how can I find a 12 volt 60hz 3hp 110v electric motor with not less than 4000rpm?
916579
You can't...\nYou may be able to get a 3 HP 12 volt motor at 4000 rpm but the battery would be huge and so would the motor. You could get a 110V 60hz 3hp motor at 4000 rpm.... Any standard electrical motor supply vender can get this for you
1029495
It is impossible to tell from the information given.  YOu need to know the power factor and efficiency too.  \n\nAt full load of a motor that big it is likely to be 95% efficiency and have power factor of probably 0.8.  \n\nIF (!!) that is true, then the current is (75 hp * 746 W/hp)/(480  V *sqrt(3))/0.95/0.8 Amps (rms)\n\nNotice I've considered a wye-connected motor too - that's where the sqrt(3) comes from.  I also get 90 A (like the previous guy)!
541088
I am supposing that you are looking for the specification of ISO 1548:\n\nAbstract.\nIncludes the requirements for these components for use in aircraft electrical systems having voltage and frequency characteristics conforming to ISO/R 222, at any ambient temperature from -65 to +85 degrees centigrade, and all altitudes from 0 to 24 000 m. Gives terminology, requirements for dimensions, current, voltage and breaking-capacity ratings, time/current characteristics and tests.\n\nYou can buy the whole text on the source site.
135848
i would get this one http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=1645240&CatId=0 but you don't have to buy it from thm i am just giving you a link so you can check out the board
277639
These are always showing up in the local paper.  Also, ask around about used equipment stores.  Check the yellow pages, too.
1060070
You may try www.ebay.com in the search box put in "Laptop Power Supply" from that page you keep refining until ya get what you want or you can try "Want it Now" but the price will be higher!
467134
your best bet is to get in touch with the guys who built the motor and know it the best. these guys will tell you the right answer and they wont just be guessing. D.S.S.  Phone: 630.587.1169 or e-mail ecom2000@dssracing.com and here is their website http://www.dssracing.com/
531796
You would need multiple alternators plus an inverter to accomplish this.  A common Delco GM alternator puts out 120A at 13.5-14V DC at an engine RMP above 3000.  You would have to put the DC through an RV inverter (for use camping where you hook up a battery bank and get AC out).  Assuming inverter efficiency of 85%, you would need 7475 (or more if e is less than 85%) DC watts.  You would need 5 alternators to power your inverter.  The problem is the inverter is VERY expensive, as in thousands of dollars.  \n\nThe problem with using a car alternator as an AC source is it is THREE PHASE.  I have had people disable the regulator and get high AC voltage out, but it is three phase.  You would have a difficult time clocking multiple auto alternators so the phases all matched, and then you would only have 3 phase voltage (probably less than 220V but 120V) and it wouldn't be regulated.\n\nFor 6500 watts you need a belt driven gen head.  See northern tool link to belt driven 25KW head.  Also look at their inverters for taking DC and making AC (yeah, I know--americans use 120 but I'm sure you could find a supplier to go to 240)\n\nBut dollar for dollar, you would spend more to fool around with DC alternators than just getting a gen head which was rated at the wattage and voltage with self-regulation.  ALSO you must REGULATE the RPM.  SO just hooking it to a car engine isn't going to work without a governor, which car engines don't have unless you preserve the cruise control option and hook up the speed sensor (which may give weird results at high engine RPM such as 3600 for 60HZ or 3000 RPM for 50Hz).  NOTE: my links are for 120VAC at 60Hz.  Europe will have different specs.
451023
I'd check ebay & amazon.com
235012
Check Magnavox web-site, or your local Magnavox dealer.
370881
try this website http://www.howstuffworks.com/search.php?search=electrical%20motors%20and%20generators&ref=hpaw&page_ref=http://www.howstuffworks.com/
721867
Check with local energy company. good luck
1038226
http://www.dc-customs.net/\nwww.samincoinc.com/saminco/DC Motor Controllers.htm
690881
Try www.emp3finder.com You will probably find it there!
89341
Just buy the plugpack.\n\nIf you want more amps, or variable volts, be specific.
317786
http://www.electrospec.com/electronic/components-parts/index350.html\n\ntry here!!
511307
well you need the power factor as well, From O/P KW to I/P KW by I/P KW = O/P KW / Efficiency; I/P KVA = I/P KW / power factor; I/P Current = I/P KVA / (V3 x 480); V3 is a 3 phase motor is used. so simple.