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DC arc flash

The electric industry continually stresses improvements to protect personnel against arc flash hazards. These powerful events can cause operational downtime, and more importantly, substantial injury to employees working on or near electrical equipment.

Integrated as an additional module to Eaton's CYME software series, the DC arc flash analysis module complements the existing DC network modeling and analysis capabilities. Using the CYME DC short-circuit analysis engine and the coordination analysis part of the protective device analysis module, the DC arc flash hazards analysis module computes the fault currents and the fault-clearing time of the over-current protective device in order to evaluate the level of incident energy and the associated risk category. Based on industry-recognized standards and robust calculation engines, this analysis is a well-rounded solution to help engineers in the prevention and protection against the dangers of potential arc flash events.

DC arc flash module

Features

Standards :

Stokes and oppenlander
Paukert
Maximum Power

Main capabilities:

Bus data of DC networks can be supplemented with DC arc flash related information (connected equipment type, fixed or moveable exposed circuit, enclosure and reverberation coefficients, working distance, bus gap, clearing time and fault current)
Calculation of the maximum bolted short-circuit current levels at the desired workplace (bus)
Batch mode simulation which performs the analysis on every bus in the DC network in one single simulation
Automatic detection and validation of protection schemes in the DC network
Calculation using default values depicted by standards or user-specified values
Additional user-defined options:
- Include an arcing current multiplier
- Select devices that contribute to arcing current and include their contribution to the result
- Choose either NFPA-70E or CSA Z462 as the standard for reports and warning stickers
- Select the arc-in-a-box incident energy calculation for enclosed-type equipment

With the one-line diagram, the user can easily create different what-if scenarios (different operating levels, different protective devices or different protective device opening times, etc.) to better assess the arc flash risks and to find solutions that could minimize such risks.

One-line diagram

Users can display and customize the results of the analyses on the network. The results can be displayed in tags and the one-line diagram can be color-coded by risk category, incident energy or arc flash boundary.

Reports and charts

The results can be displayed in a tabular report. In addition, charts can be used to compare the arc energy level between different scenarios of clearing time and working distance.

Warning labels

Create weatherproof warning labels to display information such as arc flash boundary, incident energy at working distance, risk category and personal protective equipment. Customize these stickers with any additional information required and choose the label format that suits needs.

Eaton’s CYME Volt/VAR optimization module helps find the optimal way to operate distribution network so that the current and future demand can be met through energy efficiency improvement and demand reduction.

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Need product support?

CYME users portal: my.cyme.com

Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere. We are guided by our commitment to do business right, to operate sustainably and to help our customers manage power ─ today and well into the future. By capitalizing on the global growth trends of electrification and digitalization, we’re accelerating the planet’s transition to renewable energy and helping to solve the world’s most urgent power management challenges.