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- W2363249316 abstract "Ouyanghai hydropower station is planned to make reformation for increasing capacity. In order to ensure safe operation of inlet pipeline and unit, hydraulic characteristic of this hydropower station is required to be known. Thereby load rejection tests, variable load tests and variable rotating speed tests are performed. Resonance phenomena is found at small load while variable load tests are carried out. The same frequency which is 1 4 times of rotative frequency is found in analysis of vertical vibration in upper generator bracket, pressure in spiral case inlet, pressure in draft tube and in headcover. For detecting the course of this frequency, it is discovered by detailed analysis that separation fluid at cavity leads to produce the hydraulic resonance frequency when 1# unit is working under the small load condition. Some methods to eliminate or avoid this hydraulic resonance are presented in this paper." @default.
- W2363249316 created "2016-06-24" @default.
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- W2363249316 date "2005-01-01" @default.
- W2363249316 modified "2023-09-23" @default.
- W2363249316 title "Hydraulic resonance analysis of 1# unit of Ouyanghai hydropower station" @default.
- W2363249316 hasPublicationYear "2005" @default.
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