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Old EKR Archives: Subject - 230 volt |
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| tbt22 |
Hey guys, Can anyone tell me why I dont need a neutral on a Air Conditioner motor 230 v single phase? If its alternating current how does it alternate without a common?Through the ground? Thanks 
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| boccinono | No, it does not alternate through the ground or the neutral. Both those Phases are alternating at a phase angle of 90 degrees, plus or minus. Voltage is a difference of potential. To answer your question each phase is alternating between phases. |
| Scott Vickrey | Have a look at this post, I think it will help you understand. http://www.electricalknowledge.com/forum/topic.asp?TOPIC_ID=56&SearchTerms=220,volt |
| lucky1122 | The Ac uses 230V which means it does not require a neutral . Neutrals are required for line to neutral loads which this AC unit does not have. |
| lucky1122 | An electric range or an electric dryer would be examples of equipment that require a neutral since two types of loads are served both 240V and 120V |
| ArmyPrimePower | Isn't 230V 50Hz single phase (phase-neutral)? I haven't seen any 230V, 3 phase (phase-phase). |
| JimmyDee | quote: 230 or 240 volt 3 phase is used in many small commercial systems and gives a true 3 phase and a single phase 120/240 lighting system with the use of 2 transformers. It is called a high leg or wild leg system and is hooked (usually) in an open delta configuration. High leg is 208 volts to ground. Open Delta System Jim |
| RODALCO | There are still some older areas in Europe where 127 / 220 Volts 3 phase systems are in use. I'm originally from the Netherlands and in some places it was still in use till the late 1990's. Also in Belgium this 3 x 220 Volts, now 3 x 230 Volts is still in use. Eventually all will be superseded with the standard 230 / 400 Volts system. |