Installation structure of metering device for 10kv power distribution cabinet

Abstract

The invention provides a metering device installation framework of a 10kV power distribution cabinet. An electric-utility-side fuse wire, a voltage transformer and a current transformer are arranged in a freight space which is used as an electricity cabinet, and then the freight space is sealed; the current transformer is arranged on one side in the freight space, and the electric-utility-side fuse wire and the voltage transformer are arranged on the opposite other side in the freight space. By adopting the metering device installation framework, the wire connection design of a power distribution station of the user is optimized, the quality control of equipment in a factory can be favored, the risk of the power consumption safety and the power consumption examination can be reduced, the installation environment is optimized, the working efficiency is improved, and the electricity-stealing preventing measures can be improved.

Description

Technical field [0001] The invention relates to a power equipment, in particular to a metering device mounting structure of a 10kV power distribution cabinet. Background technique [0002] The metering device is like a steelyard for power settlement between the power supply company and the power customer. According to Shanghai Electric Power’s "Power Supply Business Rules", the billing watt-hour meter, the current / voltage transformer for measurement, the secondary connecting wire, and the voltage loss timer are included. Other equipment is defined as metering devices. These metering devices are of great significance to the electrical industry. The power company responsible for the installation, movement, inspection, removal, sealing, unsealing, and meter wiring of the user’s metering devices is responsible for ensuring the metering device The safe and reliable operation of the electric power company is one of the basic tasks. [0003] Such as figure 1 Shown is a schematic diagram ...

AI Technical Summary

Problems solved by technology

[0005] In addition, the space in the warehouse is crowded. If the fuse fails (such as arc extinguishing failure, fuse explosion, etc.), there is a risk of harming the surrounding metering devices, expanding the scope of the accident and increasing the maintenance workload.

Moreover, in order to save costs, the manufacturer often does not set up an independent grounding bar in this kind of power distribution cabinet, but uses the shell to ground, which does not meet the requirements of the regulations.

The nameplates of current transformers and voltage transformers are objectively affected and can only be set on the back of the equipment, making it difficult to conduct general surveys

[0006] Therefore, although the user has the right to choose the equipment manufacturer, the actual internal installation and connection of the distribution cabinet with the same model and the same electrical system connection is also very different; in actual work, if the user uses the existing The power distribution cabinet will be difficult to pass the acceptance of the power company, and it will be inconvenient to carry out rectification on site

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