Quick Answer
The ev charging station voltage unbalance ratio calculator computes voltage unbalance from the input values you provide.
Calculator
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Find Engineering Solutions →Result Interpretation
EV Charging Station Voltage Unbalance Ratio calculator computes Voltage Unbalance in % using the defined engineering formula and the input values provided. Voltage Unbalance is expressed in %. No universal acceptance threshold is defined by this calculator.
Worked Example
Verified calculation
Given:
- Phase A Voltage = 230
- Phase B Voltage = 230
- Phase C Voltage = 230
Expected Result:
- Voltage Unbalance = 0
Engineering Interpretation:
Under the given input conditions, the calculated result is: Voltage Unbalance = 0 %.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from deterministically validated test cases.
Formula / Method
voltage unbalance = (max(abs(phase a voltage - (phase a voltage + phase b voltage + phase c voltage)/3.0), abs(phase b voltage - (phase a voltage + phase b voltage + phase c voltage)/3.0), abs(phase c voltage - (phase a voltage + phase b voltage + phase c voltage)/3.0)) / ((phase a voltage + phase b voltage + phase c voltage)/3.0)) * 100.0Voltage Unbalance.
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| Va | Phase A Voltage | INPUT | Phase A Voltage |
| Vb | Phase B Voltage | INPUT | Phase B Voltage |
| Vc | Phase C Voltage | INPUT | Phase C Voltage |
| voltage_unbalance | Voltage Unbalance | OUTPUT | Voltage Unbalance |
Calculation Steps
- Enter the phase a voltage in V.
- Enter the phase b voltage in V.
- Enter the phase c voltage in V.
- Step 1: Compute voltage unbalance.
- Read the voltage unbalance (%) from the results.
Frequently Asked Questions
What does this calculator calculate?
The EV Charging Station Voltage Unbalance Ratio calculator estimates Voltage Unbalance based on the input parameters you provide
Why is phase a voltage important in this calculation?
phase a voltage is used directly in the calculation of voltage unbalance. Its effect on the result depends on the complete formula and the values of the other inputs.. When you enter phase a voltage in V, the calculator uses it in the engineering formula to compute the output
How should I interpret the result voltage unbalance?
The calculator outputs voltage unbalance in %. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Phase A Voltage (V), Phase B Voltage (V), Phase C Voltage (V). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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