1. What is a kWh to kVA Conversion Calculator?

Definition: This calculator converts energy in kilowatt-hours (kWh) to apparent power in kilovolt-amperes (kVA) using power factor and time.

Purpose: It helps electrical engineers and technicians convert between energy and power units for system design and analysis.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( kVA \) — Apparent power (kilovolt-amperes)
• \( E_{kWh} \) — Energy (kilowatt-hours)
• \( PF \) — Power factor (unitless, 0 to 1)
• \( t \) — Time (hours)

Explanation: The energy in kWh is converted to watt-hours (×1000), then divided by the product of power factor and time to get apparent power.

3. Importance of kVA Calculation

Details: kVA represents the total power in an AC circuit, including both real and reactive power, crucial for sizing electrical equipment.

4. Using the Calculator

Tips: Enter energy in kWh, power factor (default 0.8), and time in hours. Power factor must be between 0.01 and 1. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is power factor?
A: Power factor is the ratio of real power to apparent power, ranging from 0 to 1 (1 being ideal).

Q2: Why multiply kWh by 1000?
A: This converts kWh to Wh (watt-hours) since 1 kWh = 1000 Wh.

Q3: What's a typical power factor value?
A: Industrial loads typically have 0.8-0.9, while residential may be 0.95-1.0.

Q4: How does time affect the calculation?
A: Longer time periods with the same energy consumption result in lower apparent power.

Q5: When would I need this conversion?
A: When sizing transformers, generators, or UPS systems based on energy consumption data.