Can you run 208V on 220V? 220-230-240 (depends on utility) is the standard nominal 1-phase voltage across both legs of the line (120 nominal being the voltage from either leg to neutral). Most devices designed for 220 will run on 208 and in shops all over the place this is commonly done.
Will a 208v motor run on 220V?
So the basic answer to your question is yes the motor will run on 208 volts. It will draw more current when doing the same work than it draws at 220 volts. The real question is can the motor insulation take the increased heating it will encounter in the application?
Can I use a 120/240 wire on a 208v system?
The following voltages are associated with a 120/240 system: 110/220. 115/230, 125,250. So even though it may work on 208V system proper practice would call for it to be connected to a 240V system. Click to expand... Not open for further replies.
Why is a 220 volt system rated at 220 volts?
The reason why it's rated at 220 volts is because of the voltage drop in the branch circuit conductors. No. It would have to be a 240 Volt system. The reason why it's rated at 220 volts is because of the voltage drop in the branch circuit conductors.
What is the 208/230v for?
My interpretation of the OP was that the 208 / 230V is the supply into some sort of servo amplifiers and the motors are connected to the output of the servo amp. If that is the case then it renders some of the discussion above irrelevant in this context, if still technically correct.
Is 208 volts and 220 volts the same?
In North America, the terms 220V, 230V, and 240V all refer to the same system voltage level. However, 208V refers to a different system voltage level. In North America, the utility companies are required to deliver split phase 240VAC for residential use.
Can you run 208V on 240V?
In short, just because a 208v motor may be designed to run on 230v or 240v systems by using two power legs from the utility source, that doesn't mean that it will provide the same output efficiency. You will see differences in performance if you try to use 208v when 240v is typically required.
Can 208V run on 230V?
Even though the system voltage of 3 phase 208 is within the -10% rating of the three phase 230 v motor, the 208 is allowed to vary to -10% or 187 volts -- and the motor will not work at that level.
Is 208 and 240 volt the same?
The difference between 208V three phase, and 240V single phase, is how the voltage is derived. 240V single phase is obtained by taking a single leg of three-phase power. 208V three phase is obtained by taking two legs of three-phase power.
Is 208V single-phase or 3 phase?
120/208V single phase is derived from 208V three phase power. If viewed on an oscilloscope, the three voltage waveforms on the three “hot” conductors all peak at different times: each one is 120 degrees behind the next.
Does 208V need a neutral?
Most 3 phase systems are 208 but there is a 3 phase delta that is 240V. In terms of the receptacle. They can be straight 208 single phase, 3 phase or single phase 208 with a neutral or 3 phase with a neutral.
How do I get 208 230v single phase?
2:136:25How is 208 volts different than 230/240 volts? - YouTubeYouTubeStart of suggested clipEnd of suggested clip208 really isn't single phase 208 is actually two phases we're taking two phases out of three. SoMore208 really isn't single phase 208 is actually two phases we're taking two phases out of three. So you have a building that has three phases of power coming into the panel.
Can a 3 phase motor run on 230 volts?
The single phase to 3 phase VFD is the best option for a 3 phase motor running on single phase power supply (1ph 220v, 230v, 240v), it will eliminate the inrush current during motor starting, make the motor run from zero speed to full speed smoothly, plus, the price is absolutely affordable.
Can you have 230v 3 phase?
Even at three phase you can use the 230V. You'll have 3 times the power available. That's called a star configuration.
How do you wire a 208V plug?
How to Wire 120V & 208V, 1-Phase & 3-Phase Load?A 208V three phase motor is connected to all three hot busbars plus neutral and ground wires.A 208V single phase water heater is connected to hot 1 and hot 2 plus ground wire.An 120V single phase standard outlet is connected to hot 1, neutral and ground wires.More items...
How can I get 208V?
The formula is volts times the square root of 3, which happens to be rounded off to 1.732. For 2 lines each carrying 120 volts, the calculation for this is 120 volts times 1.732, and the result is rounded up to 208 volts. That's why we call it a 208 volt three-phase circuit, or a 208 volt 3 phase line.
Is 240V 3 phase the same as 208V 3 phase?
208V is *not* the same as 240V. 208V is the voltage between phases of a 3-phase “Y” circuit that is 120V from neutral to any hot. 480V is the voltage between phases of a 3-phase “Y” circuit that's 277V from hot to neutral.
Why is a 240V system rated at 220V?
No. It would have to be a 240 Volt system. The reason why it's rated at 220 volts is because of the voltage drop in the branch circuit conductors.
Why is a motor rated at 220 volts?
The reason why it's rated at 220 volts is because of the voltage drop in the branch circuit conductors. Click to expand... I will not say that is necessarily wrong, but I find it more common to see equipment (especially motor driven) rated for 230 volts with that being the likely reason.
How many amps does a motor draw?
Generally if a motor is rated 10 amps at 230 volts that means when it is delivering its rated output power it will draw 10 amps if the input voltage is 230 volts. Change anything variable and most others will change also (frequency is usually an exception, if the supply is strong enough to sustain frequency) T.
Can a motor run on 208 volts?
So the basic answer to your question is yes the motor will run on 208 volts. It will draw more current when doing the same work than it draws at 220 volts.
Can you use 220V on 240V?
Likely you can. Does it actually say 220V on the nameplate? If so it is just about as questionable if it can be used on a 240 volt system, but if allowed to be used at plus or minus 10% then both are covered.
