Minitype high-voltage electric energy meter directly arranged in 10KV power supply circuit

Abstract

The invention discloses a minitype high-voltage electric energy meter directly arranged in a 10KV power supply circuit. The electric energy meter comprises a silicon rubber dry-type composite bushing (1), a box body (2), an electric energy metering unit (3), a high-voltage post head (4), an amorphous material current mutual inductor (5) and an isolation transformation circuit board (6), and is characterized in that the high-voltage post head (4) is inserted into the inside of the top end of the silicon rubber dry-type composite bushing (1); the amorphous material current mutual inductor (5) is arranged on the inner top of a cavity of the silicon rubber dry-type composite bushing (1), while the isolation transformation circuit board (6) and a capacitor voltage-reduction power supply circuit board (8) are arranged from the middle part to the lower part inside the cavity of the composite bushing (1); and the isolation transformation circuit board (6) and the capacitor voltage-reduction power supply circuit board (8) are respectively connected with the inner end of the high-voltage post head (4) through corresponding conducting wires (9). The high-voltage electric energy meter has simple and compact structure, convenient installation and high efficiency, and can improve metering precision.

Description

technical field [0001] The invention relates to a high-voltage electricity metering device, in particular to a small-sized high-voltage electric energy meter directly installed on a 10KV power supply line, which is suitable for 10KV and below high-voltage power supply lines. Background technique [0002] With the development of the power system in the direction of high voltage and large capacity and the national requirements for energy saving and consumption reduction, the problem of accurate metering of electricity consumption is particularly important. Only by using accurate electricity metering data as a basis can it be possible to strengthen electrical equipment management to achieve the purpose of saving energy and reducing consumption. The high-voltage electric energy meter is an important part of the online monitoring and measurement of the distribution network. It can accurately measure and monitor the single or multiple transformers of each branch user in the distri...

AI Technical Summary

Problems solved by technology

However, there are still some deficiencies in the "6 / 10KV direct pressure energy-saving high-voltage metering box". , due to the existence of voltage transformers, it is impossible to measure the voltage in a wide voltage range

Because there are still conventional primary and secondary voltages, its anti-theft performance is also subject to certain restrictions.

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