⚡ 18-Pulse Drives (Fork Autotransformer 20° Shift, THDi <5.0% IEEE 519 Compliance)

18-Pulse Phase-Shifting Autotransformer Calculator

Size 18-pulse phase-shifting autotransformers (Mirus / Rockwell / Siemens) with symmetrical $+20^circ, 0^circ, -20^circ$ fork windings: feed triple 6-pulse diode bridge rectifiers canceling 5th, 7th, 11th, and 13th harmonic currents, reduce total harmonic distortion ($THD_i < 5.0%$) meeting IEEE 519-2022, and clean power yields.

1. Project & Operating Inputs

VFD Process Motor Load (HP e.g. 400 HP Data Center Chiller Compressor)

System Input Voltage (Volts e.g. 480V 3-Phase Main)

Customer Bid Price for Supplied 18-Pulse VFD Package ($)

Phase-Shifting Autotransformer, Triple 6-Pulse Bridge Inverter Panel ($)

2. Financial Breakdown & Yield

18-PULSE AUTOTRANSFORMERS

Turnkey 18-Pulse Clean Power Drive Package Profit

Industrial Harmonic Mitigation Equipment Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost