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INDUSTRIAL ENGINEERS (INDIA), provides overhaul Rewinding, Re-pairing, Servicing for ALTERNATORS  /  GENERATORS. The company has the capability to Rewinding with Repairing, Generators of output capacity up-to 20 MW. Hydro Generators, Synchronous Generators, Turbo Generators.

The definition of alternator is hidden in the name of this machine itself. An alternator is such a machine which produces alternation electricity. It is a kind of generators which converts mechanical energy into alternating electrical energy. It is also known as synchronous generator.

working principle of alternator is very simple. It is just like basic principle of DC generator. And It also depends upon Faraday's law of electromagnetic induction which says the current is induced in the conductor inside a magnetic field when there is a relative motion between that conductor and the magnetic field.

There are mainly two types of rotor used in construction of alternator

  • Salient pole type
  • Cylindrical rotor type

Alternators - Generators
Alternators - Generators
Alternators - Generators

There are mainly two types of rotor used in construction of alternator

Alternators or synchronous generators can be classified in may ways depending upon their application and design. According to application these machines are classified as-

  • Automotive type - used in modern automobile.
  • Diesel electric locomotive type - used in diesel electric multiple unit.
  • Marine type - used in marine.
  • Brush less type - used in electrical power generation plant as main source of power.

Radio alternators - used for low brand radio frequency transmission

Types of Armature Winding of Alternator

Different types of armature winding used in alternator. The windings can be classified as

  • Single phase and poly phase armature winding
  • Concentrated winding and distributed winding
  • Single layer and double layer winding
  • Half coiled and whole coiled winding
  • Lap wave and concentric or spiral winding
  • Full pitched coil winding and fractional pitched coil winding

In addition to these, armature winding of alternator can also integral slot winding and fractional slot winding.