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  • Question
My first post after extensive Googling. I'm qualified as an elctronics engineer (retired) Posting this question here in hopes that an enquiring...
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2K
I"m a student learning motor controls and created a challenge for myself but am stuck. Here is the challenge: Challenge 1 A) Using a blower...
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3
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496
Few days ago, I bought a solar panel. It's rating was 6v and 450 mA. But when I measured with my multimeter, It shows around 5.25v to 5.85v and...
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4
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311
  • Question
I am building an alternator of my own. I have found that by putting 6 points around my magnets crates an insanely larger amount of electricity...
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10
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663
So, for a bit of completely pointless fun really, does this antique looking item that was acquired entirely for novelty/aesthetics value work...
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5
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936
This is for my speech. Hello my name is Tyson. I am gonna ask you a few questions. What are your thoughts about the job? Is this job challenging...
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0
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379
I have an interesting job/project coming up - a heritage railway has a Mk3 Sleeper Railway Carriage which they intend to use for volunteer...
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30
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1K
Hi First time poster, I have a 250w solar panel and a 90ah 12v battery. What size regulator / controller do I need please? Is it as simple as...
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0
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294
Hi Guys I recently started the HNC in electrical and electronic engineering in online learning through teeside university. Im hoping someone on...
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477
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101K
  • Question
Has anyone in here done HNC Engineering design module?
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0
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240
Got an emergency call out from a very worried old lady the other night - the power at her apartment had gone off and the kitchen light was...
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35
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3K
Hello everyone ? It's totally confusing for me. It is my understanding that the neutral and the ground busbars should be connected at the main...
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6
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793
Hello, I am here looking to ask some electrical engineers some questions and I am wondering if anyone is interested in answering them for my paper?
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3
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304
Hello guys, I have 10W solar panel, a 7000 mah battery and 10A charge controller. there is 7 hours of light a day i have 3W little camera which...
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5
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359
Hi, I am trying to make a short pulse generator from any pulse input. By this I mean I want a final output with a fixed pulse width no matter...
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4
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378
Hi guys looking for some guidance ,i am assisting with the renovation of an old building that contains a commercial kitchen and restaurant the...
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22
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675
Hi, All I have a megger LTW325 and fluke 1664FC to measure loop impedance by using high current mode. But both results are quite different...
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14
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776
Hi, With regards to installation methods on Amtech, I have a question regarding cable ducts. I believe amtech assumes cable ducts buried in soil...
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0
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315
On a recent EICR i have measured 0.589 MegOhms (@250 volts) on the relatively old lighting circuit (red/black PVC wiring) , i have replaced both...
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5
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592
trying to design a circuit where in one moment (T=1) a RF signal is sent through one antenna (A1) and multiple other antennas (A2-A8) receive this...
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2
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270
Dear Members, My name is Abdulhakim am from kenya, i work with an electrical company by name Link-up Power Engineers dealing with industrial...
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4
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343
I just finished the NFPA70E 2021 online training. As far as I understand it the NFPA 70E is OSHA compliant but, I feel like the guidance between...
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0
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166
I did a VLF and IR test on my 33kv cable and IR resulted between 80 to 100Mega Ohms on all the phases and VLF between 0.270 to 0.470mA is the cable ok
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0
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144
Hello, I was put on to this site by someone from reddit so sorry if i'm posting in the wrong place. Unfortunately I (24yo male in Norfolk, UK) was...
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10
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486
Hi, Interested in the breaking capacity of this fuse... 4kA? Anyone know for sure? Thanks
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2
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440
I have woken up after one of the RCDs tripped in my house. I have managed to figure out that it is a plug socket in my kitchen that is tripping...
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2
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466
Took a swa cable to an outside metal shed, earthed at house end but insulated at shed end. Installed earth rods and got reading of 58ohm . all...
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9
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1K
Hello. I have an exam coming up shortly. Would anyone have a sample paper. It's the electrical and electronic diploma, unit 308. It's a written...
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2
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3K
I am using a 3 phase 4 wire surge suppressor on a single phase 240V mains. Is it still okay or will it have some back feed impact on the mains system?
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5
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264
The 232 protocol command of AMX's NP-Rel8 relay has to hit the enter key at the end, which command can I use instead of it. Now this central...
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4
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635
Hi I am reconfiguring a hot wash unit and need to use a flow switch as in attached files. It controls a light powered relay and timer module I...
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2
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439
Was called to a lighting fault yesterday, the lounge light would sometimes switch off when another light was switched on, easy I thought a loose...
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3
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456
Bit of a random question but I’ve got a practice reason for asking. I know with a lot of control circuit timers and relays they state on them what...
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9
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827
Im making a led array out of 8 100 watt led's and I want to put something in between my battery pack and the array that can adjust the voltage...
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4
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543
I was asked to "just fit a bigger breaker" by a plumber who had installed an electric shower for a customer. Bit surprised he hadn't finished the...
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22
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1K
Can someone explain to me please how a substation converts high voltage three wire to low voltage 4 wire?
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20
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1K
Apologies from a newbie if this is in the wrong place. A contractor is going to trace all underground utilities in an area, including electrical...
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1
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443
Not getting continuity on r1, rn and r2. But the sockets are working fine, Amy ideas what the issue could be, I'm checking behind each socket.
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14
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987
Hello, I know that for 4-20ma transmitters twisted pair cable should be used with the screen grounded at one end only. However for digital signals...
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3
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633
We have a drawing that shows a solenoid valve panel( containing approx 40 valves) being powered from an adjacent control panel by a 24vDc PSU...
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3
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623
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