My work L2 is 208vac, which is two legs off 208 3ph and has worked fine for over 3 years.
Curious: bi-phase vs. 2-phase charging?
Does anyone happen to know if 208 VAC 2-phase charging is supported on the Volt, rather than 240 VAC bi-phase? Just curious if this is specified either on the Volt, or perhaps with the J1772 standard.
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A commercial building has a WYE transformer for it's 120vac 1ph power. It has 4 wires going out:
L1 - Hot 120v
L2 - Hot 120v
L3 - Hot 120v
White - Neutral for 120v
Any two of the L1, L2, or L3 lines when hooked to power leads makes 208vac, not 120v. Why? They are 120° separation. Only when they run a 3 phase motor do they kick out 240v.
You do not use the Neutral on a 208 circuit. You would use a second Hot instead.
L1 - Hot 120v
L2 - Hot 120v
L3 - Hot 120v
White - Neutral for 120v
Any two of the L1, L2, or L3 lines when hooked to power leads makes 208vac, not 120v. Why? They are 120° separation. Only when they run a 3 phase motor do they kick out 240v.
You do not use the Neutral on a 208 circuit. You would use a second Hot instead.
1 - 2 of 6 Posts
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