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Re: International Harvester ELECTRALL
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Posted by John T Electrical Engineer on January 15, 1999 at 15:27:26:
In Reply to: International Harvester ELECTRALL posted by Charlie Chapman on January 15, 1999 at 10:07:04:
Charlie, I cant tell you anything in particular about the generator, but from the specs you gave, I can tell you how its output is wound and what uses it can provide. It is whats called a 208 Y 120 Volt 3 Phase 4 Wire Output. It should have 3 phase wires out and one neutral. The voltage from any of the three phase wire outputs to neutral is 120 single phase. The voltage between any two of the phase wire outputs is 208 single phase. The voltage of all three phase wire outputs is 208 3 phase which would run a 208 volt 3 phase motor or heater etc. So, it can run three legs of 120 volt single phase loads and also some single or three phase 208 volt motors. Now, your house current is 120/240 volt single phase three wire. It has two legs of 120 to neutral and one leg of 240 single phase between the two hot wires. Many loads designed for 240 will run okay at 208 but you have to know more about the specs and load if youre gonna try and run a heavy continuous 240 object at the reduced 208 because they will draw more current. Hope thats some help. If you want to use it as an emergency generator on a 120/240 single phase panel like at home, you could only use two legs and they would be 120 fine but the other loads designed for 240 like air conditioners, heat pumps, compressors MAY or MAY NOT be okay but for light non continuous use it will probably suffice. Heating devices like hot water heaters would be okay on 208 versus 240. John T Old Engineer in Indiana jmn50@msn.com
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