Major disadvantage of using three sets of SCRs for variable voltage speed control of a SCIM is the

Long delay of thyristor firing pulses

Major disadvantage of using three sets of SCRs for variable voltage sp

1.	Major disadvantage of using three sets of SCRs for variable voltage speed control of a SCIM is the
A.	Considerable I2R loss
B.	Poor power factor
C.	Long delay of thyristor firing pulses
D.	Necessity of using a processor
Answer» B. Poor power factor