1 kVA (kilovolt-ampere) is a unit of apparent power used in electrical systems. It represents the total power, both real and reactive, that is used in an electrical circuit.
To break it down:
- **1 kVA = 1,000 VA (volt-amperes)**.
- It measures the combination of both active power (real power) and reactive power in an AC circuit.
- The "k" in kVA means "kilo," so 1 kVA is 1,000 volt-amperes.
### Difference Between kVA and kW:
- **kVA** is the total power supplied, including both active (useful) and reactive (non-working) components.
- **kW** (kilowatt) is the useful power, or real power, that actually does the work (e.g., running a motor or lighting a bulb).
For purely resistive loads (like heaters), the power factor is 1, and kVA equals kW. But for inductive or capacitive loads (like motors or transformers), the power factor is less than 1, meaning the kW will be less than the kVA.
In short, 1 kVA is a unit used to measure the total power supplied to a system, and it is related to real power (kW) based on the power factor.