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This setup produces three different voltages If the voltage between the center tap (neutral) and each of the top and bottom taps (phase and antiphase) is 1 V (100%), the voltage across the phase and antiphase lines is 240 V (0%), and the neutral to "high leg" voltage isOn 1/240V, 3 phase Delta systems, watch out for phase 2, the wild leg Cannot put 1 volt loads on this phase, because voltage is 8 volts to neutral Sizing Feeders for Panels 1 Feeders to panels must be equal to or greater than ampacity of main breaker This assumes short runs with less than 3% voltage drop, copper feeders However, because they are phased Exactly the same, measuring the voltage shows double the voltage(Leg 1 1v, Leg 2 1v), as the two voltages are added together Three phase legs are 1deg out of phase, phase to phase Normally adding three legs together would add all the voltage together (360vac)

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230 3 phase voltage per leg- Most types of threephase power calculations are performed using this equation P = √3 × pf × I × V This simply states that the power is the square root of three (around 1732) multiplied by the power factor (generally between 085 and 1, see Resources), the current and the voltageFor 2 lines each carrying 1 volts, the calculation for this is 1 volts times 1732, and the result is rounded up to 8 volts That's why we call it a 8 volt threephase circuit, or a 8 volt 3 phase line A 400 volt threephase circuit means that each of the 3 lines is carrying 230 volts

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 Figure 7 – Delta connection – three phase, three wires Go back to Three phase power measurements ↑ Wye and Delta comparison The Wye configuration is used to distribute power to everyday singlephase appliances found in the home and office Single phase loads are connected to one leg of the wye between line and neutral The nameplates on the equipment say 230 V threephase The building I am putting it in has 1 240 with a Delta high leg I am worried that the high leg will Will harm the equipment as it goes to a control panel with lots of relays You are measuring the 3 phase to neutral (ground) Measure the voltage between phases I have seen the "wild leg" as low as 190vac and as hight as 250vac measured to ground especially on open delta systems!

Electrical Single & Three Phase Line kVA calculator is an online tool used in electrical engineering to measure the unknown quantity by two known quantities applied to the below formulas for single phase and three phase connection To calculate kVA, you need to enter the known values of voltage and the current into the respective fields the line to neutral (phase) voltage V LN = 400/√3 = 230 V phase 1 apparent power = 80 x 230 = 18,400 VA = 184 kVA phase 2 apparent power = 70 x 230 = 16,100 VA = 161 kVA phase 3 apparent power = x 230 = 18,860 VA = 16 kVA Total three phase power = 184 161 16 = 5336 kVA The voltage between any one leg and ground will be 277 volts, and between any 2 hot wires will be 480 volts 3 phase machinery runs off Delta voltage, which means you only run 3 hot wires and no neutral wire If you mistakenly wire a 230 volt machine at 480, it will not run faster

8 230 0 8 230 Low Voltage 240 3 Phase 3 Wire Delta Connected (B) (Normally Ungrounded) (1) 230 8 230 230 8 230 1/240/240 3 Phase 4 Wire Tapped Delta On some systems grounding of one leg may be utilized (2) Some Single Phase equipment may be rated for 265 VoltsAnywhere from 10 to v The wires running from thAC power oscillates at 60 cycles per second (60 Hz) in the US Other parts of the world use a 50Hz standard The AC voltage oscillates from 1V to 1V With the two legs feeding your house being out of phase, can you pick up 240V AC by using both legs rather than one leg

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Voltage between High leg and Neutral = 1/2 x 2V x √3 = 8V (1Φ) Voltage between two hot Phase = 1V x 2 = 240V (1Φ) Voltage between three Phases = 240V (3Φ) These are the general setup and may vary and depend on the installation eg neutral wire may be needed for three phase 240V outlets etc In my folks old farm house, at the panels main input from outside L1 is 130v L2 is 112v When a load is applied both legs down voltage, allot! 600/347 volt is a 3 phase system where any phase to ground is 347 volts Phase to phase is 600 volts This system works the same as our 480/277 volt 3 phase system Both are the wye configuration sometimes the 600 or 480 will come from the POCO other times High voltage such as 13,800 volts will hit a step down transformer on the property

