# What is the power factor angle of the load for maximum voltage regulation *?

Contents

## What is the power factor angle of load for maximum voltage regulation?

d(VR) / dƟ2 = 0 assuming load current constant. Here tanƟ2 is positive, which means that maximum Voltage Regulation occurs for lagging power factor load and at a power factor of re2 / xe2. Thus we can say that, maximum Voltage Regulation occurs when load power factor is equal to leakage impedance angle.

## How is power factor related to voltage regulation?

The voltage regulation of the transformer is the percentage change in the output voltage from no-load to full-load. And since power factor is a determining factor in the secondary voltage, power factor influences voltage regulation. This means the voltage regulation of a transformer is a dynamic, load-dependent number.

## What is maximum voltage regulation?

The regulation is maximum when the load power factor angle is equal to the impedance angle of the transformer. i.e., Equation (1.58) shows the power factor of the load at which voltage regulation is maximum.

## What is the power factor of industrial load?

Generally, a power factor of 0.8 or above is considered a good power factor. Lower than 0.8 and it should be corrected to save on consumption and comply with the requirements of the electricity network operator.

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(iii) When the load p.f. is leading to this extent that IXL sin φR > IR cos φR, then voltage regulation is negative i.e. the receiving end voltage VR is more than the sending end voltage VS. (iv) For a given VR and I, the voltage regulation of the line decreases with the decrease in p.f. for leading loads. 2.

## How does load power factor affect the voltage regulation and transmission line efficiency?

Effect of Load Power Factor on Efficiency

three phase. Or I = P ÷ 3VRcos φR. Thus, for a constant amount of power and voltage at the receiving end, the line current is proportional to the load power factor. … Thus, the efficiency of the transmission line decreases with the decrease in load power factor.