To calculate Amps from kVA we use the formulaAmps = kVA x 1000 / Volts For example: If kVA = 4.6 and voltage = 230 then the calculation is 4.6 (kVA) x 1000 / 230 (V) = 20 Amps Convert Amps to kVA Single Phase Amps to kVA calculation: To calculate kVA from Amps we use the fo...
Calculate the transformer secondary load current using the formula: SLC = KVA/(Vsecondary/1000) x 1.73. Continuing with our example: SLC= 1200/(480/1000) x 1.73 = 1200/0.48 x 1.73 = 2500 x 1.73 = 4325 amps Step 3 Calculate the transformer secondary short circuit current using the formula...
Your question is some what vague, assuming you are a consumer, not a manufacturer of transformers. Manufacturers rate transformers with their kVA and voltage, based on a number of manufacturing factors, but I will discuss three of the most relevant --- the insulation system, the conductor syste...
The prefix "milli" means thousandths and "kilo" means thousands. For example, 50 milliamps equals .05 amps, 10 KW means 10,000 watts and 5 KVA means 5,000 volt/amps. Volt/amps and watts actually mean the same thing because wattage equals volts times amps. Warning Don't add watts to ...
kVAi = input kVA = sqrt(3) x Amps x kV. Finally, pf = kWi / kVAi. Note 1: if namplate output rating is in Hp, convert to kW by multiplying Hp by 0.746! If you need greater accuracy, contact me regarding another field procedure for determining the motor's output. Regards, Phil...
If you have only a voltmeter and ammeter - Check open circuit voltage to confirm turns ratio measure output voltage with a resistive load to measure "regulation" Δvolts/Δamps , perhaps some large lamps, or a heating element perhaps a kitchen toaster or small electric heater. Aug 9, 201...