How to differentiate between the various types of stabilizers?
A. Well, tap switches are smaller, more efficient, more able to provide for large, short-duration current demands, and can be cheaper in some cases. On the other hand, Servo electronic stabilizers tend to be more suited to the large three-phase installation, although an ongoing maintenance program would be imperative. Ferrous are probably more reliable and have better noise filtration. In the size required by PCs, the difference between tap switches and ferrous shrinks to insignificance. Arguments range between rivals in the industry, but the customer will make his or her determination more on price than on any other criterion. This is where ferrous having a big edge. To date, it tends to be cheaper to build a Ferro than an electronics tap charger for personal computer systems. As power requirements increase, and particular three phase requirements, the disadvantages of ferrous grow. This tilts the scales in favour of tap switches and even more so in favour of electronic stabilizers.
