When synchronizing two systems, if the synchroscope is not moving, what should the system operator do first?

When synchronizing two systems, if the synchroscope is not moving, the first action the system operator should take is to adjust generation to verify whether the synchroscope is functioning properly. A stationary synchroscope indicates that the two systems may not be in sync, and adjusting generation can help determine if the synchroscope is simply not reflecting a proper phase relationship or if there is an actual misalignment between the systems.

This adjustment allows the operator to check if the conditions of the systems are changing, which in turn should cause the synchroscope to either begin to move or confirm that it is indeed not operational. If the synchroscope responds appropriately, it provides crucial feedback about the synchronization process.

In contrast, checking for system faults or implementing load shedding should typically follow after confirming the operational status of the synchroscope. These actions might be necessary if there indeed is a fault, but they don’t directly address the immediate need to verify whether the synchroscope is accurately indicating synchronization. Additionally, starting backup generation systems may be a response to a failure or an operational issue but does not serve the purpose of immediately determining the synchroscope's functionality. Therefore, adjusting generation is the most logical and effective first step to take in this situation.