What is power triangle?
Power Triangle is a right angled triangle whose sides represent the active, reactive and apparent power. Base, Perpendicular and Hypogenous of this right angled triangle denotes the Active, Reactive and Apparent power respectively.
What is power factor in AC discuss power triangle?
Summary. A power triangle shows the relationships among apparent power, real power, and reactive power in an AC circuit. The power factor of a load in an AC circuit is the ratio of real power to apparent power. The power factor is the cosine of the phase angle between the voltage across and the current through the load …
What is relation between active reactive and apparent power?
Active power does do work, so it is the real axis. The unit for power is the watt (symbol: W). Apparent power is often expressed in volt-amperes (VA) since it is the product of RMS voltage and RMS current. The unit for reactive power is var, which stands for volt-ampere reactive.
What is a impedance triangle?
Impedance Triangle is a right angled triangle whose base, perpendicular and hypotenuse represents Resistance, Reactance and Impedance respectively. It is basically a geometrical representation of circuit impedance.
What do you mean by power factor?
Power factor (PF) is the ratio of working power, measured in kilowatts (kW), to apparent power, measured in kilovolt amperes (kVA). Apparent power, also known as demand, is the measure of the amount of power used to run machinery and equipment during a certain period. It is found by multiplying (kVA = V x A).
What is the relationship between active power and frequency?
Frequency of an electric system depends on the active power balance. If a generation-load active power imbalance occurs, the frequency will either increase or decrease, thus moving away from its nominal operating value. In order to control the frequency the active power balance must be restored.