The Hydro Dynamic Pressure Sensor System consists of the 350300 Hydro Dynamic Pressure Transducer which uses piezoresistive sensing technology and the 146824 interconnect cable. It is intended for measuring both static and dynamic pressure in fluid machines such as hydro turbines or centrifugal pumps. For Hydro Turbine applications this measurement can help our customers monitor hydraulic phenomena such as Rough Load Zone, vortexing, and cavitation in the draft tube and head cover area, as well as pulsations in the penstock. For centrifugal pump applications this measurement can help customers with monitoring cavitation and other flow instabilities that are potentially detrimental to machinery and operations.
This sensor is an integral part of a Hydro Turbine or Centrifugal Pump Condition Monitoring and Asset Management System and, when utilized with our 3500/46M Hydro Monitor and System 1* condition monitoring and diagnostics software, static trending and specialized dynamic plots are available for diagnostics. The Dynamic Pressure Transducer has a robust design for high reliability in plant environments and is designed for 50 million cycles.
Hydro Turbine Monitoring
Competitive Advantage through Improved Asset Reliability.
In today's world of partially deregulated utilities and grid systems where fish and water issues often eclipse energy issues, the operating flexibility of hydro machines has often led them to be the load-follow units with continuous load changes and partial-load operation. Running a unit at partial load brings into play considerations like rough load zone and cavitation, along with operation that is far from the unit’s peak efficiency. Further, continuous load cycling introduces thermal, mechanical, and electrical stresses on the machinery that may not have even been considered in the original design.
To address these needs, the Bently Nevada team has developed the most comprehensive system we’ve ever offered for monitoring the condition of hydroelectric turbine-generators: a 3500 series monitor module with advanced functionality uniquely tailored for hydro units; all-new transducers for monitoring generator air gap, low frequency seismic, and stator end winding vibration. New hydro-specific capabilities including partial discharge support and embedded intelligence in System 1* software based on our own knowledge and partnerships with several of the most recognized industry companies.
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