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I'm sure you could, but it wouldn't be practical. The reason for this is because 208 volts between two phases comes from a three phase transformer, while 240 volts phase to phase comes from a single phase, center tapped transformer. If you're asking regarding a resistive load, such as a heater, the load should work with 240 volts or 208 volts. There will be a slight difference in performance, but it shouldn't be very noticeable. If you're asking because you have a motor load rated for 208v, you'll likely see that the motor requires three phase 208 volt power and you only have 'two phase' 240v power. You can however supply a three phase equipment or motor with a device called a phase converter.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoYes. In fact 110V with low wattage can also be converted to 240V. If the voltage is AC, the easiest method is to use a step up transformer with the proper VA rating for the power you need to supply. 110V @ 20A = 2200VA or 2.2KVA. This means that the transformer output for 240V can supply about 9A to a load (2200 / 240) If the voltage is DC then you need to use a DC to DC conversion. There are different ways to do this. Voltage doubling circuits, inverter to powersupply combinations and even DC motor to DC Generator will convert the voltage.
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How can 240 vOLTS power a 277 vOLT light?
Slightly dimmly
240 cm equals how many feet?
240 cm = approximately 7.87 feet To compute this, divide 240 cm by 2.54 to convert it into feet: 240 cm / 2.54 = 94.488189 inches To convert this into feet, divide by 12 94.488189 inches / 12 = 7.87 feet
What happens when a 240 volt heater in plugged into a 110 outlet?
It'll only deliver 1/4 of the power.
Can you connect a 277V ballast to 208V line service?
No. A 277 volt ballast needs the correct voltage to operate. The 277 voltage is derived from the star point voltage of a 480 volt three phase system (277/480). The 208 voltage is a three phase line voltage whose star-point voltage is 120 volts (120/208).
Would voltage in a three phase supply change if neutral wire is disconnected?
No, The voltage will not change. The neutral is basically a ground and is used in conjunction with the phases to create another voltage and act as the return line in an electrical system. "Depending on the system that you have". If you have a 480 volt and used a neutral with it you would have 240 or 277 volt. The 277 volt is what is normally used in office lighting. If you have a 208 or 240 three phase system using a neutral you end up with the 120 volts that is used for just about all normal lighting, receptacles and general use devices used everyday.Additional AnswerWhile the supply voltage wouldn't change, the voltage across each phase of an unbalanced load may change if that load is unbalanced.
What happens when 240 volt equipment is plugged into a 208 volt source?
It should be ok
Can you convert 110 volt to 240 volt?
Yes
Normal voltage house in the US?
The vast majority of homes are supplied with 120/240 volt or 110/208 volt.
Do you need a step down transformer to run a 208 volt steam table on 240 volt feed?
Yes a transformer should be used. The steam table needs its correct voltage otherwise on 240 volts it will operate over its given specified nameplate wattage. A 208 volt heating element run off of 240 volt will have an output increase by 75 percent.
Do all electric ovens cooktops ranges and clothes dryers operate on 208v as well as 240v?
No, use only the voltage for the appliance that your utility system is supplying to your residence. If your system is 208 volts use 208 volt appliances. Likewise if the utility system is 240 volts use only 240 volt appliances. 208 appliances on 240 will overheat the appliances and 240 appliances on 208 will not produce the wattages that the manufacturer recommends for cooking and drying.
Can a standard 40 amp 208-240 volt single phase oven be wired to a 240 volt three phase circuit without using a transformer?
See Discussion Page
What is a 208 circuit?
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.
Can you run a 208 volt single-phase computer off 240 volt power?
No. The 1-phase 240 setting on your computer's power supply is for the 240V wall outlets in other countries. The 240 outlets in your home are 2-phase 240.
How do you convert 208 volt amps to 480 volt amps?
Add another leg of 120 to a three pole breaker.
What is the maximum volts that can be used on a 208 230 volt motor?
You should not go above 240 volts for that type of motor.
You have 240v and you need to convert to 230v for an air compressor?
Yes, you can use a 230 volt device on a 240 volt supply.
Is it possible to hook up a unit that is 208 volt single phase to a 240 volts 3 phase?
Any two legs of a three phase system are classed as single phase. If a 208 volt device is connected across two legs of a 240 volt system its current draw will be higher. It is not recommended to connect a 208 volt device to a 240 volt supply. Using a constant resistive load of 6000 watts for an example, the resistance of the unit at 208 volts has to be found. R = E (squared)/W = 7.21 ohms. Now using the formula to find amperage at this resistance I = E/R, 208/7.21 = 28.84 amp at 208 volts. If the 208 volt device is connected to a 240 volt supply the following condition happens. I = E/R, 240/7.21 = 33.29 amps. The device in now definitely overloaded and instead of its rated 6000 watts it is outputting W = A x V, 33.29 x 240 = 7989 watts almost 2000 watts more than the unit is rated at.Using a 240 volt rated device on 208 volts is more forgiving and is done quite often. Using the same 6000 watts on 240 volts the resistance is calculated to be R = E (squared)/W = 9.6 ohms. If the 240 volt device is connected to a 208 volt supply the following condition happens. I = E/R, 208/9.6 = 21.67 amps. To check this connection's wattage W = A x V, 21.67 x 208 = 4507 watts or about 1500 watts below its rated output at 240 volts.If the connected load is a constant wattage like a motor, the amperage and voltage will change to maintain the constant wattage. I = W/E. A motor rated at 6000 watts at 240 volts will draw 25 amps. A motor rated at 6000 watts at 208 volts will draw 28.8 amps.The CEC states that if a 208 volt rated motor is connected to a 240 volt supply its full load current has to be increased by 10 % for its overload protection.If the three phase source is delta connected, and the neutral/ground is at the center tap of one of the phase windings, then there is 208 volts available from neutral to the third phase leg. In this case, there would be no mismatch of voltage, and the 208 volt load will operate as designed.This particular configuration is not so common. It is sometimes used in a light industrial setting where a fourth transformer for the 120/240 split phase portion is not used - it provides 240 three phase delta only, 120/240 split single phase, residential style, and 208 single phase.See related links below (High Leg Delta)Note that 240 three phase loads are also not so common. In the case where 480 three phase is required in this configuration, then there is a step up transformer trio provided, ususally by the customer.
