| 摘要 |
Test rig for a back-to-back test of a turbine, comprising a generator and a drive motor driving the generator, a shaft coupled to the drive motor and to a surrounding construction for taking a reaction torque created by the driven generator and received by the shaft, and a load cylinder arrangement coupled to the shaft, whereby the surrounding construction comprises two hydraulic cylinders (8a, 8b) each being coupled to a radial torque arm (7a, 7b) projecting oppositely to different sides from the shaft (10), each cylinder (8a, 8b) comprising a first and a second fluid chamber (15a, 16a, 15b, 16b) divided from each other by a piston (19a, 19b) and changing their volume when the shaft is loaded due to receiving a reaction torque, with the first chamber (15a) of the first cylinder (8a) being coupled to the second chamber (16b) of the second cylinder (8b) by means of a fluid hose (17) and with the second chamber (16a) of the first cylinder (8a) being coupled to the first chamber (15b) of the second cylinder (8b) by means of another fluid hose (18). |
