Read Sola’s The Cost Effectiveness of Using Buck-Boost Transformers white paper for an analysis of benefits and limitations of using buck-boost transformers in industrial applications.

Excerpt:

Buck-boost transformers are power protection devices designed to protect electric equipment, such as motors and industrial air conditioners, from damage due to improper line voltage. Buck-boost transformers are ideal and economical solutions where the line voltage is consistently below or above the rated load voltage. Their main function is to adjust a line voltage by a small amount (normally 5% to 27%) to match the load voltage. They are commonly used in applications that require boosting of line voltage from 208 V to 230 V and in applications where the nominal voltage is above or below 120 V.

A buck-boost transformer is shipped as a distribution transformer, conversely it can be connected as an auto transformer in numerous ways depending on the voltage and kVA load. Moreover, the transformer connection depends on the supply voltage, load voltage, load kVA and frequency. Buck-boost transformers are used as distribution transformers for low voltage applications such as 12, 16, 24, 32 and 48 V as…>>Read More