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  1. vtpwringeniero

    Combined Cycle Plant Efficiency

    Thanks to all who replied. You've helped. Best Regards, vtpwringeniero
  2. vtpwringeniero

    Combined Cycle Plant Efficiency

    I'm looking for efficiencies based on electrical output and heat input and, a measure of efficiency based on electrical output + heat for process as compared to heat input. One formula that I've come across is: % eff = [{(Rated kW)(3412BTU/kWh) + BTU/hr recovered for process)}/Heat input in...
  3. vtpwringeniero

    Combined Cycle Plant Efficiency

    Hello all, I'm trying to get some idea of the electrical efficiencies that one might realistically expect to achieve with combined cycle plants consisting of two GT's and one steam turbine and, having an overall capacity rating of 60 MW or less. Has anyone had any practical operating...
  4. vtpwringeniero

    Transformer no load losses

    Thanks. I'll get a copy of the 1999 version to update our file.
  5. vtpwringeniero

    Transformer no load losses

    To the best of my knowledge, the factory tested this new unit according to IEEE std C.57.12.90-1993. I've made some further inquiries of TX manufacturers over the past few days. All agree that no-load loss distributions such as shown above occur routinely and that it's the total that matters...
  6. vtpwringeniero

    Transformer no load losses

    Recently, my company purchased a 3 phase, 3 legged core transformer. High side volts: 4,160 delta, low side volts: 600Y/346 x 480Y/277, nominal capacity: 3650 KVA. The unit is silicon filled. The test report showed the following: Exciting Current no load losses Phase...

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