other. In order to mechanically fix the two devices, the two connecting tabs 9 of the remote drive are now inserted into a receptacle 109, which receptacle 109 is arranged in its position on the front side of the protective switching device 100. Furthermore, the functional coupling of the actuating element 3 of the remote drive 1 to the actuating element 103 of the protective switching device 100, which is realized by means of the common handle connector 8, acts as an additional mechanical coupling, so that a stable mechanical connection of the two devices is realized.

In fig. 3, the conceptual structure of a remote drive 1 according to the invention is now schematically shown in a side view. The remote drive 1 has a drive device 20 for remote operation of the operating element 3. For this purpose, the operating element 3 is arranged protruding on the handle roller 11, so that when the operating element 3 is operated, the handle roller 11 rotates about its axis of rotation 12. In the example shown, the drive 20 has, in addition to an electric motor (not shown), a transmission with a gear wheel 21, which meshes with a toothing 13 formed on the circumference of the grip roller 11. By means of this motor drive unit, the rotational speed of the electric motor can be matched to the torque required for operating the protective switching device 100 coupled to the remote drive 1 and thus to the mechanical load coupled to the operating element 3 via the handle connector 8. However, for the sake of clarity, the motor and the transmission are not shown in fig. 3 or are not fully shown. Furthermore, the drive 20 can also be designed gearless: in this case, the electric motor can be controlled in a speed-controlled manner and acts directly (i.e. without transmission via one or more transmission stages) on the toothing 13 formed on the grip roller 11. The energy required for driving the device 20 is provided by an energy storage device 22. For this purpose, for example, capacitors or accumulators are used which store as buffer storage and, if necessary, provide the amount of energy required for operating the operating element 3 to which the mechanical load is connected.

For controlling the drive device 20, the remote drive 1 has a circuit board 10 with a data processing device 30, for example a processor or microcontroller. The processing means 30 are furthermore provided with memory means 31 for storing reference data of different protection switching devices that can be coupled. Via the first interface 33 of the processing means 30, it is possible to collect actual data of the protective switching device 100 which is coupled or to be coupled with the remote drive 1. Furthermore, the processing device 30 has a comparator device 32 for comparing the captured actual data with stored reference data of the respective protective switching device 100. The second interface 35 of the processing device 30 is used to exchange data with a superordinate unit, for example a control center.

The memory device 31 and the comparator device 32 can each be arranged as separate functional blocks on the circuit board 10 and can be electrically conductively connected to the processor or microcontroller via the circuit board. However, the memory means 31 and/or the comparator means may also be part of a larger integrated circuit, if necessary also comprising a processor or microcontroller of the processing means 30.

In an advantageous manner, the first interface 33 and the second interface 35 are designed to be wireless. For example, ZigBee, bluetooth, or infrared may be used as a transmission standard; however, this is not essential to the invention. The wireless interface may be arranged directly on the circuit board 10; in contrast, in the case of a wired interface, suitable connection possibilities are to be provided in the region of the housing surface. It is also possible that the first interface 33 and the second interface 35, especially if they are designed to be wireless, may use common transmit hardware and receiver hardware.

An equivalent circuit diagram of the protection switching device 100 shown in fig. 2 with a coupled remote drive 1 is schematically shown in fig. 4. Three electrical connection lines L1, L2 and L3, which are each assigned to an electrical load circuit with an associated electrical load F1, F2 or F3, are connected on the input side and on the output side to the three-pole protective switching device 100. Inside the protective switching device 100, the input and output connections of the three connecting lines L1, L2 and L3 are each connected in an electrically conductive manner via a current path which is routed in the protective switching device 100. Via the switching contacts S1, S2 and S3, which are directly and exclusively assigned to the respective current path, the current path can be interrupted if necessary (i.e. if a corresponding situation, for example a short circuit, occurs) by opening the switching contacts S1, S2 and S3.

For operating the three switching contacts S1, S2 and S3, the protective switching device 100 has a switching mechanism (not shown in greater detail) which is connected to the drive 20 of the remote drive 1 via a mechanical operative connection 104. In this way, the three switch contacts S1, S2 and S3 can be opened via the remote drive 1 in order to interrupt the current paths assigned to the three switch contacts S1, S2 and S3 and thereby separate the load circuits L1, L2 and L3 from the electrical wire network. Likewise, the three switch contacts S1, S2 and S3 can be closed again by means of the remote drive 1 in order to restore the supply to the load circuits L1, L2 and L3.

