Animation Of Electric Fencing Working Principle

In this instructional video presented by Zareba®, the leading producer of electric fencing supplies in North America, we delve into the dynamics of electric current flow on a fence to elucidate the operational process. Commencing at the fence charger, electric current is supplied to the system via either an AC power outlet or a battery on a DC or solar charger. This current undergoes amplification through a sequence of transformers within the fence charger, wherein the electricity is converted into a higher voltage charge. This elevated voltage charge is subsequently released to the fence lines through the charger's fence terminal post and wire connection.

Fence chargers are meticulously designed with two external terminals to deliberately establish separation in the electric circuit. The "hot" fence terminal serves as the entry point for electricity into the fence circuit, and the circuit is completed as the current is gathered by the ground rods and transmitted to the ground terminal through the connecting ground wire.

The ground terminal on the charger proves to be equally crucial in delivering an effective shock to animals, complementing the importance of a robust output voltage from the fence charger. The primary goal of the charge emanating from the fence charger on the fence line terminal is to identify the shortest connecting path to the ground terminal, thereby completing the circuit.

Consequently, the fundamental objective of an electric fence system is to permit only one successful point of circuit completion for the current. This achievement occurs when an object, such as an animal, a branch contacting the wire, or even a person, makes simultaneous contact with both the "hot" wire and the earth. Notably, this explains why birds do not experience electric shocks on fence lines, as they lack a contact point with both the wire and the earth.

In essence, the intricate interplay of components in an electric fence system aims to ensure a controlled and effective circuit completion, enhancing the security and functionality of the fencing setup.