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Apr 21, 2016 13:08:17 GMT
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Can you not convert the three phase to single phase by using caps? I did that with my pillar drill. It can be expensive if the power is high as the caps start costing quite a bit. I had to have both run and start caps on my 1500w motor. Will cross that bridge when we come to it. Most likely run it off an inverter. Dependant on its power requirements and how many motors it's running. Just run a thick bit of cable out to the nearest street light ..... They have 3phase supply ..... |
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v8ian
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Apr 21, 2016 15:29:20 GMT
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I think street lights run off only a single phase, but 3 lights in a street are often wired up as as singles on opposing phases, you would have to daisy chain around the street to get 3 phase.
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Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style.
Austin A35van, very different------- but still doing it in style, going to be a funmoble
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Apr 21, 2016 18:24:25 GMT
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^^ Funnily enough,this is my garages closest neighbour at Chateau Bravo. Any one know where to connect the jumper cables? Hahaha  |
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Apr 21, 2016 18:44:29 GMT
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As long as everything's correctly grounded, there should be no issues...  |
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v8ian
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Apr 21, 2016 19:39:30 GMT
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^^ Funnily enough,this is my garages closest neighbour at Chateau Bravo. Any one know where to connect the jumper cables? Hahaha OOOOh, Thats easy for a man of your talent, you need to make 3 long HTB2 taper pins with a sharp point on one end, see those brown cable thingys coming out, put your wellies and gloves on, and with a big RUBBER mallet drive one pin thru each cable, Its not dangerous,(Honest) LOL, now you have some points to fix your jumper cables..... (Note, I take no responsibility for the electrocution of anybody who tries this) |
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Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style.
Austin A35van, very different------- but still doing it in style, going to be a funmoble
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Apr 21, 2016 20:07:57 GMT
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It's also probably worth noting that the majority of modern Variable Frequency Drives are able to convert a single-phase input into a 'simulated' 3-phase output. You do have to derate the drive substantially, though so it can get expensive if you're running Mahoosive Motors. Obviously, your wire English Wire Pixies are a different breed than the Colonial Wire Pixies that I'm used to wrangling, but I can't imagine that the derate factor would be anything other 1.73.
Although, I could totally be wrong; heck, I've damn near made a career out of it.
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Apr 21, 2016 20:45:21 GMT
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It's also probably worth noting that the majority of modern Variable Frequency Drives are able to convert a single-phase input into a 'simulated' 3-phase output. You do have to derate the drive substantially, though so it can get expensive if you're running Mahoosive Motors. Obviously, your wire English Wire Pixies are a different breed than the Colonial Wire Pixies that I'm used to wrangling, but I can't imagine that the derate factor would be anything other 1.73. Although, I could totally be wrong; heck, I've damn near made a career out of it. That was kind of the plan. I doubt it will be a huge motor as its only running a 300 x25mm thick wheel. Nice thing about running it on a vhf is a soft start so the streetlights don't dim as you switch it on,but more importantly you can maintain your grinding speed as the wheel gets smaller. Just up the frequency in proportion to the amount smaller the wheel is. No reason I can't swop out the coolant pump for a single phase unit,the headstock is driven by a small geared motor,so don't foresee any problems.....famous last words ! |
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Apr 21, 2016 21:49:04 GMT
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I think street lights run off only a single phase, but 3 lights in a street are often wired up as as singles on opposing phases, you would have to daisy chain around the street to get 3 phase. They must differ then .... Thats how my mate is going to power his workshop,the elec supply company are going to get a three phase feed from the street light near his workshop,and connect 3 phase that way ...... |
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v8ian
Posted a lot
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I think street lights run off only a single phase, but 3 lights in a street are often wired up as as singles on opposing phases, you would have to daisy chain around the street to get 3 phase. They must differ then .... Thats how my mate is going to power his workshop,the elec supply company are going to get a three phase feed from the street light near his workshop,and connect 3 phase that way ...... They should run 3 phase underground, and spur off a single phase to run the light, |
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Atmo V8 Power . No slicks , No gas + No bits missing . Doing it in style.
