Medium and high voltage type combined electronic transformer

Abstract

The invention relates to a medium and high voltage type combined electronic transformer. The medium and high voltage type combined electronic transformer comprises an epoxy resin pouring body; a current transformer is arranged at the upper part in the epoxy resin pouring body, and a voltage transformer is arranged at the lower part in the epoxy resin pouring body; the current transformer comprises a primary conductor, a measuring coil and a protection coil; the voltage transformer comprises a resistance divider, a high-voltage shielding ring arranged at the upper end of the resistance divider, and a grounded shielding ring arranged at the lower end of the resistance divider; one end of the primary conductor is connected with a high-voltage conducting wire; the other end of the high-voltage conducting wire is connected with the high-voltage shielding ring; the measuring coil is connected to a secondary signal output socket through a secondary signal output lead wire of the measuring coil; the protection coil is connected to the secondary signal output socket through a secondary signal output lead wire of the protection coil. The medium and high voltage type combined electronic transformer is a 10-kV electronic transformer which is reasonable in structure and excellent in performance.

Description

technical field [0001] The invention relates to a transformer, in particular to a medium and high voltage combined electronic transformer, which belongs to the technical field of components used in the electric power industry. Background technique [0002] On-line current and voltage measurement, protection and monitoring of 10kV power grid often use traditional electromagnetic current transformers and voltage transformers as sensing components, or a combination of the two. Because the traditional electromagnetic transformer is made by the principle of electromagnetic induction, its weight, volume, power consumption, measurement accuracy, linearity, range, frequency response and other parameters are greatly limited, and it is difficult to have further development space. With the development and update of grid technology, especially the accelerated development of smart grid, the deficiencies and defects of this traditional sensing components are increasingly exposed and can n...

AI Technical Summary

Problems solved by technology

Due to differences in design principles and manufacturing processes, the performance of electronic transformers appearing in the market varies greatly

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