Question

Given: A 30V DC linear motor has an output power of 5kW with overall efficiency is...

Given: A 30V DC linear motor has an output power of 5kW with overall efficiency is 95% when it has reached steady-state.

a. When the rail is at steady-state speed, determine the current, electrical power lost in the rail resistance, rail resistance (Rrail) and induced voltage (EIND).

ISTARTUP= __________

b. When voltage is first applied to the rails (with speed at zero, so EIND = 0V), determine the start-up (inrush) current.

I = __________

Pelec loss = __________

Rrail = __________

EIND = __________

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