transformer

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  1. M

    UK DIN rail transformer left loose inside consumer unit enclosure

    I have a doorbell I want to install. The issue is the 16v transformer is designed to sit on a DIN rail. I have a 10 way 17th edition BG Nexus consumer unit which is fully loaded with RCBO's. I got a guy round for a quote and he said if it won't fit on the DIN rail it would be fine to leave it...
  2. S

    UK Isolating transformer for electric toilet bidet and motor bath

    In one of our bathrooms we have a japanese style toilet with bidet/dryer and a electric motor bath. The electrician installed it with an isolating transformer Carroll & Meynell 3000VA Intermittent Isolation Transformer 230V/230V - Screwfix -...
    • Singloon
    • Thread
    • bath electric isolating motor toilet transformer
    • Replies: 2
    • Forum: UK Electrical Forum
  3. B

    Seeking advice for proper grounding

    Hi, Our house is 150m away from the street. We installed a 600V step-up/down system to bring electricity to it in order to avoid excessive losses and very large cables. The 240V/600V 50KVA transformers are rated NEMA-3R enclosures, located one 10ft above ground and the second one 5ft above...
  4. V

    Velux KUX 220V to 24V transformer in the ceiling?

    Would be compliant with the regulations to have a Velux KUX 220V to 24V transformer installed in the extension's ceiling?
  5. P

    WHY ISNT THERE A NEUTRAL WIRE IN THREE PHASE

    Why the main three phase doesnt have a neutral wire before reaching a stepdown transformer, how does electricity form a loop back to its source
    • Pastory
    • Thread
    • neutral neutral wire phase three three phase transformer wire
    • Replies: 4
    • Forum: UK Electrical Forum
  6. S

    Smart switch for light fixture that uses 12v ac transformer

    I have installed a number of 120v smart light switches and smart bulbs which I have set up on a schedule via an app. I would like to add another smart light switch for a light fixture that has a 120v to 12v transformer inside the light fixture, lighting six 12v (previously halogen) currently LED...
    • supgroup
    • Thread
    • 12v fixture light smart smart switch switch transformer
    • Replies: 1
    • Forum: Lighting Forum
  7. R

    Pad Mount Transformer over Pole Mount for New Home Build?

    Hello --- In the planning stages for a new custom home build -- The house will be several hundred feet from the road and I want to have the power underground --- I am wondering if I should inquire about having a pad mount transformer in close proximity to the Power Pole Source rather than a pole...
  8. J

    How to make transformer

    Hello How to make transformer inverter
  9. Z

    What are the causes of unbalance current during no load test of transformer?

    What are the causes of unbalance current during no load test of transformer?
    • za1820
    • Thread
    • current during load test transformer
    • Replies: 19
    • Forum: UK Electrical Forum
  10. B

    Will any led 12v DC transformer be suitable for 12v DC Extractor fan

    Will any led 12v DC transformer be suitable for 12v DC Extractor fan? Considering 4w rating.
  11. Q

    Transformer and MCCB Questions

    Hello All. New here and will be flooding with terrible questions for my own knowledge. Just trying to learn so some questions like this maybe very simple and I'm just daft 1) On site we have a Aux Transformer, From the LV side of the transformer we have an MCCB Board with a few circuits. Now on...
    • QuestionableSpark
    • Thread
    • mccb questions transformer
    • Replies: 6
    • Forum: UK Electrical Forum
  12. N

    What are these transformer looking things I have been seeing?

    Hi. I have seen these transformer like things on the higher voltage powerlines when I go to regional areas in NSW and I was wondering what they are? I can't remember seeing them where I come from (Central Coast NSW) They couldn't be transformers because they are not connected to any other...
    • Naithi
    • Thread
    • ausie elec looking these things transformer
    • Replies: 10
    • Forum: Australia
  13. N

    Repurposed 3.2 KVA site transformer drawing 56A

    I never did like transformer theory in my degree course and that was 40 years ago. I'm a boat builder now and we tend to have big battery banks and thus big chargers with all sorts of dodgy stuff going on. I have repurposed a series of power transformers to be used as the basis of high power...
  14. M

    Demista pads powered by a 24v SELV transformer, with cabinet hinge used as a conductor

    I'm working on a site in the UK where a joinery company will be installing bespoke vanity cabinets. The cabinets will have MDF/mirrored doors with a demista (heated pad) laminated between the mirror and the MDF door. The Demista is powered by a 24v SELV transformer, located behind a small panel...
  15. M

    Replacing transformer for halogen spotlights

    Hi, I currently have halogen downlighting in bathroom each light with an individual transformer. One of the transformers has gone now and I have tried replacing with a new one which I believe to be like for like however it seems to make the odd crackling noise. Could this be due to being...
    • milan5baros
    • Thread
    • halogen replacing spotlights transformer
    • Replies: 2
    • Forum: Lighting Forum
  16. N

    Selling 30x FuseBox 32A RCBO Type A RTA063230B and SIET Neon Transformer 9kv 25ma

    Hi, Selling the following: 30 x FuseBox 32A RCBO Type A RTA063230B brand new in individual boxes - £11.99 each. SIET Neon Transformer 9kv 25ma - £100 CK Pro Cobalt Bi-Metal HSS Hole Saws 51mm-105mm - £10 to £18 Thanks
  17. M

    Can I safely replace a B-Curve breaker with a D-Curve breaker?

    Hello, I am an American living in Germany. I have some US appliances (120v) that I want to use, so I bought a 5000 Watt step down transformer. Unfortunately, plugging in the transformer usually trips the breaker. More than 1/2 of the time, but less than 3/4. When the breaker does not trip...
  18. H

    Power Inverter Without a Transformer? Please Help

    Hi, I'm new here and looking at this True Sine Wave Power Inverter from AliExpress, but I have never seen any inverter without a transformer? How do they work without one, and how does this one's build look for a cheapish China one? (£125) As I'm not abele to spend much money as it's to power a...
    • Hardergamer7
    • Thread
    • inverter please power transformer without
    • Replies: 1
    • Forum: UK Electrical Forum
  19. N

    reversing a step down transformer to step transformer

    Hi there im in training, but my question is using using a 3 phase 480v delta to 208/120 delta transformer 30kva and wiring it in reverse for 208 primary input for 480 volt secondary . My motor requirements is 460volts with the motor being 10hp,(14amps) but it has variable motor controls which...
  20. O

    Friedland 752 transformer giving higher than expected reading

    Hello, We moved into an old house (Wimpy 1957) and the doorbell doesn't work. I read the AC voltage on the old Friedland 752 transformer, and it's at 13V, not 3 or 5 or 8 as per the options. The solenoid on the bell might be getting too much power. Why might it read 13V? This person also...

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