Download Aptitude Crack
img not found img not found

Power Electronics - Engineering

Q1:

The two modes of operation of three phase bridge inverters are known as

A 60° mode and 120° mode

B 90° mode and 120° mode

C 120° mode and 180° mode

D 120° mode and 240° mode

ANS:C - 120° mode and 180° mode

In 180° mode each thyristor conducts for 180° and in 120° mode each thyristor conducts for 120°.