Power Engineering

Grid Voltage Sag Susceptibility Index (GVSSI) calculator

Grid Voltage Sag Susceptibility Index (GVSSI) engineering calculator.

Quick Answer

Calculate Grid Voltage Sag Susceptibility Index (GVSSI)

Calculator

Voltage Sag Susceptibility Index (dimensionless)
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Result Interpretation

Grid Voltage Sag Susceptibility Index (GVSSI) calculator computes Voltage Sag Susceptibility Index in dimensionless using the defined engineering formula and the input values provided. Voltage Sag Susceptibility Index is expressed in dimensionless. No universal acceptance threshold is defined by this calculator.

Worked Example

Verified calculation

Given:

  • Minimum Short-Circuit Apparent Power at PCC = 200000000
  • Maximum Facility Demand Apparent Power = 4000000

Expected Result:

  • Voltage Sag Susceptibility Index = 50

Engineering Interpretation:

Under the given input conditions, the calculated result is: Voltage Sag Susceptibility Index = 50 dimensionless.

The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.

Formula / Method

voltage sag susceptibility index = minimum short-circuit apparent power at pcc / maximum facility demand apparent power

Formula family: formula_power_grid_voltage_sag_susceptibility_index_calculator

Variables

SymbolLabelRoleDescription
S_sc_min Minimum Short-Circuit Apparent Power at PCC INPUT Minimum Short-Circuit Apparent Power at PCC
S_demand_max Maximum Facility Demand Apparent Power INPUT Maximum Facility Demand Apparent Power
voltage_sag_susceptibility_index Voltage Sag Susceptibility Index OUTPUT Voltage Sag Susceptibility Index

Calculation Steps

  1. Enter the minimum short-circuit apparent power at pcc in VA.
  2. Enter the maximum facility demand apparent power in VA.
  3. Step 1: Compute voltage sag susceptibility index.
  4. Read the voltage sag susceptibility index (dimensionless) from the results.

Engineering Summary

Calculate Grid Voltage Sag Susceptibility Index (GVSSI)

Frequently Asked Questions

What does this calculator calculate?

The Grid Voltage Sag Susceptibility Index (GVSSI) calculator estimates Voltage Sag Susceptibility Index based on the input parameters you provide

Why is minimum short-circuit apparent power at pcc important in this calculation?

minimum short-circuit apparent power at pcc is directly proportional to voltage sag susceptibility index. When you enter minimum short-circuit apparent power at pcc in VA, the calculator uses it in the engineering formula to compute the output

How should I interpret the result voltage sag susceptibility index?

The calculator outputs voltage sag susceptibility index in dimensionless. 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: Minimum Short-Circuit Apparent Power at PCC (VA), Maximum Facility Demand Apparent Power (VA). 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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