The present invention relates to a
power quality controller capable of intermittently connecting to a circuit to measure
voltage, comprising a main body component and a mounting component, wherein the left end of the main body component is connected to an adjustment component, the mounting component is located above the main body component, and a
voltage measuring component is installed inside the main body component, wherein the
voltage measuring component comprises a battery, a third wire, a second heating
resistor, a jacket, a lifting
electrode, a
voltmeter and a first terminal. The beneficial effects of the present invention are as follows: the
power quality controller capable of intermittently connecting to a circuit to measure voltage can perform collision buffering and automatic reset, the device is convenient for installing and fixing additional equipment, the device can automatically adjust the resistance value of the shared
resistor when the voltage is enhanced, thereby reducing the voltage increase of the
power quality controller and reducing damage to the device, the device can intermittently measure voltage and increase the service life of the
voltmeter, and the device can reduce the bending of the wire and protect the wire.