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Course Outline
Intro to MV Equipment and Components
- Transformer options
- Switching options
- Protective devices
- Shielded cable & conductors
National Electrical Code (NEC) - Over 1000 Volts
- Introduction to the NEC
- NEC vs NESC applicability
- Overview of medium voltage (over 1000 volts) requirements
Medium Voltage Cable / Bus Systems
- Outdoor conduit systems and installation options
- Indoor MV cable / conductor options
- NEC installation requirements
- Coordination with other site utilities
- Soil and site condition impacts
- Ampacity sizing and specification
- Electrical stress and cable failures
- Splicing (cable joints) and terminations
- Intro to overhead conductor/pole systems
- Cable testing
Transformers and Generators
- Sizing and redundancy
- Winding configurations
- Short circuit current and Impedance
- Grounding methods
- NEC installation requirements
- Location and building requirements
- Indoor vs outdoor
- EPA consideration
Overview of Switchgear and Switching Options
(NOTE: This course will only give a brief introduction to switchgear for the purpose of system design and installation considerations. For more in-depth instruction on switchgear, see the companion course “Understanding Medium Voltage Switchgear”)
- NEC installation requirements
- Types of construction
- Indoor and outdoor considerations
- Fault interrupting devices
- Equipment ratings
- System locations for metering, CTs, PTs
- Brief intro to system protective relaying & schematics
Lightning / Transient Protection
- System BIL
- Arrester sizing and applications
- TRV and RC-snubbers
- Capacitors
One-Line Development
- MV drawing symbols and legends
- Overview of MV construction drawing packages
- System layout options
- Utility Inter-connections
- Reliability vs cost
- Planning criteria
- System sizing, layout, and routing exercises
Operations
- Switching procedures
- SCADA/automation
- Maintenance programs