CrazyEngineers Forum - Electrical & Electronics Engineering |
- Why do you want to study Electronics and Electrical Engineering
- Latchable fault feedback
- Generator Temperature Rise Test
| Why do you want to study Electronics and Electrical Engineering Posted: 11 Jan 2011 09:33 PM PST I am going to send my application for a university to study Technology,I chose Electrical and Electronics engineering but they asked me the reasons for me choosing that but i actually don't have good reasons.Does anyone can tell me why someone should study that subject ? his own reasons maybe |
| Posted: 11 Jan 2011 08:39 PM PST What is a latchable fault feedback? Could someone please explain. |
| Generator Temperature Rise Test Posted: 11 Jan 2011 01:55 PM PST Generator Temperature Rise Test From a few days, we have made a test on the Generator's windings (Stator and Rotor), this test accomplish the temperature rise of the windings at full load is within the Normal range. First, we increased the load to full load (350 MW), then increased the reactive power and the terminal voltage at about (19.7 KV). 1) Procedure for stator winding. -Apply the following formulae, after you collect the data every 30 minutes. Ts = ( Tst – Ts1 ) * ( In / Ib )2 + Ts1 Tst = Actual stator winding temp. – Avg. cold gas temp Ts1= Factory test value = 4.4 In = Factory test value = 13.37 Ib = Max. Current value 2) Procedure for rotor winding. -Apply the following formulae, after you collect the data every 30 minutes. Tf = Tft * ( Ifn / Ift )2 Tft = Actual rotor winding temp. – Avg. cold gas temp Ifn = Factory test value = 2945 Ift = Actual Current value Ts and Tf , should be at the normal levels , at full load |
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