Voltage Drop Calculator National and local electrical codes may set guidelines for the maximum voltage drop allowed in electrical wiring, to ensure efficiency of distribution and proper operation of electrical equipment. The maximum permitted voltage drop varies from one country to another. In electronic...
Let’s calculate voltage drop in transformer1000KVA,11/0.480 kV, impedance5.75%due to starting of300 kW,460V,0.8 power factor,motor code D (kva/hp). Motor starts2 times per hourand the allowable voltage drop at transformer secondary terminal is10%. Medium-voltage motor starting trans...