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  • Users: advidana
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  1. advidana

    grid tie solar electricity with optimizers and inverters what would reduce the dc input voltage

    The Grid tie solar system a house was design to be overdriven for maximum continuous solar power during daylight cycle. The utility is 120/240 VAC single phase system 200 amp service. It has a 76kw SE7600-US Solaredge inverter with 28 Solaredge P320 power optimizers mounted externally on the...
  2. advidana

    Short circuit or electrical fault

    Does any known who made the point to point method of calculating faults and in what year. This method is some times called in LICE method. Other times it is called the direct method. It is shown in The IEEE Gray Book (IEEE std 241-1990). The tables are found in busman guide books and other...
  3. advidana

    Simple Power flow calc

    Hello : I need information on performing a small power flow from a 3000 ft radial underground 12kv line to two small office bldg 5000 sq foot each. The client wants the study done with software. I don't think he wants to model the complete utility system serving this bldg but maybe so. But I...
  4. advidana

    50 hz systems

    utility power source 380/220 vac, 3 phase, wyn 50 hz with neutral. Question-is the neutral normally grounded in countries outside of the USA, such as the middle east for this type of power.
  5. advidana

    book on controls

    I have been training electrical engineers at different companies. What I need is some information on finding a simple book that covers relay logic, ladder logic and controls using magnetic coils. I am not looking for programable control information. I found that young engineers in thier late...
  6. advidana

    Telephone grounding

    does anyone know a good source for explaining communications grounding per nec 800-20 and ansi 607 on a multi-level building with telephone boards on each floor.
  7. advidana

    Electrical spec div 16 for low voltage controls

    what is the difference between CSI spec and Master Spec and spectext or are they all the same. Any information would be helpful, I am not not concerned at this time which is the best. I just need the basic souce information and how I can ID the different so I can to comply with different...
  8. advidana

    nfpa 99

    Does assisted care living fall under nfpa 99 Health Care Facilities for electrical requirements.
  9. advidana

    how do I plot files

    how can I plot files to an hp 330 Plotter from an existing plot file using AutoCad LT 98, 0r LT 2000, or LT 2002 or do I need a third party or the full version of autoCad.
  10. advidana

    Metal Fence under transmission line

    What is standard engineering practice for distance between ground rods when grounding a fence that run parallel along a power line (USA). Say typically a power line of 44 kv or higher, mounted at +60 ft above ground, mounted on single concrete poles that are grounded at every pole. Fence is...
  11. advidana

    hp plotting going from AutoCad 14 to 2002,2002 and 2004

    I was stuck in AutoCad 14 because my hp 330 plotter plots by a different method in Autocad 2000+(2000,2002,2004). These versions do not use "hpconfig" command and I could not get 24x36 and 30x42 inch plots from autocad 2000+. Well the solution was simple after seaching over 4,300...

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