Voltage Dip & Power Quality

Estimate the voltage-sag magnitude and duration caused by a remote short circuit or a load step.

Inputs

Line voltage V

Source short-circuit capacity Sₖ kVA

Cause of the dip —

Fault level at remote point S_fault kVA

Event duration t s

Results

Event Log & Compliance Report

#	Remaining V (%)	Duration (s)	Class	Equipment band	ITIC

Note — Representative model per IEC 61000-4-30 / IEEE 1159 / ITIC (CBEMA) envelope. Verify with the applicable power-quality standard and a certified engineer.