Question 10055 of 731 · Texas Journeyman Electrician Exam

A PV module has an open-circuit voltage (Voc) of 40 volts. Ten modules are connected in series, and the temperature correction factor for the lowest expected ambient temperature is 1.12. What is the maximum PV circuit voltage?

Exactly one answer is correct.

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Correct answer to question 10055

  • C: 448 volts

Explanation

The maximum voltage is the sum of the series-connected Voc values corrected for the lowest expected ambient temperature: 40 V x 10 x 1.12 = 448 V. Dividing by the factor or ignoring it are typical errors.

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