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  1. Doggie

    12RJHO 3 stage vertical turbine pump questions

    fredb - Once again, Thanks for your response. After I posted my last note I noticed this problem with my equations. I was however assuming around .9 eff motor and we did back out about .84 - .88 power factor at the pumps. But I do have some good news on this situation. About 1 foot or so...
  2. Doggie

    12RJHO 3 stage vertical turbine pump questions

    fredb - Thank You for responding and helping me out! I guess I was just confused on the equations you gave me b/c I was using some I found in my old thermo book that are as follows: Wpump,shaft = Wpump,u / eff(pump) = rho*V*g*h(pump,u) / eff(pump) and Welect = Wpump,u /...
  3. Doggie

    12RJHO 3 stage vertical turbine pump questions

    Hello all: I am new to this forum. I am no pump expert and am just beginning a project involving nothing but pumps. I have so many questions and would greatly appreciate some good advice. I am trying to figure out what our pumps in the cold well are actually putting out (GPM). Sounds easy...
  4. Doggie

    Telecommunications Earth

    Check the ITU 27K standards at www.ITU.com Hope this will help
  5. Doggie

    BS eart electrode resistance

    Could somebody tell me where I can find the final resistance value an earth electrode should reach? Former BS where stating it, but now is everything confusing... The sites I have to protect are Telecom's RBS (small antennae sites) power supplies, and there is a lot of confusion regarding the...

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