Search the forum,

power

A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters. Some power supplies are separate standalone pieces of equipment, while others are built into the load appliances that they power. Examples of the latter include power supplies found in desktop computers and consumer electronics devices. Other functions that power supplies may perform include limiting the current drawn by the load to safe levels, shutting off the current in the event of an electrical fault, power conditioning to prevent electronic noise or voltage surges on the input from reaching the load, power-factor correction, and storing energy so it can continue to power the load in the event of a temporary interruption in the source power (uninterruptible power supply).
All power supplies have a power input connection, which receives energy in the form of electric current from a source, and one or more power output or rail connections that deliver current to the load. The source power may come from the electric power grid, such as an electrical outlet, energy storage devices such as batteries or fuel cells, generators or alternators, solar power converters, or another power supply. The input and output are usually hardwired circuit connections, though some power supplies employ wireless energy transfer to power their loads without wired connections. Some power supplies have other types of inputs and outputs as well, for functions such as external monitoring and control.

View More On Wikipedia.org
Recent contents Top users
  1. R

    Power flushing

    Only been at it for half an hour. Bored already. Every job on this site has to be power flushed before the boiler is changed. 10 year old flats with combi systems. The water is already like volvic!
  2. P

    Triton Aqua Sensation Power Shower Stopped Working

    My 15 year old Triton Aqua Sensation power shower made a screeching noise today and stopped. No water comes out at all. Does anyone have any ideas of what may be wrong, and what to check? Many thanks?
  3. Meady

    Electric power shower

    I have a customer that wants a mixer shower replacing with a power shower, the only problem is the pipework is teed off of the basin above floor and run to the shower over the bath. She says that she used to have a power shower there before but was just wondering whether you guys think this...
  4. T

    Power flushing boilers

    I understand that it's not advisable to power flush back boilers. What other boilers would people recommend not flushing. I am kind of after a bit of a list what not to flush if I bypass every boiler then I could just crack on with fx2 and neutraliser??
  5. T

    Power flush association uk

    Has anyone joined this mob? Are they any good? The logo would be good to use on the van and cards I am sure. I am also looking at there training day
  6. hammers4spanner

    Power tools

    Just gone through my power tool kit today got quite a bit 1x 12v dewalt drill 1x 18v dewalt drill ( on last legs) 1 x 240v cheap drill 1x 110v makita ripsaw 1x 110v makita drill 1x 240v makita drill 1x 24v makita drill 1x 18v makita drill 1x rems amigo 1x 18 v milwaukee 1x milwakee impact...
  7. T

    Power shower problems triton

    Hi all, I have a triton power shower. When switched on with the temp set to hot, the pump runs dry, if I reduce the temp, cold water will flow. Increase the temp and it will run dry for a minute or so, eventually hot water will flow. If the shower is used regularly it's fine, but if not used for...
    • Tel1981
    • Thread
    • issue power power shower problem problems should shower triton valve
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  8. T

    Power flushing can of worms

    Gunna open a bit of a can of worms hear, do u or do u not flush the boilers? Combi, conventional, back? Reasons as to y u don't if u don't please. I am relatively new to flushing and I am getting a lot of conflicting answers. Also I have been cracking on with fx2 and a neutraliser with good...
  9. A

    Job to look at in the morning. Triton power shower, poor pressure. what to check?

    Hi guys, I have been asked to go and have a look at a Triton power shower in the morning. I don't know the model, if it's tank fed etc. What things should I be looking for or have in mind to check before I get there? Pump needed? Flange needed? Blockage/restriction somewhere. Anything...
  10. M

    Power tools?

    Where do most of you buy your power tool gear?
  11. G

    power flushing machine

    Hi, im looking at the cost of buying my own power flushing unit, there so pricey. At a £1000 I don't want to be disappointed. What should I be looking for. Thanks in advance.
  12. S

    Worcester Greenstar 25si compact issue

    Hi me and my partner have just moved into a new house and the boiler was working fine last night on our first night however I have woken up this morning to the unit being completely off not even showing the stand by display or the blue light, I have adjusted the thermostat and turned the unit...
    • Sean Morris
    • Thread
    • 25si boiler check compact greenstar issue nothing power sorry worcester
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  13. D

    Power flushing.

    Right iv got my tight sod cap on. I bought the fernox powerflushing machine last summer, used it a few times been succesful. Nervous on first use but after that you get used to it. Iv been looking at the filters, £500+, how successful do you think a thin gauze with a strong magnet would be...
  14. M

    potterton programmer ep1 not working since lighting circuit blew

    hi all had a short on my lighting circuit at home and now my programmer is not working or showing any display any ideas.Don t understand why as it should not coming off the lighting circuit.
    • mooey
    • Thread
    • check circuit coming lighting not working potterton power programmer since working
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  15. Leo21

    Power flushing

    Is soooooooo boring, someone talk to me!
  16. F

    Power Max boiler

    Hi, someone has installed nest and wanted the heating controls to be separate from the hot water (water heated up separately) I've had a little read and it seems to be a system boiler with a cylinder built in which would not make it possible. just want clarification. thanks
  17. L

    Salus pump problem

    Hey guys, Fitted a new Salus pump (mp100a i think it was) to a Pulsa coil 3 its worked since Saturday and got a call today the tenant had no hot water. When i got there i noticed the digital display on the side had no power so i changed the fuse in the spur and was still having the same...
  18. C

    power shower not turning on help

    I have a pumped power shower running of a indirect cylinder the shower head is just below the header tank but the pump wont turn on unless the head is on the floor or I shake it about can I put a accuimilator tank on or any suggestions to what will sort it out all help will be apprecitated
Creating content since 2001. Untold Media.

Newest Plumbing Threads

Tiling Tools for Beginners
Tiling Forums UK
Electrical Blog
Tilers' Talk
TilersForums.co.uk | UK Tiling Forum - Est 2006
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock