ETO ETO Exam papers 📅 Dec 2024

Exam Question

With Respect to Insulated and Earthed Neutral Systems used on board:

(a) Discuss the Advantages and Disadvantages of both the Insulated and earthed systems used onboard. (8)

(b) What is Earth fault and how do you identify Earth fault in the 440V system onboard. (4)

Reference Answer

(a) Advantages and Disadvantages of Insulated and Earthed Neutral Systems Onboard
Insulated Neutral System
Advantages:
A single earth fault does not interrupt the supply, allowing essential equipment to continue operating. This is crucial for maintaining critical services like steering and propulsion.

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