Marine electrical distribution system and control engineering of a ship

2. IT IS THE ALLAH WHO SUBJECTED
THE SEA TO YOU.THAT SHIP MAY SAIL
THROUGH IT BY HIS COMMAND ,THAT
YE MAY SEEK OF HIS BOUNTY,AND
THAT YE MAY BE GRATEFUL
(Al-Quran Surat Jasiya 45: R12)

3. Pakistan National Shipping
Corporation
Marine Engineer Apprentice

4. Marine Electrical Distribution
System

5. Marine Electrical Distribution
System
 InsulatedDistribution System
 Earthed Distribution System

7. 2nd Earth Fault

8. 3 Phase 4 Wire

9. One Line diagram

10. Basic design criteria further

11. Balance and Unbalanced Load
Calculation

12. Generator Parts

13. Marine HV Cable

14. PNSC Electrical work
Code List
 l1 repairs to electrical machinery such as
motors, generators, switchboard etc
 l2 repairs to deck machinery (electrical)
 l3 repairs to equipment
 l4 repair to instruments
 l5 spare parts required to be manufacture
 l6 damage repairs

15. ShortCircuit and Earth Meter
Reading

16. FAT, SAT and HAT

17. Contactor and Breaker

18. Switchboard

19. Star Delta Starter for
Compressor Motor

20. Lightening Distribution

21. Do Some Power
Calculation ?
Series Circuit
Parallel Circuit

22. Control Engineering

23. Cotrol Engineering
 PLC (Programmable
Logic Controller)
 DCS

24. Environmental Proctection
Where IP means Insulation Protection

25. Electrical and Electronic Shop
 Overhauling, dismantling and assembling AC motors
 Overhauling, dismantling and assembling DC motors
 Generators of floating craft
 Besides you can also learn about the followings
 Magnetic contactor
 Solenoid valve
 Limit switch
 Pressure switches
 Level sensor
 Thermostat
 Electro-pneumatic transducer
 Float switch
 Star and delta motor starter
 Wiring of generator
 Power distribution in ship
 Fluorescent tube light
 Mercury lamp, Halogen lamp, Sodium lamp and it ballast

26. Contactor

27. Limit Switch

28. Float Switch

29. Solenoid Valve
On Boiler MT SWAT

30. Printed Circuit Board (PCB)

31. Bimetal Thermal Overload

32. Push Button and Selector
Switch
Push Button Selector Switch

33. Thermostat
Check the point of contact Check the electrical conn

34. Electroinc time and Selector
Switch

35. Checking the meggar of Three
phase motor

36. Fluorescent Tube Circuit

37. Relay and Soleniod

38. CAPAC and MGPS

40. Engine Room

41. Author Introduction
ZEESHAN AHMED, Marine Engineer
. After doing FSc(pre-engineering)
from PAF(fazaia) intermediate
college Lahore cantt. I joined
Pakistan Marine Academy and
choose Marine engineering branch.
Two years of training at academy
(practical + theoretical)
we learned a lot of thing like CNC
(computerize numeric code), trained
on various models (like control valve, solenoid valve, flow meter, refrigeration system,
CPP propeller, Main engine model (TWO stroke), Boiler model (water tube)
……………………………….. in GEK (general engineering knowledge) lab,
Mechanical and physics lab, Engineering workshop. ETC . After two years, we joined
PNSC workshop for the training of ONE year Industrial training. That was also the
golden time where we learnt a lot of things at different shops as well as onboard
(repairing and watch keeping). I learn many thing on tanker E.g. MT Johar (learn how
to dismantle turbine rotor from casing and what are the precautionary measurement
while working on turbine, learn how to change the diaphragm(stationary blade) Plate
type heat exchanger gasket change, shell and tube Cooler Anode replacement and
(Cont.)

42. Introduction (cont.)
cleaning of SALT WATER tubes etc.) , MT Swat (major thing which I learn in Swat is how
to dismantle head of main unit and copper gasket replacement with a minor facing defect
which is found during overhauling which is filled and faced by Belzona) , MT
Lahore(About the DEAD MAN ALARM, Alpha lubricator for Cylinder Main Engine Unit,
Pump operation and watch keeping), MT Quetta(Auto load sharing of Generator Set, MT
Karachi (Dry washing of the main engine turbocharger with granules, water washing of IG
Fan of Inert Gas system, sludge removal of from purifier(centrifuge) etc., . One thing I
want to added is that the trend in ship building is more toward based on electronic and
electrical application. So a marine engineer must strong in automation, instrumentation
and control system. PLC (programmable and logic control) and SCADA (supervisory
central access and data acquisition) are the upcoming technology that are using on
modern ship. The latest engine of MAN B&W is based on Camless technology. Chain is
removed ; fuel pump and exhaust valve actuation is control by hydraulic servo(lub) oil
which is driven by Axial piston pump mounted on the Fly wheel.
Regards,
Z.A.

43. Author contact information
 zeetec4@yahoo/gmail/hotmail.com
Social networking sites.
 Facebook: mariner46
Website: zeetec4.googlepages.com
Any question and suggestion are welcome