In order to determine suitable loss information with regard to the increased contact melting loss of the switching contacts S1, S2 and S3, the processing device 30 has a plurality of measuring lines 34, which are each unambiguously assigned to one of the switching contacts S1, S2, S3. The measuring line 34 is used to determine the voltage drop at the respective switch contact S1, S2, S3, from which contact erosion that may be present at the respective switch contact S1, S2, S3 can be inferred.

The method according to the invention for parameter setting of a remote drive 1 provided for coupling with a low-voltage protection switching device 100, which is designed according to the kind described previously, is briefly explained below with reference to fig. 5:

in a first method step 201, the actual data of the protective switching device 100 to be coupled to the remote drive 1 or already coupled to the remote drive 1 are collected. If the protection switching device 100 itself already has communication capabilities, the protection switching device can independently transmit its actual data to the remote drive 1. The actual data are used to identify the device type of the protection switching device 100 to be coupled or coupled. However, if the protection switching device 100 itself does not have communication capability, the actual data can also be collected "manually", i.e. manually via the first (preferably designed as wireless) interface 33, for example by means of a suitable application for a smartphone, tablet or other mobile device.

In a second method step 202, the actual data of the protection switching device 100 are transmitted to the processing means 30 of the remote drive 1.

In a third method step 203, the transmitted actual data are compared with reference data, which are stored in the memory device 31, of possible, i.e. suitable, coupled protection switching devices by means of the comparator device 32.

In a fourth method step 204, the protection switching device 100 to be coupled or coupled is identified if the acquired actual data correspond to the stored reference data.

Once the device type of the connected protection switching device 100 is identified, corresponding operating data of the connected protection switching device 100 can be uploaded via the second interface 33 of the processing means 30 of the remote drive 1 and corresponding settings can be made. Relevant operating data are for example switching speed, maximum torque, voltage drop data, required force/torque window, maximum number of switching cycles, etc. From these data, it is possible to identify when the service life of the coupled protection switching device 100 has ended by comparison with the respective current actual data of the protection switching device 100.

For example, an impermissibly high melting loss at the switching contacts of the protective switching device 100, which is caused, for example, by switching on and off short-circuit currents or by high switching cycle times under high electrical loads, can be detected by a higher voltage drop at the relevant switching contacts. For this purpose, each switching contact of the coupled protective switching device needs to be correspondingly monitored. This can be achieved, for example, by a suitable measuring circuit for each switch contact, which is connected to a processing device 30 arranged in the remote drive 1. The voltage drop per switching contact can be designed in a multistage manner here:

normal voltage drop: normal operation, no measure;

increased voltage drop: the corresponding warning is output by the remote drive 1, however no further measures are taken;

-voltage drop above a predefined boundary value: the end of the service life of the connected protection switching device 100 is determined by means of a corresponding message of the remote drive 1 to the superordinated unit, and the protection switching device 100 is switched off automatically by means of the remote drive 1, wherein a renewed switching-on of the protection switching device 100 by means of the remote drive 1 is effectively avoided until the protection switching device 100 is repaired or replaced.

Furthermore, an increased torque at the time of switching on or off can also indicate the end of the mechanical service life of the connected protective switching device 100 due to wear or contamination of the switching mechanism of the protective switching device 100. The torque required for operating the operating element of the protective switching device 100 can be determined by means of a torque sensor arranged on the operating element 3 of the remote drive 1. For this purpose, for example, the acceleration or the angular velocity of the actuating element 3 of the remote drive 1 is measured by means of a hall sensor. Here, the response of the remote drive 1 can again be designed in multiple stages:

-measurement values in the normal range: normal operation, no measure;

-an increased measurement value: the corresponding warning is output by the remote drive 1, however no further measures are taken;

-a measurement value above a predefined boundary value: the end of the service life of the connected protection switching device 100 is determined by means of a corresponding message from the remote drive 1 to the superordinated unit, and the protection switching device 100 is automatically switched off by means of the remote drive 1, wherein a renewed switching on of the protection switching device 100 by means of the remote drive 1 is effectively prevented until the protection switching device 100 is repaired or replaced.

The parameter assignment method according to the invention can therefore be supplemented by further method steps:

in a fifth method step 205, if the acquired actual data deviate from the stored reference data in a predefined manner, a switch-off of the coupled protective switching device 100 can be initiated. In this way, dangerous operating states, such as inadmissible heating due to excessively burnt contacts or undefined switching positions due to excessive torques on or off, can be effectively avoided.

