ERROR MESSAGE IN ETAP - Electric power & transmission ... - Eng …
Apr 16, 2024 · Electric power & transmission & distribution ... Swing node (grid), buses and branch energised. Upvote 0 ...
Which is a better power analyses software, ETAP or SKM
Apr 23, 2007 · I have experienced with three power system analysis software, ETAP2.5 (1000 buses), MIPOWER & EDSA (1000 buses). I found ETAP is very good for distribuion sector & EDSA is good for generation/transmision & distribution. But, i think price wise ETAP ($14500) is cheapper than EDSA. Thanks
IEEE C37.32 Table 5 Phase-to-phase spacing - Electric power
Apr 20, 2009 · I have few questions regarding IEEE standard C37.32-1996 Table 5. For a 69kV system the table gives centerline-to-centerline phase spacing for Rigid Busses as 60 inches, but for rigid conductors it requires the phase spacing metal-to-metal as 31 inches. If I have surge arrestors, or PTs, or...
Bus bar bracing - Electric motors & generators engineering
Jun 21, 2006 · I braced the bus bar on about 2 feet intervals meaning supported to frame front and back. I was referring to the distance between insulators. Most of our applications are low voltage, 480 down. The question is: Is there a table (other than the one I have) that will give me insulator centers based on bus sizes and spacing between buses edge up?
Service Entrance Rated Vs Non service Entrance Rated - Electric …
Oct 9, 2017 · There's not much difference. In the US, a marking of "service entrance rated" means it has overcurrent protection and that the neutral bus and ground bus are bonded together.
Three Winding transformer - Electric power & transmission
Feb 20, 2003 · With big steam turbine and two aux buses, voltage control on the aux buses will be very dificult, if you will use three winding Xfr. However, in industrial power plants, where generator connect directly to aux and factory bus( 6.6kV or 11.5kV) with cogeneration to grid, Three winding Xfr, for my pinion, is good solution. Best Regards. Slava
RCCB Tripping On Ship - Electric power & transmission ... - Eng-Tips
Aug 4, 2008 · dpc: I will have closer look at the buses on the distribution boxes tomorrow once I am back at work. What is really strange for me is that two seperate distribution boxes have this problem, but they have independent cables running from the switchboard including individual neutral supplies (they do end up on the same neutral bar in the main ...
Arc Flash Include/Exclude Main - Electric power ... - Eng-Tips
Mar 16, 2009 · Obviously there is an opening between each of the cabinets for the bus to get from the Main to the feeder cabinets. In order for the main breaker to be "included" or be considered "isolated and barriered", does this penetration need to be sealed around each of the buses with no air gaps? Here is a layout of the panelboard from the example above:
ETAP error 101-01 - Bus base kV is 40% different from Nominal kV …
Jul 11, 2014 · Hi all, I am now using ETAP for the second time in my life, so I am not really used to it. I have added some busses to an existing system, but when I try to solve the flow ETAP gives me this message, saying that many busses base voltages differ more than 40% from the nominal voltages. The...
Surge and Lighting protection - Electric power & transmission ...
Feb 9, 2007 · The second failure also blew the 15amp buses on the pole and in the transformer box along with alot of circuit boards, controls, motors, and other expensive equipment. The cause of this failure is not yet known but it could have been a …