Recent content by vwishndaetr

When you say partition, do you meant that in the literal sense, meaning in an assembly, or are you talking for the calculation I have presented? Because the way I have it shown is a literal representation of the present construction. If I drew a 3-line to represent the assembly, it would pretty...

I don't have SPICE. Not a long transmission or any transformers involved either. As mentioned previously this is for a switchgear assembly, so predominantly compromised of bus bars as current carrying conductors, with breakers depending on the configuration. All of my questions essentially...

I've started going through some of those. Can you also share what you would consider a good text reference for AC circuit analysis - preferably one that also covers 3ph circuits?

Ok for sure - let me go back to my initial thoughts. I think the o-scope might be a bit more applicable after I answer my initial question. Right now, this is what I have measured (just looking at A phase): IA1 = 2017A IA2 = 1998A IA was not measured - it's just a sum of the parallel currents...

Yes I am glad you mentioned that! I was also thinking... if I use an o-scope to measure the phase shift, then that should also let me know whether I have a net capacitive or inductive reactance no? I think I can associate the phase shift angle to a reactance value as well. If I remember right...

Thanks for sharing the equation. For an AC current carrying wire, a changing magnetic field is produced that ultimately induces an opposing current in the current carrying wire. So the inductive reactance can exist without external influence. Can the same be said for capacitive reactance? Is...

Switchgear. Maybe I made a mistake by trying to outline some arbitrary numbers. Supply is still 3ph 60 Hz, but more like 10V. Keep in mind, this isn't an installation. I am just trying to wrap my head around some of the theory. So there are no "mains" unless you're referring to the point of...

I am trying to figure something out, but I am in the first step and just trying to get through my "thought experiment". Let's say I have a 480V 60hz 3 phase supply feeding a circuit that comprises of nothing but the conductors themselves (effectively a shorted power supply). Consider the...

Try this. This guy is really good. I used him when I need the exact same problem explained. http://www.youtube.com/user/khanacademy?blend=1&ob=5#p/c/C58778F28211FA19/13/9G0w61pZPig

Nice. Thanks for that. Even though I submitted with a different response, at least I know what the real deal is.

So the 2's pretty much cancel and I am left with the same temp change.

If you're referring to Q = m\ c\ \Delta t Then maybe? If this is the equation, then yes, double the mass would result in double the heat. But does double the heat really result in a same temp change for double the water? I mean, if both water and heat are doubled, delta t would in fact...

This is a question from a lab previously done for my chem class. If you had used 40 mL of water and 6 g of ammonium chloride, rather than the 20 mL and 3g in the experiment, would you expect to get a larger, smaller, or identical temperature change? In the experiment I dissolved 3g in 20 mL...

So it'd be, {E^2} = \sqrt {{E_x}^2 + {E_y}^2 + {E_z}^2} \cdot \sqrt {{E_x}^2 + {E_y}^2 + {E_z}^2} I feel so dumb asking this. Thanks again.

Was a bit fuzzy as to whether this better fit HW or here, but since there really is no question associated with it, figured this made a bit more sense. I have a couple basic questions about the stress tensor: T_{ij} = \epsilon_0 \left( E_i E_j - \frac{1}{2} \delta_{ij} E^2 \right) +...