Austin A35van, very different------- but still doing it in style, going to be a funmoble
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There is three phase electricity in all neighbourhoods. All the houses in your street won't all be wired on the same phase. Remember years ago having to run power from the house next door as a hot water geyser burst in the loft and flooded the house. Was told by the electrician not to run that cable once all repairs had been implemented as next door would be on a different phase. Something to do with phase rotation and electrons not playing together nicely. Can't remember the exact details,but sure an electrician could rekindle the spark....
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Apr 24, 2016 17:27:23 GMT
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There is three phase electricity in all neighbourhoods. All the houses in your street won't all be wired on the same phase. Remember years ago having to run power from the house next door as a hot water geyser burst in the loft and flooded the house. Was told by the electrician not to run that cable once all repairs had been implemented as next door would be on a different phase. Something to do with phase rotation and electrons not playing together nicely. Can't remember the exact details,but sure an electrician could rekindle the spark.... Between a phase and neutral you get 240V. Enough to kill you. But between phases you get 415V which will kill you. That's why it's dodgy to lob an extension lead over the fence. If the houses are on a different phases you leave yourself open to a 415V shock. Or a loud bang if you accidentally connect the phases together. Interestingly, in our apps rooms we have rows of equipment bays and I think each row is on a different phase. It's forbidden to take power from one bay to the next so you don't accidentally introduce 415V. Doesn't stop people doing it though. I'm an electronics engineer by training. Anything over 50V or a couple of watts puts the willies up me. James |
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Apr 24, 2016 17:32:50 GMT
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Extension over the wall was only option to get wet and dry vacuum cleaners and dehumidifiers running over a long weekend. Mains supply was cut off. House was completely rewired after it dried out. 12v is enough to let the magic smoke out of most things,but better explosions to be had with higher voltage. I don't mess with it !
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Apr 25, 2016 11:26:09 GMT
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Come over here, we have 3 phase to each house, with different areas on different phases... Our kitchen / living / dining room is all one space, the living room end is on one phase, the kitchen end on another, with a 3 phase electric hob. Add in that most of the sockets have no earth connection and things get interesting  oh and the house was built in the 80s and uses screw in ceramic fuses. In my garage I have 3 phase sockets, some 16a singles on one phase, some on a different phase, and lights all over the place :lol: |
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Apr 25, 2016 21:10:29 GMT
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Come over here, we have 3 phase to each house, with different areas on different phases... Our kitchen / living / dining room is all one space, the living room end is on one phase, the kitchen end on another, with a 3 phase electric hob. Add in that most of the sockets have no earth connection and things get interesting oh and the house was built in the 80s and uses screw in ceramic fuses. In my garage I have 3 phase sockets, some 16a singles on one phase, some on a different phase, and lights all over the place :lol: My apartment in Kuala Lumpur was the same. I'd never seen 3 phase to a domestic box before! Again, no earth on the plugs but circuit breakers rather than fuses. |
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Similar to my house in Johannesburg then. Most of the older houses there all had two phases. Stove and water heater/ geyser on one phase, everything else on the other phase. No fuses in plugs. Circuit breakers with earth leakage. Never killed me,but may have a couple of grey hairs due to vindictive electrons....
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So,a fair amount of progress the last week that's kinda car related,but not,if you follow my Dutch Irish logic. With the imminent arrival of the cylindrical grinder at home,the garage had to get sorted. After a serious drop in mojo awhile back following me discovering 3/4 the way round the new ring main for the plugs,that I was using the wrong cable,enthusiasm dropped a bit lower than a snakes shytes shadow. So,back onto that during the evenings last week. Soon became apparent that I had the same chance of getting two sets of cables up a bit of 20mm conduit ,than Mr Trump winning the Noble peace prize. So, bit of a rethink,total rip out and start again. Sure none of you want to see a middle aged bloke pulling his wire,so no photos added. Switched on Thursday night,Lights. No Camera. No action. ,no bang,no whimper,no escaping of magic smoke. Job done. Went to bed feeling like the Doctor of Delight.....