What type of power does a residential line need?
Things You'll Need. Residential supply lines typically lack three-phase power. Three-phase 208-volt electric motors are less expensive and more efficient than 220-volt single-phase motors. For this reason, three-phase motors are common on industrial and restaurant equipment, while similar equipment can be difficult if not impossible to find ...
How to connect a phase converter to a three phase disconnect?
Connect a wire from the T-3 terminal of the phase converter to the T-3 input of the three-phase disconnect. Connect a second wire from the T-2 terminal of the phase converter to the T-2 output terminal of the disconnect. Connect a third wire from the T-1 terminal of the phase converter to the T-1 output terminal of the disconnect.
What voltage is a single phase breaker?
Switch off the service panel breaker for the single-phase, 220-volt supply circuit.
Can you work on a live circuit?
Never attempt to work on a live circuit.
What is the difference between 230 and 208 volts?
Accordingly, what is the difference between 208 volts and 230 volts? This is a NEMA requirement. So, a 230 volt motor can operate as low as 207 volts. When a motor is rated at 208/230 volts this means the motor will operate at the 208 volt rating, not 10% under the 208 volt rating.
Is 208V the same as 240V?
208V is *not* the same as 240V. 208V is the voltage between phases of a 3-phase “Y” circuit that is 120V from neutral to any hot.
What is the minimum utilization for 208?
As jason said, the supply will fluctuate. ANSI C84 gives the allowable ranges. The A range minimum utilization for 208 is 191 . The B range ("limited in extent, frequency, and duration") is 184. These are below what many 230 rated devices will accept.
How much voltage is allowed on a motor?
You are usually allowed +/- 10% on voltage for general purpose electric motors.
What voltage is a bun toaster?
Problems are now occuring when globalization is forcing manufacturers to to create 1 piece of equipment that will function at 208,230,240V and it comes with a name plate voltage of 220V. A large well known food chain now has all new equipment rated at this voltage including bun toasters
What voltage is a motor?
The standard motor voltage is 230volts. For years 230 volt motors were run on 208 volts. Machine manufacturers were well aware that 208 volts 3 phase was far more common than 240 volts 3 phase and sized their motors accordingly. In recent years there has been a trend to closer sizing and 200 volt rated motors are now commonly used on 208 volt systems.
How much is 208 half the time?
Half the time 208 is only really 19x anyway.
Can you use two transformers on three phase?
Hi Keith. If you don't need a perfectly symmetrical neutral, two transformers works fine. I have had many occasions over the years to use a two transformer boost on three phase and have never had an issue.
Can a 230 volt system run on a 208 volt system?
Taking a 230/240 volt system and running it on 208 could easily cause the issues you are seeing.
How many amps does a 220 volt circuit draw?
The 220 Volt connection may be expected to draw 8.8A x 60Hz / 50Hz = 10.56 Amps. Close enough 10.2 Amps for me.
Why are motors designed for multiple voltages?
I understand that motors designed for multiple voltages are designed so that the motor will have adequate torque and will be able to safely carry the current at the lower voltage. On the other hand, they are designed to take a higher than normal voltage before saturating.
Can 380V 50Hz be used on 208V?
In this case, the 380 V, 50 Hz rating will be on the same connections as the 440 V, 60 Hz rating. The motor will be slightly over wound to allow the extra current. This will allow the motor to be used on 208 Volts without overheating.
Is 440V a standard voltage?
The 440V isn't a standard 60Hz voltage as far as I know, but because we can deduce that the windings are connected in star for 440V we can calculate that the voltage you'd need to use this motor on 60Hz in a delta connection is about 254V, which is another non-standard voltage.
Can you use a 208V motor on a 50Hz 3 phase?
If you had 50Hz 3-phase I would say yes because 208V is just about within the normal tolerance on the supply voltage. I suspect from the 208V that you are in the 60Hz world, likely North America, and in that case the answer is no. The 220V and 380V are standard European 50Hz voltages for delta or star connected windings respectively. The 440V isn't a standard 60Hz voltage as far as I know, but because we can deduce that the windings are connected in star for 440V we can calculate that the voltage you'd need to use this motor on 60Hz in a delta connection is about 254V, which is another non-standard voltage.
Can a 230 volt motor be used on 208 volts?
With the newer motors driving loads that will demand 100% of the horsepower rating I would hesitate to use a 230 Volt motor on 208 Volts. 200/230/460 Volt motors are now available for that service.
Can a mill motor handle 208 volts?
Older motors have less problems on 208 Volts and motors such as mill motors that are seldom loaded to 100% 100% of the time should accept 208 Volts. If there is a problem with overloading a mill on the occasional heavy cut, the overload protection should do its job and trip the motor off.
How many volts does a 3 phase 208 motor have?
Even though the system voltage of 3 phase 208 is within the -10% rating of the three phase 230 v motor, the 208 is allowed to vary to -10% or 187 volts -- and the motor will not work at that level. This motor was built to be used on 240V system.
What is the voltage of a cooking appliance?
Most cooking appliances are rated at 240 volt. The nominal voltage is 240 volt, but homes may have 208V, 220V, or 240V power supply. Any appliance that is rated for 240 volts and can also be used on a 220V or 208V outlet. Will a 240v dryer work on 208v?
Can a 240V dryer run on 208V?
Re: 240V Dryer On 208V It will be fine, starting torque will be a little weaker but typically that's more of an issue with washers.