Enter the voltage across the string (volts), the number of discs, and the voltage across the disc nearest to the conductor (volts) into the calculator to determine the String Efficiency.
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String Efficiency Formula
The following formula is used to calculate the String Efficiency.
SE = Vs / (#D*VD)
- Where SE is the String Efficiency
- Vs is the voltage across the string (volts)
- #D is the number of discs
- VD is the voltage across the disc nearest to the conductor (volts)
How to Calculate String Efficiency?
The following example problems outline how to calculate String Efficiency.
Example Problem #1
- First, determine the voltage across the string (volts). In this example, the voltage across the string (volts) is determined to be 59 .
- Next, determine the number of discs. For this problem, the number of discs is measured to be 59 .
- Next, determine the voltage across the disc nearest to the conductor (volts). In this case, the voltage across the disc nearest to the conductor (volts) is found to be 4.
- Finally, calculate the String Efficiency using the formula above:
SE = Vs / (#D*VD)
Inserting the values from above and solving the equation yields:
SE = 59 / (59*4) = .25
Example Problem #2
Using the same method as above, determine the variables required by the equation. For this example problem, these are:
voltage across the string (volts) = 934
number of discs = 49
voltage across the disc nearest to the conductor (volts) = 30
Enter these given values into the calculator or above yields:
SE = 934 / (49*30) = .63
