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A "star delta starter" is a device used to reduce the starting current drawn by a three-phase induction motor by initially connecting the motor windings in a "star" configuration (lower voltage), allowing it to accelerate to a certain speed, then switching to a "delta" configuration (full voltage) to deliver full power once the motor is running at a substantial speed.A star delta starter is a device that can be used to start three-phase motors. It's often used in pumps, compressors, fans, blowers, and textile and paper mills. How it works •A star delta starter has a switch with three positions: off, star, and delta.•When the switch is in the star position, the motor's windings are shorted, and the motor starts rotating.•As the motor speeds up, the switch is moved to the delta position, which activates the delta connection.•The motor then runs in delta connection and reaches its rated speed.Applications •Pumps: Reduces water hammering effects in large pumps•Compressors: Limits starting current in high-power applications•Fans and blowers: Prevents excessive inrush current•Textile and paper mills: Ensures smooth motor operationGuidelines •Ensure all connections are fully tightened•Check that shorting links are intact and tightened•Check that the control fuse carrier is intact•Check that the MCB is in the "on" positionA star delta starter user safety manual provides instructions on how to use a star delta starter safely to prevent injury, damage. It also includes information how to install the starter. Safety tips •Ensure all connections are tight•Check that the shorting links are intact•Ensure the control fuse carrier is intact•Ensure the thermal overload is adjusted correctly•Isolate and lock off the input power supply before working on the starter•Use a voltage tester to prove the starter is deadInstallation tips •Mount the starter on a vertical wall or plate free from vibrations•Use proper cable glands to ensure dust proofing•Connect the incoming and outgoing cables as per the wiring diagramP