Electric switching device

A method for manufacturing an electric device, the method comprising:

• providing a first voltage sensor configured to sense a first voltage at a first contact of a switch inside the electric device and to generate a first voltage signal indicating the first voltage, the first contact of the switch coupled to a source line;
• providing a second voltage sensor configured to sense a second voltage at a second contact of the switch and to generate a second voltage signal indicating the second voltage, the second contact of the switch coupled to a reactive component;
• providing a current sensor configured to sense a current at the second contact of the switch and to generate current signal comprising a current or voltage output signal indicating the current;
• providing an actuator;
• and
• providing a controller coupled to the first voltage sensor and the second voltage sensor, the current sensor and the actuator, and configured to cause, based on at least one of the first voltage signal and the second voltage signal and the current signal, the actuator to actuate one of the first contact and the second contact to execute switching at a predetermined point of the first voltage, wherein the reactive component comprises a capacitor, wherein the controller is further configured to determine a capacitive condition of the capacitor based on the current signal sensed at the second contact.