POWER SYSTEM ANALYSIS

A short-circuit study is performed to verify all equipment in the system is adequately rated for the maximum available fault current. This is to design safer, code-compliant electrical systems, ensuring equipment can withstand and interrupt bolted and arcing faults. All calculations comply with the latest ANSI and IEEE standards.

Time current curves illustrate protective device tripping characteristics, transformer and cable damage thresholds, and motor-starting curves, plotting current against time. This is to provide protective device settings while finding a compromise of protection and selectivity to maintain reliable power to the facility by ensuring the protective device closest to a fault operates first.

Arc flash analysis calculates the risk of electric shock, incident energy level, and arc flash boundary at each location to warn qualified workers. It considers factors such as protective device clearing time, distance from the worker to the arcing blast, proper installation, and equipment maintenance. Keeping this analysis up-to-date is crucial for establishing safe work practices and ensuring compliance with safety standards.