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Equipment Supplies Single
Why is neutral necessary in single phase systems?
I have seen a light bulb glowing is one of its terminals is pinned to the hots and the other is grounded.
Why can't all the equipments be connected the same way? Why does the power company provide two lines (P and N) for a domestic consumer? Rather, it can supply the live wire alone and ground the station neutral. Won't this save the conductor cost greatly?
It's not strictly necessary, but eliminating variations in ground resistance make the system more predictable and safe to use.
Some transmission lines do without a neutral, but when it gets down
to the user, with a lot of single phase to neutral/ground activity,
that good neutral connection becomes important.
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Having single phase converted to three phase electric - Which is the best way to achieve this?
I rent a small workshop that has a single phase electric supply, but I want to use a vacuum pump which needs a three phase supply. I'm thinking that there are two options available. Either I get the workshop wired up by an electrian or I buy a single phase to three phase converter. The trouble is I know absolutely nothing about these converters. Is it that simple just to buy a converter and that's it? I notice that these converters have am HP rating. e.g 5HP or 25HP. What does this mean? I'm just going to be running one piece of equipment which is a vaccum pump for my CNC router vacuum table. Would I need to buy a converter with a high HP rating. How can I work out which converter would be suitable?
You need to find a local company that will install a three phase converter.
I have installed then in Florida and Tennessee for small machine shops.
A service upgrade to Three Phase could cost thousands,and you would still have to pay for a machine hook-up.
The three phase converter only a few hundred,plus the electricians material and labor.The price will depend on size,distance and man-hours to hook-up.
Get approval from the landlord,for a new circuit disconnect.Then what you hook to the disconnect is yours.
Hope this help and good-luck!
