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Turn the power on in the daytime photocell
Asked by CuriousDad01, Oct 16, 2017 10:02 AM in Electrical Engineering
If the common dusk till dawn photocell (resistor?) turns the power ON when dark and OFF in the light what type of photocell would be used to turn the...
we have constructed an sign 4' x 8'. How can we provide the wind load for a permit?
Asked by montgomery1, Sep 25, 2017 03:07 PM in Civil Engineering
The sign is 4' x 8'. The sign is made of 2' x 6' treated lumber, for the frame, and 2 sheets of Royal Mouldings Limited PVC Board (4' x 8' ft....
Getting Unwanted Transitional Values from Push Button Switch
Asked by Brak, Sep 13, 2017 07:10 PM in Electrical Engineering
When I toggle a push button switch on and off, instead of getting a pure on/off continuity levels I sometimes get "transitional" values. I need it to...
Innovative projects for aerospace engineering
Asked by pallavi cj, Sep 1, 2017 11:17 PM in Other Engineering
Since I am a final year aerospace engineering student I am supposed to choose my project , as am searching for innovative projects regarding...
Zero sequence impedance of a 3-phase cage induction motor is due to ?
Asked by rajuwillraju, Aug 31, 2017 05:30 AM in Electrical Engineering
Zero sequence impedance of a 3-phasecage induction motor is due to a. stator circuit 3rd time harmonic b. stator circuit 3rd space harmonic c....
Wireless phone charging technology and Voltage Detection Technology
Asked by ceopaulkim, Mar 8, 2017 04:39 PM in Electrical Engineering
Are there is similarities between voltage detection using a tic tracer and qi charging technology for smartphones? Is it comparable or are they...
Number of nitrogen gas (7.5 kg @ 50 bar) cylinders required to pressure test a vessel
Asked by wgwanya, Aug 10, 2017 10:57 PM in Industrial Engineering
The vessel should be pressure tested to 24 bar and its volume 0.822 cubic metres
How long would it take to charge an iPhone with the kinetic energy of a spinning fid
Asked by samybazizi, Jul 24, 2017 11:14 AM in Electrical Engineering
How long would it take to charge an iPhone with the kinetic energy of a spinning fidget spinner? How long would it take to charge an iPhone with the...
I need a transformer that will stablize voltage drop Iam having over 240 volt 30 amp
Asked by LAGEE, Jun 26, 2017 06:56 PM in Electrical Engineering
I ran 800 feet # 2 wire 240 volt 30 amp. I looking for a transformer that will stabilized the voltage at 240 volt. When a big load like chop saw...
Kapton
Asked by epuzyard, Jul 4, 2017 05:51 AM in Electrical Engineering
Greetings! First of all, thank you sincerely for going over my inquiry. I am no engineer myself, so please bear with me. I have a research...
What is the common cause of axle problem in a car?
Asked by Story Writer, Jun 11, 2017 11:32 AM in Mechanical Engineering
Yesterday, while going to the office, my car started behaving abnormally, i.e. the steering got tightened a bit and then after moving ahead a mile,...
Kipor genarator no output
Asked by TSUMBA, Jun 13, 2017 09:12 PM in Industrial Engineering
I have a kipor ade19 sta3 genarator that runs when started but is not giving me any output. I have checked all fuses and they are all OK. What could...
Mechanical clock
Asked by Brenda Haggai, May 17, 2017 10:48 AM in Mechanical Engineering
Why does my mechanical clock run faster as the spring becomes looser? In the weekly cycle of winding, the clock keeps perfect time for the first 2...
Electrical load calculation
Asked by sebnanp, May 13, 2017 08:09 AM in Electrical Engineering
we had a project done recently, We have used 5 watts bulb. Total of 235 no.s voltage -240v Wires used- 0.75mm duplex stranded cables and...
Ebike battery parallel wiring
Asked by adtalmeda, May 8, 2017 12:19 PM in Electrical Engineering
I'd like to wire 2 ebike battery packs (24v 10ah, two 12v sla in each pack, wired in series) in parallel, but I don't want to open the packs, id just...
Antenna grounding
Asked by Arthur T, May 6, 2017 05:26 PM in Electrical Engineering
In earth grounding a scan/ham radio setup, I'm supposed to connect my antenna ground to my house panel ground. Can I connect my antenna ground to my...
variable speed drive
Asked by kdaboh, Apr 29, 2017 02:47 AM in Electrical Engineering
I had a problem with a variable speed drive this morning after a power outage.the drive failed to come on after the power was restored.i therefore...
Current tranformer ratio
Asked by BBE1891, Apr 14, 2017 02:31 PM in Electrical Engineering
Good day, Current transformer ratio is dependent on loops in primary and secondary winding. If I have a 100/5A transformer with one loop, (no loop...
Fault modling on ATP
Asked by noha eleiwa, Mar 24, 2017 01:15 AM in Electrical Engineering
After apply different types of fault on IEEE 14 bus system the wave form is not correct why?
Current flow in 3 phase circuit
Asked by mfburnette, Mar 6, 2017 02:01 PM in Electrical Engineering
I have a 208 volt three phase AC supply. We want to attach one 18 amp single phase load to A-B and another identical single phase load to B-C. There...


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