In a delta connected motor, the line voltage is equal to what factor of the coil voltage?

In a delta-connected motor, the relationship between line voltage and coil (or phase) voltage is characterized by the geometry of the delta configuration. In a delta connection, each winding (or coil) connects between two line terminals, creating a closed triangular loop. The line voltage is derived from the voltage across each winding.

For a three-phase system in a delta configuration, the line voltage is equal to the coil voltage multiplied by the square root of three (approximately 1.73). This arises from the nature of phase relationships in three-phase systems, where the line voltage represents the voltage from one phase to another, while the coil voltage is the voltage across each individual winding.

Thus, in a delta connection, the line voltage is indeed equal to 1.73 times the coil voltage, making it critical for understanding how power is delivered and utilized in three-phase motors. This relationship highlights the importance of recognizing the type of connection and its implications on voltage levels, which can be essential for system design and troubleshooting.