Delta 3-Phase 4-Wire System (120/240V)

This video discusses a 120/240V Three-Phase Four-Wire Delta System. Although uncommon you may still find these systems in existence.

The B phase is center-tapped and grounded to provide more available voltages. Voltage from Line A to Ground is known as the high-leg.

The code rules referenced in the 2018 Canadian Electrical Code are 4-032 4) and 5)

3-Phase Delta Connections Playlist: https://www.youtube.com/playlist?list=PLQS5IUr7LE39FV1VshUKaekwwg7u7qTDW

0:00 Intro
2:16 Phasor Diagram
4:34 High-Leg Voltage
6:07 Installation Considerations and Rules

#Delta #4wire #grounded

Видео Delta 3-Phase 4-Wire System (120/240V) канала Zack Hartle