We are offering auto voltage regulator l.t. Automatic voltage regulatorthese are essentially auto wound transformers having single layer helical - coil mounted on a conventional laminated transformer core. The assembly used consists of self-lubricated graphite rollers, assembled on backelite carrier boards that traverse the length of the coil track. The roller mechanism is driven by the servomotor, which receives its signal from a voltage monitoring ic card on the output side of the servo stabilizer and hence works as a closed loop. Our l.t. Avrs are warranted for 7 years.