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Answer 1: effective voltage is 0.707 * 115 = 81.3 voltage Answer 2 by xfrmrman: 115 VAC refers to rms voltage or effective voltage. VAC, rms and "effective" are all synonymous terms in this case. When you plug your appliance into 115 VAC, it is 115Vrms. The peak voltage, if the waveform is sinusoidal, will be 1.414 x the 115Vrms or the 115/.707 or ~163 volts. Note that the rms to peak factor is the square root of 2 and .707 is 1/square root of 2. This value was calculated for a sinusoid by manipulating udv - (integral of vu') (known as integration by parts) to find the root-mean squared value for heating. An RMS voltage measured across a resistive component can be translated into the rms (heating) current. The "3" in the expression above most likely indicates three-phase sinusoidal voltages (call them A,B, & C) which are represented as voltage vectors phased 120 degrees apart (draw arrows 120 apart originating at the center of a 360 degree circle. Connect the ends to make 3 triangles that when evenly subdivided will create two 60-30-90 (or 1,2 square root of 3 side length triangles) between phases. Each ray out will be the hypotenuse "2" side of the triangle, two "square root of three" length segments will be phase to phase. Divide everything by 2 to normalize the hypotenuse. This means line to line voltage is square root of three x line to neutral voltage. In the three phase case you can have the 115 VAC as your rms voltage and the same peak 163V measured from A to B, B to C, or C to A). However.... Usually the 115 Vrms or 120 Vrms is a broken out 3 phase line to neutral voltage from wye connected windings. The line to line voltage is 115 x square root of 3 or 200 V. For 120 volts, 120 x square root of 3 = 208V. Hence, we see a lot of 208 volt power in industry. Windings can also be connected start to finish for "Delta," but that's another topic.
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What is called an effective voltage in Alternating current and if you mention 115 V ac 3 phase means peak voltage is 115 or it is an effective voltage?
115 is the RMS voltage. The actual voltage is a sine wave from -167 to +167 relative to ground. RMS stands for root-mean-square, and it a way of saying that 155 Volts of DC would do the same work on the same sized load. There can be up to 3 phases, and they are the sine wave, shifted by a part of the curve. In most houses, there are 2 phases, and the voltage to ground for each is 110 to 120 V RMS. The voltage between the 2 is 230-240VRMS. 3 phase gets very complex. Each phase is 115 to ground or neutral. 3 PHASE 115V AC EACH PHASE IS 120 DEGRES PHASE SHIFTED THE EFFECTIVE VALUE IS .639 X 115 THE PEAK VALUE OF PHASE IS 1.41X RMS VALUE.
How do you reduce Amps in a circuit Specifically Converting a 15amp 115v circuit to a 12amp 115v circuit thus turning 1725w into 1350w?
To reduce the amperage in a circuit from 15 amps to 12 amps while maintaining the same voltage (115V), you can reduce the load on the circuit. This can be achieved by using a smaller wattage device that consumes less power, thereby lowering the current draw. Specifically, replacing the 1725W device with one that consumes 1350W will result in a reduction of current to approximately 12 amps, as calculated using the formula ( I = \frac{P}{V} ). Additionally, ensure that the circuit wiring and components can safely handle the new load.
Why does the volt meter show only 90v on a 115v circuit?
A voltmeter reading of only 90 volts on a 115-volt circuit could indicate several potential issues. It may suggest a loose or corroded connection, causing voltage drop due to increased resistance. Alternatively, it could be due to an overloaded circuit, poor wiring, or a malfunctioning voltage source. Finally, if the voltmeter is not functioning correctly or is improperly calibrated, it may also give an inaccurate reading.
What formula is used in this question What is current in a 460VA pump if connected to 115v ac rms?
S=iv 460=115*i Therefore i = 460/115 i = 4 Amps
How do test if capacitor iffectev?
If were talking about a battery cap for a car stereo, it would be less light dimming and better hits from your woofers. Otherwise you need a voltage meter or something, I have no clue other than my first sentence.
In a 3-phase high voltage star-star connection 140KVA transformer and load phase voltage is 115v and frequency is 400hz what is the total load current?
Maximum load current on a 140KVA, three phase transformer when the output voltage is 115 v phase to phase is: 140kva / sqrt (3) / 115 = 703 Amps. frequency does not matter here.
What voltage should you set your computer in the us?
In the U.S. you should be using 110-115V.
Is 115 v good for home theater?
If you live in an area that uses 115V as the mains supply, then it's absolutely fine. Equipment sold in the area will be designed to operate on that voltage and there is no difference in performance between 115V equipment and 230V equipment.
How many voltage does an air handler use?
residential usually 115v or 230v. Commercial could be 115, 208-230 or 460
What is the voltage of the power source for this model?
The power supply for the Sunpentown WA-1340DH Portable Air Conditioner/Heater Combo is 115V / 60Hz.
What is the voltage on an indoor fan motor for a package ac unit?
The voltage for an indoor fan motor in a package AC unit typically ranges from 115V to 230V, depending on the specific model and design of the unit. Most residential package units use 115V, while some larger or commercial units might operate on 230V. Always consult the unit's specifications or the manufacturer's documentation for accurate voltage information.
How big of an inverter to run a 115v 60hz 3.0 amp device?
To calculate the size of the inverter needed, multiply the device's operating voltage (115V) by its current draw (3.0A) to get the power consumption in watts (115V * 3.0A = 345W). To be safe and accommodate any power surges, choose an inverter with a continuous power output of at least 400-500 watts.
How do you change 115v to 230v?
You can use a voltage converter or transformer to change 115V to 230V. Make sure to select a converter or transformer that is capable of handling the required voltage conversion and power load. It is always best to consult a professional electrician for safe and proper installation.
Can you plug a 115v appliance into a 100v outlet?
Yes, you can plug a 115V appliance into a 100V outlet, but it may not operate efficiently or could potentially be damaged over time due to insufficient voltage. The appliance may not function properly, as it might not receive enough power to run at its intended capacity. It's important to check the appliance's specifications and consider using a voltage converter if necessary.
Can you plug a 115V small American appliance into 240V outlet in Australia?
No, you cannot plug a 115V American appliance directly into a 240V Australian outlet without a voltage converter or transformer. The voltage difference could damage the appliance or cause a safety hazard. It's recommended to use a voltage converter or transformer suitable for the appliance's power requirements.
Is 120v compatible with 115v?
In the United States the common house current is commonly referred to as either 115 volts or 120 volts. The voltage varies due to the distance from the transformer on the pole because electricity loses voltage the further it has to travel.
Why is there 115v on neutral wire in receptacle when 208v circuit is on?
The presence of 115V on the neutral wire in a 208V circuit could indicate that there's a voltage imbalance or a faulty connection in the wiring. In a three-phase system, if one phase is not properly balanced or there is a poor connection, it can cause a voltage reading on the neutral. Additionally, if there is an unintended return path or a ground fault, it may also lead to a voltage reading on the neutral. It's important to investigate this issue as it may pose safety risks or indicate underlying electrical problems.
