Relay Burden Calculator

Formula

The formula to calculate the Relay Burden (RB) is:

\[ RB = I^2 \times 2 \times D \times R \]

Where:

\(RB\) is the Relay Burden (volts)
\(I\) is the current (amps)
\(D\) is the length (meters)
\(R\) is the resistance (ohms)

What is Relay Burden?

Relay Burden refers to the voltage drop across a relay due to the current flowing through it, the resistance of the relay, and the length of the conductor. It is an important parameter in electrical engineering to ensure the proper functioning of protective relays in power systems.

Example Calculation

Let's assume the following values:

Current (I) = 10 amps
Length (D) = 50 meters
Resistance (R) = 0.1 ohms

Using the formula to calculate the Relay Burden (RB):

\[ RB = 10^2 \times 2 \times 50 \times 0.1 = 100 \text{ volts} \]

The Relay Burden (RB) is 100 volts.