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  1. Ring Bus | Eng-Tips

    Jan 10, 2005 · I am a journeyman meterman with a utility. I want to learn about ring bus substation configuration and how to meter it with solid state meters. We currently use 2 types …

  2. Bus vs Line | Eng-Tips

    May 17, 2012 · Quick Q. What is the difference between Bus and Line? Would Bus be the transmission line entering a substation/switchyard and Line be the lower voltage cable inside …

  3. High-Impedance Bus Differential with Overcurrent Protection

    Apr 13, 2009 · Differential is very common on bus protection. High impedance bus differential is typically used to protect against an unwanted operation of the bus protection during a close in …

  4. Minimum spacing between bus bars. | Eng-Tips

    Feb 17, 2009 · Table 408.56 gives information on minimum spacing between bare metal parts. I have 600V systems and clearance between two bus bars is just 3/8 inch! (should have been 1 …

  5. Ring Bus or Breaker and a Half? | Eng-Tips

    Aug 29, 2023 · Kiribanda-What limits the practical maximum number of terminals on a ring bus in your area? I my area, stations with fiver or six terminals are more likely to be configured as …

  6. Busbar Clearances | Eng-Tips

    May 5, 2009 · If the switchgear or bus section can be taken out of service and grounded as a unit, then the clearance between its individual phases is an engineering decision*. The clearances …

  7. Bus Bar Sleeves in Switchgears | Eng-Tips

    Aug 13, 2024 · Do you utilize bus bar sleeves for MV/LV switchgear? What are the advantages and disadvantages of the following options? 1) Epoxy-coated 2) Heat-shrinkable (Polyolefin, …

  8. 11kv Ring main | Eng-Tips

    Jan 4, 2022 · Any main switchboard bus coupler would be open, so the ‘ring’ operates as two separate radial circuits. In the event of a fault, the breaker in the 11kV board would trip, …

  9. Electric boiler and zig-zag transformer | Eng-Tips

    Jan 27, 2011 · We have a preliminary design to install a zig-zag transformer and neutral grounding resitor to give us an "artifical" neutral. Two questions: 1)Is this a correct application …

  10. Why Don't Electric Fuel Pumps Catch Fire? - GlobalSpec

    Apr 14, 2009 · Good Answer: All fuels have a range of fuel air ratios in which they will burn. H2 has one of the widest ranges and goes from about 4 H2 to about 96 H2. Most fuels have quite …