ABB TSITU01 TSI Termination Unit

ABB TSITU01 TSI Termination Unit

Overview

Introduction：ABB TSITU01 TSI Termination Unit is a TSI terminal unit in ABB Bailey Infi 90 series, which is mainly used for connecting and managing all kinds of sensors and monitoring equipments in the TSI (Turbine Supervisory Instrumentation) system to ensure the accurate transmission of signals and the stable operation of the system. ensure accurate signal transmission and stable operation of the system.

Functional features:

Signal transfer and distribution: It can receive signals from different types of TSI sensors, such as vibration sensors, displacement sensors, rotational speed sensors, etc., and transfer and distribute these signals to the corresponding monitoring equipments or control systems, so as to realise the comprehensive monitoring of rotating machinery, such as steam turbines.

Signal conditioning: Condition the input sensor signals, including amplification, filtering, isolation and other processing, to improve the quality and stability of the signals, reduce the impact of interfering signals, and ensure the accuracy of the monitoring data.

Troubleshooting and Alarm: With certain troubleshooting functions, it can monitor the abnormal situation of the signal in real time, such as signal interruption, over-range, etc., and send out an alarm signal in time to remind the operator to deal with it and ensure the safe operation of the equipment.

Compatibility and expandability: with ABB Bailey Infi 90 system has good compatibility, can be easily integrated into the existing control system. At the same time, the terminal unit also has a certain degree of expandability, according to the actual demand to increase or reduce the number of channels, to meet the different size and complexity of the TSI system configuration requirements.

Technical parameters

Number of channels: the number of common channels are 8 channels, 16 channels, etc., the number of different channels to meet the different application scenarios on the number of sensor signal access requirements.

Signal type: support a variety of types of TSI sensor signal input, such as 4-20mA current signal, 0-5V or 0-10V voltage signal, mV vibration signals, pulse signals, etc., can be adapted to different principles and specifications of the sensor.

Input impedance: For different signal types, there are appropriate input impedances to ensure the accurate acquisition and transmission of sensor signals. Generally speaking, the current signal input impedance is lower, the voltage signal input impedance is higher, the specific value varies according to different channels and signal types.

Accuracy and Resolution: The signal processing accuracy is high, generally can reach ±0.1% or higher accuracy, the resolution can reach 0.01mA, 0.01V, etc., to meet the requirements of high-precision monitoring of the TSI system.

Operating temperature range: usually able to work in a wide range of temperatures, generally - 20 ℃ to + 60 ℃ or wider range, to adapt to the ambient temperature conditions of different industrial sites.

Application Areas

Power Generation: In thermal power plants, nuclear power plants and other places, it is widely used in the monitoring and protection system of steam turbine to monitor the vibration, displacement, rotational speed and other parameters of the steam turbine in real time, which can provide an important guarantee for the safe and stable operation of the steam turbine, prevent the downtime accidents due to the equipment failures, and improve the efficiency of the power generation and the reliability of the equipment.

Petrochemical industry: TSI system is used for large compressors, pumps and other rotating mechanical equipment in the petrochemical industry to monitor the running status of the equipment, discover potential faults in time, reduce the time and cost of equipment maintenance, and ensure the continuity and safety of the production process.

Iron and steel metallurgy: In the blast furnace blowers, rolling mills and other key equipment in iron and steel mills, the ABB TSITU01 terminal unit in the TSI system monitors the vibration and rotational speed of the equipment, ensures the normal operation of the equipment, and improves the quality and efficiency of iron and steel production.

Installation and Maintenance

Installation requirements:

Installation location: should be installed close to the TSI sensors and monitoring equipment to reduce signal transmission distance and interference. Generally installed in the control cabinet or equipment near the special mounting bracket, to ensure that the installation environment is dry, well ventilated, to avoid the influence of electromagnetic interference and mechanical vibration.

Wiring specifications: Wiring should be careful to separate the sensor signal lines and power lines, control lines, etc., to avoid signal interference. The signal line should be shielded cable and reliably grounded to improve the signal's anti-interference capability. At the same time, to ensure that the cable is neatly laid and firmly fixed to prevent the cable from being pulled and worn.

Grounding requirements: the grounding of the terminal unit is very important, and grounding operations should be carried out in accordance with relevant standards and norms to ensure good grounding to prevent static electricity accumulation and electromagnetic interference on the equipment. Generally a separate grounding pole is used or reliably connected to the grounding system of the equipment.

Maintenance points:

Regular Inspection: Regularly inspect the appearance of the terminal unit to see if there is any dust accumulation, damage, looseness, and so on. Check whether the connection of each channel is firm and whether the signal lamps display normally.

Cleaning and Maintenance: Use a clean soft cloth or compressed air to clean the dust on the surface of the terminal unit regularly and keep the equipment with good heat dissipation. For long-term operation of the equipment, can be appropriate for internal cleaning, but need to pay attention to operational safety, to avoid damage to equipment components.

Calibration and verification: Carry out calibration and verification of the terminal unit in accordance with the specified period to ensure its signal processing precision and accuracy. The calibration should be carried out by professional personnel using standard calibration equipment and according to different signal types and ranges to carry out the corresponding calibration operation.