Short Circuit Current Calculator

Formula

The formula to calculate the Short Circuit Current (Ishort) is:

\[ I_{short} = \frac{V}{R_{short}} \]

Where:

\(I_{short}\) is the Short Circuit Current (amps)
\(V\) is the voltage (volts)
\(R_{short}\) is the resistance during short circuit (ohms)

What is a Short Circuit?

A short circuit occurs when the resistance drops to a very low value, causing a large current to flow through the circuit. This can result in overheating, damage to electrical components, and potential safety hazards. Understanding and calculating the short circuit current is essential for designing protective measures and ensuring the safety of electrical systems.

Example Calculation

Let's assume the following values:

Voltage (V) = 120 volts
Resistance during Short Circuit (Rshort) = 0.1 ohms

Using the formula to calculate the Short Circuit Current (Ishort):

\[ I_{short} = \frac{V}{R_{short}} = \frac{120}{0.1} = 1200 \text{ amps} \]

The Short Circuit Current (Ishort) is 1200 amps.