Abstract: The disclosure relates to a measuring device for measuring a physical variable. The measuring device has a converter, which is designed to convert an input variable present at a measurement input, into a measurement signal and to provide the same as an output variable. The measuring device comprises a processing unit, which is configured to process the output variable of the converter, and a signal generator, which is designed to generate a test signal on the basis of a specification which test signal corresponds to an output variable of the converter to an input variable of the converter corresponding to the specification. The processing unit can be connected via a switching element either to an output of the converter or to an output of the signal generator. The disclosure further relates to a method for testing a measuring device.

Abstract: A current transducer for measuring the current flowing through an electrical conductor includes: a current sensor for detecting a current intensity through the electrical conductor; and an evaluation device for evaluating measured values detected by the current sensor and determining an energy flow direction as a determined energy flow direction. The current intensity is output in a positive or negative output range of an output unit depending on the determined energy flow direction.

Abstract: A current meter for detecting currents in electrical lines includes: a housing having a plurality of receiving grooves formed on a housing wall, into which receiving grooves an electrical line is in each case insertable from outside the housing; and an arrangement of magnetic field sensors enclosed in the housing. The arrangement of magnetic field sensors detects a magnetic field on electrical lines inserted into the receiving grooves. The housing encloses an interior delimited by the housing wall, inside which interior the arrangement of magnetic field sensors is arranged.

Abstract: A current measuring device for detecting a current in an electric line includes: a housing; a fastening device arranged on the housing for fastening the housing to a supporting rail; and at least one magnetic field sensor. The housing has a first housing part and a second housing part which together form an accommodating device for accommodating an electric line between the first and second housing parts. The first and second housing parts are separable from one another in order to place an electric line onto the current measuring device and placeable onto one another in order to accommodate the electric line in the accommodating device between the first and second housing parts. The at least one magnetic field sensor detects a magnetic field on the electric line accommodated in the accommodating device.

Abstract: A current monitoring device for detecting an electrical current in a line includes a housing bottom part, a first current sensor, a housing top part, and a second current sensor. The housing bottom part has a first wall in which a first wall bead is formed and configured to partially enclose the line. The first current sensor is arranged in the housing bottom part and obtains a first current measured value by measuring a current strength of the electric current. The housing top part has a second wall in which a second wall bead is formed and configured to partially enclose the line. The second current sensor is in the housing top part and obtains a second current measured value by measuring the current strength of the electric current. The first and second wall beads align with one another to at least partially enclose the electrical line.

Abstract: An adapter for an energy meter, has a voltage converter, at least two first electrical terminals for connecting to respective conductors of a power network and at least two second electrical terminals to which an energy meter can be electrically connected. The voltage converter is electrically connected to the at least two first electrical terminals and the at least two second terminals and converts a first voltage, which can be applied to the at least two first electrical terminals, into a lower second voltage that is applied to the at least two second electrical terminals, where the voltage ratio between the first and the second voltage is predetermined and can be stored in an energy meter. There is a first distance between the at least two first electrical terminals that is greater than a second distance between the at least two second electrical terminals.

Abstract: An inductive current transformer for transforming a primary current into a secondary current, has a secondary winding with two terminals, an electronic device for transmitting information to an external measuring device, a first inductive coupling device connected to the secondary winding, and a power supply device which is coupled to the secondary winding via the first inductive coupling device and which is adapted to generate a supply voltage for the electronic device from the secondary electric current of the secondary winding.

Abstract: The disclosure relates to a measuring device for measuring a physical variable. The measuring device has a converter, which is designed to convert an input variable present at a measurement input, into a measurement signal and to provide the same as an output variable. The measuring device comprises a processing unit, which is configured to process the output variable of the converter, and a signal generator, which is designed to generate a test signal on the basis of a specification which test signal corresponds to an output variable of the converter to an input variable of the converter corresponding to the specification. The processing unit can be connected via a switching element either to an output of the converter or to an output of the signal generator. The disclosure further relates to a method for testing a measuring device.

Abstract: A current meter for detecting currents in electrical lines includes: a housing having a plurality of receiving grooves formed on a housing wall, into which receiving grooves an electrical line is in each case insertable from outside the housing; and an arrangement of magnetic field sensors enclosed in the housing. The arrangement of magnetic field sensors detects a magnetic field on electrical lines inserted into the receiving grooves. The housing encloses an interior delimited by the housing wall, inside which interior the arrangement of magnetic field sensors is arranged.

