Faulty wiring can result in false alarms or failed detection, compromising the reliability of the protection scheme. Troubleshooting this issue involves carefully inspecting the wiring connections to identify any loose or incorrect connections and rectifying them accordingly. This has been possible before using the same PC Use the online E-Series protective relays troubleshooting guide to diagnosis and correct issues with Eaton's motor relay, generator relay, distributor relay, transmission. Selectivity is a mandatory requirement for all protection, but the importance of it depends on the application. For example, unselective protection operation during a medium voltage network fault will cause an outage for an unnecessarily large number of consumers. Protection relays are programmable devices, and their settings must be carefully configured to match the characteristics of the power system they are protecting. Incorrect settings can lead to inadequate fault. Their primary function is to protect circuits by automatically isolating sections of the grid when faults or abnormalities occur. When a fault is detected, the relay sends a signal to circuit breakers to isolate the faulty section, preventing damage to equipment and minimizing. Used relays (that have been installed or have switched any load current) must be tested for functionality at much higher voltages and currents - typically about 12V, 100 mA (or 500mA). Consult Quality or Product Engineering for advice.