Servo Stabilizer is the equipment which provides constant output voltage to load. Generally, it has been observed that there is never a constant supply of voltage (230V in Single Phase or 415V. in 3 Phase)in AC Main Supply. Usually, it varies from 150V-300V and 300V to 500 Volt. Hence, due to which the severe conditions can emerge like Over Load Conditions, Heavy Line Losses, Poor Power Factor, Problem of Machinery Damage, and many more. Generally, during daytime the connected load is more to main supply and hence there is dip (low voltage) and in night time the voltage supply is more as the connected load decreases. Due to such fluctuations in AC main supply it results in frequent breakdown, low production and also loss of energy. Nowadays, Power Companies insist the consumers to install the Servo Stabilizers to improve power factor and the life of the machinery, to get the better results in power saving. But Voltage is also important factor to save the power loss. Technically it has proved that Transformers, Motors and all other machines works very efficiently and with minimum breakdown at constant voltage supply of 415V or 400V. Hence, installing Servo Stabilizer is useful not for minimum breakdown and life of machinery installed but also for the power saving in high time of huge energy crisis all over the world. The entire load can connected to one single Servo Stabilizer or can be installed according to the individual machine's requirement. But the cheaper idea would be to install One Servo Stabilizer for entire load.