Power System Studies

Fault Studies
EPI provides fault studies that identify available fault current throughout your distribution system. We then confirm the installed equipment is designed for the level of fault current available. This assures that when a fault occurs that upstream devices are not destroyed in addition to the failed device.

Coordination Studies
EPI provides Coordination studies that identify fuse sizes, breaker and relay settings that are coordinated to assure minimum plant disruption in the event of a fault. Upon completion of the study EPI is prepared to make the necessary changes to implement the changes required to prevent unnecessary outages to critical equipment.

Harmonic Studies
EPI performs predictive studies and investigations as to the effects of harmonics on a power system when harmonics-creating equipment is added. By predicting the harmonics, EPI can recommend ways to minimize the harmful effects. Once the equipment is online, actual harmonic measurements can be taken to ensure proper operation.

Arc Flash Studies
EPI provides analysis of arc flash energy within your facilities distribution system. The National Electrical Code NFPA70 article 110.16 requires labeling of electrical equipment as to Arc Flash Hazard. EPI also provides this labeling and can recommend methods of reducing the level of the hazard such as dual setting of your protection devices. There can be one setting for normal use and one for use during maintenance.

Load and Disturbance Studies
EPI performs load studies. These can be used for a number of purposes. For existing facilities wishing to expand, EPI can perform load studies to determine where the new loads may be added to the power system or if rebalancing of existing load is needed. Load monitoring can also verify accuracy of power company billing. Monitoring for sags, surges and spikes can determine if the utility is responsible for equipment malfunction.