We are a Manufacturer of Industrial Servo Voltage Stabilizer in Delhi and Supply all over India. Voltage variation is a common phenomenon across the world, esp. in developing and under-developed nations. Voltage variation manifests in many different ways Low voltage or sages: sags might be due to undersized distribution lines, the connection of a large load to the network, ground faults, units located towards the end of a long supply line, etc High voltage or surges: surges might be generated by disconnection of large loads, increases in voltage, atmospheric events, units located close to the start of a supply line, etc. Unbalanced voltage: Phase-to-phase unbalancing in voltage is generally observed where multiple consumers draw power from a common distribution line or in remote locations far from the power grid. The duration of the above phenomena depends on the cause and is not easily predictable. Generally, voltage is low during the daytime and high during the night hours. Moreover, on holidays, peak hours, rainy days, and when the commercial/ agricultural load is switched off, the voltage rises quite sharply.