transformer

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  1. 51m0nb

    Can I use a 110v transformer in reverse?

    I am an experienced DIYer (build my own house etc) and I’ve offered to help a friend in France. However, all my power tools are 230v. Could I use a safety transformer in reverse to convert the local 110v to 240v?
  2. T

    Fully isolating output ground on Sola CSV Transformer

    Hello. I'm new here and greatly appreciate any assistance that more qualified persons can provide. I am a DIY person with some, but limited, experience handling transformers and other high voltage items in electronics. I have a deep respect for their potential to harm and I like to be very...
  3. Brqchi

    Can voltage transformer and frequency inverter replace frequency converter?

    Hi. I live in Kurdistan(iraq). I bought these four devices from the United States: @BLENDER: 120V, 50/60Hz, 12A @food dehydrator: 115V,50/60Hz,600W @food dehydrator: 110V, 60Hz, 1500W @Vacuum sealer: 120V, 60Hz, 1.06A As you know Iraq's power is 230V-50Hz, So I have to change the voltage...
  4. B

    Fridge transformer whines

    I have a wider range of hearing than most people. I can hear the transformer of my fridge when the compressor isn't running. It utterly torments me so I wear noise cancelling headphones all day, every day. Other refrigerators do this too and shops are too noisy and unhelpful to really test to...
  5. deliveryguyuk

    UK Required MCB for Doorbell Transformer

    Hi guys, I’ve just looked in my consumer unit and I’ve got space for an extra MCB and a rail transformer for my ring doorbell. I’m planning on adding a matching mcb however I don’t know if I need a 3A, 6A or 10A version. The transformer is British General Fortress 8-24V AC 8VA Bell...
  6. D

    New Transformer Humming Noise on Smart Doorbell 24 volt AC - How to fix this UK

    Hello All, Incase this reaches other non UK residents to confirm this doorbell has been fitted in England it regard to electricity distribution feeding the circuit This is the first I've posted and I'm certain many on here will have a good explanation and remedy for this problem. I've made...
  7. P

    Does Ring Transformer Need Fuse?

    Hi, I have recently installed a Ring Pro Doorbell. It has come with a transformer which is going to be connected to the lighting circuit as the CU is too far away. My question is, does it need a Fused Switch on the supply or can it be powered straight from the lighting circuit? Thanks
  8. O

    How to connect this toroidal transformer for a light fixture?

    Hi All, Hopefully someone knows the answer to this one. I have a toroidal transformer, which goes with a specific light fixture. However, when I purchased it (second hand) I did not get the install instructions. Attached are photos of the transformer, and the label, as well as the leads on the...
  9. P

    Ring Doorbell Transformer Location

    Is it acceptable to mount a ring doorbell transformer in a double back box with a flush cover / fused switch? I can’t get the wires back to the CU and don’t want a large box sticking out the wall. Thanks
  10. J

    Transformer replacement

    Hi, Hoping someone can help me. I have a transformer which has failed & needs replacing. Current one powers 3 halogen down lights. Ideally we would like to begin swapping to led lights. What could this be replaced with? Pictured is current one.
  11. F

    Neutral from secondary side of a transformer

    I had a question regarding the neutral wire on the secondary side of a transformer. When connecting H2 and H3 in series, H1 and H4 can be fed 480V to step it down to 120V. On the secondary side, I understand having to connect X4 and X2 together, and X3 and X1 together, putting them in parallel...
  12. B

    Current transformer metering producing implausible readings

    Edited - please read right to the end! Grateful for any advice regarding CT metering which seems to be generating inaccurate/implausible readings. Our charity has a commercial building with 3-phase connection into a busbar chamber at one end - let’s call us ABC. The rest of the chamber...
  13. JWallstrop

    Double tap transformer?

    Across the pond in the US we allow utility-owned transformers to be tapped up to six times but an identically set up customer-owned transformer to only be tapped once unless following the feeder tap rules, see: Feeder and Secondary Tap Rules (mikeholt.com) Tapping of the secondary on a...
  14. M

    110v transformer to air compressor

    I recently brought a 110v aircompressor but when I brought it I was told I could run it through a transformer box as i work on site which worked fine for a month but now the transformer box keeps tripping and has even blown the fuse in the plug. Am I right to run it through a transformer box...
  15. T

    Power transformer Low voltage supply

    I recently installed a 200kva, 33/0.400 KV transformer for a small commercial hostel, so after powering the transformer, we checked all the output of the 3 phase at the secondary side and it was ok but whenever a single air conditioner is powered , then the voltage becomes low. Please guide me...
  16. M

    Link 2 LED Xmas strings to one larger Transformer or LED Driver ??

    I have 4 sets mains / 36v LED strings and I would like to merge 2 sets to one power supply - plaese advise is this possible and what size transformer / LED driver would be needed? Each string has 1152 bulbs at 0.043 per bulb Label on wire of Lights states 36v~2.33A, 84VA then...
    • Mandak
    • Thread
    • christmas lights driver larger led strings transformer xmas
    • Replies: 3
    • Forum: UK Electrical Forum
  17. C

    Replacing transformer on lamp.

    Looking to replace a broken transformer on lamp. Having problem finding the exact part. Transformer model is CY35-2400150A 12V 60Hz made by NingboChen Yow. I can find these transformers, but the one I need has a female outlet that the cord plugs into. The lamp has a male plug.
  18. C

    Im putting in a new transformer for a halogen light and extractor

    I am putting in a new transformer for an extractor fan/light and I thought I had finished but the fan works ok but the light doesnt. I have put in new bulb. I think i must have wired incorrectly
  19. M

    UK USA transformer causing lights to flicker???

    Hi, I have American tenants who use transformers. When they do, the lounge spotlights and kitchen light flickers. These are on dimmers. Can something be done about it?? TIA!!
  20. D

    Ring Wired Doorbell Transformer Chime advice

    Hi, I have purchased a Ring Video Doorbell in the UK, and am looking to install it. I live in a New build property and the transformer to the Chime is within the Chime unit. Looking at it the wires come through slightly differently to the installation video, and I'm trying to confirm how I...

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