Micro conelec industries manufactures and offers voltage control units for servo voltage stabilizers. These units control the output voltages, trips under fault conditions and also display i/o voltages and load currents of the three phases simultaneously on a single lcd panel. Besides imparting sophistication to the stabilizer, the controllers greatly reduce control wiring and make the whole stabilizer manufacturing process much more efficient and simplified. The integrated controllers eliminate control and delay pcbs used in the conventional stabilizer. Control transformers are also provided in the controller. Software running on a micro controller monitors the entire value fault tripping conditions and trips the output on occurrence 0 for i tripping fault. The status of faults is also displayed on the lci con panel. Electronic overload tripping feature auto/manual with the switches on the front panel for inc/dec. Detection and tripping marl due to single phasing and phase sequence failure is also includes upi single contactor is required for all the tripping faults. Detachabl13-pil parameter setting panel makes the controller versatile and flexibcon1 for use with various capacities and voltage ranges