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Cfesa Electrical Chapter 3, Single Phase (100% Correct.)

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Is there a negative and positive line in ac power supplies? - ANSWERNo, all ac lines will change between positive and negative. What is the voltage between a hot and neutral in a 230v system? - ANSWER108v What is the voltage between two hot lines in a 230 volt system? - ANSWER230v What is the voltage difference between two hot lines in a 208 volt system? - ANSWER208v What is the voltage between a hot and neutral in a 208v system? - ANSWER120v What is the advantage of using higher voltage? - ANSWERLess amp draw for the same wattage What is the acceptable maximum voltage difference between the name plate voltage and

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CFESA ELECTRICAL CHAPTER 3,
SINGLE PHASE (100% CORRECT.)
Is there a negative and positive line in ac power supplies? - ANSWERNo, all ac lines
will change between positive and negative.
What is the voltage between a hot and neutral in a 230v system? - ANSWER108v
What is the voltage between two hot lines in a 230 volt system? - ANSWER230v

What is the voltage difference between two hot lines in a 208 volt system? -
ANSWER208v

What is the voltage between a hot and neutral in a 208v system? - ANSWER120v
What is the advantage of using higher voltage? - ANSWERLess amp draw for the same
wattage

What is the acceptable maximum voltage difference between the name plate voltage
and the supplied voltage? - ANSWER+/- 10%

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  • is there a negative and positive line in ac power

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