Voltage regulators are the most reliable solution to the problems associated with voltage variations in the electrical network.
Electric power suppliers guarantee the correct supply voltage. However, failures on the lines, atmospheric phenomena, repeated variations in load and disturbances produced by the users themselves, do not make it possible to guarantee each of them a constant voltage, which respects the nominal value and the tolerance margin of 10% provided for in supply contracts. Often this tolerance is insufficient for the most sensitive users. In other cases, the line voltage reaches levels that are 15%, 20% or even 30% above the rated value.
Increasingly, there is a reduction in the quality level of electrical power made available to the end user.
Voltage stabilizers guarantee users a perfectly regulated voltage.