Variacs

Scope

All those applications that require a continuous variation of alternating voltage, both single-phase and three-phase, from zero to maximum, with high resolution and constant intensity.

Description and manufacturing series

Autotransformer for voltage variation wound on a toroidal core with graphite brushes.

Standard single-phase versions of 127V from 160 to 7000VA, 230V from 160 to 11000VA and 400V from 500 to 10000VA, manual or servomotor control. For higher powers, the necessary inverters are connected in parallel.

Standard three-phase versions of 3*230V from 480 to 21000VA and 3*400V from 480 to 33000VA, star connection, manual or servomotor control. For higher powers, the necessary inverters are connected in parallel.

Special reduced dimensions