System introduction was preceded by installation at specially selected hydroelectric power stations having the most difficult working conditions.
Zagorsk hydropower station was chosen with a 200 MW generator, heaving several difficult modes (generating, pump, synchronously-compensatory, as from a generator mode, and a pump mode) with big dynamic loadings and frequent start-ups (design number of start-ups of the generatorengine within a year, not less than 1400, number of transients within a year to 2750).
Other stations for working off low-frequency channels of measurement of vibration are chosen such as the Saratov hydropower station, whose hydro units have the lowest rotation speed in the world (50 rev/min – 0,83 Hz).
RUBY-M system is represented by a combination of transducers (vibration, rpm, temperature, current, pressure, etc.) that have cable connections with multichannel measuring units.
Each measuring unit can function independently or within a uniform structure with distributed architecture bound with Ethernet network. The units are designed as modules and perform measurement by up to 32 independent channels (dynamic, parametric, tachometer, etc.).
Flexible combination of various types of channels with different sampling capacities as well as channels for synchronous (parallel) vibration control in real-time mode, all built within one unit, ensures best adaptation of measuring capabilities of the system to protection, monitoring and diagnostics solutions for different types of rotating equipment.
The system incorporates special control algorithms for evaluation of operating status of assemblies with rotating bearings. Individual measuring units or the system in whole can function in a fully standalone mode providing a real-time protection of equipment on a hardware level and generating alarms if controlled parameters go beyond allowable settings.
Multilevel alarm and warning system implemented on hardware basis
Variety of technical solutions - possibility of working in a standalone mode, direct integration with automatic process control systems, establishment of distributed network architecture, etc.
Multifunctional measuring unit - combination of protection and diagnostics channels, use of up-to-date processor
Variety of input and output interfaces - possibility to connect practically any types of transducers (with rated 4-20 mA or 0-5 V outputs, sensors with IEPE interface, possibility to connect transducers via digital I2C interface), flexible integration
Immediate data control on hardware and software levels by means of built-in LED panel
Minimal cost - use of single PCB design for processing all of the signals
Easy installation and minimum length of cable connections - installation of measuring unit in proximity to controlled equipment