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- Third Assistant Engineer (Steam-Motor-Gas Turbine Plants (Unlimited)) »
- Q533 - Gas Turbine Plants
37. What is the power source for the ignition exciter of a gas turbine engine?
The ignition exciter for a gas turbine engine utilizes the ship's 115 volt AC system as its power source, converting it to high-voltage ignition pulses. This AC power is standard for marine applications, unlike 400 Hz aircraft systems or 28 volt DC used for control circuits. Lead-acid batteries are impractical for this high-energy application.
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