Physics · Electrical Machines
Why are most large industrial AC power generation units designed as three-phase synchronous machines?
- 1They give the exact same output size-for-size as single-phase machines.
- 2Three-phase power transmission and distribution is more economical than single-phase power.✓
- 3They produce a non-uniform pulsating torque.
- 4These motors are inherently self-starting.
Correct answer
Three-phase power transmission and distribution is more economical than single-phase power.
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