All electrical and electronic systems are designed and manufactured to operate at maximum efficiency with a given supply voltage, called the nominal operating voltage.
For various reasons the voltage of the energy distribution does not remain constant, showing considerable fluctuations in the nominal value, which leads to the apparatus, not only a loss of efficiency (sometimes even the impossibility of operation), but also a significant increase in failure rate.
The stabilizers are electronic devices responsible for correcting the voltage of the electrical power supply to provide a stable and secure power supply to equipments, allowing for a stable voltage and protecting the equipment from most of the problems of the mains.
Like UPS, voltage stabilizers are an asset to the protection of electrical and electronic equipment.
The main function of a stabilizer is to make the output voltage that feeds the equipments connected to it as much as possible equivalent to the ideal electrical power supply, ensuring that the oscillations in electrical power are offset, and its output maintain a stable value, preventing them from being experienced by equipments and thereby avoiding their damage.
Most stabilizers also have electronic filters whose purpose is to suppress noise and peak voltage.
A voltage stabilizer:
Increases useful life of equipments;
Reduces malfunctions rate of equipments;
Maintains a stabilized power supply;
Attenuates noise, interference and lightning;
Protects against under-voltages and over-voltage of the mains;
Operates in cases of overloading and overheating;
Signals events from the mains.
The voltage stabilizer is an efficient solution of moderate cost, recommended for those who want to protect their equipment (hardware) against variations (oscillations) from voltage, spikes and noise present in mains.
Nothing is more important for electronic equipment than a filtered, protected and stable power supply!