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An apprentice ran my cabling and fitted socket covers works signed off by a third party certification - any issues with this?
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With fossil fuel energy on its way out, I have been trying to come up with a way to save the energy we now use. Here is what I came up with. May...
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1K
  • Question
hobbyist question: If I'm running a pelton wheel generating x watts, is it enough power to pump out the same amount of water used to create current?
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306
Please be as honest as you can all, I'm looking for real honest views before I waste thousands of pounds and my few remaining years of working...
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22
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871
if a 420 watt 12 vdc led light draws roughly 35 amps, what would the draw be on a generator putting out 120vac with a 120vac to12vdc converter
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203
Afternoon, is there any requirement for electrical cabinets to be all metal? Or is any flame retardant ok? It’s for a basic PLC cabinet with...
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1
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203
Hi, I have taken over a design engineering job for industry. The design is using a 400V/110V transformer. Usually, the 110V is single phase...
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16
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514
Hi, I am a design engineer (2 years out of apprenticeship). I am in the process of amending some designs that are not quite to our company...
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6
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319
  • Locked
So, a flat 6 floors and above needs an AFDD on each socket circuit. At up to £150 each it is going to be an expensive undertaking if there are...
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21
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665
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Hi senior members of the forum, I need advice on couple of questions about Rio and BHP specs for electrical installation purposes. What is the...
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0
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162
  • Question
What would be my gain margin if my phase angle doesn't cross -180? Thanks in advance
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1
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214
  • Question
Just an idle thought - has anyone any experience of using the DC output of solar panels to directly feed an immersion heater, to avoid the expense...
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6
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425
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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7
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1K
Hi hs anyone done distance learning on this course if so could you tell me how it was deliverd i mean was it video where they explain or was it...
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2
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254
What is the difference from a simple lghtning rod vs the modern ones they sell for 1,000pounds ? Do these really work so much better ?
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4
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573
Hello, I have a question about diversity and load utilisation factor with Trimble software. Say we have a 3ph 150kW load with 0.8 pf which gives...
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0
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417
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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482
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110K
Hi all, Hoping for a little advice. I work in the Asbestos industry and we manufacture mobile decontamination units we follow the HSE 247 that...
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1
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554
Hi All I hope this topic makes sense for this forum and somebody can help me to understand. This is what I understand (please allow numerical...
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770
  • Question
Hi, morning EF. I was looking at a single phase motor yesterday attached to hydraulic pump for cardboard bailing machine that seems to be...
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15
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1K
Hello. I know its probably a long shot but i have this part [from a roberts radio] and the middle component got burned. anyone knows if said board...
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6
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543
What happens if we switch only certain vectors of Space Vector PWM(SVPWM). For e.g. V1, V3 and V5?
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0
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184
  • Question
Has anyone in here done HNC Engineering design module?
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1
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977
  • Question
I'm trying to find a simple way to answer some stress related questions in regards to MV termination to apprentices not engineers...this is what I...
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0
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274
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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9
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882
I wasn't quite sure where to post this random question, but I'm fairly sure that some of the geniuses on this forum will have some ideas. I'm...
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18
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1K
Hello everyone I am programming L&T make WL4000 energy meter. When I change the CT Primary to 400 the LED K is on meaning the meter reads in kWh...
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0
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247
Hello, I have a question regarding modelling on Trimble. If we have an MCCB that has LSI protection but has a separate earth fault relay can this...
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0
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399
  • Question
at first glance i thought it was volcanized rubber but it is tough like PVC and the sheath is much bigger than the cores they are loose inside
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3
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406
Need to build a replacement panel controlling controlling site entrance barrier, goes up in morning down at night. Not done many panels but have...
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9
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690
What is the benefit of connecting a sync gen in either star or delta? I’m trying to get my head round both methods. Do most stand by generators...
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1
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430
To avoid distracting another thread... @Julie helpfully said that an RCD can be used with an IT system to achieve disconnection after the second...
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17
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2K
Hello, With regards to Trimble software for bs7671 cable sizing. I understand that a three phase circuit (No neutral) is one circuit and this can...
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7
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975
  • Question
Greetings everyone I work at a company that sells chargers for electric vehicles and I’m working on the electrical projects. The chargers I work...
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3
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594
Hello, Does anyone know if Trimble can be used for cable calculations for equipment with an IT earthing system? If not could you please point me...
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14
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903
My wife is a painter and I am looking for contemporary picture light that looks great when lit with a warm bulb for soft lighting. Found some...
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1
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584
  • 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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35
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3K
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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845
  • 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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1K
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