Q4. With reference to preferential tripping in a marine electrical distribution system.
A. With the aid of a sketch, describe a typical arrangement to provide three stages of tripping an instantaneous protection against short circuit.
B. State why this protection is required;
Q3. a) What is the purpose of preferential Tripping system on ship's electrical network? (6)
b) Explain the various stages of preferential trips with the loads connected to those stages. (10)
Username or email address *Required
Password *Required
Note: Entering wrong username in the login form will ban your IP address immediately. Entering wrong password multiple times will also ban your IP address temporarily.
Log in
Lost your password? Remember me
No account yet?
