Question 1049 of 790 · California General Electrician Exam
On a 240/120-volt three-phase, four-wire delta system with a center-tapped winding, the high leg measures approximately how many volts to the neutral?
Exactly one answer is correct.
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Correct answer to question 1049
- A: 208 volts
Explanation
Two phases measure 120 V to the center-tap neutral, but the third (high or wild) leg measures about 208 V to neutral. It must be identified so it is not used for 120-volt loads.
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