Abstract: A current monitoring device for detecting an electrical current in a line includes a housing bottom part, a first current sensor, a housing top part, and a second current sensor. The housing bottom part has a first wall in which a first wall bead is formed and configured to partially enclose the line. The first current sensor is arranged in the housing bottom part and obtains a first current measured value by measuring a current strength of the electric current. The housing top part has a second wall in which a second wall bead is formed and configured to partially enclose the line. The second current sensor is in the housing top part and obtains a second current measured value by measuring the current strength of the electric current. The first and second wall beads align with one another to at least partially enclose the electrical line.

Abstract: A current measuring device for detecting a current in an electric line includes: a housing; a fastening device arranged on the housing for fastening the housing to a supporting rail; and at least one magnetic field sensor. The housing has a first housing part and a second housing part which together form an accommodating device for accommodating an electric line between the first and second housing parts. The first and second housing parts are separable from one another in order to place an electric line onto the current measuring device and placeable onto one another in order to accommodate the electric line in the accommodating device between the first and second housing parts. The at least one magnetic field sensor detects a magnetic field on the electric line accommodated in the accommodating device.

Abstract: Disclosed is a measurement signal device for a physical variable, comprising: a sensor connection configured to provide the physical variable, wherein a measurement value is based on the physical variable; a processor configured to assign a handling instruction for electronically handling the measurement value to the measurement value, the processor being further configured to encode the measurement value together with the handling information in a graphically representable code; and a display configured to graphically display the graphically representable code.

Abstract: The present disclosure relates to a docking module for a current transformer comprising: an electronic circuit and at least one electric connecting element for electrically coupling the circuit to the current transformer and for docking the docking module onto the current transformer.

Abstract: A protective circuit for a current transformer for preventing a secondary voltage on a secondary circuit of the current transformer from exceeding a secondary voltage threshold. A protective circuit input can be coupled to the secondary circuit of the current transformer such that the secondary voltage is applied to the protective circuit input. A control unit is connected to the protective circuit input. A switch unit is connected to the protective circuit input and is operatively connected to the control unit. The control unit is adapted to provide a control signal to the switch unit in response to the secondary voltage exceeding the secondary voltage threshold. The switch unit is adapted to short-circuit the protective circuit input in response to the control signal provided by the control unit. The switch unit is implemented as a semiconductor circuit.

Abstract: A photovoltaic system includes at least one string of solar modules and a system for individually disconnecting the solar modules and for safely connecting or reconnecting the disconnected solar modules to the string. At least some of the solar junction boxes are “smart” and have a safety circuit that defines an operating state and a safe state. The solar junction boxes are switched from the safe state to the operating state, i.e. are activated, by injecting a starting current.

Abstract: An inductive current transformer for transforming a primary current into a secondary current, the inductive current transformer having: a secondary winding with two terminals; an electronic device adapted to transmit information to an external measuring device; a first inductive coupling device connected to the secondary winding; a power supply device which is coupled to the secondary winding via the first inductive coupling device and which is adapted to generate a supply voltage for the electronic device from the secondary electric current of the secondary winding.

Abstract: A tool is configured to install a tire pressure monitoring (TPM) sensor in a tire rim of a vehicle tire. The tool includes a lever having a rotational movement about a rotational axis; a cam selectively coupled to the lever; and a push pin selectively coupled to the cam. The cam translates the rotational movement of the lever into a liner or translational movement of the push pin. The linear or translational movement is effective to impact or move a roll pin of a tire pressure monitoring (TPM) sensor disposed at the tool, such that portions of the TPM sensor or pushed through an opening in a tire rim.

Abstract: The present disclosure relates to a junction box for a solar panel, having a protective circuit that defines an operating state and a protected state. The protective circuit includes a short-circuiting switch between the output-side connecting elements of the first and second external connecting lines and an isolating switch between the short-circuiting switch and one of the poles of the solar panel, in which in the protected state, the short-circuiting switch short-circuits the output-side connecting elements of the first and second connecting lines to each other and the isolating switch disconnects the short-circuiting switch from the solar panel on at least one side.

Abstract: The invention relates to a docking module (22) for a current transformer (10) comprising: an electronic circuit (12) and at least one electric connecting element (28.3) for electrically coupling the circuit (12) to the current transformer (10) and for docking the docking module (22) onto the current transformer (10).

Abstract: A valve stem for coupling a TPMS wheel unit to a wheel rim, TPMS wheel unit and valve stem assembly and installation thereof are disclosed. The valve stem comprises a bulb, an inner tubular member, and an outer tubular member; the inner tubular member and the outer tubular member being fixedly attached to the bulb.