New York City Transit Authority: New Cars, Old Power Analysis of R160 vehicle interaction with traction power substations on the Queens Boulevard Line. As New York City Transit (NYCT) placed its latest generation R160 rapid transit cars in service, it experienced “nuisance” substation trips on its busy four-track Queens Boulevard Line (QBL). These trips did not occur due to traction power faults but due to incompatibility between the current draw profile of the new cars and substation protection devices. NYCT needed specialized assistance to understand how to modify substation protection to avoid nuisance trips while maintaining protection from real faults. LTK used its TrainOps ® traction power simulator software to model a mix of R160 and older cars on the QBL. The project area was at t

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