Engineering and Maintenance
Electrical Motor Installation and Protection
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Electrical Motor Installation and Protection Course
Introduction:
Course Objectives:
- Undertake a detailed review of the different types of electric motors available
- Define motor if the class or not as per nameplate codes
- Reading Motors Nameplates and understand all items
- Explosion-proof motors
- Area classification as per ATEX standard
- Learn the different starting and control methods used
- Understand the requirements for electric motors in hazardous areas
- Understand the types of motor protection required for different motor types
- Understand the terms “Intelligent Motor Control” and ‘Motor Manager”
- How they are used to control and automate many motor control functions
- Learn about comprehensive electric motor maintenance programmers
Who Should Attend?
This training course is designed to provide a practical and detailed insight for personnel who are directly involved in the design, selection, installation, operation, and maintenance of electric motors; professionals and semi-professionals who have an electrical background such as project engineers and electrical engineers, and technicians.
Course Outlines:
Fundamentals of Electric Motors
- Introduction to Electrical Motors, Basic Theory, and Operation
- Types of Electric Motors
- DC
- AC Synchronous
- AC Asynchronous
- Other
- Commonly used Electric Motors in Industry
- Cast or Rotor
- Wound Rotor and Slipring
- Speed torque curves and motor starting considerations
- High Voltage Electric Motors
- Motor losses
- Motor selections based on load
- Special Motors (Mill Drives, Gas Turbine Helper Motors, etc.)
Electric Motor Control and Hazardous Area Requirements
- Motor Control Methods and Techniques
- DOL
- Reduced Voltage Start by different techniques
- Variable Speed Drives
- PLC controlled
- Area classification as per ATEX standard
- EXd and EX ed Motors
- Motors Classified for use in Hazardous Areas
- Gland installation and cabling for EX motors
Electric Motor Bearings, Efficiency, and Harmonics
- Motor Bearings – Design and Types, Plain, Roller and Sleeve, Lubrication.
- THD (total harmonic distortion measurements)
- Explain K factor
- Power quality improvement to increase efficiency
- Power factor correction different methods
- Energy Efficiency of Motors
- Harmonics in Motors from VSDs or other sources
Electric Motor Protection
- Motor Protection Requirements – General
- ANSI code for motor protection
- Using multifunction protection relay (practical session using the simulator)
- Motor Stall, Acceleration and Running Thermal Limit Curves
- Motor Thermal Capacity and How it is Evaluated in Motor Protection Devices
- Motor Managers and Intelligent Motor Control
Electric Motor Maintenance and Repair
- Preventative Maintenance, Corrective Maintenance, and Maintenance Planning
- On-Line Testing of Motors Using Current Signature Analysis can detect:
- Rotor defects
- Stator Problems
- Bearing Problems
- Air Gap Problems
- Off-line Static testing to evaluate:
- Stator Condition
- Rotor Health
- Air Gap Anomalies
- Power Circuit Faults
- Motor Insulation Health
- Predictive Maintenance using PD , infrared Camera
- Cable selection and voltage drop calculation
- FMEA and RBI
- Repair or Replacement Decisions, Motor Repair