Recent content by pushpull

  1. P

    Voltage drop along cable

    You have given cable Z of 0.2 ohm/km which is value for 95mm2 This cable has 3ph volt drop of 0.4mV/Am Hence VD = 0.4 *75*350/1000 = 10.5v Volt drop usually is % of voltage at MCC which usually 415v 3% of 415V is 12.45v hence you are below this
  2. P

    Water pumping calculation

    How is following calculated ? Pumping water from river, up a hill 100 metres high, it then runs downhill into a dam. Need to deliver 100 megalitres a day, the pipe will be concrete lined steel and the distance about 25 km. What is total head required from the pump and what is the electrical...