small XMFR
small XMFR
(OP)
I want 240 L-N
Can i Ground X4 tie x2 and x3 togather and use X1
wire to the device would be x4=N and x1=L
240V L-N
should work but the connection diagram is not showing it

Can i Ground X4 tie x2 and x3 togather and use X1
wire to the device would be x4=N and x1=L
240V L-N
should work but the connection diagram is not showing it

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RE: small XMFR
RE: small XMFR
xnuke
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RE: small XMFR
But the unanswered question is: can he ground X1 (or X4)? This isn't addressed in the text. Normally, the voltage to ground of a 240 volt wire is 120 volts because it is part of a 120/240 volt circuit with the canter point (X2-X3) grounded. NESC 250.20(B) requires a system to be grounded if the system can be grounded so that the maximum voltage to ground on the ungrounded conductors does not exceed 150 V. It's not clear to me if grounding X1 or X4 is prohibited when there is no conductor connected to X2-X3. I don't think it would be prohibited for a 2-wire circuit. Consider, though, that in a 240 V delta system with one winding mid-point grounded, there is a 208 V to ground high leg that is required to be identified by an orange color by Rule 110.15.
RE: small XMFR
Consider 277/480 Volt lighting panels or in Canada, 347/600 Volt lighting panels.
You have one end of 277 Volt circuits grounded.
You need not ground one end of your circuit but you may if you wish.
I would ground X1.
If you do not ground the circuit the Canadian code requires ground detection equipment.
A jumper to ground is so much cheaper and easier.
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Ohm's law
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It's the LAW!