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What is the voltage of line to ground?
Calculate the line to ground voltage using the formula: V (line to ground) = (KVA x 1000)/(I x 1.73). Continuing with the example: V (line to ground) = (20 x 1000)/(30 x 1.73) = 20000/51.9 = 385.4 volts.
What does line to line voltage mean?
The line to line voltage is the voltage between any two of the three phase wires ABC, e.g. Vab. With delta, there is no neutral wire available and so the voltage between any two of the three available phase wires is the line voltage by default.
How do you obtain line voltage?
Line voltage is V(L-L) in volts equal to root 3 times of the phase voltage V(L-N) in volts. Example: What is the line voltage of the delta connected system whose phase voltage is 240 Volts. V(L-L) = 240 x 1.732 = 415 Volts.
What should the line to ground voltage be?
line-to-ground: 120 V However, there are two receptacles which have a different line-to-ground reading: 60 V instead of the expected 120 V. For both, line-to-line is also 240 V; only the line-to-ground voltage is different. What possible connection/grounding error could have caused this?
What causes neutral ground at a power receptacle?
Neutral ground is a voltage drop (also called IR drop) caused by load current flowing through the impedance of the white wire. Let’s say you measure 1.5 V. Hot ground can be thought of as the source of voltage available at the receptacle. You read 120.0 V.
What causes a voltage drop along a neutral wire?
When the wire length from the breaker panel to the service outlet is long and the connected equipment is pulling a large amount of current, the resistance in the wire will cause a voltage drop along the NEUTRAL wire. When this NEUTRAL voltage is measured with reference to the GROUND, this is referred to as an N-G Voltage.
What’s the difference between line to ground and 240 V?
line-to-line: 240 V line-to-ground: 120 V However, there are two receptacles which have a different line-to-ground reading: 60 V instead of the expected 120 V. For both, line-to-line is also 240 V; only the line-to-ground voltage is different.