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DGR provided a device by device coordination study for the Willmar Municipal Utilities electric distribution system.
Utilizing Milsoft’s Windmil® and Light Table® software we were able to develop a system wide coordination philosophy designed to grow and develop as their system grows.
Utilizing a “zone coordination scheme” we provided recommended settings for relays in each substation as well as proper fuse and VFI selection on the distribution circuits.
The project proved to be challenging on a number of levels, including designing a coordination philosophy flexible enough to handle the activation/deactivation of local system generation.
The distribution coordination project dovetailed into a full 69 kV transmission system loop coordination analysis.
DGR provided a detailed arc flash hazard study for the electric distribution system for Milford Municipal Utilities. The study provided an easily updateable analysis of the primary distribution system, easy to understand tables for secondary systems, a detailed section by section analysis of the substation, as well as tabular results for the City’s water treatment facilities.
DGR utilizes a unique approach to arc flash studies to control cost as well as provide an easily updateable product to lessen the expense of future arc flash hazard study updates.
Our approach utilizes the latest Windmil® Modeling Software to develop a thorough electrical model of the system, allowing for more accurate analysis and lessening the need for overly cumbersome protective clothing.