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Last Edit: Apr 26, 2016 2:03:05 GMT by Deleted
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Home alone for the weekend...Ok, your never alone....Box of beer,tv remote in my possession,20l of floor paint, and Midas, the bearded dragon to look after me. What could go wrong....? Friday night saw most of the tat in the garage moved to the middle of the garage. About a 1 meter strip painted along two walls. Heaters on. Check. Dehumidifiers on. Check. Lights off. Check. Doors locked and all bearded Dragons fed and ready to......sleep. Check Saturday morning up early. Into garage. Floor not properly dry. Thought it a bit optimistic. Slight change of plan. Reshuffle garage about a bit more exposing more floor to be painted. Going have to do it in three sections instead of two. Finished second bit by 9 am. Coffee time and switch telly on. Motorsport. Whoop woop. Racing from Brands that I saw some of the previous week. More coffee. Super bikes. More coffee. Fishing programme. Touring cars. More coffee. Then formula E. Perfect. Watched the first three laps. Woke up from a most refreshing pre sleep nap with the prize giving just finishing. Perfect timing. Bit more Motorsport. Look at watch. Hmm. Day gone. Beer o'clock. Need box of beers in the garage. Hmm. Very bad planning. Beers put hastily in cupboard in the middle of the garage as the fridge was unplugged and pulled away from the wall so I could paint underneath.cupboard surrounded by wet paint. Should I lock up,go to Tescos and get another box? It's only about 5 pm? Nah,too easy. Time to hatch a cunning plan....  |
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So. Open garage door. Place long extension ladder over wet paint onto work bench. Walk up ladder. Hit head on roof. Teach neighbours new swear words. Continue more carefully,crouching over. Reach work bench. Get to end of bench without knocking anything off. Get to big stationary cupboard. Open door on far side. Lie on top and reach down. Managed to get two beers from the top level. Arms too short to reach next layer of beers. Oh well. Better than a poke in the eye. Get back through the Dulux maze and back across the grey sea without falling in. Result. Crack tin open and celebrate. Put down tin. Extricate ladder. Turn around to take ladder out. curse word. Hook bag of charcoal with end of ladder. Charcoal and dust all over the newly painted floor. Grrrrr
Time to burn something as two beers are not going to drown my sorrows. Impromptu barbecue. Full bag of charcoal does but doesn't really,fit into a small weber barbecue. Death by fire poxy charcoal bag. Step back. Get vacuum cleaner suck up majority of charcoal dust from floor. Paint over tiny bit that's embedded in wet paint. Walk past barbecue that's really going now,get past it with most my eyebrows and facial hair unburnt. Check freezer. Nothing barbaquable...Lock house. Lock garage. Drive to tescos. Get meat to burn. Get another box of beer. Go home.....
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I do like a nice "productive" day story! Makes me feel so much better about doing naff all. |
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By 830 the inferno had calmed down to a level that you could stand next to the weber for more than 30 seconds. Meat duly cremated into the house for dinner and a few tins. Two to be exact. The first and the last,as the ones in the middle don't count. Went to bed. Woke up a couple of times with Midas snoring. Well, it must be him as I don't snore...
Wake up Sunday morning halfway through a dream about Cowboys and Indians. Seems as if the Indians have slept in my mouth and left their teepees behind. Copious amounts of sky juice later I realise my mistake. If I had known I was going to wake up this thirsty ,I would have drunk more last night.....
Finished the painting on Sunday. So, lazy weekend,but surprisingly enough ,I got everything done I wanted to. Cylindrical grinder arrives tomorrow.....Glad I don't have weekends like that very often...
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oh and the house was built in the 80s and uses screw in ceramic fuses.