Main Generator and Auxiliaries

Question 1

List the major function of the Main Generator

Answer 1

Converts the rotating mechanical energy of the turbine into three phase electrical output.

Question 2

List the major function of the Exciter

Answer 2

Exciter supplies the main generator field current.

Question 3

List the major function of the Permanent Magnet Generator

Answer 3

PMG supplies power through the Excitation Field Breaker & Switchgear to the Exciter stator field.

Question 4

List the major function of the Generator Gas System

Answer 4

Provides pressurized Hydrogen gas (H2), circulated through the generator, to remove heat generated by producing electricity.

Question 5

List the major function of the Generator Seal Oil System

Answer 5

The Generator Seal Oil System maintains a pressure boundary around the generator shaft to prevent the H2 from leaking out of the generator.

Question 6

List the major function of the Isolated Phase Busses

Answer 6

Connects generator to Main & Auxiliary Transformers.

Question 7

List the major function of the Isophase Bus Cooling

Answer 7

Forced air cooling removes heat generated in conductors & housing.