Lo scenario
A three-phase induction motor starts in star configuration to limit inrush current, then automatically transitions to delta after a preset timer delay when the motor reaches sufficient speed.
Cosa contiene questo disegno
Leggi le decisioni che ne stanno alla base.
01
Use a timer relay to control the star-to-delta transition
02
Separate contactors for main, star, and delta connections
03
Include latching start circuit to maintain main contactor after start
Reuse for industrial motor starters, pump control panels, compressor drives, and any three-phase motor requiring reduced-voltage starting.