Trying to understand the intent of the standard and how to reference or correlate part numbers and specifications within the Material List. Traditionally for a Material List I've seen column headings of: Item, Qty, Cage Code, Dwg/Part Number, Description, Specification. In the Mil-environment...
I'm somewhat unfamiliar with the process below and am not sure what it really means or if it is even correct.
3Hp motor; 3Ph; 415V; 84%Eff; 0.8pf
The problem started by:
(3Hp * 0.7457 * 0.8pf)/(415V * sqrt(3) * 0.84) = 3.0A [Active]
(3Hp * 0.7457 * sqrt(1-0.8^2))/(415V * sqrt(3) * 0.84) =...
I'm trying to understand Active/Reactive/Apparent ampacities. A 415V3Ph 15kW load with 0.8pf, the Active Current : 15,000/(415*1.732*0.8) = 26A. How would I calculate the Reactive Current? Would the Reactive Current be calculated : 15,000/(415*1.732*sqrt(1-pf^2)) = 35A. The resultant...
I'm not sure if this is the correct forum to ask this but I'm looking for a "kit" to install an ammeter to detect any ground currents in the neutral>ground connection of an existing panelboard. I've contacted the manufacturer of the panel and they do not have any such kits or products. The...
Hypothetical Question...I have a delta wired three phase power panel with a series of single phase loads that total 100kVA phAB, 200kVA phBC, 300kva phCA. How do I determine the resultant 3 phase load and the equivalent generator needed to supply the panel? There was a rule of thumb method...
