Why is the secondary oil pressure of the turbine exceeding 0.45 MPa, reaching 0.5 MPa?
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Our plant’s turbine was shut down for 2 days to repair a minor issue with the compressor, during which time the oil pump continued to operate. Once the unit is started, everything seems to be normal, but when the load increases, the secondary oil pressure can exceed 0.45 MPa and reach 0.5 MPa; moreover, the actual opening degree of the control valve exceeds 100% as well, reaching 125% (see figure). Excuse me, why is this? Are there any formulas for calculating the secondary oil pressure, as well as the input current of the electro-hydraulic converter?
https://bbs.hcbbs.com/thread-3014011-1-1.html You’re colleagues, aren’t you? The photos are the same! :lol