SlipScope: Motor Torque Curve

SlipScope is a comprehensive calculation and visualization tool designed for electrical engineers, technicians, students, and motor maintenance professionals analyzing three-phase induction motor performance. Built upon the per-phase equivalent circuit model, SlipScope delivers accurate steady-state profiling, torque-speed curve generation, and performance auditing for squirrel-cage and wound-rotor induction machines. KEY FEATURES: 1. MOTOR SETUP & CIRCUIT PARAMETERS • Enter nameplate and equivalent circuit parameter data with precision. • Support for both Star (Y) and Delta (Δ) stator winding configurations. • Configure line voltage, supply frequency, pole count, stator resistance (R1), stator reactance (X1), rotor resistance (R2'), rotor reactance (X2'), and magnetising reactance (Xm). • Define rated shaft output (kW) and fixed losses (friction, windage, core loss). 2. TORQUE–SPEED & CURRENT CHARTS • Plot continuous torque-speed and current-speed curves across the entire slip range (from locked rotor to synchronous speed). • Instantly switch chart views between electromagnetic torque and stator line current. • Identify critical performance indices including starting torque, breakdown (pull-out) torque, full-load torque, and inrush starting current. • Interactive point marker inspection along the performance curve. 3. PERFORMANCE & LOSS AUDIT • Evaluate full-load operating parameters with comprehensive energy balance breakdowns. • Calculate stator copper losses, rotor copper losses, air-gap power, and mechanical power output. • Monitor efficiency percentage and operating power factor. • Assess thermal loading and starting mechanical stress. 4. MOTOR LIBRARY & BUILT-IN PRESETS • Store and organize multiple motor profiles in your motor database. • Quick-start with standard IEC and NEMA industry presets ranging from 2.2 kW to 30 HP machines, including wound-rotor and high-slip models. 5. DUAL MOTOR COMPARISON • Overlay performance curves of two induction machines on a single graph. • Directly compare starting capability, peak torque, and current demand between different winding or rotor designs. 6. FORMULA REFERENCE • Access a complete reference library of induction motor equations. • Includes per-phase impedance math, power balance formulas, slip relations, and star-delta conversions for study or job-site verification. TARGET AUDIENCE: • Electrical Engineering Students & Educators • Industrial Maintenance & Reliability Engineers • Motor Repair & Rewinding Technicians • Drive System Designers & Application Engineers Streamline your motor analysis and machine evaluations with SlipScope today!