Device for solving power-carrier meter reading problem caused by reactive compensation device

Abstract

The invention relates to a device for solving the power-carrier meter reading problem caused by a reactive compensation device. An MEC device and a carrier meter-reading concentrator are connected on a three-phase four-wire system circuit between a distribution transformer and user electric energy meters respectively; the device comprises a meter-reading wave-preventing device, the meter-reading wave-preventing device is connected with the MEC device in series, and the MEC device is connected on a three-phase four-wire system circuit between the carrier meter-reading concentrator and the user electric energy meters through the meter-reading wave-preventing device. According to the device for solving the power-carrier meter reading problem caused by the reactive compensation device, the meter-reading wave-preventing device is connected with the MEC device in series, high-frequency signals which are externally emitted by the MEC device and influence carrier meter reading can be inhibited, the meter-reading success rate can be increased accordingly, the problem that power-carrier meter reading is influenced when the MEC devices are applied in a large-scale mode is solved, the industrialization implement scheme is given, and electric-power-system energy-saving reconstruction and power distribution network updating can be achieved.

Description

technical field [0001] The invention relates to the field of electric meter reading, in particular to a device for solving the problem of electric carrier meter reading caused by reactive power compensation equipment. Background technique [0002] In 2016, the General Office of the State Council and the National Development and Reform Commission jointly proposed that by 2020, rural areas across the country will basically achieve full coverage of stable and reliable power supply services. The investment in the transformation of the distribution network during the "Three Five-Year Plan" exceeded 2 trillion yuan. Safe, high-quality and low-consumption power supply is the main assessment index in the distribution network transformation. At present, the low-voltage distribution network is installing power quality based on reactive power compensation or three-phase unbalance automatic adjustment in the distribution station area in large quantities. Optimize the device to perform ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a device that solves the problem of power carrier meter reading caused by reactive power compensation equipment, which can effectively solve the problem of reactive power compensation based on power electronics or three-phase imbalance in the distribution station area for carrier communication. After automatic adjustment and other equipment, the success rate of power carrier meter reading will decrease.

[0006] The beneficial effects of the present invention are: in a device of the present invention that solves the problem of power carrier meter reading caused by reactive power compensation equipment, the meter reading wave blocking device is connected in series with the MEC device, which can suppress the high frequency of the MEC device that affects the carrier wave meter reading. Frequency signal, which can improve the success rate of meter reading, solve the problem of affecting power carrier meter reading when MEC devices are used in large quantities, and provide an industrialized implementation plan, which is conducive to energy-saving transformation of power systems and upgrading of distribution networks

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