transformers
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What transformers kill LED lights
I am having a bit of trouble with finding transformers that want to play nice with my LED MR16 bulbs - any thoughts?- LightRabbit
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- led led lights lighting lights transformers
- Replies: 8
- Forum: UK Electrical Forum
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transformers
now i think i should know this but i don't know wether logic will apply a 230 to 110V transformer the 110V machines will take about 30A which is about 3.6kva now the cable will run about 20m and i was going to run in 10mm 3core swa to a 40A switch then i was going to run a 4mm tw/e ring now...- redface
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- transformers
- Replies: 7
- Forum: UK Electrical Forum
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24 volt, 50 hertz, 81 watt pump
I've got a very well made 24 volt, 50 hertz, 81 watt pump, however I do NOT have a transformer/converter. I'm from down-under, so we run on between 220 to 250 volts. Is there a nifty trick one can do to get this thing running on 240 volts? Can I put a different transformer in-line with a...- hugereductions
- Thread
- panel pump secondary transformer transformers volt volts
- Replies: 6
- Forum: UK Electrical Forum
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110v transformers
hello all, does anybody know what sort of power factor 110v transformers deal with. would it be a standard 0.85? i want to know what kw output i'd get out of a 3.3kva tranny before i buy it. ta- tank
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- 110v maximum rated transformers
- Replies: 7
- Forum: UK Electrical Forum
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Kitchen spot transformers in the attic!!!!!!
lads, While i was working at a customers house the other day he asked me to look at 3 of his kitchen spots (12volt) that were not working. Anyway a VERY long story short i found the transformers.........in the ATTIC. A big bank of 60va trannys that do the bathroom as well. Now that means... -
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transformers
Please can anyone explain the theory behind transformers and 12 volt halogen bulbs. My dimmer transformer is about ten years old and is made by IBL lighting. It is a 4105.00, this is presumably their number. 20-75VA 24 230AC 50/60HZ 75VA max Six 12volt halogen bulbs run off it...- Zaffy
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- aus transformers
- Replies: 6
- Forum: Australia
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240v - 12v downlighter transformerkeeps blowing.
Hi, I have replaced this twice and they have both blown within a few minutes of fitting. There are 3 lights on the circuit each with their own transformer and a dimmer switch. This installation has been up for 10 years with no problems till now, the other 2 lights are fine. 2 transformers...- vinpug
- Thread
- 12v 240v aus blowing secondary transformer transformers
- Replies: 7
- Forum: Australia
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under cupboard lighting help
hi i am at ajob and the customer has already fitted the under cupboar lights all of which are different which is somewhat annoying. i have brought the transformers for them and the are the correct rating. i just dont have a clue how to fit them. this is the first time i have ever had to fit...- ch657
- Thread
- aus cupboard help light lighting lights transformer transformers under wattage
- Replies: 7
- Forum: Australia
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All these circuits with spot lights & transformers!
Hi, While doing an IR testing on the lighting circuits, these spot lights & transformers are a pain in the back side. The transformers are usually in the most inaccessible places and if you test them with 500v they get blown up or give undesirable results. Is testing IR only between earth and...- Goody
- Thread
- circuit circuits lighting lights these transformers
- Replies: 6
- Forum: Periodic Inspection Reporting & Certification
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Why do faulty Transformers give off a charge on the negative cable?
Hello folks, Could anyone please explain the following circumstances to me?? A customer had their lighting breaker trip when they turned on a light. They put the breaker back on and the lights didn't work at all. Yours truly went round to investigate and found that there was a charge coming...- mcummins7
- Thread
- aus cable charge fault faulty neutral off times transformer transformers
- Replies: 9
- Forum: Australia
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Circuit tripping with tranformers.
I have just replaced some dimmable transformers. But they keep tripping the circuit, the transformers a new and I installed first without a dimmer switch. If I disconnect them the circuit stays closed, is there a way to test the transformers?- toast
- Thread
- aus circuit dimmer lamps transformer transformers tripping
- Replies: 8
- Forum: Australia
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Testing transformers
Hi this is my first post on here> Can anyone help me with testing 12v transformers? I've tested low voltage bathroom fan transformers ok, but not low voltage light transformers. I'm using a Megger, and some of the transformers say 'dont test with a megger' on them? I guess i'm missing a trick...- mcelectrical
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- aus testing transformers voltage
- Replies: 1
- Forum: Australia
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Lutron Dimmer
Hi Anyone got any advice which transformers I might use for Lutron Dimmers, my wholesaler isnt to sure if his bog standard 230/12V will suffice? Cheers- Kiers1970
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- aus dimmer lutron standard transformers
- Replies: 6
- Forum: Australia
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RCD Protection or not????
Hi, got a 3 phase transformer on a construction site (office refurb) fed by 6mm swa, form an old 3 phase d/b. Should the swa to the transformer be rcd protected or not, the regs are not really clear on this? The cable is tied up and taped with caution markings. Thanks Craig- hoppy
- Thread
- cable canada phase protected protection rcd sites transformers
- Replies: 1
- Forum: Electrician Talk | All Countries
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Transformers
Hello again guys Quick question. using 20w/12v lights bvut they keep blowing my transformers. The spec of the trans are 10w-60w input 240v output 11.4v. My firm seem to think they havent had trouble with them (trans) before. Would it be that theyre output is only 11.4 and the bulbs are...- tuckerkop81
- Thread
- aus transformers
- Replies: 1
- Forum: Australia
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Scot transformers
My neighbour had me look at there kitchen lights today as they wasnt working and I couldnt believe what I found. transformers had burnt out but where the cables from the transformer to the light fitting conntect in the top of the downlight the connector block had totally melted and burnt out the...- Bright.Spark
- Thread
- aus transformers
- Replies: 1
- Forum: Australia
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current transformers
what are they and why fit them? apparently scottish power insist on them if your over 100a per phase. anyone know why?- gamblor6
- Thread
- canada current transformers
- Replies: 8
- Forum: Electrician Talk | All Countries
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details of transformers for bench sockets
hi all. 1st post so go easy. i am currently doing the 2391-2 design course and have the Carters Automotive Electronics project. Part of the assignment asks for details on the bench sockets using electrical separation. I cant seem to find any info on here about how tranny would be fed from d/b...- Carlos76
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- bench canada details electrical socket sockets supply tranny transformers
- Replies: 19
- Forum: Electrician Talk | All Countries
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Installing current transformers
I have been installing ct's for current monitoring, I have been asked to put up outside air temperature sensors which relay back to the monitoring board, whilst I'm quite capable to do this I don't understand what they would be used for? Anyone enlighten me? Rob- rmaynard
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- canada current installing transformers
- Replies: 7
- Forum: Electrician Talk | All Countries
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Transformers 1kva 3kva 5kva
Was wondering what the OV in a transformer stands for? OV EARTH EARTH OV 415V 110V This was how the transformer looked inside. I just assumed the OV was for the neutral but was told it wasn't? Any help appreciated, thanks!- OhmSweetOhm
- Thread
- transformers
- Replies: 3
- Forum: Talk Electrician Forum
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