Latest threads in ⏚ Electrical Engineeringshow only best voted threads
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Synchronisation Question
Existing setup> 1. DNO supplies at 11 kV through a circuit breaker and onto the 11 kV busbar. 2. 11 kV generating set serves as standby backup and runs at TRIAD times. Synchronises with DNO at 11 kV...
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17 years ago
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Water vs. Electronics: Why does water always seem to win
After ruining many watches, cameras, and cd players over the years, I begin to wonder what is it that makes water so powerful against electronics? You would think that after drying the components they...
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17 years ago
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A movie question about electrical engineering
Has anyone seen Fast and Furious 2? They have a thing where it shoots a claw into a car and using high voltage it "shorts" the car's electrical system. Can this be possible? I know they've tested...
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17 years ago
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electrical calculators online and free
I now have completed 24 online Calculators. 23 are JavaScript and run in the webpage, one is an Excel Spreadsheet. The Table 310.16 calculators are second to none that I have found on the Internet...
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17 years ago
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sizing a dc motor
Hi, I am trying to size a DC motor and need some assistance as to how to do this. The mechanism I am designing will be a 'drop test rig' for a product of ours (stress analysis & destructive test)....
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17 years ago
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DC power to a computer
In another thread the topic shifted to DC input power to a computer. And this is not a new topic, either. I thought I'd just launch this directly as a new thread to see what others think about this....
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17 years ago
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question from electrical releative simpleton re: ground
Please forgive me if this is too advanced of a group to post such a general / layman question. I thought I understood the safety issue behind grounding electrical devices--that in a non-grounded...
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17 years ago
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project resources
i am a 4th year B.E. student.i am looking for topics for my final year project in the area of image processing.i am thinking of doing a fingerprint detection system without using a computer...
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17 years ago
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Outcome (was 2 "ground rod" questions (Thumper aka cable fault locator))
I tested this machine more today. If I power it up and then depress the little breaker in the back (which seems popped), my GFCI blows. Powered from generator, depressing the breaker button seems to...
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17 years ago
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Damage possible from powered mic in socket for un-powered mic? [OT]
I have a portable flash-memory recorder which has a mic input. The input socket has "Plug-In-Power" this provides power to run a suitably-designed unpowered electret mic which is plugged into the...
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17 years ago
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Can You Beat the Experts from Georgia Tech?
The guys can answer any question! Inside the Black Box at 9:00AM has the answer at 866-356-0789 or 404-943-1620 ask them anything with regard to science and they should be able to answer it. Two...
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17 years ago
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Using Flow Control to Switch Bathroom Fan
I'm just having a choice about extractor fan for a bathroom. It seems that you can have a simple switched unit which then requires manual operation and a second pull-cord, Timed from the light...
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17 years ago
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how to measure current from the capasitor
How can i measure current ( with multimetar ) of 35V capasitor with 100uF capasity ? Should i connect resitor and how ?
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17 years ago
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2 "ground rod" questions (Thumper aka cable fault locator)
I have a particular device that I would like to test, which is called a "thumper". It was made by associated research (model 8613) and is comprised of two under-desk-refrigerator-sized pieces, about...
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17 years ago
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Most cost effective parallel conductor/raceway combinations?
I am looking for information on which parallel combinations of 1/0 AWG to 500 kcmil conductors are the least expensive for 600 amperes to 3000 amperes. I could do this myself, but if the information...
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17 years ago
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