How is a three-phase motor with six wire leads connected
A three-phase motor with six leads is usually connected in either a star (Y) or delta (Δ) configuration. In a star connection, the ends of the three-phase windings are connected to form a common point, while the start ends connect to the three-phase power supply. In a delta connection, each winding’s start is connected to […]
How to identify 3-phase motor windings
To identify 3-phase motor windings, measure resistance between terminals using a multimeter. Each winding (e.g., U1-U2, V1-V2, W1-W2) should show similar resistance, typically 1-2 ohms for a 7.5 kW motor. Infinite resistance indicates an open circuit. Check continuity to confirm winding groups. Label or Mark Inspection One of the most important things when checking a […]