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Oedipus: What riddles, what dark words thou always speakest! Teiresias: Nay, art not thou most skilled to unravel dark speech? Exit Oedipus stage left, confused.

"O wonder! How many goodly creatures are there here! How beautious mankind is! O brave new world, That has such people in't!"

Translation? (for those of us not au fait with iconography) Regards

I`m not concerned about island mode: I can live with the odd power cut. My take on it is that a 3 phase 400v delta motor 11kw run at 230v will provide 2.1kw accross 1 phase and another 2.1kw accross the other two phases. Using the 2.1kw from two other phases is problematic. With the first phase...

Using an induction motor/generator as a stand alone generator is quite common in small hydro setups but it requires capacitors etc and voltage is a bit suspect. If I were to use a single phase motor instead of 3 phase this would cut out the voltage mismatch, correct? If so how would this be...

In the UK there is a schedule whereby connecting to the grid at up to 16 amps per phase is pretty easy as long as simple protection and islanding prevention is used. This hopefully will encourage small generators, especially when it can be shown that using induction generators is cheap and...

Thanks waross. Is there any difference between an autotransformer and a transformer? I know the physical diff (2 coils or one) but is there a particular reason to use an autotransformer or is it cost/habit. Being able to sort out some simple rules for people to connect small hydro to the grid...

Thanks guys, over next few days I will try it out. More questions: the motor I will be using is as i said, 3 phase star delta. So on run the voltage in each phase is 400. Wiring as per suggestion means voltage at 230. does this mean that max power available will be (from 1 phase only)...

Thanks skogsgurra. The incoming power is singlephase 230v + neutral. Coils of motor are A1A2,B1B2,C1C2. Would I connect L1 to A1, Neutral to A2 (single leg of Y)? And by doing this would 2 other phases be induced in B & C when motor is energised and overcranked? If so would output power be the...

Hi, I am hoping to install a grid connected hydro power scheme approx 10kw. Trying to get a handle on the induction motor/generator. I understand about paralell connection of a 3 phase motor to mains: connect it to my waterwheel, speed it up to 1500+rpm (UK grid,230/400v)and it should generate...