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Only three of those voltages would normally be encountered in a three phase system, 8, 2 and 277 With typical Wye secondaries of 3 phase systems in N America, 8 is the linetoline voltage of a system which delivers 1 volts linetoneutrThe voltage between any one leg and ground will be 277 volts, and between any 2 hot wires will be 480 volts 3 phase machinery runs off Delta voltage, which means you only run 3 hot wires and no neutral wire If you mistakenly wire a 230 volt machine at 480, it will not run faster It will most likely burn the motor upIn comparison to a single phase, threephase power arrangements supply puts greater sums of power — 1732 times the single phase — on the same current In loads that use low amounts of power — such as the lights, television, radio, computer and scanner — the power can be supplied by any of the three 1 V singlephase power circuits

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 A lot of high wattage appliances, however, will require 240 volts hookup to operate at a lower power consumption rate A 240 volts hookup is usually provided through a twowire cable such as 12/2, 10/2, or 8/2 or threewire cable such as 12/3, 10/3, or 8/3, the last digit being the number of wires in the cable excluding the ground wire Wiring an outlet for 230 volts is identical to wiring an outlet for 2 or 240 volts When electricity is wired into a home, the power company delivers electricity at 1 and 240 volts with a plus or minus of 5 percent Therefore 2, 230 and 240 volts are all interchangeable and wired the sameAlways check nameplate information before designing protective devices, wiring and switch gear SinglePhase Motors HP and FullLoad Currents A motor of a given rated horsepower is expected to deliver that quantity of mechanical power at the motor shaft

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AC three phase amps to kilowatts calculation Calculation with line to line voltage The power P in kilowatts (kW) is equal to square root of 3 times the power factor PF times the phase current I in amps (A), times the line to line RMS voltage V LL in volts (V) divided by 1000 P (kW) = √ 3 × PF × I (A) × V LL (V) / 1000 Calculation with 8V 3 Phase Power 8V 3 Phase power has 3 electrical legs (phases) evenly spaced in a circle (360 degrees / 3 phases = 1 degrees) around a center (neutral) Each leg (phase) provides power (phase voltage) at a unique angle (phase angle) to the center (neutral) 8V 3 Phase power also goes by the names 8V 3 Phase 4 Wire and 8Y/1VDavidDavid@DavidJonesACcomFollow me on Facebook https//wwwfacebookcom/DavidJonesAC

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The voltages between the three phases are the same in magnitude, however the voltage magnitudes between a particular phase and the neutral vary The phasetoneutral voltage of two of the phases will be half of the phasetophase voltage The remaining phasetoneutral voltage will be √ 3 /2 the phasetophase voltage So if AB, BC and CA are all 240 volts, then ANPhase 3 Phase 3 wiring should be blue Neutral Neutral wiring should be white Ground Ground wiring can be green or green with a yellow stripe In some uncommon situations, one phase will have a higher voltage than the others These are known as highleg connections While rare, they can be identified by looking for a wire that is marked1/240 volts 3 phase 115/230 volts = 115/230 KV 277/480 volts 3 phase 265/460 volts = 265/460 KV 115/0V WYE SYSTEM, "Y" _____ Wild Leg 8 volts to neutral Do not use L2 to neutral for 1 pole breakers, will supply 8 volts Only L1 and L3 can be used for 115 volts 115/230 V, 3 phase DELTA SYSTEM, Y

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 The voltage you are seeing on the high leg should be closer to 8 (1 X 173) than 240 The industry standard for metering 4 wire services call for the high leg to go on the right, or "C" phase while the code calls for the high leg to go on "B" phase on customers equipment Thats always been confusingThe formula to convert kVA to amps in a threephase circuit looks like this Current(A) = Power (kVA) × 1,000 √3 × Voltage (V) So, amps are equal to 1,000 times the power in kVA divided by the square root of 3 (1732) times the voltage For example, let's find the current for a 440 volt threephase circuit with 50 kVA of apparent powerFigure 4 below shows two typical examples of three phase utility grid voltage configurations used in the United States Europe and Asia typically use 2/380V or 230/400V configurations instead The 1VLN per phase is equivalent with the 8VLL vector

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460 volts motor 3phase 125 amps/hp; A two phase 230 volt circuit is actually one phase, center tapped with grounded neutral so that the voltage from each leg to neutral is 115 volts, and the voltage from leg to leg is 230Singlephase power is primarily for residential use (such as homeowners and what you would find in a hotel) while 3phase electric power provides more stable, heavyduty power for most industrial applications like manufacturing plants, commercial facilities, data centers, telecom towers, hospitals, food processing, and utility power plants

