Understanding the conversion between volt-amperes (VA) and kilovolt-amperes (kVA) is crucial for electrical engineers. It ensures accurate sizing of transformers, generators, and uninterruptible power supplies (UPS). VA ↔ kVA Calculator Value: Convert: VA → kVAkVA → VA Copy Reset What is kVA? kVA (kilovolt-amperes) measures apparent power, 1 kVA = 1000 VA. Why convert VA … Read more
Electrical engineers and technicians often face difficulties converting watts into volt-amperes for accurate system sizing. Watts indicate real power, volt-amperes measure apparent power; calculators ensure correct UPS, generator, and distribution equipment. Watts (W) → Volt-Amps (VA) Power in Watts (W): Power factor (PF): 0.60.650.70.750.80.850.90.951Other value Other PF (0–1): Switch to VA → Watts Reset Conversion … Read more
Converting watts to kilowatts is essential in electrical engineering, energy management, and appliance power calculations. Accurate kW calculations enable efficient system design, cost estimation, and informed energy usage decisions worldwide. Watts to Kilowatts Calculator Watts (W) → Kilowatts (kW) Calculator Power (W): System: Single-phase AC (L–N)Two-phase AC (L–L)Three-phase AC (L–L)Direct Current (DC) Voltage: 208 V … Read more
Understanding kilowatt (kW) to kilowatt-hour (kWh) conversion is essential for effective energy management strategies. This guide explains calculations for single-phase, two-phase, three-phase systems, including formulas, tables, examples. kW → kWh Calculator Power (kW): Hours of use: System: Single-phaseTwo-phaseThree-phase Copy Share Reset How to calculate kWh? kWh = kW × hours. For multi-phase, the formula applies … Read more
NEMA Design B Electrical Motors Efficiency Electrical motors constructed according NEMA Design B must meet the efficiencies below. Power (hp) Minimum Nominal Efficiency1) 1 – 4 78.8 5 – 9 84.0 10 – 19 85.5 20 – 49 88.5 50 – 99 90.2 100 – 124 91.7 > 125 92.4 1) NEMA Design B, Single Speed 1200, … Read more