Thanks for the geography lesson, i realy should be more up on things like that. Unfortunatly i think the mazda tranny is different. Thanks for the offer! Jason Gnatowsky --- bratt <[EMAIL PROTECTED]> wrote: > I have been offered a diesel from a 1984 Mazda truck > and two transmissions for $350 Canadian. I don't > know the owner, and fear that the motor might be > junk. Probably comes with the transmission you > need. > > Regina, Sask is in Western Canada. You can find out > where by going here: > > http://www.expedia.com/pub/agent.dll?qscr=mmfn&&tpid=1&&&&dchg=&&zz=1048692854040&; > > > EdB > ----- Original Message ----- > From: jgnat1488 > To: biofuel@yahoogroups.com > Sent: Wednesday, March 26, 2003 6:38 AM > Subject: Re: [biofuel] Electric generators > > > unfortunatly a gas chevette transmission will not > work. It is an isuzu M75 (i think). Thanks for the > offer. I feel stupid for asking bu where is > Regina, > Sask? > --- bratt <[EMAIL PROTECTED]> wrote: > > Do you need a standard Chevette transmission? I > > have a five speed Chevette transmission, from a > gas > > engined Chevette. Where are you located? I am > in > > Regina, Sask. > > > > There is an interesting conversion of a 2 hp > > Induction motor taken off Taiwanese Mill into an > > alternator on a wind power plant at > > http://www.otherpower.com/danb_windmill.html > > > > EdB > > > > > > ----- Original Message ----- > > From: jgnat1488 > > To: biofuel@yahoogroups.com > > Sent: Tuesday, March 25, 2003 7:43 PM > > Subject: Re: [biofuel] Electric generators > > > > > > Could you elaborate more on the 3phase motors? > I > > may > > have a line on an old 9hp 3phase motor and it > is > > looking like i may be using the newly aquiered > > chevette for an angine and nothing else (can't > > find a > > tranny). My future plans are to be self > sufficient > > for > > power and this is one way i may (and likely > will) > > go. > > Thanks > > Jason Gnatowsky > > --- Ken Basterfield <[EMAIL PROTECTED]> > wrote: > > > Martin, and Darryl, > > > > > > It depends on what type of motor and how you > > connect > > > it. If it is a > > > commutator or 'universal' motor i.e. it will > run > > on > > > ac or dc, then it will > > > generate if rotated fast enough. However the > > > commutator is effectively a > > > rectifier so you would only get dc out. The > old > > > motor car dynamo is a > > > commutator motor, now of course superseded > by > > the > > > alternator. > > > > > > Induction motors, which run on ac only, can > be > > made > > > to generate provided > > > they are run faster than their nominal > > synchronous > > > speed. E.g. a 4 pole( 2 > > > north, 2 south poles) motor will have a > > synchronous > > > speed would be 1500 rpm > > > calculated from 50 (cycles per second) *60 ( > > seconds > > > in a minute) / 2 ( the > > > number of pairs of poles). > > > It will not however, motor at synchronous > speed > > as > > > the rotor needs to slip > > > to generate even enough power to rotate it's > own > > > rotor mass without any > > > load. The rated speed is about 1420 rpm ( > about > > 80 > > > rpm slower than > > > synchronous speed ) at full load off 50Hz, > but > > > drawing a significant lagging > > > power factor. > > > > > > A 6 pole motor would have a synchronous > speed of > > > 1000rpm with rated full > > > load speed at about 930rpm. > > > Scale all the speeds by 60/50 for 60Hz > operation > > > > > > The true synchronous motor is called an > > alternator > > > and they are few and far > > > between if you are on the scrounge, but they > are > > > what you get in a pucka > > > genset. > > > > > > Back to the common induction motor, if you > run a > > 4 > > > pole motor at say > > > 1580rpm off 50Hz ( faster than synchronous > speed > > ) > > > it will deliver current > > > provided it is connect to a 50 Hz supply, > and > > there > > > is the difficulty in > > > trying to use it as a free standing > generator. > > It > > > needs to draw a small 50 > > > Hz magnetising current from the mains supply > to > > > allow it to deliver power > > > back into the mains supply. It is then > called an > > > induction generator. > > > > > > Induction generators have specific > applications > > > where they are very useful > > > e.g in hydro electric pumped stations where > the > > > purpose is to use the head > > > of water in a high reservoir for supply > system > > load > > > topping ( assist > > > conventional generating sets when on max > load > > --e.g > > > 7a.m to 9a.m.) The > > > water descends turning a turbine which > rotates > > the > > > induction motor ( as a > > > generator to add power to the system ). > When > > the > > > supply system is on > > > minimum load e.g. in the afternoon, the > motor is > > > taking power out of the > > > system to pump the water back up to the top > > > reservoir awaiting the next peak > > > demand. All this is economically necessary > since > > it > > > tales such a long time > > > to get generating capacity on stream or to > shut > > it > > > down. It is a sort off > > > flywheel in which energy can be added when > spare > > and > > > extracted when needed. > > > > > > Another application once quite common is to > > supply > > > leading power factor > > > current to offset the normally lagging power > > factor > > > load. It is called power > > > factor correction and induction generators > do it > === message truncated ===
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