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Recent content by Anode

  1. Anode

    HV motor size (?) for pump

    Hi there, and thanks for the tips. I have managed to track down some of the pump data which was requested. The original pumps specs were: Capacity 2,500 cubic meters per hour (now de-rated to 1800.) Total head is 125 meters Suction head is -5 meters Revolutions 1650 (now 1500 or 1000) Bore...
  2. Anode

    225kW Variable Speed Motor

    Afterhrs, You are right on all counts. I am currently working in a shipyard as a consultant for a tanker (750 feet) conversion. I used to be in the military myself and appreciate the "mil-spec" construction criteria. Thanks for the tips, and to everyone else here who has...
  3. Anode

    HV motor size (?) for pump

    Hi All, Any help or assistance would be appreciated here thanks. We have a centrifugal pump that was originally driven by a steam turbine. The pump has been de-rated to deliver 1,800 cubic metres per hour. (Used to be 2,500) The drive is now to be by a two speed HV electric motor, 6.6kV...
  4. Anode

    I.S. and Power Cabling Segregation

    Hi, My attempts to find an answer on the net has not been successful. Any assistance would be appreciated. What I am after is: What is the minimum distance required between an intrinsically safe/instrumentation cable and 440V AC power cable. Also what should be the minimum spacing between a...
  5. Anode

    Lead Acid and NiCad battery storage

    Hi, Any help with the following would be appreciated thanks. My prior experience with batteries on ships has been that there always is a seperate battery compartment/locker for the lead acid cells and another for the Ni-Cad/Nife cells. I have just recently come across a vessel where the...
  6. Anode

    225kW Variable Speed Motor

    Hi jOmega, The pump is centrifugal and the power supply is 440V 60Hz. Cheers
  7. Anode

    225kW Variable Speed Motor

    Hi All, I was looking into some form of soft starter for a 225kW induction motor on a ship, when the thought of variable speed drive came to mind. As the motor is driving a pump, the thought of being able to regulate the starting current as well as having speed control would be a bonus. My...

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