 |
 |
 |
| |
|
|
7.3 3-PHASE CIRCUITS
x9¸9ø93-phase circuits are common in large scale power generators and delivery systems.
These systems carry 3 phases of voltage, each 120 degrees out of phase, on three separate conductors. If these three wires are connected through a balanced load the sum of currents is zero. Most systems provide a fourth wire as a neutral.
As a result loads can be connected in a delta configuration with no neutral.
| |
|
|