Short Circuit & Coordination Study

Short Circuit and Coordination Study

A Short Circuit and Coordination Study is one of the most important steps you may ever take to protect your personnel and electrical distribution system. When an electrical fault or overload exceeds the interrupting rating of the protective device, the consequences can be devastating including injury, damaged electrical equipment, and costly downtime.

Short Circuit Study uses a computer model that determines the ‘worst case’ fault level at the electrical distribution equipment. The fault levels are compared to the existing device interrupting ratings to determine if the protective devices are rated in accordance with the manufacturer’s published data and applicable standards. If required, new ratings will be determined.

A Coordination Study maximizes power system selectivity by isolating faults to the nearest protective device, as well as helping to avoid nuisance operations that are due to transformer inrush or motor starting operations.