Fraction of Full Scale Current for Shunt Type Ohmmeter Calculator

✖Unknown Shunt Resistance is the value of the unknown resistance connected for measurement.ⓘ Unknown Shunt Resistance [R_x1]			+10% -10%
✖Resistance of Shunt Meter is an instrument resistance.ⓘ Resistance of Shunt Meter [R_m1]			+10% -10%

✖Fraction Value is the fraction at full scale for an instrument.ⓘ Fraction of Full Scale Current for Shunt Type Ohmmeter [S]

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Formula

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Fraction of Full Scale Current for Shunt Type Ohmmeter

Formula

`"S" = "R"_{"x1"}/("R"_{"x1"}+"R"_{"m1"})`

Example

`"0.96"="30Ω"/("30Ω"+"1.25Ω")`

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Fraction of Full Scale Current for Shunt Type Ohmmeter Solution

STEP 0: Pre-Calculation Summary

Formula Used

Fraction Value = Unknown Shunt Resistance/(Unknown Shunt Resistance+Resistance of Shunt Meter)
S = R_x1/(R_x1+R_m1)
This formula uses 3 Variables

Variables Used

Fraction Value - Fraction Value is the fraction at full scale for an instrument.
Unknown Shunt Resistance - (Measured in Ohm) - Unknown Shunt Resistance is the value of the unknown resistance connected for measurement.
Resistance of Shunt Meter - (Measured in Ohm) - Resistance of Shunt Meter is an instrument resistance.

STEP 1: Convert Input(s) to Base Unit

Unknown Shunt Resistance: 30 Ohm --> 30 Ohm No Conversion Required
Resistance of Shunt Meter: 1.25 Ohm --> 1.25 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

S = R_x1/(R_x1+R_m1) --> 30/(30+1.25)

Evaluating ... ...

S = 0.96

STEP 3: Convert Result to Output's Unit

0.96 --> No Conversion Required

FINAL ANSWER

0.96 <-- Fraction Value

(Calculation completed in 00.004 seconds)

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Created by Nikita Suryawanshi

Vellore Institute of Technology (VIT), Vellore

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Shiv Nadar University (SNU), Greater Noida

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< 3 Shunt Type Calculators

Meter Current for Shunt Type Ohmmeter

Go Meter Current = (Voltage Source Shunt*Unknown Shunt Resistance)/(Shunt Resistance*Resistance of Shunt Meter+Unknown Shunt Resistance*Shunt Resistance+Unknown Shunt Resistance*Resistance of Shunt Meter)

Half Scale Resistance for Shunt Type Ohmmeter

Go Unknown Shunt Resistance = (Shunt Resistance*Resistance of Shunt Meter)/(Shunt Resistance+Resistance of Shunt Meter)

Fraction of Full Scale Current for Shunt Type Ohmmeter

Go Fraction Value = Unknown Shunt Resistance/(Unknown Shunt Resistance+Resistance of Shunt Meter)

Fraction of Full Scale Current for Shunt Type Ohmmeter Formula

Fraction Value = Unknown Shunt Resistance/(Unknown Shunt Resistance+Resistance of Shunt Meter)
S = R_x1/(R_x1+R_m1)

How to mark infinity reading?

To mark infinity reading on the scale, the terminals are opened and R_x is made infinite. Now, maximum current is flowing in the circuit and R₂ is adjusted till D'Arsonal movement indicates full-scale current.

How to Calculate Fraction of Full Scale Current for Shunt Type Ohmmeter?

Fraction of Full Scale Current for Shunt Type Ohmmeter calculator uses Fraction Value = Unknown Shunt Resistance/(Unknown Shunt Resistance+Resistance of Shunt Meter) to calculate the Fraction Value, Fraction of Full Scale Current for Shunt Type Ohmmeter is the ratio of the meter current and full-scale current at a certain unkown resistance. Fraction Value is denoted by S symbol.

How to calculate Fraction of Full Scale Current for Shunt Type Ohmmeter using this online calculator? To use this online calculator for Fraction of Full Scale Current for Shunt Type Ohmmeter, enter Unknown Shunt Resistance (R_x1) & Resistance of Shunt Meter (R_m1) and hit the calculate button. Here is how the Fraction of Full Scale Current for Shunt Type Ohmmeter calculation can be explained with given input values -> 0.954128 = 30/(30+1.25).

FAQ

What is Fraction of Full Scale Current for Shunt Type Ohmmeter?

Fraction of Full Scale Current for Shunt Type Ohmmeter is the ratio of the meter current and full-scale current at a certain unkown resistance and is represented as S = R_x1/(R_x1+R_m1) or Fraction Value = Unknown Shunt Resistance/(Unknown Shunt Resistance+Resistance of Shunt Meter). Unknown Shunt Resistance is the value of the unknown resistance connected for measurement & Resistance of Shunt Meter is an instrument resistance.

How to calculate Fraction of Full Scale Current for Shunt Type Ohmmeter?

Fraction of Full Scale Current for Shunt Type Ohmmeter is the ratio of the meter current and full-scale current at a certain unkown resistance is calculated using Fraction Value = Unknown Shunt Resistance/(Unknown Shunt Resistance+Resistance of Shunt Meter). To calculate Fraction of Full Scale Current for Shunt Type Ohmmeter, you need Unknown Shunt Resistance (R_x1) & Resistance of Shunt Meter (R_m1). With our tool, you need to enter the respective value for Unknown Shunt Resistance & Resistance of Shunt Meter and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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