Is voltage regulation positive or negative?

The referred value of primary voltage Vo (NL) is beyond the arc, so it is bigger than the secondary voltage Vo (FL), which means the voltage regulation calculated by equation (1) is positive for an inductive case. For any current that lags the secondary voltage by 0 to 90o, the voltage regulation will be positive.

Why is voltage regulation necessary?

The voltage regulator is needed to keep voltages within the prescribed range that can be tolerated by the electrical equipment using that voltage. Voltage regulators also are used in electronic equipment in which excessive variations in voltage would be detrimental.

Can voltage regulation be greater than 100?

NO, you can not achieve more than 100\% efficient. . . . Yes you can have DC to DC converters, that can give out a higher voltage than the input voltage. . . But they are not called voltage regulators.

What happens if voltage regulation is high?

Voltage that is too high can cause premature failure of electrical and electronic components (e.g. circuit boards) due to overheating. The damage caused by overheating is cumulative and irreversible.

What is positive voltage regulation in electronics?

Positive voltage regulation is the action of controlling positive supply voltage. e.g. If you are trying to provide clean supply (I.e. No noise or ac content) to a microprocessor that works on 5 V or 1.8 V, then this is positive regulation. Not all electronic circuits work on one positive supply and ground.

What is the relationship between voltage regulation and power factor?

Voltage regulation is always positive for lagging power factor load and E f is always increasing. For obtaining the maximum voltage regulation load power factor angle (φ) must equal to impedance angle (ϴ).

What is voltage regulation in Transformers?

For transformers, voltage regulation can be defined as the ratio of the difference in the secondary voltage from no load to the full load to the full load voltage. When referring to a transformer as having say 5\% regulation, it means that the voltage variation between no load and full load is 5\% assuming constant primary voltage.

Is it normal to calculate voltage regulation at 50\% load?

It is normal to calculate regulation at 50\% load, 80\% load etc. However, the worst case is usually the full load. Note that only the voltage magnitudes are considered. The phase angle of the voltage is not a factor in the regulation equation.