Marine engineering paralleling of generators

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Marine engineering paralleling of generators

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Marine engineering paralleling of generators

  1. 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)
  2. 3. Marine Engineering Paralleling/Synchornizing of generators
  3. 4. Synchronizing or paralleling of generators <ul><li>Start the incoming generator </li></ul><ul><li>Check the voltage and frequency of the generator. </li></ul><ul><li>When the synchroscope will between 12 o clock to 5 o clock </li></ul><ul><li>And synchronizing lamp revolve slowly clockwise. </li></ul><ul><li>Close the air circuit breaker (ACB). </li></ul>
  4. 5. Note <ul><li>The incoming generator voltage and frequency must be greater then busbar voltage and frequency to prevent reverse power relay trip. </li></ul><ul><li>Always close the ACB when the synchroscope is between 12 to 5’o clock.clockwise. </li></ul>
  5. 6. Author Introduction <ul><li>ZEESHAN AHMED , Marine Engineer </li></ul><ul><li>. After doing FSc(pre-engineering) </li></ul><ul><li>from PAF(fazaia) intermediate </li></ul><ul><li>college Lahore cantt. I joined </li></ul><ul><li>Pakistan Marine Academy and </li></ul><ul><li>choose Marine engineering branch. </li></ul><ul><li>Two years of training at academy </li></ul><ul><li>(practical + theoretical) </li></ul><ul><li>we learned a lot of thing like CNC </li></ul><ul><li>(computerize numeric code), trained </li></ul><ul><li>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.) </li></ul>
  6. 7. Introduction (cont.) <ul><li>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. </li></ul><ul><li>Regards, </li></ul><ul><li>Z.A. </li></ul>
  7. 8. Author contact information <ul><li>zeetec4@yahoo/gmail/hotmail.com </li></ul><ul><li>Social networking sites. </li></ul><ul><li>Facebook: mariner46 </li></ul><ul><li>Website: zeetec4.googlepages.com </li></ul><ul><li>Any question and suggestion are welcome </li></ul>

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