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Electrical Formulas for electrical engineers Electrical Formulas DC circuits Electrical formulas: Please enter two values,the other two values are automatically calculated Voltage or volt E or V = volts V Amperage or current I = amperes, amps A Resistivity or resistance R = ohms Ω Wattage or power P = watts W AC circuits Electrical formulas to calculate KVA ,KW,Power Factor, current for single phase and three phase.
Desired Data Single Phase Three Phase KVA Volts x Amps 1000 1.73 x Volts x Amps 1000 KW Volts x Amps x PF 1000 1.73 x Volts x Amps x PF 1000 Power factor KW KVA KW KVA Amperes-When KW is known KW x 1000 Volts x PF KW x 1000 1.73 x Volts x PF Amperes-When KVA is known KVA x 1000 Volts KVA x 1000 1.73 x Volts Current (Amp) I=√(TC-(TA+ ∆TD)) ÷(RDC)(1+YC)RCA) where: TC = conductor temperature in °C TA = ambient temperature in °C ∆TD = dielectric loss temperature rise RDC = dc resistance of conductor at temperature TC YC = component ac resistance resulting from skin effect and proximity effect RCA = effective thermal resistance between conductor and surrounding ambient Current-OHM LAW Current = Volts/Resistant=power/volts Resistance Calculator 1.
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Answer: is what percent of ? Answer: % Free conversion tools LINKS Useful Formulas Notation Resistance Resistances in Series Voltage Division by Series Resistances Resistances in Parallel Current Division by Parallel Resistances Capacitance Capacitances in Series Voltage Division by Series Capacitances Capacitances in Parallel Charge Division by Parallel Capacitances Inductance Mutual Inductance Inductances in Series Inductances in Parallel Time Constants Power Energy Batteries Voltmeter Multiplier Ammeter Shunt Wheatstone Bridge Reference National Electrical Code 2008 http://javascript.internet.com/ Back to Home Page- electrical formulas Privacy Policy-