This course teaches participants to understand the cranes mechanical system and its demand for physical quantities like power, torque, speed, acceleration etc. It provides general understanding of AC motor theory as well as AC converter power electronics. It enables the participants to size the complete electrical drive systems for crane
Sales Engineers, Business Developers, HW/SW engineering personnel
This course content is:
Mechanical crane system, drum, gearbox, pulley, load, hoisting and lowering. Calculation of physical quantities like speed, power, torque, acceleration and deceleration.
Brakes: drum-brake and disc-brake for hoisting gear, built-on holding brakes for travel gear. Safety aspects. Dimensioning of brakes.
AC motor theory
AC motor dimensioning: Intermitted duty, overload capability, temperature de rating. Overview of Siemens motor range for crane application
AC converter theory. SINAMICS S120 / G120 product family. Power infeed concepts with BLM, SLM, ALM or AC/AC power modules. Application manuals: drive selection, common mode oscillation and their effects on motor windings
SINAMICS sizing, physical aspects
Pre conditional to this course is a degree in electrical engineering