Calculate Size of DOL Star-Delta Starter Parts

Size of DOL _  Star Delta Starter Parts
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 Calculate Size of DOL ~ Star Delta Starter Parts

This document summarizes the specifications for a 3 phase induction motor used in a household application with a star-delta starter. The motor is 10HP, 380V, 750 RPM, with an efficiency of 80%. It has a full load current of 14A line and 8A phase. The overload relay is set between 6-10A to protect the motor. The contactor has a making capacity of 21A to safely switch the motor during starting.

Calculate Lock Rotor Current.

Calculate Motor Starting Current.

Calculate Motor Full Load Current.

Calculate Non-time Delay/Time Delay fuse Size.

Calculate Circuit Breaker Size.

Calculate Overload Relay setting.

Calculate Type of Contactor.

Calculate Size of Main Contactor.

Calculate Size of Star Contactor.

Calculate Size of Delta Contactor.

Standard Arrangement of Main and Auxiliary Contactor.

Title : Calculate Size of DOL ~ Star Delta Starter Parts

Type : Microsoft Excel Spreadsheet (xlsx)

Size : 261 KB 


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