Question

A delta connected capacitance bank is preferred over a star connected bank. This is done to ensure _________

(a) lesser capacitance

(b) easy calculation

(c) easier connection

(d) all of the mentioned

This question was posed to me in final exam.

Enquiry is from Equivalent Circuit in section Induction Machines of Electrical Machines

Answer 1

The correct option is (a) lesser capacitance

Easiest explanation: Delta connected bank will have lesser capacitance than star connected and so the better power factor improvement.