Description
secondaryVoltage = primaryVoltage*secondaryTurns/primaryTurns, with positive sign when sameDottedReference and negative sign otherwise.
Magnetic coupling uses explicit winding, current and voltage references. Turns-square reflection and mutual-energy signs are ideal model conventions; they do not establish actual coupling, saturation or a safe winding connection.
secondaryVoltage = primaryVoltage*secondaryTurns/primaryTurns, with positive sign when sameDottedReference and negative sign otherwise.
When to use this tool
Use Electricity: Transformer Turns Polarity Sign when checking one supplied turns-ratio, dot-reference or mutual-coupling term.
How to use the tool and how it works
- Enter primaryVoltage, secondaryTurns, primaryTurns, sameDottedReference. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read result. Expand result to inspect the returned fields.
Require whole primaryTurns and secondaryTurns in [1,1000000]. secondaryVoltage = primaryVoltage*secondaryTurns/primaryTurns, with positive sign when sameDottedReference and negative sign otherwise.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| primaryVoltage | Primary Voltage | Required. Finite number. |
| secondaryTurns | Secondary Turns | Required. Safe integer. |
| primaryTurns | Primary Turns | Required. Safe integer. |
| sameDottedReference | Same Dotted Reference | Required. Boolean. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| result | Object containing the named calculated members below. | Required. Object. |
| result.secondaryVoltage | Secondary Voltage | Calculated result member: number. |
{
"input": {
"primaryVoltage": 10,
"secondaryTurns": 2,
"primaryTurns": 4,
"sameDottedReference": false
},
"output": {
"result": {
"secondaryVoltage": -5
}
}
}Limitations and assumptions
- This is an ideal turns ratio with an explicit dot-reference sign. It does not model power loading, winding losses, insulation limits or safe transformer connection.
- Outputs are nested inside result. 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 the full coupled circuit and component data for physical realizability, losses, transients and operating constraints.
References
Similar or alternative tools
- Transformer Turns Ratio Reflected Capacitance
reflected = capacitance/ratio², where ratio is target-side turns divided by source-side turns for the impedance reflection.
- Transformer Turns Ratio Reflected Inductance
reflected = inductance*ratio², where ratio is target-side turns divided by source-side turns for this reflection convention.