General supply voltage problems exist two cases:

A) voltage instability, the peaks and valleys, remain volatile.
B) long-term sustained low or high voltage. The two situations are not conducive to electrical equipment (appliances) of the normal operation of electrical equipment could easily lead to severe burning of. Supply voltage problems are generally three reasons.
1) Power generator voltage regulator device problems, resulting in the output voltage problems. These are generally small hydropower.
2) The power Isolating Transformer substation or distribution station performance problems, especially the aging of serious disrepair.
3) the total electricity consumption within the region far beyond the power supply load, resulting in continued low supply voltage, there will be serious and even low frequency power supply so that large-scale power grid failure!

If the power supply voltage instability problems in the supply network for a long time problem, you should select the regulator; If the voltage is low or high should continue to choose the regulator or regulators to resolve.

Home regulator works

By the home regulator voltage regulator circuit, control circuit and servo motor and other components, when the input voltage or load changes, the control circuit for sampling, comparison, amplification, and then drive servo motor rotation, the position of the regulator to change the carbon brushes , by automatically adjusting the coil turns ratio, so as to maintain output voltage stability. Larger capacity regulator, also uses the principle of voltage compensation work.

Home regulator Category

--- Non-compensated auto-type power supply (single phase 0.5kVA ~ 3kVA) smaller capacity, there is 110V output voltage.
Compensation Compensation --- power supply (single phase 5kVA vertical and over) compensate for Power line Conditioner, no 110V output.

The main technical parameters of home regulator

Regulator input voltage range 150V ~ 250V

Regulator output voltage 220V or 110V

Regulator over-voltage protection value of 246V ± 4V phase voltage 246V ± 4V (subject to phase voltage)

Regulator voltage accuracy ± 1-3%