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
- 13683 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
Describe the vibration of machinery which is not apparent?
Explain the different between gate valve and globe valve?
Explain the purpose of o-ring, wearings in the centrifugal pumps?
is there is any shore job for B.E.MARINE ENGINEER from d.m.e.t./m.e.r.i.?
what is characteristic of a good written constitution?
describe the principal features of a positioner
What is high temperature corrosion?
What is the C.C in motorbikes?
what is the full form for MAN B&W engine which is as follows - 6ESDZC 34/82
What is specific fuel consumption and how fuel calculate?
Difference between gate valve and globe valve?
describe excessive vibration of a machinery that not always apparent? state and explain that the vibration are transmitted from elastic materials or components to another?
In Australia what is minimum qualifications if the ship has two Main Engines each engine is 2400HP and each engine has its own shaft and propeller. Rgds_____Robert
Explain magnetic amplifier?
Why o-ring, bearings are used in the centrifugal pumps?
