hey there my names james park i live in chelsea and am studying a HND in electrical engineering , I was really hoping someone could possibly help me with something, basically Explain what are fourier series different components for the non-sinusoidal periodic waveform. and help Evaluating by...
Hi All
I would be very grateful if anyone has experienced and failed Astro Terra 28 (or others) LEDs. I have recently wired parallel and series over the years but have stumbled recently on how 6x 1w leds failed using a 5.95-10w 350mA constant current led driver. I have tested the circuit which...
Hi,
I've got a simple downlighter installation which comprises 2 halogen bulbs mounted inside the wooden surround of a decorative fire place.
There is a simple one/off rocker switch (semi hidden) so that the lights can be turned on or off.
So, I have a transformer which supplies the 12v to the...
Nick Thomas
Thread
12v
circuit
lights
open circuit
series
switch
transformer
Any game bearing the Deus Ex name sets a high bar for itself, and yet, Deus Ex: Mankind Divided clears it handily. The followup to Deus Ex: Human Revolution retains the strong gameplay blueprint of choice-driven stealth and RPG gameplay that defines the series, but its superlative map and...
Any game bearing the Deus Ex name sets a high bar for itself, and yet, Deus Ex: Mankind Divided clears it handily. The followup to Deus Ex: Human Revolution retains the strong gameplay blueprint of choice-driven stealth and RPG gameplay that defines the series, but its superlative map and...
Hi
Have little issue
Some Led lights have been wired incorrectly, instead of series the connection, it's connected in parallel. The supplied transformer/driver is 350ma constant and connected in series the lights are pulling 3v each. There are 9 lights in total and are set and can not be...
Toplad
Thread
led
led lights
lighting
lights
parallel
series
wired
Hi just wondering if anybody has done the above portfolio or can help me out with it. Examples etc, any help will be very much appreciated as seem to be struggling with the wording of it all.
Thanks
Got a regular customer who has just bought a house with some series wired Collingwood LED lights wired in series in the garden. Sparks who has done it hasn't done a bad job to be fair, but clearly didn't think too hard about those behind him!
All 9 lights are on 1 switch and 1 driver (constant...
Hi All
Just seeing if anyone can recommend from experience a grid dimmer (MK or Hager grid compatible) that works well with the following LED downlight:
Aurora M10 range : AU-FRLD811
Aurora M7 range : AU-FRLD711
Cheers Sy
Hi guys advice needed
i am on a job where there are going to be 3 pirs controlling around 12 lights the 3 pirs are just because of the layout of the room,these have to be wired through greggs this is a method I have never used before as have been doing heavy industry for past few years
can...
Recently had to work on Chinese plastics dryer with an overload relay wired in series with contactor latching circuit auxiliary contacts. When the overload trips you can still turn on the motor while the button is pressed. Why is that? It should be tight before the A1 or A2 terminal
I have seen...
Hi all and thank you for letting me join the forum !! I do a bit of Pat testing at my work and have been asked to test some of the leads that attach to the IEC leads with the plug on(I.e. to make them longer). As these haven't got their own plugs do they have to be tested as surely they are only...
paulhandy
Thread
cable
extension
extensions
resistance
series
tested
testing
Question is :
- The insulation resistance of two circuits is of 40M? an 36? respectively. When tested together what is the total insulation resistance:
answer is 19 ohms but how? can some one explain
Hi guys,
I would to say hello to everyone and hope I will be comfortable in this forum!!
I am a mechanical engineer and I am in a certain way "forced" to learn also electrical stuffs.
At the moment I am trying to understand why my RESET button (ZBE 101) on my machine does not work.
I...
LordKelvin
Thread
block
button
close
electrical work
not working
reset
schneider
series
working
Help! got problem on site. I'm after several series 7 type fuses to satisfy BNO meter suppliers. The BG meter people want a series 7 fuse in front of each meter. Where can they be sourced from? Thanks
tried some wholesaler..no joy so far
Hi all
I am carrying out my assignment and a little stuck on this i have to work out the
Total inductance
and total capacitance
now I'm aware of the formulas for series and parallel inductors and capacitors but as you can see from the picture i have a series/parallel combination and I'm...
I am using a Masterplug RCD adaptor in my shed, but when there is an electrical fault on equipment I am using in my shed connected to the Masterplug RCD it trips the main consumer unit RCD in my house. Any help please
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