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Thanks guys, Following the comments of brian134 what I get is = (1131.78 + j641.41) when I transform it to polar, what I get is 1300.9 = 29.54 °, and COS (29.54 °) = 0, 87 which coincides perfectly with the vectorial composition of the active current, reactive and apparent, no problem with...

Hi Everybody! I took some measures from a 1250_kW@480_V generator: P:941_kW PF: 0.87 I know that the apparent power has two components (active and reactive power) is why I am assuming that the current measured with a clamp, TC, etc. is the apparent current so if I multiply the apparent...

Thanks power0020. To karls2: The yellow arrow indicates that a bare wire leaving the network there. Importantly, the drawing is intended to show only the underground portion of the system, so that the yellow arrow only serves to indicate the place where the cable comes to the surface, not where...

I usually include in my drawings the standard used for the symbology, but right now I'm drawing the plan view of a grounding system and the symbols for underground bare wires, exothermic welds, inspection wells that I am using are taken from drawings I saw in the past from others engineers...

Hi everyone, I am interested in trying some grounding designs using the method of Howe. For some reason, this topic is hard to find and I have not seen a numerical example of the determination of the coefficients, so I was wondering if anyone here knows a good book or documents about it and...

I totally agree with you and really appreciate your comments, We will propose relocating the line. Thanks!

A customer called us because they have a pressure reducing station (Natural gas). It is located in the open and on it goes a 13.8_kV distribution line. The client is concerned about the possibility of an accident if one of the lines fall on the gas station, so the customer wants to place a...

Hi everyone! Our client is going to install a CO2 new plant; therefore they requested us install a main power distribution switchboard with service mains. Immediately I started to design the panel and I chose a 1250_A, 480_V, 45kA low voltage power circuit breaker as the main disconnect device...