Electrical Engineering Problems!!!
*Linear & switching mode power regulators:*
1. What is the major weakness of a Buck Regulator that compared with a Linear Regulator? It's efficiency?
*Passive harmonics filter:*
1. If the filter reactance for harmonics is a negative value, what is the meaning behind that?
*Relation to direction*
2. Passive filter can provide certain capacitive compensation to the ac traction power system. However, when there is off-peak hour, very few trains running in the system. Any problem will introduced by the filter? Energy saving?
Thanks.
*Linear & switching mode power regulators:*
1. What is the major weakness of a Buck Regulator that compared with a Linear Regulator? It's efficiency?
*Passive harmonics filter:*
1. If the filter reactance for harmonics is a negative value, what is the meaning behind that?
*Relation to direction*
2. Passive filter can provide certain capacitive compensation to the ac traction power system. However, when there is off-peak hour, very few trains running in the system. Any problem will introduced by the filter? Energy saving?
Thanks.
