Electrical equipment of thermal power plant

Electrical equipment used in thermal power plant  :

1. 1. Alternators
   2. Transformers
   3. Switchgear
   4. Exciter

Alternators

1. 1. • Each alternators is coupled to a steam turbine & converts mechanical energy of the turbine into electrical energy.
      • The electrical output from the alternator is delivered to the bus bar through transformer.
      • The alternators may be hydrogen or air cooled.

Alternators

Transformers

A generating station has different types of transformers, are as follows:

1. 1. • Main step-up transformer which are used for generation voltage for transmission of power.
      • Station transformation which are used for general service in the power station.
      • Auxiliary transformer which supply to individual unit auxiliaries.

Transformers

Switchgear

1. 1. • Switchgear sense the abnormal conditions in the electrical network & isolate faulty part from the healthy  section. It contains circuit-breakers, relays, switches & other control devices.

Switchgear

Exciter

1. • Exciter is a dc compound generator and mounted on the same shaft of the steam turbine and generator.
   • It continuously supply the field winding of the alternator.