transformers

Recent contents Top users
  1. polo1

    12v MR16 to LED

    Hi guys, this feels like a bit of a "simple simon" question and despite having fitted hundreds of down lights, don't think I've done this before... Customer changed existing 12v MR16 lamps for MR 4.5w leds. Didn't change the transformers though and is suffering from the leds flickering when on...
  2. S

    2 transformers / 1 switch / see diagram

    Hi, Just wondering if anyone could shed a bit of light on this subject.. As a domestic Spark,I don't have extensive knowledge of low voltage , and how it behaves during series and parallel configurations.. ( been a while since college..)... I've come across a situation where i've been asked...
    • sparkyjohn1
    • Thread
    • diagram switch transformers
    • Replies: 8
    • Forum: UK Electrical Forum
  3. H

    MR16 LED's

    Hi, I was in the wholesalers last week and was getting MR16's to use as a demo for a client. I was going to get the driver to go with them, however the sales rep said that you can directly replace the current halogens with the LED's. I did as he said and they seem to work fine. I thought that...
    • Hawk
    • Thread
    • driver led led's mr16 replace tranny transformers
    • Replies: 6
    • Forum: UK Electrical Forum
  4. J

    Cranes and transformers

    Hi all, I was recently lucky enough to land a job that involves working on transformers and cranes as an electricians mate. As I have not done this kind of work before, I was wondering if anyone had any experience of this kind of work and could offer any information, or links, about what it...
  5. A

    Question regarding Dimmable Lights and transformers

    I have a Robus 70W dimmable transformer for MR16 12V bulbs. The transformer has 3 sockets, for three bulbs. Can I connect three Non-Dimmable 4W led bulbs to the transformer? Thanks in advance :).
    • alfred123456
    • Thread
    • dimmable lighting lights question regarding transformers
    • Replies: 2
    • Forum: UK Electrical Forum
  6. B

    Buzzer dimmers.?

    Hi, I've read a few threads about buzzing dimmers on here but still have a query and would like some advice please.; Customer has x4 low voltage downlights with electronic transformers for halogen lamps fitted to each downlight. These transformers are 60VA each (Saxby model ET60T-R 20-60VA...
    • biggal5
    • Thread
    • buzzer buzzing dimmer dimmers lamps lights rating transformers
    • Replies: 4
    • Forum: UK Electrical Forum
  7. J

    Type D RCBOs

    Dear all, I have to protect a 13 amp ring main which is currently protected by a type b rcbo.The circuit is going to be used by step down transformers from the US.Notorious for tripping on start up.I thought a change to a type D rcbo would cure this,however neither MEM or Crabtree make a type D...
    • johnnycash126
    • Thread
    • circuit question rcbo rcbos transformers type
    • Replies: 70
    • Forum: UK Electrical Forum
  8. S

    Polarity of LED 12V MR16 downlighters

    Hi all Was asked to fit two transformers for shop window display. there was 8 12V down lighters in total split into two circuits and both switched through a timer, The owner wants to replace the 8,12V dichroic MR16 bulbs with 12V MR16 LED 1.8w bulbs. The reason he wants to replace the dichroic...
  9. R

    No access to low voltage downlights transformers on EICR

    Evening Guys, got a house to do an EICR on and there is no access to the 3 plating/transformers on 12V downlights in 4 different rooms. Everything looks nice and pretty and shiny but its all been boxed in. the cut out diameters are to small to pull the transformers down so am unable to take any...
    • Ross1
    • Thread
    • access downlights eicr lighting lights low voltage transformers voltage volts
    • Replies: 8
    • Forum: UK Electrical Forum
  10. G

    led lights on standard 12v transformers

    any opinions ???
    • glasgospark
    • Thread
    • 12v led led lights lighting lights standard transformers
    • Replies: 12
    • Forum: UK Electrical Forum
  11. N

    Fault current on a 11'000 transformer

    Hi guys, haven't posted in a while. Working at a hospital now, we have 2 11KV transformers on site. We only run 1 at the time , the other is just used as a backup (close a bus coupler to bring it in). Being a nosy git, I asked about running both transformers at the same time. Obviously this...
  12. D

    Lamps an Transformer DEAL 52x transformers 56x lamps MR16

    All branded new in boxes will only sell as a job lot £260 Thanks Dave
    • daveb1
    • Thread
    • deal lamp lamps lighting lights mr16 transformer transformers
    • Replies: 1
    • Forum: For Sale and Wanted Forum
  13. S

    Pylon Transformers and 3phase Inverter/Converters

    I am considering buying an ex-agricultural building witha yard, for my business. The downside of this place is there is only single phase electricity present in the building, although there is a wooden 3 cable pylon in the yard (with a single phase transformer mounted). Could anyone give me a...
  14. B

    ELV transformers

    Does anyone know how I can determine how much wattage a 105va transformer can hold and how to calc it? Not done this type of thing since college and use to using 1 transformer for 1 light
  15. A

    ELV lighting fault

    Hi I am currently training to be an electrician but am only part qualified at the min. A friend of mine has asked me to fix some ELV downlights in his kitchen. Apparently when he switches them on sometimes it can take up to 10 mins for the lights to actually come on other times it can be a few...
    • amplifiedthunda
    • Thread
    • company elv fault insurance lamps lighting transformers
    • Replies: 10
    • Forum: UK Electrical Forum
  16. S

    Doorbell problem

    Hi, Any idea's, 1 doorbell, 4 chimes, 2 transformers, 1 of the chimes works from 1 transformer (now not working) & the other 3 works off another transformer. So one of the chimes have stopped working. I checked the voltage on the secondary side of transformer & this was o.k & voltage at the...
    • soulman
    • Thread
    • bell doorbell parallel problem transformer transformers voltage
    • Replies: 2
    • Forum: UK Electrical Forum
  17. O

    12V d/light & their transformers

    today had a fault on some d/l's. Kept tripping checked LN-E @250V and all clear. Dropped a couple of fittings and thankfully on 2nd found the cable after the tranny had been resting on fitting and disintegrated. As said, found this on 2nd light so was happy but what if I had 20+ etc....is...
    • One_of_them
    • Thread
    • 12v their transformers
    • Replies: 11
    • Forum: UK Electrical Forum
  18. S

    Importance of Power Transformers?

    Electricity or power has become the major part of our daily life and without electricity we cannot imagine a life today. Most of our household appliances work on electric current. We face various power problems due to voltage fluctuations. Sometimes our home appliances malfunction due to voltage...
  19. R

    Wire wound 12V transformers

    Morning all, I've just received an email from a technical department regarding a tradtional "wire wound" 12V transformer. He tried to explain that a 300W wire wound transformer needs to have 300W worth of lamps connected to it, as the transformer cannot regulate the power it outputs...
  20. A

    Step up transformers

    Hi all Having a bit of a nightmare, client has specified a particular Inverter for a 250KWp installation but upon clarification, as its transformer-less and Chinese, I will now be required to install a step up transformer from 270V to 400V. Does anybody have any idea where i can source one...

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

Tags

advice aus cable circuit course earth electric electrical electrician hello led light lighting lights looking new please question rcd socket supply switch testing training wiring
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
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