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AC Power Chapter 11 INEL 4075 Dr. Sandra Cruz-Pol Professor Electrical Engineering UPRM

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AC Power Chapter 11 INEL 4075 Dr. Sandra Cruz-Pol Professor Electrical Engineering UPRM. AC steady-state Power. Electric complex power Effective values Power factor Coupled inductors Ideal Transformer. Coupled inductors;.

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AC Power

Chapter 11

INEL 4075

Dr. Sandra Cruz-Pol

Professor

Electrical Engineering

UPRM

ac steady state power
AC steady-state Power
  • Electric complex power
  • Effective values
  • Power factor
  • Coupled inductors
  • Ideal Transformer
coupled inductors
Coupled inductors;

*The sign of the M is positive if both currents enter or both leave the coil through the dot.

the ideal transformer
The ideal Transformer
  • N2/N1=n, ratio of turns in primary and secondary coils
  • Voltage at primary is partly induced by secondary current, and vice versa.
ideal transformer
Ideal transformer
  • If both currents enter the dots then use + sign below:
  • If same polarities of the voltages are in both dots, then use + sign below:
transformer for down converting
Transformer for down-converting
  • Converts from high voltage to low voltage to provide power to houses and business.
  • Up-converter is used at the generator source to step-up voltage for more efficient transmission (smaller current)
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