| The Westinghouse NIS continuing training class focuses on solving actual hands-on troubleshooting scenarios using plant references and schematics. Because of this aggressive pace, the maximum class size is eight students. The classroom phase of continuing training is slanted toward recognition of normal and abnormal signal conditions within the Source Range (SR), Intermediate Range (IR) and Power Range (PR) instruments, and relies heavily on the students’ previous NIS knowledge. Identification of normal and abnormal signals allows the student to quickly develop corrective solutions. When feasible, the Six-Step Troubleshooting Process is combined with plant-specific practices. The continuing training course consists of classroom lecture, discussions, equipment demonstrations, test point signal recognition, and "hands-on" troubleshooting techniques. The students also review recent industry practices and events, where applicable. Westinghouse uses many typical trouble scenarios to provide experience in troubleshooting system failures. Where appropriate, the students use plant specific schematics and/or procedures for NIS troubleshooting. |
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| Course Schedule: | |
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Day 1 The first day typically consists of lectures and discussions of the NIS overview, NIS block diagram, auxiliary circuits, and interfaces to other plant systems. Class participants cover detailed Source Range circuitry on day two, and receive hands-on troubleshooting experience. On day three, students analyze the Intermediate Range circuits and perform additional equipment-failure troubleshooting. Day Four concentrates on Power Range signal tracing and students continue to perform failure recognition on all three instruments. The instructor uses the final day for a review of the NIS concepts that were presented during the week, and to administer a written examination. The trainer can also conduct an optional troubleshooting performance examination for qualification purposes. |
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