38
Synchronous Generators — Alternators
OBJECTIVES
In this chapter you will learn about:
- The difference between d.c. generators and alternators
- The physical construction of a.c. machines
- Slot structure in a.c. dynamos
- Coil and pole group connections
- Stator windings
- Pitch factor and distribution factor
- Alternator performance at various load power factors
- Voltage regulation of an alternator at various power factors
- Winding resistance and synchronous impedance
- Equivalent circuit of a synchronous alternator
- Basic voltage generation formula
- Requirements for parallel operation of alternators
- How to meet these requirements
- Different methods of synchronization
Slot structure in alternators
38.1 INTRODUCTION
Alternating current dynamos are ...
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