Industrial Help Desk

Fast Answers to Common Questions

Motors Affect Production Plans and Energy Use

Engineering & Maintenance Tools

• 3 Phase Motor Amps Calculator
• 1 Phase Motor Amps Calculator
• DC Motor Amps Calculator
• 3 Phase Motor Troubleshooting
• 1 Phase Motor Troubleshooting
• AC Drive Troubleshooting
• VFD Start-up Commissioning Basics
• Soft Start Troubleshooting
• Motor Starter Magnetic Contactor Basics
• Motor Starter Magnetic Contactor Troubleshooting
• DC Drive Troubleshooting
• DC Motor Troubleshooting
• Interactive Motor Frame Chart-NEMA & IEC
• 3 Phase Motor Repair Reference
• NEMA DC Motor Shaft/Key Dimensions
• Common Fractions of Inches

Pulley, Sheave & Sprocket Size Speed Formulas

• Find Driver Pulley/Sprocket Size
• Find Driver Pulley/Sprocket RPM Speed
• Find Driven Pulley/Sprocket Size
• Find Driven Pulley/Sprocket RPM Speed
• Belt Tensioning Formula

Energy Efficiency, Power & Load

• Compare EPACT & EISA Efficiency Standards
• Affinity Laws Formulas - Fans, Pumps
• Centrifugal Pump Performance Calculation Formulas
• Centrifugal Fan Performance Calculation Formulas
• 3 Phase Motor Amps Calculator
• 1 Phase Motor Amps Calculator

Contractors & Farmers

Single Phase Motor Types & Windings/Connections
• Shaded Pole Motors
• Permanent Split Capacitor-1 Speed
• Permanent Split Capacitor-Multi-speed
• Capacitor Start-Induction Run Motor
• Capacitor Start-Capacitor Run Motor
• Split Phase Motor
• Series Motor
• Special 3 phase Motor with 1 phase input
• Single Phase Motor Troubleshooting

3 Phase Motor Types & Windings/Connections
• Special Cases, 3 Leads Wye and Delta Basics
• Wye Connected 3 Lead Motor
• Wye Connected 9 Lead Motor, Low Voltage
• Wye Connected 9 Lead Motor, High Voltage
• Delta Connected 3 Lead Motor
• Delta Connected 9 Lead Motor, Low Voltage
• Delta Connected 9 Lead Motor, High Voltage
• 3 Phase Motor Troubleshooting

Motor Enclosure Types
• Open Drip Proof (ODP) Motor
• Totally Enclosed Air Over (TEAO) Motor
• Totally Enclosed Non-Ventilated (TENV) Motor
• Totally Enclosed Fan Cooled (TEFC) Motor
• Hazardous Explosion Proof (EP) Motor

Motor Mounting Types
• Resilient Mount Motor
• Rigid Mount (Foot Mount) Motor
• C Face Mount Motor
• D Flange Mount Motor
• M or N Flange Mount Motor
• Extended Through-bolt Mount Motor

Motor to Machine Mechanics
• Alignment and Vibration Basics
• Coupler Alignment Basics
• Belt Alignment Basics
• Special Problem-Soft Foot Motor Condition

Pumps, Pipe & Pipe Fitting Engineering
• Pump H-Q Curve Basics
• Pump Suction Lift Basics
• Pump Suction Head Basics
• Pipe and Fitting Friction Loss

Master/Follower Motor Controls

• Motor Speed Matching/Following Approaches

DC Motor University

DC Motor Winding Circuit Connections
• Shunt Motor Winding-Single Field Voltage
• Shunt Motor Winding-Dual Field Voltage
• Compound Motor Winding-Single Field Voltage
• Compound Motor Winding-Dual Field Voltage

Common DC Motor Maintenance Concerns
• NEMA DC Motor Shaft Key Dimension Chart
• Interactive Commutation Troubleshooting Tool
• DC Motor Interpole Polarity-The Mother-Daughter Rule

Custom Controls & Project Archives

• PLC Automated Product  Sorting System
• Power Loss Monitoring System
• Research & Development  PLC Machine Control
• Lumber Saw Custom PLC Control Test
• Pilot Coater R & D Process - Tension/Speed Control
• DC Variable Speed Drive - Simple Web Process Control

Suggested Topics: Production & Operations Analysis

• Quantity Discounts & Inventory Value
• Break-even Quantity Analysis-Adjust Sales Price
• Break-even Analysis-Compare 3 Process Alternatives
• Single Item Production Lot Sizing Modeling
• JIT Production Quantity-Required Setup Time
• Aggregate Production Lot Sizing Models
• Cost of Quality
• Service/Production Logistics-Jobs arrive & wait
• Dynamic Manufacturing System Simulation

Services & Disclaimer/Privacy Statement

• Variable Frequency Drive Training
• AC and DC Motor Training
• Disclaimer/Privacy

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