• Describe the operation of one type of VSD (Variable Speed drive) that you have worked on in the Lab. (there are 3 types of VSD were used which are Siemens Micromaster 420, Telemecanique Altivar 31 and Telemecanique Altistart 48. Choose only one of these and you Mr writer have the right to choose). Instruction manual for these 3 types have been uploaded in your web-side as pdf attachments
• How does it control the speed of the ac induction motor?
• What are the main applications for VSDs in industry?
• What parameters would normally be set when you are setting up a VSD?
• Why is speed control of an electric motor useful in marine propulsion systems?
• Briefly describe one type of marine electrical PEM and the type of VSD associated with it.