Phasing nightmare

[Michael Smith]

I want to build a house thats mains-less (no need for the grid (but still attached for emergency needs)) but..... i have had a look around and they recommend that 3 phase systems are more stable than single phase and uk houses run single phase, but as i want to build a huge F in pool too, i need a 3 phase supply for that, which easy answer is.... get a single to 3 phase transformer...... but what can i do if my 'Mains' supply is 3 phase from a motor generator which WILL recirculate to power itself

i need a system that will:
power at 230/240V 1PH 100A 200KW
BUT
Also 330/480V 3PH 100A 400KW

Possible????


the motor generator: 480V 3PH 200A 1000KW (200KW to power itself)

just a funny thought ---> maybe put a HUGE flywheel on the motor so i can hand crank it up

 

[Silly Sausage]

just a funny thought ---> maybe put a HUGE flywheel on the motor so i can hand crank it up

For free power, get a ginormous cage wheel and fill it with hamsters.
The trick is getting them all to run in the same direction.

 

[HandySparks]

Is it Friday?

 

[snowhead]

Is it Friday?

Or Homework time for 11 year olds??

If the post is serious, the O.P needs Professional help in 2 areas.

Design and spec of the Electrical system and medical to be thinking they can generate their own stable supply cheaper than the grid can supply.

 

[davesparks]

Or Homework time for 11 year olds??

If the post is serious, the O.P needs Professional help in 2 areas.

Design and spec of the Electrical system and medical to be thinking they can generate their own stable supply cheaper than the grid can supply.

Make that 3 areas

Thinking you can put 200KW in to a motor/generator set and get 1000KW out and use 200KW of that to power itself has got to be in a class of its own!

 

[Besoeker]

the motor generator: 480V 3PH 200A 1000KW (200KW to power itself)

Perpetual motion resides in the same loony bin as the philosopher's stone.

 

[trev]

Perpetual motion resides in the same loony bin as the philosopher's stone.

Or in the mind of that Polish guy who's on my ignore list.

 

[Michael Smith]

come on guys..... i want serious solutions.... :book:

 

[davesparks]

There is no soloution, you cannot have a motor generator powering itself!

 

[trev]

Nor can you generate a stable supply as cheaply as the grid can give you.

 

[Silly Sausage]

come on guys..... i want serious solutions.... :book:

Move next to a big river and install a large water wheel.

 

[Michael Smith]

if what you are saying is true then your making out that motor generators have no point
example:
1 unit (1KWH) is £80p; if im using 2000KW then thatll be £1600 per hr to run it...... the motor generator can use 1/5 of the power and produce the same output (£320 for 2000KW (at 100% load)(can be +/- as dependant on the amount of generators running and their loads)

so if they can use 1/5 of the power as INPUT then they CAN have spare OUTPUT which if it is sufficient then it CAN power itself, obviously it can be unstable, unless you install a storage device..... ie a power pack for it so power is drawn WHEN needed and you can send the grid back the remainder of the power left... i should think thatll sort the 'unstable' power

 

[trev]

So how much would a supplier charge you per kwh?

 

[davesparks]

Motor generators have a purpose, they can convert one form of AC to another amongst other things.

But they cannot create power, they always have a power loss across them.

Any generating system will not be 100% efficient, this would be against the laws of nature.

 

[davesparks]

if what you are saying is true then your making out that motor generators have no point
example:
1 unit (1KWH) is £80p; if im using 2000KW then thatll be £1600 per hr to run it...... the motor generator can use 1/5 of the power and produce the same output (£320 for 2000KW (at 100% load)(can be +/- as dependant on the amount of generators running and their loads)

If your are really going to be using 2MW then you will not be on a standard domestic tariff from the electricity supplier!