Terminal direct-current power supply method for 35kV and above power consumer electricity consumption information acquisition system

Abstract

The invention relates to a terminal direct-current power supply method for a 35kV and above power consumer electricity consumption information acquisition system. The special transformer acquisition terminal and the electric energy meter realize work matching in a direct-current power supply mode environment on the basis of reserving an original alternating-current power supply mode, and a direct-current operation power supply is connected to the special transformer acquisition terminal and the electric energy meter after passing through a direct-current system bus and an air switch. On the basis of realizing the AC / DC adaptive power supply module of the special transformer acquisition terminal, the power supply mode of the 35kV and above power consumer electricity consumption informationacquisition system terminal is adjusted from a single AC power supply mode to an AC power supply mode and a DC power supply mode. The power supply access technical scheme of the 35kV and above power consumer electricity consumption information acquisition system terminal is perfected, the direct current power supply mode is more stable, more reliable and more economical than the alternating current power supply mode in specific implementation, and the technical blind area is completely eradicated.

Description

technical field [0001] The invention relates to a continuous and reliable power supply access technology applied to a terminal of a power consumption information collection system of a 35kV and above electric power user, and belongs to the field of electric power technology. Background technique [0002] In the same-term line loss management system of the State Grid Corporation of China, whether the information collection of watt-hour meters for trade settlement of 35kV and above power users is successful or not will have a serious impact on the 35kV and above partial voltage line loss indicators in the power supply area under its jurisdiction, so the comprehensive increase of 35kV and above power The success rate of full collection of user electricity information is the top priority in line loss management. [0003] The terminal of the power consumption information collection system for 35kV and above power users is composed of a special transformer collection terminal and ...

AI Technical Summary

Problems solved by technology

[0008] 2. For 35kV and above non-automated power user substations, due to the long operation time and the old primary and secondary substation equipment, the substations are generally not equipped with UPS

In the actual operating environment, since the UPS works continuously for a long time, failures cannot be avoided. Once the UPS equipment is damaged or the UPS internal inverter components fail, it will not be possible to guarantee the normal power supply of the terminal device or the power supply of the terminal device after the power supply line loses power. continue working

[0011] It can be seen that for large power customers with 35kV and above, the continuous operation of the power consumption information collection system terminal in the AC power supply mode is not reliable, and there are technical blind spots. A new technical solution is urgently needed to ensure the power consumption information collection system. Stable, continuous and reliable operation of the terminal

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