Standard TSI Monitoring and Protection System

# TSI Monitoring and Protection System

The integrated TSI Monitoring and Protection System (Turbine Supervisory Instrumentation) serves as the core online monitoring and safety protection equipment for large rotating machinery, primarily steam turbines, and is widely deployed in thermal power, nuclear power, chemical and other industrial sectors. Its core value lies in delivering early warning, equipment protection and fault traceability through real-time and precise monitoring, preventing catastrophic failures such as rotor bending and bearing bush burnout, and providing data support for equipment operation and maintenance.

The system adopts a layered architecture of "sensing-processing-decision-making-output", consisting of three major modules. The sensing layer comprises various high-precision sensors that collect core parameters including rotor vibration and axial displacement. The signal processing layer amplifies and filters raw signals to convert them into standard signals. The display and decision-making layer realizes parameter visualization, threshold configuration and abnormal command output to guarantee the reliability of monitoring and protection functions.

The core functions of the TSI system cover four dimensions: monitoring, early warning, protection and diagnosis. It conducts round-the-clock uninterrupted monitoring of critical parameters such as axial displacement and radial vibration. Multi-level thresholds enable audible and visual early warnings as well as speed-up interlock during unit startup and shutdown phases. When parameters exceed critical safety thresholds, the system interlocks with DEH and ETS systems to trigger emergency shutdown. Meanwhile, it stores operational data to facilitate fault diagnosis and improve operation and maintenance efficiency.

TSI system configurations vary based on unit characteristics. Small-scale units prioritize basic protection with simplified redundant designs. Large thermal power and gas turbine combined-cycle units feature enhanced monitoring accuracy and comprehensive functions. Nuclear steam turbines adopt highly redundant designs with additional dedicated monitoring items to meet stringent safety standards.

This tailored solution is specially developed for continuous monitoring and protection of industrial mechanical equipment ranging from moderately critical to low-critical assets across multiple sectors. It is applicable to petrochemical, oil and gas, power generation, water treatment, pulp and paper, machining, mining, cement and other industries. Covered large rotating machinery includes large feed water pumps, chemical process pumps, large cooling tower fans, tunnel ventilators, blowers, induced draft fans, coal mills, centrifuges, mixers, large agitators, turbo compressors, reciprocating compressors, drive motors, generators, water turbines and more.