Dear scge,
The Y-factor is defined as the ratio of System temperatures :- P(hot) to P(cold). For full details go to the following website: http://scienceworld.wolfram.com/physics/Y-Factor.html
Best Wishes,
David707
morg,
Your quey on e-beam propagation prompts me to ask you to confirm that you mean electron beam. The propagation of electron beam in atmosphere is a very difficult prospect as the beam interacts with the gases in the atmosphere and quickly becomes attenuated. You should be aware ofm the need...
Shortstub - Many thanks indeed for your contribution. It confirms my thoughts described in my last response that the whole thing hinges on maintaining a convention on current direction. I'm now very happy to acceopt the (measured) fact that the common current Ib is sqrt3(3) (V/R) lagging 30 deg...
Many thanks again, peterb. I agree with your method but the sticking point hinges around the direction of the current vectors for I1-2 and I3-2. This is best exemplified by a slightly different visual vector presentation. as follows: Draw the 3 Line Voltage vectors, V1, V2 and V3 at an angle of...
You don't say whether it is a digital or analogue scope. If it is analogue , the fact that you have an electron beam is evidenced by the spot(s) on the screen. It certainly means that there is no timebase operating although tubevoltages may be OK. In view of what you have done in terms of...
Many thanks chaps. I have been this route but when I actually draw the vector diagram the root 3 x I1 or I3 line current solution does not map out. I can contrive it but the vector solution does not make sense. I agree (almost) withjghrist (So actually line 2 current I2 is -(I1+I2)) where it...
Many thanks to Pereb but this is the solution I came to but it doesn't agree with actual figures taken from a practical situation. Actual situation as follows:-
Line volts = 208v
Resistive load = 20 ohms
Loads connected between Line 1,2 and 2,3
Mesh/Delta source configuration
Readings obtained...
Can anyone prescribe the method of calculating the Line currents in a three phase Mesh connected system with equal resistive loads connected between Line 1,2 and line 2,3 with Line 2 as the common connection. Wish to be able to calculate all line currents. I suspect Line 1 and Line 3 currents...
