Description
Preserve magnitude and return phaseDegrees+180 wrapped modulo 360.
Sinusoidal electrical calculations need a common frequency, phase reference and RMS or peak convention. Phasor sums, complex power and composite RMS describe different operations; a sign label alone does not establish a physical connection or waveform.
Preserve magnitude and return phaseDegrees+180 wrapped modulo 360.
When to use this tool
Use Phasor Phase Sign Reference Inversion when checking a stated phasor, power or RMS convention.
How to use the tool and how it works
- Enter magnitude, phaseDegrees. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read magnitude, phaseDegrees. Use the output convention below.
Require nonnegative magnitude. Preserve magnitude and return phaseDegrees+180 wrapped modulo 360.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| magnitude | Magnitude | Required. Finite number; minimum 0. |
| phaseDegrees | Wrapped phase angle in degrees under the supplied reference convention. | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| magnitude | Magnitude | Required. Finite number. |
| phaseDegrees | Wrapped phase angle in degrees under the supplied reference convention. | Required. Finite number. |
{
"input": {
"magnitude": 5,
"phaseDegrees": 30
},
"output": {
"magnitude": 5,
"phaseDegrees": 210
}
}Limitations and assumptions
- This models reference polarity reversal, not complex conjugation. A zero-magnitude phasor still receives a phase label even though physical phase then lacks meaning.
- 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 compatible measured waveforms and a complete circuit or harmonic model when signals are distorted, references differ or practical limits matter.
References
Similar or alternative tools
- Phasor Single Frequency Time Origin
Return phaseRadians as phaseRadians+angularFrequency*originShift wrapped modulo 2*pi into [0,2*pi).
- Electricity: Phasor Leading Lagging Label
Wrap currentPhaseDegrees-voltagePhaseDegrees into [-180,180).