3) What are the different types of VVVF AC drives?
4) What is scalar control?
5) What is vector control or flux vector control? What are the typical application?
6) What is sensorless Vector control?
7) What is PWM Control?
8) What is applied motor rating as specified by AC drive specification?
9) What is rated KVA output capacity?
10) What is rated output voltage?
11) What is the output rated current?
12) What is the rated input voltage & frequency?
13) What is input voltage variation and frequency variation?
14) What is the power factor as claimed by manufacturers?
15) What is input KVA capacity?
16) What is the frequency/speed range?
17) What is frequency stability?
18) What is AC drive efficiency?
19) What is AC Reactor/Line Choke?
20) What is noise filter?