// multi-utility computation suite · offline · instant · precise
┌──────────────────────────┐
│ [c] calcalyst_ │
│ computation suite │
└──────────────────────────┘
// select a module to initialize
/ search↵ open firstesc close
// adsenseEMPTY_LEADER_SLOT728×90
// keyboard shortcuts
/focus search
Escclear search · close calc
Enteropen first result
↑↓navigate list
?toggle this panel
// adsenseMOBILE_ANCHOR_SLOT320×50
// keyboard_shortcuts
/focus search
↑↓navigate module list
Enter
open first result from search
open highlighted
compute when module is open
compute when focused in a field
Escclose module · clear selection
⌫
eng.inverter-THD-output Calculator
Calculates inverter output Total Harmonic Distortion (THD) from harmonic amplitude measurements and checks against IEEE 519 limits. THD above 5% (IEEE 519 limit) causes motor heating, transformer losses, and interference with electronic equipment.
Inputs
V1 V
Electric potential difference (V). Drives current through a circuit. Household: 120 V (US) or 230 V (EU/UK).
V3 V
Reference formula or conversion factor shown for context.
V5 V
Reference formula or conversion factor shown for context.
V7 V
Reference formula or conversion factor shown for context.
V11 V
Reference formula or conversion factor shown for context.
Results
THD (total harmonic distortion)
The combined total across all inputs and components.
harmonic voltage Vh (V)
Electric potential difference between the two terminals (V). In AC systems, quoted as RMS — 230 V mains has a peak of ~325 V.
total RMS voltage (V)
Electric potential difference between the two terminals (V). In AC systems, quoted as RMS — 230 V mains has a peak of ~325 V.
THD = √(ΣVₙ²)/V₁
Reference formula or conversion factor shown for context.
grid code limit
Reference formula or conversion factor shown for context.
power factor distortion
A dimensionless multiplier applied in the calculation.