Type 45 Dis + Prop

Question 1

How many generators on type 45?

And what are they driven by?

Answer 1

4 gens
2 driven by gas turbines
2 driven by Diesel engine

Question 2

What do the gas turbine gens produce?

Answer 2

4.160 kV
60 Hz
3 phase
Capacity of 21 MW

Question 3

In normal operation how many gas turbines are operating?

Answer 3

1

Question 4

What does the diesel gens produce?

Answer 4

4.160 kV
60 Hz
3 phase
Capacity of 2MW

Question 5

What’s the purpose of the diesel gens?

Answer 5

Will auto start if the GT output drops below a certain level
Provide power to start the second GT
Provide power for essential systems until the second GT gen is online

Question 6

What does a harmonic filter do?

Answer 6

Ensures the quality requirements for the power supply

Smooth the sine wave of the voltage supply

Question 7

How is the harmonic filters are cooled via what

Answer 7

Air to water heat exchanger

Question 8

What’s an IEP?

Answer 8

Integrated Electric propulsion system

Question 9

IEP is commonly referred to as an…

Answer 9

Integrated electric drive

Question 10

Each propulsion motor has how many phases?

Answer 10

15
Supplied by 2 independent 5 phase converter channels
Contained in the converter regulator