A twin-transductor forms a potential divider across two taps of an input autotransformer, one side of which is connected to the load and the other to the incoming mains supply. A solid-state amplifier continuously monitors the output voltage across the load and this is compared against a highly stable reference voltage. Any error is amplified and directly coupled to the isolated control windings on the transductors, thus altering the voltage across the load and reducing the error to zero. The transductors are not susceptible to damage from short circuits or voltage surges and the amplifier operates at a low voltage and current levels.

The BE voltage stabiliser has full transverse mode interference suppression as standard, this will suppress any spikes, transients or noise between line and neutral and line to line to a harmless ripple. For full common mode noise and spike suppression the BE stabiliser can be supplied with a double wound isolating transformer which will eliminate any potential difference, spikes, transients and noise between earth and neutral as well as earth and line.

Over two hundred models span ratings from 300VA to 860kVA output ratings, single or three phase, incorporating full transient spike and noise suppression fitted as standard.