How do you protect large motors?

We protect a large motor just like any other electrical device or system. First, we conduct a survey to determine the electrical system flow and distribution characteristics (e.g., voltage, current, number of phases, number of conductors, Wye or delta, etc.). Second, we determine the points of entry or points creation of transients, such as lightning, and/or large inductive or capacitive loads. Next, we provide an I.T. System Shield® protection solution from the service entrance down to the individual equipment level as required. Generally, we will protect large motors with higher peak surge current models, depending upon the results of the survey and consideration of other factors such as exposure level, criticality to operations, and ampacity.