Description
Subtract a supplied neutral potential from a phase potential.
Electrical scalar calculations depend on terminal references, polarity flags, current/turns ratios and reactance conventions. Reversing one wattmeter input differs from reversing both, while a voltage difference is not automatically an RMS or phasor quantity. Supplied ideal-component relations do not establish actual wiring or safe electrical operation.
Subtract a supplied neutral potential from a phase potential.
When to use this tool
Use Neutral Star Point Single Phase Offset when you already have neutralPotentialVolts, phasePotentialVolts and need to subtract a supplied neutral potential from a phase potential.
How to use the tool and how it works
- Enter neutralPotentialVolts, phasePotentialVolts. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read signedGap. Use the output convention below.
Return phasePotentialVolts-neutralPotentialVolts.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| neutralPotentialVolts | Neutral Potential Volts | Required. Finite number. |
| phasePotentialVolts | Phase Potential Volts | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| signedGap | Phase potential minus neutral potential as scalar volts, not automatically an AC phasor or RMS magnitude. | Required. Finite number. |
{
"input": {
"neutralPotentialVolts": 12,
"phasePotentialVolts": 17
},
"output": {
"signedGap": 5
}
}Limitations and assumptions
- Inputs must be compatible scalar potentials at the same reference and instant. No AC phasor, RMS value, neutral displacement network or safe voltage is calculated.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use verified circuit and instrument information with a complete model of the actual operating conditions. Include nonideal behavior, ratings and required electrical assessment when local sign arithmetic or ideal turns/capacitance terms cannot establish performance or safety.
References
Similar or alternative tools
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