Why is the design of SSACs new 3 phase line monitor an improvement over the competitors designs?
A – A. The “Easy Set” design assures accurate adjustment of fault trip points. B. Separate circuitry senses low voltage, voltage unbalance, and phase loss; therefore, phase loss and unbalance voltage protection are not lost when regenerative voltages (back EMF) are present, or during periods of large fluctuation in the average line-to-line voltage. C. For the first time, the OEM design engineer or plant engineer is able to select the maximum percentage of voltage unbalance his 3 phase motor will be subjected to. Knowing the maximum voltage unbalance is crucial to accurately calculate load derating, and for selecting and adjusting overload devices (relays) for any given application.
