CrazyEngineers Forum - Electrical & Electronics Engineering |
| Posted: 12 Mar 2011 12:54 AM PST in pn junction , what s depeletion capactiance and junction capactiance |
| to build a Hydro alternator protection panel Posted: 12 Mar 2011 12:34 AM PST To all, I have to build a protection panel for a 25 - 50KW hydro generator employing the following relays : 1. -ve sequence relay, 2. Earth fault relay 3. Over Vol. relay 4. Under vol. relay 5. Over Current relay A single-Line diagram has been prepared. Now i have to develop a ckt where i ll deliberately create a fault to know how the alternator ll behave i.e., 2 note down sum readings and develop associated characteristic curves. I am in a fix here. I ve 1 idea i.e., : Let us say the alternator develops a 4A current (rated) and the over current relay shud trip at 4.5A current , for this i ll develop an extrnl current source and ll add to the current cumin 4m the alternator and ll pass thru relay. But i dont kno hw gud dis idea really is .?? :) |
| Posted: 11 Mar 2011 07:01 AM PST HI my project is air mouse using accelerometer im struck as to how to send data to comp regarding mouse movement and clicking im using arduino plz help |
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