Electrician engineer work tester measuring voltage and current of power electric line in electical cabinet control.


What is an electrical circuit? A circuit is simply a closed loop through which charges can continuously move in a current.

What is an unbalanced current? When a current flows on the grounded (neutral) conductor of a multi wire circuit.

What does  grounding mean?  Grounding is the process of removing excess charge that is on an object by means of transferring electrons between it and another object of substantial size. When a charged object is grounded, the excess charge is balanced by the transfer of electrons between the charged object and a ground. A ground  is capable of neutralizing the charge by transferring electrons to or receiving electrons from a charged object.

What are some different kind of circuits?

A single phase Circuit-

-In the US, 120V is the standard single phase voltage with one 120V power wire and one neutral wire. This is what the most common power circuit is in our day to day life. There is typically one power wire and a neutral wire. Power flows between the power wire (through the load) and the neutral wire.

A Dual/split phase Circuit-

-Dual Phase power is also Single Phase because it’s a two wire Alternating Current (AC ) power circuit. In the US, this is the standard household power arrangement with two (Phase A, Phase B) 120V power wires (180 degrees out of phase with one another).

A 3 Phase Circuit-