Recent content by ramox3

but what is the relevant line voltage for the inverter? isn't it the same?

here's the figure :D http://imageshack.us/photo/my-images/69/figure3t.png

How do I solve for theta: 31 = (47.872 L θ +90˚)

Homework Statement Hello everyone I am a newbie to electrical engineering, I have this problem I've been strugling with, no textbook seems to cover this problem..A three-phase, 440-V, generator delivers 5400W of active power through two recti-fies, A and B, into a three-phase, 230-V, line as...

When I have the Vphase (254 V) S phase (6.2KVA) and I (24A) ? Help !

Hello everyone I am a newbie to electrical engineering, I have this problem I've been strugling with, no textbook seems to cover this problem..A three-phase, 440-V, generator delivers 5400W of active power through two recti-fies, A and B, into a three-phase, 230-V, line as shown in Figure 3...

so what can I say about the value of the current in the armature?

How do calculate the current when I have the active power and reactive power and voltage? A single-phase, full-wave controlled bridge rectifier supplies a permanent magnet dc motor. The rectifier is connected to a 240V ac voltage source and absorbs 1200W of active power and 1000VAR of...

Homework Statement A single-phase, full-wave controlled bridge rectifier supplies a permanent magnet dc motor. The rectifier is connected to a 240V ac voltage source and absorbs 1200W of active power and 1000VAR of reactive power from the source. If power loss in the rectifier is negligible...

I wasn't given any other figures, I have managed to solve it this way, please correct me if I am wrong: Q is the power dissipated by the device = 25W TJ is the junction temperature in the device = 85˚C TC is the temperature at its case=? TH is the temperature where the heat sink is...

Hello I've been stuck with this for ever, can't find the relevant formulas Homework Statement Given that the surface area of the first heat sink, S1= 500 cm2 = 0.05 m2 2nd heat sink = ? The thermal resistance between p-n junction and case, RTjb = 0.6˚C/W The thermal resistance...