Power capacitor with overcurrent self-cutoff function

Abstract

The invention discloses a power capacitor with an overcurrent self-cutoff function. The power capacitor includes a capacitor body, an insulating medium, a first aluminum sheet electrode, a second aluminum sheet electrode, a first high temperature protection tube, a second high temperature protection tube, a first high temperature wire, a second high temperature wire, a first contact, a second spring, a first spring, a second contact, an insulating head, an insulating shell, a bimetallic strip, a shell cover, a shell, a heat dissipation fan, a display, a control switch, an electrode stem, a shell cover movable groove and a fixed plate. The power capacitor has an overcurrent self-cutoff function, thereby avoiding failure of the power capacitor, and achieving a function of protecting an electric appliance, when currents are recovered, the power capacitor can be automatically switched on, the service life of the capacitor is prolonged, the capacitor is equipped with an intelligent heat dissipation device which can detect the temperature of the capacitor and can dissipate heat of the capacitor, and the power capacitor is very simple to install and dismount, is convenient to operate, canbring convenience to people, is simple in structure and facilitates popularization.

Description

technical field [0001] The invention relates to a power capacitor, in particular to an overcurrent self-cutting power capacitor. Background technique [0002] Power capacitors, capacitors used in power systems and electrical equipment. Any two metal conductors separated by an insulating medium form a capacitor. The size of the capacitance of the capacitor is determined by its geometric size and the characteristics of the insulating medium between the two plates. When the capacitor is used under AC voltage, its reactive power is often used to represent the capacity of the capacitor, and the unit is var or kvar. However, the existing power capacitors cannot automatically cut off the circuit when the current is too large, so as to protect the circuit. When the current becomes small, the circuit can be restored, and the power capacitor cannot be intelligently dissipated. Moreover, the installation of the power capacitor is very inconvenient. Replacement is also very complicat...

AI Technical Summary

Problems solved by technology

However, the existing power capacitors cannot automatically cut off the circuit when the current is too large, so as to protect the circuit. When the current becomes small, the circuit can be restored, and the power capacitor cannot be intelligently dissipated. Moreover, the installation of the power capacitor is very inconvenient. Replacement is also very complicated, and the service life is low, which brings inconvenience to people

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