1
Advanced Power System Analysis for U.S. Facilities
A U.S.-market workflow for analyzing harmonics, power quality, available fault current, and protection settings as one connected system.
16 min readadvanced
Advanced34 hours3 articles
Transformer Nodes and Substation Review for U.S. Facilities
Review transformer-fed distribution nodes in U.S. facilities, including loading margins, fault behavior, grounding interfaces, and protection turnover.
Updated April 24, 2026
Learning Objectives
- Assess transformer loading, duty, and operating margins with confidence
- Evaluate fault-current implications around transformer locations
- Integrate grounding and bonding choices into transformer-protection planning
- Improve handover quality with cleaner one-line and settings documentation
Prerequisites
Advanced power system studiesElectrical installation sizing and coordination
Course Content
2
Short-Circuit Levels and Selective Coordination in U.S. Installations
A field-ready method to coordinate protective devices, verify interrupting ratings, and control fault impact in NEC-governed systems.
15 min readadvanced
3
Grounding and Bonding Fundamentals for U.S. Electrical Systems
A practical U.S.-market guide to system grounding, equipment bonding, continuity verification, and when grounding-resistance testing actually adds value.
12 min readintermediate
Practice with Calculators
Transformer Calculator
Screen transformer kVA, turns ratio, full-load current, losses, and a basic impedance-based fault-current check.
Short Circuit Calculator
Screen available fault current from transformer impedance, feeder impedance, or known source impedance.
Load Flow Calculator
Screen steady-state bus voltage, regulation, and feeder losses for single-phase and three-phase systems.