Abstract:
Current and/or voltage sensing device (1) for integrative use in electric energy distribution systems with a current sensor (4) and/ or an voltage sensor (5) wherein the voltage sensor and/or the current sensor is/are integrated in an insulating housing (2) which is designed as at least partly toroid body surrounding a primary conductor (3) in the ready installed position of the sensing device. In order to realize optimal compactness and low weight, in order to simplify the installation, and to enable retrofit installation, that the voltage sensor and/or the current sensor is/are integrated in an insulating housing, which is designed as at least partly toroid body, surrounding a primary conductor in the ready installed position of the sensing device, by which current and/or electrical potential of the primary conductor will be measured.
Abstract:
The invention relates to a measurement device in which voltage and/or a current sensor in a casted measurement device housing, wherein the sensor component is connected with a externally ending output connector by a signal wire, and with a grounding wire to a grounding output connector, where signal connector output and grounding connector output results as the electrical connecting terminal, according to the preamble of claim 1. In order to ensure an accurate positioning of the voltage and/or current measurement device during the molding process, as well as a sure mechanical and electrical fixation of the connecting terminal at the ready measurement device, a further mechanical element (8) is arranged at the electrical connecting terminal, and provided with a central hole (10), through which the signal connector output is feeded, and at least one further connecting finger (8'), which is used as electrical grounding connection as well as a mechanical fixation of the electrical connecting terminal during the moulding process.
Abstract:
The invention relates to a medium or high voltage arrangement with cable connection terminal and voltage sensor, wherein the voltage sensor has a resistive voltage divider (3, 5) and shielding electrodes (10, 11). In order to enhance the accuracy of voltage measurement at medium or high voltage pole parts, the voltage sensor is applied as a voltage sensor module, which is integrated in the a further cable connection terminal, and that the shielding electrodes are integral part of the voltage sensor module or integral part of an insulating housing part of the terminal.
Abstract:
The invention relates to fastening means or device for fastening a voltage and/or current sensor on a electrical conductor, according to the preamble of claim 1. In order to enhance fasting means or device for fasting voltage sensors in such a way, that the fixation is accurate and reproductive as well, the invention is, that the fastening device comprise of a number of at least two fastening elements (3), each with a dowel pin clip, or a clamp at a first section (3') of the fastening element, and a support element at a second section (3") of the fastening element, so that the dowel pin clip (10) or the clamp has to be inserted into, or clamped on the housing of the sensor (2) at the first section (3'), and the support element at the second section (3") has to be fixed on the electrical conductor (1).
Abstract:
The invention relates to Current and/or voltage sensing device (1) with primary (2) and secondary circuits (3), for medium and/or high voltage AC - power grids, with design features, in order to cause a minimum phase error phase error and/or phase displacement and/or phase shift in the current and/or voltage sensing device, according to the preamble of claim 1. In order to realize a phase error compensation for current and/or voltage sensing device, which is much easier to design with lower constructional expense, the phase displacement/error/shift is improved or minimized by impedance matching element (6), which is connected to and/or within the secondary circuit of the current and/or voltage sensing device.
Abstract:
The invention relates to a voltage and or current sensor device (Fig.1) for the use in medium- or high-voltage application and a method for operation of the same. The sensor device can have at least one voltage and/or current sensor (1), wherein the sensor(s) of the sensor device is (are) arranged in a housing. In order to enhance the communication between the sensor and the electronic device and to use maximum possible accuracy of the voltage and current sensors, a signal and/or data memory element (3) is integrated in the sensor housing, or placed near the sensor in such, that the sensor device output signal can be directly evaluated. A method includes an automatic communication of historical sensing data, individual calibration data and/or parameter data between the data memory element (3) and a central calculation/monitoring device
Abstract:
The invention relates to a voltage measurement device with an insulating body, for the use in medium or high voltage equipment or switchgears, with an impedance divider consisting of at least one high voltage impedance and at least one low voltage impedance in series, and with shielding electrodes, according to the preamble of claim1. In order to do optimized voltage measurement design for a given application, preventing risk of malfunctionality in case the same device it is used in other application or at severe environmental or operating conditions, at least one high voltage shielding electrode and/or at least one low voltage shielding electrode which dimensions are applied to the physical length of the impedances, and that the shielding electrodes sourround the high and/or low voltage impedances providing required voltage division ratio, and which are located either inside or outside of the insulating body in order to distribute the electric field in the best way to reduce electric field stress either inside or outside of the said device, and that the output of the impedance divider is connected to a shielded cable, which is also part of this device.