208 single phase vs 208 3 phase
Jul 07, 2004 · For those of you who don't know 208V is 120V 3 phase line to line. Just about the only thing common between a single and 3 phase motor is that there is a shaft sticking out of the end of the motor that turns. A 3 phase motor is a completely different animal than a single phase motor and you most definately cannot substitute one for the other.
120/208 is common in buildings with a large single phase load, ie. lighting and a limited 3 phase load. Many schools are this way. Unless you need every last ounce of rating out of a motor 208 should work without any problem.Three-phase electric power (abbreviated 3Φ) is a common type of alternating current used in electricity generation, transmission, and distribution. It is a type of polyphase system employing 3 wires (or 4 including an optional neutral return wire) and is the most common method used by electrical grids worldwide to transfer power.. Three-phase electrical power was developed in the 1880s by ...Current practice is to give separate services for single-phase and three-phase loads, e.g., 120 V split-phase (lighting etc.) and 240 V to 600 V three-phase (for large motors). However, many jurisdictions forbid more than one class for a premises' service, and the choice may come down to 120/240 split-phase, 208 single-phase or three-phase ...Description: 3 Phase 208V Motor Wiring Diagram with 208V Single Phase Wiring Diagram, image size 1021 X 500 px, and to view image details please click the image. Here is a picture gallery about 208v single phase wiring diagram complete with the description of the image, please find the image you need.
Answer (1 of 4): Only three of those voltages would normally be encountered in a three phase system, 208, 220 and 277. With typical Wye secondaries of 3 phase systems in N. America, 208 is the line-to-line voltage of a system which delivers 120 volts line-to-neutral which is common for residentia...But, the phase-to-phase voltage measurement between points "b" and "c" would, in fact, be only 208V. This is because the voltage waveforms at "b" and "c" are 120° out-of-phase with each other. The phase-to-phase voltage is √3 times the phase-to-neutral voltage, so V=120*1.73=207.6V. Boats with 2, 120V, 30A shore power cords ...