Multipurpose low-voltage intelligent capacitor

Abstract

The invention discloses a multipurpose low-voltage intelligent capacitor. The multipurpose low-voltage intelligent capacitor comprises a first power capacitor, a second power capacitor and a temperature sensor between the first power capacitor and the second power capacitor, so that reactive power compensation is achieved. For achieving the multipurpose and intelligent effect, the multipurpose low-voltage intelligent capacitor further comprises a small breaker connected with a three-phase power grid, a hurl-slices switch, a microprocessor system, a liquid crystal displayer, signal indicator lights, an RS485 interface communication module, a key configuration module and the like, and the low-voltage intelligent capacitor can be obtained by connecting the modules correspondingly. The multipurpose low-voltage intelligent capacitor can monitor relevant parameters of the power grid in real time, and the relevant parameters can be displayed by the liquid crystal displayer and the signal indicator lights. The multipurpose low-voltage intelligent capacitor is powerful in function, wide in application, suitable for reactive in-place dispersion compensation, reactive centralized compensation and low-voltage reactive in-place grouping compensation, and wide in application prospect.

Description

technical field [0001] The invention relates to the field of power supply network control, in particular to a multi-purpose low-voltage intelligent capacitor. Background technique [0002] Under normal circumstances, electrical equipment not only needs to obtain active power from the power supply, but also needs to obtain reactive power from the power supply. If the reactive power in the grid is in short supply, the electrical equipment will not have enough reactive power to establish a normal electromagnetic field, then these electrical equipment will not be able to maintain the work under rated conditions, and the terminal voltage of the electrical equipment will drop, thus It affects the normal operation of electrical equipment, so it is particularly important to intelligentize, integrate, and safely and reliably compensate reactive power in the power grid. The traditional reactive power compensation device consists of a low-voltage intelligent reactive power compensation...

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Problems solved by technology

[0003] The technical problem solved by the invention is to protect the instantaneous inrush current and overvoltage of the high temperature and the frequent action of switching switches during the reactive power compensation operation of the capacitor, so that the reactive power compensation capacitor can be monitored and compensated more humanely.

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