Power Factor Formula:
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The power factor of an AC electrical power system is defined as the ratio of the real power absorbed by the load to the apparent power flowing in the circuit. It is a crucial parameter in power systems that indicates how effectively electrical power is being used.
The calculator uses the power factor formula:
Where:
Explanation: This formula calculates the power factor by considering the relationship between transmitted power, current, and maximum voltage in a 2-Phase 3-Wire US underground AC system.
Details: Accurate power factor calculation is essential for optimizing power system efficiency, reducing energy losses, improving voltage regulation, and ensuring proper equipment sizing in electrical distribution systems.
Tips: Enter power transmitted in watts, current in amperes, and maximum voltage in volts. All values must be positive numbers greater than zero for accurate calculation.
Q1: Why is power factor important in electrical systems?
A: Power factor indicates how effectively electrical power is being used. A low power factor results in higher energy losses and inefficient power usage.
Q2: What is considered a good power factor value?
A: Ideally, power factor should be as close to 1 as possible. Values above 0.95 are generally considered good, while values below 0.85 may indicate poor power efficiency.
Q3: How can power factor be improved?
A: Power factor can be improved through power factor correction techniques such as adding capacitors to the system, using synchronous condensers, or optimizing motor loads.
Q4: What causes low power factor?
A: Low power factor is typically caused by inductive loads such as motors, transformers, and fluorescent lighting that create reactive power demand.
Q5: Are there different types of power factor?
A: Yes, there are displacement power factor ( caused by phase shift between voltage and current) and distortion power factor (caused by harmonic distortion in the system).