Explanation please -- public bus induction power -- into basic physics?

[houlahound]

Sorry for the title, and sorry if there is already a thread on it.

This induction charger for a public transport bus. Can anyone break it down into basic formulas of high school physics. The air gap is frikkin huge. Earlier prototypes apparently had a secondary coil on the bus that was lowered but the bus drivers refused to be bothered to lower it according to internet myth.

This model I think has a fixed 10inch air gap.

That must be a huge coil/s and currents if a simple transformer equation is used.

Appreciate some detail of this design, what currents, coils, number of windings, losses etc in basic equations.

Thanks in advance.

http://www.wired.com/2012/12/induction-charging-bus/

 

[berkeman]

Where did you see that there is an air gap while charging at the bus stops. The claimed efficiency doesn't seem to match up with that number...

 

[houlahound]

The project leader said it in a national radio interview last night.

 

[berkeman]

The project leader said it in a national radio interview last night.

Well, that's not a very reliable source, IMO. Can you find a better source?

I would not want one of the cardiac pacemaker patients that I sometimes help walking onto a bus that had kilowatts of energy transfer going on through such a wide air gap. That's a very dangerous setup, IMO...

 

[houlahound]

Precisely why I am posting, will try find a better link.

 

[houlahound]

Found this, appears to be the official site, bunch of videos I haven't looked at yet.

http://www.waveipt.com/#!/

 

[houlahound]

From same company, solar roads. Will make a new thread.

http://www.fastcoexist.com/1681562/solar-roads-charging-roads-and-the-future-of-transportation

 

[houlahound]

K, given up on finding design specs. Thinking of emailing the manufacturer. Can some random guy off the internet do that?

Hi I'm a closet physics nerd off the internet, can you please send me the circuit diagrams of yr coils in those bus thingy's.

Would that even work?