power analysis

  1. D

    how calculate the energy use for starting a 3 phase motor until return to normal work?

    hello everyone , for a project i must calculate the exact energy that used for start of motor until the motor return to normal work in other words how much energy use for normal work of this motor equals the starting energy ? the motor is 3 phase 20 Ampere 9KW unfortunately i have no complete...
  2. B

    Solar emergency light/fan circuit help needed

    Hello great team! I'd immensely appreciate the help of brilliant minds out here. I've Solar rechargeable emergency unit that can power 2 lights and a small table fan. The unit stopped working with a blown resistor on the circuit. I did try replacing the resistor with an identical color coded...
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