The Potential to Ground in a 480 Volt, 3 Phase, 3 Wire, Grounded Delta System

What is the potential to ground for L1 and L3 in a 480 volt, 3 phase, 3 wire, grounded delta electrical system?

Is the potential to ground different for L1 and L3?

The Potential to Ground for L1 and L3

The potential to ground for L1 and L3 in a 480 volt, 3 phase, 3 wire, grounded delta electrical system is 480 volts.

In a 480 volt, 3 phase, 3 wire, grounded delta electrical system, the potential to ground for L1 and L3 is 480 volts. This is because in such systems, the voltage across any two lines is identical to the potential to ground.

In an electrical system such as a 480 volt, 3 phase, 3 wire, grounded delta, the potential to ground is typically calculated based on the line voltage. In this particular type of electrical system, the voltage across any two lines (L1, L2, or L3) is identical, thus that is the same as the line voltage to the neutral or ground.

For L1 and L3, the potential to ground would therefore be the same as the line voltage, which in this instance is 480 volts. It's important to note that in these kind of grounded delta systems, the grounded wire serves as a safety measure, ensuring that the potential to ground in an active live wire (L1, L2, L3) is never more than the line voltage.