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If the delta secondary has not been referenced to ground by the installer by corner grounding the unit, then it is impossible to guess what the phase to ground voltages may be If the unit has been corner grounded, then two of the phase to ground Any two legs will give you the phase to phase voltage either 8 if it's a "Wye" transformer or 240 if it's a "Delta" connection The trick is to balance the loads within 10% across all three phases so that AB, BC & AC all have about the same load If he has several loads and a 3 phase panel board it's easily done That means using phasephase voltage on it wouldn't make sense, you should be using a three phase motor instead The 1V vs 240V is not related to phase to phase voltage(or live wire to live wire) as that would be \$1\sqrt(3)\approx 7V\$ It is a refference to the outlet voltage for different countries You have 1V 60Hz (for example US)

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Yet line to line was 240vac or a few volts Connection to your machine should not be a problem but you must check see if any one line was used to ground Most machinery have a transformer connected to the input and all single phase power 8V 3 Phase Power 8V 3 Phase power has 3 electrical legs (phases) evenly spaced in a circle (360 degrees / 3 phases = 1 degrees) around a center (neutral) Each leg (phase) provides power (phase voltage) at a unique angle (phase angle) to the center (neutral) 8V 3 Phase power also goes by the names 8V 3 Phase 4 Wire and 8Y/1V230 volts motor 3phase 25 amps/hp;

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 2240v in the US is 2 legs of a single phase The 2 legs come off the transformer and have a center tap (the neutral) each leg to neutral is 1v or 240 leg to leg If it were part of a multi phase phase system the leg to leg value would not be the same as adding each leg to neutral voltage – Ed Beal May 15 '18 at 16582 volts, 3 phase If you have 2 volts and 3 phase power available, the kiln will come with a 3wire powerblock for the 3 hot wires that give the 3 phase Between each hot wire, 2 volts can be measured There is no need for a neutral wire to come to the kiln in this case, just an earth ground wire in addition to the 3 hot wires The voltage of 277 volts is derived from the the phase voltage of 480 divided by the square root of 3 (for three phase) 480 / 173 = 277 volts For phase voltage of 460 the coil voltage

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 240V 3 Phase Open Delta (3P4W) In the US, 240V Power is provided to small buildings with large loads as 240V 3 Phase Open Delta It's like 1 / 240V but also provides 240V 3 Phase for large loads (Machinery, etc) It's often called "Wild Leg" of "High Leg" Delta because one leg (Phase B) is different high leg delta 230v / 3 phase / 4 wire service looks like a triangle, with three windings connected end to end on the secondary of the utility transformer that'll get you 230v / 3 phase / 3 wire the neutral wire is attached to the center point of one of those three windings i mentioned above, and grounded It depends on what kind of a three phase service you have If you have a stinger leg (8 to ground) it is a delta configuration Typically, a delta configuration has two legs which are 1v to ground and one leg (the stinger) which is 8v to ground There would be 240v between any of the three legs

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 225 2 is a nominal voltage So, also, are 230 and 240 The nominal voltage in North America has not been 2 since before WWII The nominal voltage after WWII (about 1947, to be precise) was 234 The nominal voltage in recent times has been 240 I suspect the vendor was referring to "2 volt class", and not to 2 volts, per se3Phase, 3Wire 8 V Delta (No neutral) – 8 US 3D240 3Phase, 3Wire 230 V Delta (No neutral) – 230 Norway 3D240 3Phase, 3Wire 400 V Delta (No neutral) – 400 EU, Others 3D400 3Phase, 3Wire 480 V Delta (No neutral) – 480 US 3D480 3Phase, 3Wire 600 V Delta (No neutral) – 600 US, Canada none 1 3Phase, 4Wire 8Y/1 V 1 8 US 3Y8, 3D240 3Phase, 4Wire 400Y/230 V Higher operating temperature will result in a shorter life expectancy Even though the system voltage of 3 phase 8 is within the 10% rating of the three phase 230 v motor, the 8 is allowed to vary to 10% or 187 volts and the motor will not work at that level

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Basically, 1 wire would be a higher voltage than 1, most commonly a single 8 leg that I've seen This would be one way to get 8 with only one phase As for 3phase 2, it's again all about how the transformer is tapped I have a mixture of 3phase 480 and 3phase For Wye systems, the single phase voltage is the 'primary" voltage divided by the square root of 3 (173) Any two of the power legs create a "rated" voltage (8 or 480) in single phase as well, or all three legs connected yield rated voltage (8 or 480) in three phase The NEUTRAL connection is designed to "drain away" any imbalanced flow

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