Yes but a 208 volt heater is intended to be delta connected so there are only three terminals. The three heating elements could be rewired to run in parallel off a 220 v single phase circuit, and the heater would then operate at 12% excessive power, which might shorten its life.
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No. The heater will operate over its given specified wattage. A 208 volt heater run off of 240 volt will have an output increase. Ohms law stated that current is directly proportional to the applied voltage and inversely proportional to the resistance of the circuit. A 240 volt heater can be run off of 208 but the wattage will be reduced.
For example if the heater is 5000 watts at 208 volts, the current is I =W/E 5000/208 = 24 amps. The resistance of the heater is R = W/I (squared) =5000/24 x 24 (576) = 8.68 ohms. Applying 240 volts on the same heater whose resistance is 8.68 ohms results in this new heater wattage rating. W = E (squared)/R = 240 x 240 (57600)/8.68 = 6636 watts. This is 1636 watts higher than the manufacturer's safety rating.
W = watts, I = amperage, R= resistance in ohms and E = voltage.
You can connect a single phase 220V water heater to a 380/220V 3 phase supply. Simply connect it between one of the 3 hots and neutral. If the heater requres 110V this will not work, as this system doesn't have 110V. You will have to supply it off another panel in your shop.
You can. Any two legs of a three phase system is classed as single phase.
Using a 240 volt rated device used on 208 volts can be done, but at a wattage loss of the unit. For example using a 4000 watts hot water tank on 240 volts its amperage would be, Amps = W/V. 4000/240 = 16.6 amps. The resistance is calculated to be R = E (squared)/W, R = 240 x 240/4000 = 14.4 ohms. If the 240 volt device is connected to a 208 volt supply the following condition happens. Amps = Volts/Resistance in ohms, 208/14.4 = 14.4 amps. As you can see (and as ohms law states) as the voltage drops so does the amperage. To check the 208 voltage connection's wattage, W = A x V, 14.4 x 208 = 2995 watts. The 240 volt 4000 watt HWT will only produce 2995 watts which is 25% lower at 208 volts.
Yes, you can but the wattage output rating of the heater will not be reached due to the lower applied voltage. For example if the heater is 1000 watts at 240 volts, the current is I = W/E 1000/240 = 4.16 amps. The resistance of the heater is R = W/I (squared) = 1000/4.16 x 4.16 (17.3) = 57.8 ohms. Applying 208 volts on the same heater whose resistance is 57.8 ohms results in this new heater wattage rating. W = E (squared)/R = 208 x 208 (43264)/57.8 = 748 watts. W = watts, I = amperage, R = resistance in ohms and E = voltage.
So you can see if you have a 1000 watt 240 volt heater, at 208 volts you would only get 748 watts of heat.
yes, they are purley resistive. The wires would draw more current in order to put out the same amount of power. Dont hook it up off of 208 unless the manufacter says you can.
It is unlikely that the plug will match the outlet, if you do hook a 240 v heater to 120 volts, you will only get about 1/4 the amount of heat.
Yes, most equipment is rated 208-220-240 volts.
Yes, it will give you only 1/4 of of its rating
Yes, 220 is part of the nominal voltage range which covers a voltage range from 220 - 240 volts.
Yes but at a reduced wattage output.
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208 volts is not a common single phase voltage but you could just size your breaker to the capabilities of the conductor. 208 is normally a phase to phase voltage <<>> Many 230 volt motors can be connected to lower voltage supplies. These motors can be connected to supplies of 208 and 200 volts. The code requirement is that the 230 volt full load amperage of the motor be increased by 10% and 15% respectively for wire sizing and breaker selection. To answer the question you will need a two pole 15 amp breaker.
Answer for USA, Canada and countries running a 60 Hz supply service.To answer the first part of the question. No you can not convert 120 volts single phase into 208 volts 3 phase. In fact it is the other way around, the 120 volts is the line to ground (neutral) of a three phase 208 volt system.The second part of the question is dependant on there being a three phase 208 volt system already installed. To obtain 40 amps per phase would require a three pole breaker to be installed in a 120/208 three phase distribution panel.The distribution panel would most likely be in the 100 to 200 amp capacity range. This kind of installation would definitely have to be installed by an electrical contractor as inspections and permits would have to be taken out for the project.As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
In North America the only three phase supply that 120 volts can be obtained from is a 208 volt system. 120/208 is a common voltage connection that is used in many apartment and commercial buildings. The 208 voltage can be used in lieu of 220 volt appliance equipment and the line to neutral voltage results in 120 volts. It is obtained by the following formula 208/1.73 = 120 volts. For apartment distribution panels, two of the three legs are used along with the common neutral. The main distribution is kept in reasonable balance by alternating different apartments on different legs of the three phase distribution service.
Assuming it is a 208-volt line voltage (as normal in 3-phase) the phase voltage is that divided by sqrt(3), or 120 volts. Each phase has to supply 10 kW so the current on each phase is 83.3 amps.
No a 208 volt outlet does not need a neutral. 208 volts is the line voltage between any two legs of a three phase 208 volt system.
It should be ok
Yes, but the motor's horsepower rating will not be reached.
Yes by using a 3-phase transformer. The size depends on how much power has to be converted.
Yes.
208 volt, three phase
The 208 volt configuration is one phase of a three phase source at 240 volts, where the 208 volt circuit is connected between the center tap of one 240 volt phase (usually a grounded neutral, in the style of a standard 120/240 split phase system) and the high delta connection on either of the other two phases. 208 circuit would consist of two phases of a 208 volt wye system or could be all three phases. The voltage between conductors would be 208 volts. The voltage to ground from any phase would be 120 volts. A 240 volt delta system would give you a high leg to ground, somewhere around 190 volts and the other two would be 120 volts to ground.
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Yes, if there is a 208 volt connection on the multi tap ballast. One side of the 208 to the common terminal and the other side of the 208 supply to the 208 volt lead. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
Because its designed to operate at 230-460, not 120-208.
60 Hertz is the frequency that the welder should be connected to, to work as it is designed to.
You need to mention the Load connected to find the current.