Marine Electro Technology | Guide | Notes | Book

       It is a complete guide for Marine Electricity. This is a good collection of notes prepared in the purview  of Marine exams in  a simple and easy understandable language with  bullet points.

      As it is impossible to answer all questions at a time it is done on timely basis. please comment below or contact on admin@marinesite.info, once you find any important area, missed out.  Also contact us, if you wish to answer any of the questions listed

Basics

> Basic Terms In Marine Electricity

> Basic Laws In Marine Electricity

> Difference Between A/C & D/C? Why AC is Preferred onboard ship

> Active Power, Apparent Power, Reactive Power

> Power factor and its significant 

Layouts & Components

> Electrical Power Distribution System Onboard Ship

> Insulated & Earthed Neutral System

> Open circuit, Short circuit And Earth faults  

> What is Fuses, Use, Types, Functions

> What is circuit breaker and its functions

> Difference Between circuit breaker and fuse? 

> Shore Supply or Cold Ironing or Alternate Power (AMP) 

> High voltage system on ship, Safeties, Advantage, Disadvantage 

Generators (Alternators)

> Generator Basic Principle & Components

> How Breshless Alternotor Works with circuit diagram

> Parallel Operation Procedure for Marine Diesel Generators 

> Synchroscope Working & Construction

> Reverse Power Flow, Motoring Effect And Reverse Power Relay

> What Planned maintenance is done on a generator?

> Procedure for Alternator Overhaul

> Why is it necessary that the Incoming Generator Frequency is More than the Busbar?

> Why does we prefer to close the switch at 11'o clock and not at 12'o clock

> What is Tie breaker? How emergency generator and main generator connected 

> Explain Governor Droop Why it is required

Transformers

> What is Transformer? Principle Types

> What are the losses in Transformer

Motor

> Motor Principle and Types

> A/C Motors Principle Working & Types

> Difference Between A/C & D/C Motors? 

> Difference between Synchronous & Asynchronous Motor? 

> What is single Phasing? Causes, Effect And Protection

> Why Motor rating in KW and Transformers are given in KVA 

Starters
> What is Starter? Why do we Need Starter? 

> Draw and explain Direct Online Starter

> Draw and explain Star Delta Starter 
> Draw and explain Auto Transformer Starter

> Explain Soft Starters

> Maintenance on starters

 

Battery
> Basics Of batteries that You should Know

> Lead Acid Batteries Working & Construction

> Battery Charging, Trickle Charging 

> Inspection And Maintenance Of Battery Room 

> Safety Arrangements in Battery Room 

Safeties

> Safety precaution During any electrical Work 

> Preferential Trip With a simple diagram, Location and sequence of tripping

> Ship Earth Fault Indicators Working With simple Diagram

> Safeties on MSB and ESB 

> Steering gear Motor Safeties 

> Type of Explosion protection For electrical equipment (Intrinsic)

> Safeties on crane

Troubleshooting 
> What are the Reasons For Generator Voltage Fluctuation?

Miscellaneous 

> Insulation resistance check or Megger test Procedure with circuit diagram