EVALUATE THE HEALTH AND EFFICIENCY OF YOUR POWER SYSTEM WITH HARD DATA

  • One of the most important components of a power system study. Arc Flash Studies calculate the amount of potential energy released during an arc flash incident. Arc flash labels are required by NFPA 70E (and indirectly through OSHA) on electrical equipment that may require examination, adjustment, servicing, or maintenance while energized.

  • Assesses the magnitude of currents during short circuit faults, verifying that protective devices can safely interrupt the fault. This study is important to verify that equipment AIC and SCCR ratings are adequate for the maximum fault current they may experience.

  • Evaluates the protective devices (circuit breakers and fuses) to verify they will operate in the correct sequence to isolate faults efficiently.

  • Evaluates the flow of electrical power (active and reactive) and voltage levels throughout the system under different load conditions.

  • Analyzes the impact of starting large motors on your electrical system, focusing on potential voltage dips and instability during acceleration.

  • Assesses the impact of non-linear loads on the system’s power quality. Often performed when running multiple motors on variable frequency drives.

An electrical schematic diagram showing the layout of electrical components and connections for a power distribution system.
Two warning labels about arc flash and electric shock risks, with differences in arc flash boundary distance, incident energy, and PPE requirements. Left label has a 188-inch boundary, 50.8 cal/cm² incident energy, and requires PPE with 480 VAC; the right label has a 10-inch boundary, 0.48 cal/cm² incident energy, and also requires PPE with 480 VAC.