Durability or service-life monitoring device for a turbogenerator shaft
US4057714A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1976 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Sep 29, 1996 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06G7/64
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Device for monitoring the service life of the shaft of a turbine-generator set includes an analog computer circuit having a pair of inputs and an output, means for feeding to the inputs of the analog computer circuit electrical quantities proportional to the voltage and the current of the generator, the analog computer circuit having means for converting the electrical quantities that are proportional to the generator voltage and current to an electrical quantity proportional to the electrical torque in the air gap of the generator, a simulation circuit having an input connected to the output of the analog computer circuit for receiving therefrom the electrical quantity proportional to the electrical torque in the air gap of the generator, the simulation circuit comprising means for determining the torques in individual sections of the shaft of the turbine-generator set and having a multiplicity of outputs corresponding to the number of individual sections of the shaft, an analog-to-digital converter having an output and having inputs connected to the outputs of the simulation circuit for receiving therefrom analog data corresponding to the torques in individual sections of the sha…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.