Midwest Power Systems, Inc.

 Helping Manage the Electrical
 Distribution System

Protective Device Coordination Study
Protective Device Coordination studies seek to meet protection requirements, while isolating the smallest portion of the system for a fault or other disturbance.  Coordination Studies should be included in new construction and upgrade projects, where adjustable trip circuit breakers and relays are used.

Electrical Contractors:  Studies are available to meet project specs and provide you with the trip settings needed for low voltage breakers and medium voltage relays.

Facility Managers:  If you've experienced power loss to a larger portion of the system than was necessary, the Coordination Study is a great benefit.  This service can identify problem areas, minimize downtime, and maximize the potential of equipment already place. 

      Coordination Studies:

  • Review circuit breaker & fuse applications.
  • Determine device size, or settings, to meet system protection requirements.
  • Provide recommended trip device settings for low voltage breakers.
  • Provide recommended trip settings for medium voltage relays.
  • Include time-current curves used to graphically illustrate selectivity (coordination) between devices.
  • Provide a written summary of system coordination & recommendations.

Midwest Power Systems provides coordination studies for all major manufacturers equipment including Cutler-Hammer, GE, Square D, Schweitzer, Multilin, and Basler.