Typical Industrial and Commercial Power System Example:
- Data gathering and input data requirement
- Exposure to load flow analysis to the extent to establish initial conditions for motor starting analysis
- Comparison of induction motor models available: single rotor and double rotor circuits vs. graphical model
- Review of data required to properly model the motor to be started
- Understanding of the motor performance test data including torque slip vs. slip, current vs. slip, hot and cold start thermal limits, etc.
- Importance of inertia, both motor and load, on motor starting
- Discussion of various motor starting methods: delta-wye, autotransformer, capacitor, and soft-start
- Examination and interpretation of PTW study results and potential problem areas in the power system
- Discussion of methods and procedures for completing a typical study
- Overview of motor protection and relationship to motor starting methods
- Discussion of compliance with various standards and requirements
Hands-On Lab - Analysis of a Sample Electrical Distribution System in PTW:
- Interpretation of Equipment datasheets
- Data gathering, data input and system modeling
- Relationship between Load Flow results and Motor Starting study
- Examination of specific motor starting technique being utilized
- Verifying compliance with related codes and standards
- Discussion of study results and methods to improve distribution system
Notes:
Students are responsible for bringing their own laptop computers. SKM will provide a training course package with the latest version of the PTW software two weeks prior to the class for installation with a software key.