kVAR to Capacitance Calculator
The kvar to capacitance calculator helps you quickly convert reactive power into capacitor values. Use it to size capacitors for power factor correction with accuracy and ease. This tool saves time and ensures efficient electrical system design.
kVAR to µF Converter
How to Use kvar to Capacitance Calculator
Follow these simple steps to use the kvar to capacitance calculator:
- Step 1: Enter Reactive Power (kVAR): Input the required reactive power in kilovolt-amperes reactive (kVAR).
- Step 2: Enter System Voltage (V): Provide the operating voltage of your system in volts.
- Step 3: Enter Frequency (Hz): Input the system frequency (usually 50 Hz or 60 Hz).
- Step 4: Click Calculate: The calculator instantly converts kvar to capacitance in microfarads (µF).
- Step 5: Review Result: Use the calculated capacitance value to select the correct capacitor.
Tip: Always verify voltage and frequency before calculation for accurate results.
Conversion / Calculation Guide
Formula to Convert kVAR to Capacitance
Use this formula:
Where:
- C = Capacitance in microfarads (µF)
- kVAR = Reactive power
- f = Frequency in Hz
- V = Voltage in volts
Step-by-Step Example
Example: Convert 10 kVAR at 400V and 50Hz into capacitance.
1. Write the formula: C = (kVAR × 109) / (2 × π × f × V²)
2. Insert values: C = (10 × 109) / (2 × 3.1416 × 50 × 400²)
3. Solve denominator: 2 × 3.1416 × 50 × 160,000 = 50,265,600
4. Divide: C = 10,000,000,000 / 50,265,600
5. Final result: C ≈ 199 µF
Result: You need approximately 199 microfarads to produce 10 kVAR at 400V, 50Hz.
kVAR to Capacitance Conversion Chart
Assumptions: Voltage = 400V, Frequency = 50Hz
| kVAR | Capacitance (µF) |
|---|---|
| 1 | 19.9 µF |
| 2 | 39.8 µF |
| 5 | 99.5 µF |
| 10 | 199 µF |
| 15 | 298 µF |
| 20 | 398 µF |
| 25 | 497 µF |
| 50 | 995 µF |
Note: Values may change with voltage and frequency.
FAQs about kvar to capacitance calculator
A kvar to capacitance calculator converts reactive power into capacitor value in microfarads.
You need this conversion to select the correct capacitor for power factor correction.
Yes. Higher voltage reduces the required capacitance for the same kVAR.
Yes. Just enter 60Hz as the frequency for accurate results.
The calculator gives capacitance in microfarads (µF).
Yes. It works for both industrial and residential electrical systems.
Incorrect capacitance can cause poor power factor correction or system instability.
Yes. Three-phase systems may use modified formulas depending on connection type. Always confirm system type before calculation.