The formula to calculate the fault current (FC) is:
\[ FC = \frac{V}{R} \]
Where:
Let's say the voltage (\( V \)) is 120 volts, and the resistance (\( R \)) is 0.5 ohms. Using the formula:
\[ FC = \frac{120}{0.5} \]
We get:
\[ FC = 240 \]
So, the fault current (\( FC \)) is 240 amps.
A fault current is defined as the maximum current available at any given point in a distribution system. In the case of a fault, the resistance gets very small, which causes the current to become extremely large. This is crucial for understanding the potential impact of faults in electrical systems and designing protective measures.
Definition: This formula calculates the fault current in an electrical system.
Formula: \( I_f = \frac{V}{Z} \)
Example: \( I_f = \frac{400}{0.5} \)