High-voltage electric energy metering device with convenient disassembly and assembly and mounting method

Abstract

The invention discloses a high-voltage electric energy metering device with convenient disassembly and assembly, comprising a high-voltage electric energy meter and an insulating support. The high-voltage electric energy meter comprises at least two wire phase components; each wire phase component is provided with a conductive bar which is used for rapidly installing the high-voltage electric energy meter on the insulating support and is serially connected to a power transmission line; at least one of the wire phase components is internally provided with a current sensor used for inducing current and the change thereof in the conductive bar; the upper end of the insulating support is provided with a locking mechanism used for locking the conductive bar, and the lower end of the insulatingsupport is provided with an open hook used for supporting the conductive bar; the locking mechanism and the open hook are both communicated with the power transmission line; and the upper end of the conductive bar is locked by the locking mechanism, and the lower end of the conductive bar is movably hinged to the open hook. The invention aims to provide the high-voltage electric energy metering device which is small in design size, light in weight, simple in structure, convenient to install and capable of being rapidly disassembled and assembled.

Description

technical field [0001] The invention belongs to the field of power transmission and distribution measurement, and in particular relates to a high-voltage electric energy metering device and an installation method which are convenient for disassembly and assembly. Background technique [0002] It is currently used in high-voltage electric energy metering devices on the market. Structurally, it is divided into a high-voltage metering cabinet installed indoors and a high-voltage power metering box installed outdoors. They consist of two voltage transformers connected across phases A-B and C-B, two current transformers connected in series between phases A and C, and a three-phase two-element watt-hour meter. [0003] my country's insulation requirements for high-voltage transformers are 42kV for 10kV power systems, 95kV for 35kV, and 10VA for secondary rated loads. Therefore, the volume and weight of high-voltage electric energy metering devices are quite large, the price is al...

AI Technical Summary

Problems solved by technology

This kind of high-voltage electric energy metering device is small in size and light in weight, but it does not solve the problem of quick disassembly and assembly of the high-voltage electric energy metering device. At the connection point, if the high-voltage electric energy metering device is faulty or needs to be disassembled again during random inspection, for the personal safety of the installer, every disassembly and installation needs to be carried out without power failure, and the installation difficulty and installation location of the high-voltage electric energy metering device are different. , requires a single area or a transmission line to be dismantled and installed for several hours without power outage, which brings inconvenience to power users and reduces the electricity sales, economic benefits and service quality of power supply companies

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