| variable speed drive |
Asked by kdaboh, Yesterday 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
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?
| Wireless phone charging technology and Voltage Detection Technology |
Asked by ceopaulkim, Mar 8, 2017 03:39 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...
| Current flow in 3 phase circuit |
Asked by mfburnette, Mar 6, 2017 01:01 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...
| Headset with aux input circuit board |
Asked by Wanntrepreneur, Feb 26, 2017 01:28 PM in Electrical Engineering
I bought an aviation headset from China that works great until you plug in an aux source such as music from an iPhone / iPod / iPad.
| Cctv two way conversation |
Asked by Jawahar1972, Mar 4, 2017 05:53 PM in Electrical Engineering
Did any one tried two way communication in CCTV. When I tried myself, I am able to hear the mic clearly. But audio out from DVR or NVR is not clear....
| Rotary switch question |
Asked by frmig, Jan 14, 2017 10:30 AM in Electrical Engineering
This shouldn’t be that hard but I can’t figure it out.
I have an old European combination woodworking machine with three separate and identical...
| Bulding current limiter? |
Asked by notthebrightest, Feb 21, 2017 02:26 AM in Electrical Engineering
I'll describe the issue I'm having, since maybe there is a commercial product I can buy that won't be mistaken as a bomb as I travel through air port...
| Measurement Sample Data |
Asked by raazi91, Feb 23, 2017 05:09 AM in Electrical Engineering
Hi, I am looking for some sample measurement data of devices like Volt, Current, Power and Energy meters. I want to obtain statistical information...
| Please can anyone help me out with this project topic |
Asked by aguero25, Feb 22, 2017 02:09 AM in Other Engineering
What are the effect of guinea corn husk ash on the mechanical and water absorption properties of epoxy matrix composite
| Schedule 40 |
Asked by batal009, Oct 15, 2008 03:30 AM in Mechanical Engineering
What is schedule 40?
| Do I need an IS enclosure if the electrical components are already IS |
Asked by gfriske, Jan 17, 2017 11:38 AM in Electrical Engineering
I have electrical items that are UL rated for class 1, div 2 a-d. I need them in an area that is class 1, div 2 group c. Can I just use any Nema 4x...
| Equipment grounding in Antarctica |
Asked by micale24, Jan 10, 2017 04:07 AM in Electrical Engineering
I'm airfield systems tech at McMurdo Station, Antarctica. My issues is the grounding of the electronics that are located on a 200-300 meter thick...
| Can we construct a light bulb that matches the sun's blackbody spectrum? |
Asked by TShackel, Jan 5, 2017 05:32 PM in Electrical Engineering
Hi, I have a question for electrical engineering experts about light bulbs and producing one most like the solar blackbody spectrum. I understand...
| Transmission line impedance matching and frequency changes |
Asked by portablevoid, Dec 27, 2016 05:24 AM in Electrical Engineering
If we have a certain transmission line at f0 , it has a load at its end ZL=R+jX then we insert a quarter wave transformer at the first position of...
| DImming |
Asked by ddddd1234, Dec 16, 2016 06:53 AM in Electrical Engineering
I have a problem with dimming lights
1) house is 2 story and 1 family with basement
2) i Have a 100 amp panel[/SIZE]
3) I showed this problem to...
| 3 phase 3 wire 240v old system all 3 phases to ground |
Asked by Joewat, Dec 8, 2016 09:26 AM in Electrical Engineering
I had to put a 5 jaw meter securely back on pole it's a 3phase 3 wire 240v no ground from transformer. So Pg&e shut of power I secured box and tested...
| Is thwn rated at 600V both ac and dc? |
Asked by Louisa 9999, Nov 27, 2016 12:43 PM in Electrical Engineering
Installing a solar system panels to power optimezers combined string out put is less than 500v dc Is thwn rated for dc?
| Can a power tool designed for 220V 60hz be used on a 230V 50hz power source safely? |
Asked by s3rialthriller, Nov 28, 2016 01:54 AM in Electrical Engineering
I would like to purchase a specific power tool (Groove cutter) not available in my country but would like to import it from a country were the power...