What is a coordination study and how will your plant benefit by conducting one?

Simply put, a coordination study is the systematic study of current responsive devices in an electrical power system.

The purpose of a coordination study is to determine the ratings and settings of fuses, breakers, and relay's in order to isolate faults or overloads.

When is a coordination study required?

• For new electrical systems
• For plant electrical system
• expansion/retrofits
• For coordination failure in an existing plant

Why should a coordination study be performed?

• To prevent injury to personnel
• To minimize damage to components
• To quickly isolate affected portion of your system
• To minimize the magnitudes of available short-circuits

Using ETAP power system modeling software, SUBCOE can provide your plant with fuse, relay, circuit breaker, and motor protection device settings that provide systematic protection zones for all of your electrical equipment.

The ETAP coordination study software quickly performs complex calculations to evaluate your system performance. By providing you with computer aided plots of the time-current coordination curves,

SUBCOE engineers will analyze your system and generate a base case model that helps you to visually understand your system settings. Additionally, computer aided coordination rapidly determines how minor changes in relay or fuse settings will effect the overall performance of your protection system.

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