RMS Voltage using Load Current (Single-Phase Three-Wire OS) Solution

STEP 0: Pre-Calculation Summary
Formula Used
Root Mean Square Voltage = Power Transmitted/(Current Overhead AC*cos(Phase Difference))
Vrms = P/(I*cos(Φ))
This formula uses 1 Functions, 4 Variables
Functions Used
cos - Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle., cos(Angle)
Variables Used
Root Mean Square Voltage - (Measured in Volt) - Root Mean Square Voltage is the square root of the time average of the voltage squared.
Power Transmitted - (Measured in Watt) - Power Transmitted is defined as the product of current and voltage phasor in a overhead ac line at the receiving end.
Current Overhead AC - (Measured in Ampere) - Current Overhead AC is defined as the current flowing through the overhead ac supply wire.
Phase Difference - (Measured in Radian) - Phase Difference is defined as the difference between the phasor of apparent and real power (in degrees) or between voltage and current in an ac circuit.
STEP 1: Convert Input(s) to Base Unit
Power Transmitted: 890 Watt --> 890 Watt No Conversion Required
Current Overhead AC: 6.9 Ampere --> 6.9 Ampere No Conversion Required
Phase Difference: 30 Degree --> 0.5235987755982 Radian (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Vrms = P/(I*cos(Φ)) --> 890/(6.9*cos(0.5235987755982))
Evaluating ... ...
Vrms = 148.939634660512
STEP 3: Convert Result to Output's Unit
148.939634660512 Volt --> No Conversion Required
FINAL ANSWER
148.939634660512 148.9396 Volt <-- Root Mean Square Voltage
(Calculation completed in 00.004 seconds)

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Vishwakarma Government Engineering College (VGEC), Ahmedabad
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Current and Voltage Calculators

Maximum Voltage using Area of X-Section(Single-Phase Three-Wire OS)
​ LaTeX ​ Go Maximum Voltage Overhead AC = sqrt((Length of Overhead AC Wire*Resistivity*(Power Transmitted^2))/(Area of Overhead AC Wire*Line Losses*((cos(Phase Difference))^2)))
RMS Voltage using Area of X-Section(Single-Phase Three-Wire OS)
​ LaTeX ​ Go Root Mean Square Voltage = sqrt((2*Length of Overhead AC Wire*Resistivity*(Power Transmitted^2))/(Area of Overhead AC Wire*Line Losses*((cos(Phase Difference))^2)))
Load Current(Single-Phase Three-Wire OS)
​ LaTeX ​ Go Current Overhead AC = Power Transmitted/(Maximum Voltage Overhead AC*cos(Phase Difference)*sqrt(2))
Maximum Voltage(Single-Phase Three-Wire OS)
​ LaTeX ​ Go Maximum Voltage Overhead AC = (2)*Voltage Overhead AC

RMS Voltage using Load Current (Single-Phase Three-Wire OS) Formula

​LaTeX ​Go
Root Mean Square Voltage = Power Transmitted/(Current Overhead AC*cos(Phase Difference))
Vrms = P/(I*cos(Φ))

What is the value of maximum voltage and volume of conductor material in 1-phase 3-wire system?

The volume of conductor material required in this system is 5/8cos2θ times that of 2-wire d.c.system with the one conductor earthed. The maximum voltage between conductors is 2vm so that r.m.s. value of voltage between them is √2/vm.

How to Calculate RMS Voltage using Load Current (Single-Phase Three-Wire OS)?

RMS Voltage using Load Current (Single-Phase Three-Wire OS) calculator uses Root Mean Square Voltage = Power Transmitted/(Current Overhead AC*cos(Phase Difference)) to calculate the Root Mean Square Voltage, The RMS Voltage using Load Current (single-Phase three-Wire OS) formula is defined as the square root of the time average of the voltage squared. Root Mean Square Voltage is denoted by Vrms symbol.

How to calculate RMS Voltage using Load Current (Single-Phase Three-Wire OS) using this online calculator? To use this online calculator for RMS Voltage using Load Current (Single-Phase Three-Wire OS), enter Power Transmitted (P), Current Overhead AC (I) & Phase Difference (Φ) and hit the calculate button. Here is how the RMS Voltage using Load Current (Single-Phase Three-Wire OS) calculation can be explained with given input values -> 148.9396 = 890/(6.9*cos(0.5235987755982)).

FAQ

What is RMS Voltage using Load Current (Single-Phase Three-Wire OS)?
The RMS Voltage using Load Current (single-Phase three-Wire OS) formula is defined as the square root of the time average of the voltage squared and is represented as Vrms = P/(I*cos(Φ)) or Root Mean Square Voltage = Power Transmitted/(Current Overhead AC*cos(Phase Difference)). Power Transmitted is defined as the product of current and voltage phasor in a overhead ac line at the receiving end, Current Overhead AC is defined as the current flowing through the overhead ac supply wire & Phase Difference is defined as the difference between the phasor of apparent and real power (in degrees) or between voltage and current in an ac circuit.
How to calculate RMS Voltage using Load Current (Single-Phase Three-Wire OS)?
The RMS Voltage using Load Current (single-Phase three-Wire OS) formula is defined as the square root of the time average of the voltage squared is calculated using Root Mean Square Voltage = Power Transmitted/(Current Overhead AC*cos(Phase Difference)). To calculate RMS Voltage using Load Current (Single-Phase Three-Wire OS), you need Power Transmitted (P), Current Overhead AC (I) & Phase Difference (Φ). With our tool, you need to enter the respective value for Power Transmitted, Current Overhead AC & Phase Difference and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate Root Mean Square Voltage?
In this formula, Root Mean Square Voltage uses Power Transmitted, Current Overhead AC & Phase Difference. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • Root Mean Square Voltage = sqrt((2*Length of Overhead AC Wire*Resistivity*(Power Transmitted^2))/(Area of Overhead AC Wire*Line Losses*((cos(Phase Difference))^2)))
  • Root Mean Square Voltage = (Power Transmitted/cos(Phase Difference))*sqrt(Resistivity*Length of Overhead AC Wire/(Area of Overhead AC Wire*Line Losses))
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