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  • Users: oresakri
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  1. oresakri

    Suggestions for device to test mccb

    Hello everybody, i am interesting in buying a device to test MCCBs (Moulded Case Circuit Breakers), especially for Instantaneous overcurrent trip test. Any suggestions for devives? Is Sverger 780 suitable to do it?
  2. oresakri

    Inrush current and cable size

    Hello! I designed an outdoor LED Street Lighting with 8 poles, 2kW total. When sizing the cable I chose to use a 5x10mm2 cable (for voltage drop). Each pole has two lamps with the following data. Power consumption at dimming:120 W Inrush current: 47.2 A Inrush time: 600 ms Driver current: 700...
  3. oresakri

    Sulfuric acid corrosion resistant coatings for Motors

    Hello guys, I am going to coat Iron Motor Shell to protect it from Sulfuric acid. What do you suggest as the best coating considering corrosion resistance? many thanks to everyone!
  4. oresakri

    Inability control LP and HP steam on Back Pressure Turbine

    Hello, It is observed that on a back pressure turbine we cannot control extraction and exhaust pressure. Particularly when extraction pressure is out of control exhaust pressure is stable. But when extraction pressure is in control ιt is observed oscillations on both pressures. Any ideas what...
  5. oresakri

    Suggest suppliers in Europe for high pressure water pump driven by diesel engine.

    Hello Guys, I am interested in find a high pressure water pump driven by diesel engine. Could you suggest me suppliers in Europe?
  6. oresakri

    Suggest suppliers for Automatic Voltage Regulator

    Hello Guys, I am interested in replacing an Automatic Voltage Regulator of Synchronous Generator 6MVA. Could you suggest me suppliers in Europe?
  7. oresakri

    Right sizing of condenser

    Hello, We would like to change the size of condenser of the existing installation. Which factors should we take into account? Also what are the EN 12900 and ARI rating conditions?
  8. oresakri

    Difference between Excitation Limiters and Protection

    Hello Guys, Limiters do not replace the protection system but only prevent the protection system from tripping unsecessarily under extreme transient conditions. But how the limiters and protection system cooperate? The limiters operates faster than protection for the same fault condition?
  9. oresakri

    Compare Excitation Systems

    Hello Guys, I study a generator (5 MVA) with an old Static Excitation System. I plan to change the Excitation System with a new model. Which parameters should be compared between new Excitation models (ceiling voltage, ceiling current, Response Ratio), such that i can arrive at a decision...

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