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Joined: Feb 2009
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OP
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bought the ramp now, picking it up from chorley tuesday i think, will throw the money in the bank monday and buy it once ive got the ramp home safe!
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has supply cost come down? sure when i spoke to my landlord he said £10k? maybe that was to have it put in the other 6 units on my side?
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so are we happy that convertor will work? ont want to buy it if it wont work, its like pissing 100 away  
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I'm more electronics than electrical by trade but there are a couple of weird things in the spec ....
3 phase is invariable specified as between phase voltage which is 400V, whereas this specifies 250V but doesn't seem have a neutral connection which is where 250V comes from (any phase to neutral)
A motor is an inductive load, any power device normally gives some sort of indication of whether it will cope with an inductive load.
Perhaps an electrical person can give more info.
Whatever you do, if you use it, don't be tempted to change the frequency from 50Hz, whilst it may look like it just changes the speed of the motor, it is often the case that a 50Hz motor will produce lots more heat if not used at 50Hz and hence self-destruct.
Soz that I'm raising more questions than answers.
There's a real danger that the left will drag Britain back to the 1970s, with secure well-paid jobs, ample housing, properly-funded NHS and social care, free tuition, student grants, final salary pensions, affordable rail fares and fabulous films and music. David Osland 2025 We don't do charity in Germany, we pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn https://ddue.uk
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cheers buddy! just dont want no nasty suprises! does anyone know where i can pick these up locally?
dont mind spending a few extra quid
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I'm more electronics than electrical by trade but there are a couple of weird things in the spec ....
3 phase is invariable specified as between phase voltage which is 400V, whereas this specifies 250V but doesn't seem have a neutral connection which is where 250V comes from (any phase to neutral)
We are at the moment recieving between 210 and 260volts in to our houses depending on how clos you are to the substation. 3phase and no neutral and 3 phase and neutral dictate what kind of star/delta motors you are going to use, its tricky for me to explain as it took me a long time to get my head around it from the basics up but the input voltage on the converter should be ok. I think for £100 its worth a shot as it should resell again on the bay surely?
Uncertainty or not knowing causes depression, Im happy because I know I'm going to die one day!
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I'm more electronics than electrical by trade but there are a couple of weird things in the spec ....
3 phase is invariable specified as between phase voltage which is 400V, whereas this specifies 250V but doesn't seem have a neutral connection which is where 250V comes from (any phase to neutral)
We are at the moment recieving between 210 and 260volts in to our houses depending on how clos you are to the substation. 3phase and no neutral and 3 phase and neutral dictate what kind of star/delta motors you are going to use, its tricky for me to explain as it took me a long time to get my head around it from the basics up but the input voltage on the converter should be ok. I think for £100 its worth a shot as it should resell again on the bay surely? cheers for the advice bud! what would i need to know so we could be 100% acurate it would work?
Last edited by chris_gilly; 13th Feb 2011 10:22pm.
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In the middle of the ad, the guy says he is happy to tell you how to use it. Just say you have a 3-phase motor, will this drive it from a single phase supply.
There's a real danger that the left will drag Britain back to the 1970s, with secure well-paid jobs, ample housing, properly-funded NHS and social care, free tuition, student grants, final salary pensions, affordable rail fares and fabulous films and music. David Osland 2025 We don't do charity in Germany, we pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn https://ddue.uk
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I should say that my gut feeling is that this will do the job and it is an incredible price.
Normal 3-phase converters are around £300, and can be got down to about £200. Variable frequency convertoers are normally a lot dearer - not that you need variable frequency.
There's a real danger that the left will drag Britain back to the 1970s, with secure well-paid jobs, ample housing, properly-funded NHS and social care, free tuition, student grants, final salary pensions, affordable rail fares and fabulous films and music. David Osland 2025 We don't do charity in Germany, we pay taxes. Charity is a failure of governments' responsibilities - Henning Wehn https://ddue.uk
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I should say that my gut feeling is that this will do the job and it is an incredible price.
Normal 3-phase converters are around £300, and can be got down to about £200. Variable frequency convertoers are normally a lot dearer - not that you need variable frequency. i like your gut feeling 
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Then it is agreed, chris oh great guinnee pig of the convertors, do yee taketh the challenge?
Uncertainty or not knowing causes depression, Im happy because I know I'm going to die one day!
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Then it is agreed, chris oh great guinnee pig of the convertors, do yee taketh the challenge? one hath messaged thee seller and ya'll shalt see,
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CrocodileDundee
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CrocodileDundee
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Interesting conversation chaps. Good luck Chris'
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i had a reply and it would be fine, however a freind popped by today and you'll never guess what he had in the boot so got an expensive one for nowt vertually
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ha ha, class, dont suppose he has any more does he
Uncertainty or not knowing causes depression, Im happy because I know I'm going to die one day!
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