Interested to Buy Any Domain ? << Click Here >> for more details...
1) in a ship where do we get the earth is connected to?
2) in a 3 phase supply where does the neutral is connected
to in a ship normally?
3) how does we make the best 24v dc wiring for the ship at
the bridge panels which mostly work on 24v dc voltage and
how do we differentiate its wiring from ac wiring?
4)what is a synchronizer and why do we need it compulsory
in a ship?
5) in a blackout condition how does a ship get its back up
power?
- 5 Answers
- 13485 Views
- Ethiopian Maritime, FM, Focus, I also Faced
- E-Mail Answers
Answer Posted / rob
1. The earth is connected to the ship's hull.
2. The neutral is isolated in a ship, NOT connected to the hull. Therefore it is necessary to have two earth faults before the protection breaker will open. This is for safety purposes so there is not a blackout (all systems dead) when a earth fault occurs.
3. Question is unclear. Usually there is a dedicated 24VDC distribution system from batteries and charging system.
4. It is needed to parallel the generators during change-over so a blackout is not necessary.
5. Emergency generator must start within 30 sec of blackout.
| Is This Answer Correct ? | 25 Yes | 4 No |
Post New Answer View All Answers
is there is any shore job for B.E.MARINE ENGINEER from d.m.e.t./m.e.r.i.?
I want to get or know the interview questions often ETOs are asked .
Name different types of marine diesel engines?
Explain the functions of paring disc and flow control disc in purifier and clarifier?
Explain the difference between mitsui man b&w and hitachi man b&w engines?
What is a motor bike c.c.?
A steel column 3 m hight is of hollow square section, 200 mm outside dimension and 20 mm wall thickness. (young's modules E=210*10^9) calculate A: the compressive load which will give a stress of 60 MN/m^2 in column. B: the compression o the column under the load in (A).
Give an example each of a shipboard use of an adiabatic process and an isothermal process?
What is high temperature corrosion?
Define crankshaft explosion?
What is the advantage and disadvantages have the small amount of super heat for the refrigerant vapors entering the compressors suctions?
What is meant by ‘superheat’?
Define velocity ratio?
hi, i have completed my b.e. marine could u pls suggest me some job site for marine engineering?
what is slip and what is the principal of axial pump
