What Is the Difference Between Kva and Kw?
Quick Answer
While both kVA and kW are units of measure, kVA is a kilo volt amperes and kW is a kilowatt. Both the kVA and the kW are units used to express power.
Continue ReadingFull Answer
kVA is known as the apparent power of an electrical system or of a particular circuit. In direct current circuits the kVA is equal to the kW because the current and the voltages do not get out of phase. However, "real power" and "apparent power" differ in their alternating current circuits so kW is the amount of actual power that does valid work where only a fraction of kVA is available and accessible to do work while the rest is in excess in the current.
The relationship between kVA, kW and the power factor is described mathematically as: kW = kVA x power factor; kVa = kW/power factor; and power factor = kW/kVA. In DC circuits, there is no difference between the kVA and the kW because of the power factor. The power factor leads or lags depending on the way that the load shifts the phase of the current compared to the phase of the voltage. This creates a unity in the DC circuits. In AC circuits, voltage and current may get out of phase leading to a difference in kW and kVA that will be based on the power factor (or how much leading or lagging occurs).
Learn more about ElectricityRelated Questions
-
Q:
How Do You Convert Amps to KVA?
A: In order to convert amps, short for amperes, into kVA (Kilovolt-ampere), current in amps and the voltage in volts has to be multiplied and then divided by ... Full Answer >Filed Under: -
Q:
What Is Current Measured In?
A: Electrical current is measured in amperes. The unit symbol for ampere is "A," without the quotes. The dimension symbol for electrical current is "I," also ... Full Answer >Filed Under: -
Q:
What Is MVA Power?
A: Megavolt amperes (MVA) power is a unit used for measuring apparent power. The apparent power refers to the total current and voltage in an electrical circu... Full Answer >Filed Under: -
Q:
What Is Electric Current Measured In?
A: Electric current is measured in amperes, commonly shortened to "amps." Electric current is the flow rate of charges in a circuit. Electric current is also ... Full Answer >Filed Under:
You May Also Like
-
Q:
What Is the Difference Between Distance and Displacement?
-
Q:
What Is the Difference Between a Urologist and Nephrologist?
-
Q:
What Is the Difference Between Sequential and Random Access?
-
Q:
What Is the Difference Between AKC and ACA?
-
Q:
What Is the Difference Between the Citizens and the Sovereign According to Rousseau?
-
Q:
Why Is Wind Energy Important?
