Q. For a servo voltage stabilizer, If the measured voltages are 420, 430 and 440V, the average is 430V and the deviation is 10V. What will be the percentage unbalance?

A
1.3%
B
2.3%
C
2.2%
D
1.8%
Solution:

The Percentage Unbalance is given by (10V * 100 / 430V) = 2.3%

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