Furthermore, the fifth method step 205 can be supplemented as follows: in a sixth method step 206, information is output to the superordinate unit by means of the second interface 35, which information contains the reason for switching off the coupled protective switching device 100. In this way, maintenance/repair of the electrical equipment is significantly simplified.

Operating data which reflect the characteristics of each device type of the coupled protective switching device 100 can be uploaded to the memory device 31 of the remote drive 1 within the specified ranges of the parameters by means of a parameter-specifying device (for example a smartphone) or via a second interface 35, via which the connection of the remote drive 1 to a superordinate apparatus, for example a control room, is made.

With the remote drive 1 according to the invention, it is possible to detect an actual or imminent end of service life of the protection switching device 100 coupled to the remote drive. This applies both to the end of the electrical service life due to increased contact erosion on one or more switching contacts of the protective switching device 100 and to the end of the mechanical service life due to contamination or wear of the switching mechanism of the protective switching device 100.

In the event that the end of service life is imminent, a message may be sent to prompt replacement of the protection switching device 100 before the protection switching device finally fails. It is no longer necessary to replace the still functional protective switching device 100 prematurely, for example due to a fixed maintenance cycle controlled by the passage of time.

In the event of the end of the actual service life, the protective switching device 100 is switched off by the remote drive 1 and prevented from being switched on again until the device is replaced. In this way, dangerous operating states, such as inadmissible heating due to excessively burnt contacts or undefined switching positions due to excessive torques on or off, can be effectively avoided.

List of reference numerals

1 remote drive

2 insulating material housing

3 operating element

4 front side

5 fixed side

6 narrow side

7 broad side

8 handle connector

9 connecting sheet

10 circuit board

11 handle roller

12 rotating shaft

13 tooth part

20 drive device

21 gear

22 energy storage device

30 treatment device

31 storage device

32 comparator device

33 first interface

34 measuring line

35 second interface

100 protective switching device

102 shell

103 operating element

104 are operatively connected

109 accommodating part

201 first method step

202 second method step

203 third method step

204 fourth method step

205 fifth method step

206 sixth method step

L1, L2 and L3 connecting line

F1, F2 and F3 electrical load

S1, S2, S3 switch contact

Claims

1. A remote drive (1) for coupling with a low-voltage protective switching device (100) in order to operate the coupled protective switching device (100) by means of a controllable drive means (20) of the remote drive (1), the remote drive having a processing means (30) with:

-storage means (31) for storing reference data of different protection switching devices that can be coupled,

-a first interface (33) by means of which actual data relating to the protection switching device (100) to be coupled or coupled can be acquired, and

-comparator means (32) for comparing said actual data with reference data of the protection switching device (100) concerned.

2. Remote drive (1) according to claim 1, wherein the actual data of the protection switching device (100) contains information about the device type.

3. Remote drive (1) according to claim 2, wherein the information about the device type is collected manually or automatically via the first interface (33).

4. Remote drive (1) according to one of the preceding claims, wherein the actual data contains current loss information of the coupled protection switching device (100).

5. Remote drive (1) according to claim 4, wherein the processing means (30) has at least one measuring line (34) for acquiring the current loss information.

6. Remote drive (1) according to one of the preceding claims, wherein the remote drive has a torque sensor in order to detect the torque occurring when a coupled protection switching device (100) is switched on and/or off and to compare this torque with a permissible reference value.

7. Remote drive (1) according to one of the preceding claims, wherein the first interface (33) is designed to be wireless.

8. Remote drive (1) according to one of the preceding claims, wherein the remote drive has a second interface (35) for exchanging data with a superordinate unit.

9. A method for parameter giving a remote drive (1) according to any of claims 1 to 8 arranged for coupling with a low voltage protection switching device (100), the method having the steps of:

a) collecting actual data of a protection switching device (100) to be coupled to a remote drive (1) or already coupled to a remote drive,

b) a processing device (30) for transmitting the acquired actual data to the remote drive (1),

c) comparing the actual data acquired with reference data of a possible protection switching device (100) stored in a memory device (31), and

d) a protective switching device (100) to be coupled or coupled is identified.

10. The method according to claim 9, wherein the method has the additional step of:

e) the coupled protective switching device (100) is switched off if the acquired actual data deviate from the stored reference data in a predefined manner.

11. The method according to claim 10, wherein the method has the additional step of:

f) information is output to a superordinate unit by means of the second interface (35), wherein the information contains a reason for switching off the coupled protective switching device (100).