Get 25% off DC Arc Flash

Limited time offer valid until July 31st, 2024




At ETAP, our commitment to innovation in electrical safety and engineering excellence is unwavering. To celebrate National Safety Month, we’re offering a 25% discount on our advanced DC Arc Flash Software. This tool not only mitigates risks but also enhances the resilience of your electrical systems and introduces new technology for calculating DC Arc-Flash Incident Energy in Battery Energy Storage Systems (BESS).
Join us in elevating safety standards and empowering innovation.

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Why ArcSafety™ - DC Arc Flash is Important

ETAP DC Arc Flash complies with NFPA 70E 2024. This module allows engineers to compare DC arc-flash incident energy values and determine the most conservative results using a network-based solution tailored for different types of DC systems. ETAP DC Arc Flash includes methods specifically researched and designed for photovoltaics (PV), batteries, and other DC systems, including large DC capacitors and converters. Plus, ETAP 2024 software enables the evaluation of Arc-Flash Incident Energy on TCCs during protection and coordination studies using the proprietary DC C-areas concept. 

DC Arc Flash Software Key Features

  • Powerful DC C-areas to consider AF Incident Energy in TCCs
  • Incident Energy Analyzer
  • Graphical Incident Energy Plots
  • Graphical “What If” DC Arc Flash Calculator 
  • Integrated with DC Short Circuit 
  • Integrated with Star™ – Protective Device Coordination
  • Evaluate Arc Elongation and Erosion Effects 
  • Arc Flash Result Analyzer - Worst Case results 
  • One Line View of AF results using DataBlocks
  • Equipment labeling for NFPA 70E 2021 compliance 

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Featured Publications

Methods for Evaluating DC Arc Incident Energy in PV Systems

Renewable energy systems continue to be one of the fastest-growing segments of the energy industry. This paper focuses on the understanding of how photovoltaic (PV) technology behaves under DC arc conditions, with emphasis on the electrical safety aspect. This paper provides a comparative analysis of a proposed arc flash incident energy calculation method against different laboratory tests. DC Arc Flash Analysis software calculates the incident energy for different types of direct current applications, including mission-critical facilities, electrochemical plants, substation battery banks, photovoltaic and nuclear plants, as well as transportation systems.
Copyright Material IEEE Paper No. ESW2021-05.

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*Pending IEEE Copyright and Review

Methods for Evaluating DC Arc Incident Energy for Battery Energy Storage Systems 

Renewable energy systems continue to be one of the fastest growing segments of the energy industry. This paper focuses on the understanding of how energy storage technology behaves under direct current (dc) arc conditions. Because of the fast proliferation of renewable energy systems and the lack of formal dc equivalent calculation guidelines such as IEEE 1584 for alternating current (ac) systems, it has been necessary to rely on different equations and models presented by various researchers when calculating arc-flash (AF) incident energy (IE) for dc systems. This paper discusses the behavior of energy storage systems under arcing conditions and presents the results of available methods to estimate the dc arc-flash incident energy. This paper provides a comparative analysis of a proposed arc-flash incident energy calculation method against available laboratory tests. Explanations are provided regarding the effect the various types of batteries may have under short-circuit (SC) and arcing conditions. Comparisons of the proposed calculation method simulation results and laboratory dc arc test measurements are included.

A. Marroquin and T. McKinch, "Methods for Evaluating DC Arc-Flash Incident Energy in Battery Energy Storage Systems," 2023 IEEE IAS Electrical Safety Workshop (ESW), Reno, NV, USA, 2023, pp. 19-29, doi: 10.1109/ESW49992.2023.10188335.


Application of DC AF Incident Energy Reference Boundary Area Plots in Plots in TCCs Considering Input Parameter Variability

This work introduces the concept of dc C-areas in time-current characteristic plots (TCCs) for establishing a reference of dc arc-flash (dc AF) incident energy (IE) during the protection and coordination study.  C-area plots represent a constant allowable incident energy for a piece of equipment while considering arc flash input data variability.  The dc C-area reference plots allow protection engineers to select overcurrent protective device settings in TCCs while keeping track of the allowable incident energy. This work explains the theory and derivation of the dc C-areas, the impact of the input parameter variability, and provides a detailed explanation of the data collection challenges for performing a dc arc-flash incident energy analysis. This paper also includes application examples of C-areas for battery energy storage systems (BESS) and photovoltaic (PV) systems equipment protection and coordination studies.  

A. Marroquin, R. Veeraraghavan, W. Gonzalez, M. Ruta, "Methods for Evaluating DC Arc-Flash Incident Energy in Battery Energy Storage Systems," 2024 IEEE IAS Electrical Safety Workshop (ESW), Tucson, AZ, USA, 2024.

Featured Tutorials & Case Studies

Discover the latest features and capabilities of ETAP Safety modules in hands-on Technical Tutorials and Case Studies
presented by our Subject Matter Experts.

AC and DC Arc Flash Methods for Renewable Energy Systems

25:46 Webinars  

This presentation will address the difficulties and lessons learnt on performing arc flash analysis using available methods (outside the voltage limits of IEEE 1584-2018 standard) on a 2.3 MW PV generation facility. The analysis includes system modeling, short-circuit, arc flash (both AC and DC) using various applicable calculation methods that best fit this application along with available tools in ETAP and generating worst-case arc flash deliverables.

ETAP ArcSafety Solution Overview - A comprehensive suite of Arc Flash software analysis tools

26:19 Webinars  

Learn about ETAP ArcSafety, an all-in-one AC & DC arc flash solution for LV, MV & HV systems that improves safety, reduces risk, minimizes equipment damage, and validates mitigation techniques.

How to analyze the incident energy for PV systems with ETAP DC Flash Analysis software

24:12 Webinars  

Learn how ETAP DC Arc Flash Analysis software calculates the incident energy for photovoltaic systems, while considering different methods such as Maximum Power, Stokes and Oppenlander, Paukert, DGUV-I-203-077. This presentation shows how ETAP applies the DC arc incident energy models developed in IEEE "Methods for Evaluating DC Arc Incident Energy in Photovoltaic Systems"

Data Center Power System Expansion: DC Arc Flash Case Study

13:01 Webinars  

Case study of a a power system study, which involved the replacement of an extensive UPS system at a data center. The studies included short-circuit, protective device coordination, and arc-flash hazard analysis for both the AC and DC systems consistent with the NFPA 70E 2018 and IEEE 1584 2018 Standards. The DC equipment as installed required mitigation efforts due to high incident energies. This presentation details the analysis, findings, and recommended mitigation for anyone embarking on similar retrofit or expansion studies.