United States / English Electrical Systems Illustrations
Illustrations of the most common medium voltage and low voltage electrical distribution systems used in North America.
Medium Voltage
The most widely used medium voltage (2.4 to 35 kV) alternating current (AC) electrical distribution systems.
Three phase wye (star), three wire
Three phase delta, three wire
Three phase star, four wire, grounded neutral
Low Voltage
Typical low-voltage systems (0 to 2,000 V).
Three phase wye (star), three wire, grounded neutral
Three phase delta, four wire, grounded neutral
