BRAINCAKEPower Station Alternators
A power station alternator (a.c. generator) is made of 3 sets of stationary coils (stator) at 120° to each other and a rotor - an electromagnet than spins in the middle of the coil. The electromagnet is connected to a d.c. supply and induced an alternating e.m.f. in each of the coils. The three e.m.fs are out of phase with each other by 120°.
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More in Electromagnetic Induction
- Solenoid
- Lenz's Law
- Faraday's Law of Electromagnetic Induction
- The Alternating Current Generator
- Back e.m.f.
- Transformers
- Transformer Efficiency
- The National Grid
All 12 lessons in Electromagnetic Induction · All OCR A-level Physics topics