1. 0. 1 This specification is formulated with an aim of definingelectro-mechanical design of water and hydropower project,so asto ensure safe,economical,and reliable operation.1.0.2 This specification is applicable to the design of hydraulicmachinery,prim...[繼續(xù)閱讀]

    2.1.1 The selection of turbine type shall be made by puttingforward alternative types of turbine in accordance with the rangeof operating head and operating characteristics of hydropowerplant. And technical and economic comparisons,such as technical perfo...[繼續(xù)閱讀]

    2.2. 1 The schemes of pump type shall be proposed accordingto the operating head of the pumping station and operation characteristics,and the final selection shall be determined by technical and economic comparisons.2.2.2 The number of main pumps shall be...[繼續(xù)閱讀]

    2.3.1 The turbine inlet valve shall be selected through technical and economic comparisons on the basis of head,diameter andfollowing conditions. If the inlet valve is not provided,otherrunaway prevention measures shall be taken.1 In the case that two or ...[繼續(xù)閱讀]

    2.4. 1 The control system of turbine shall have good stabilityand regulation quality and meet the requirements for stable operation under various operating conditions and the requirements ofpower grid for frequency and power regulation.2.4.2 Each unit sha...[繼續(xù)閱讀]

    2.5. 1 The water hammer of accident outage shall be calculatedfor the pumping station which is possible to produce hammerdamage. The transient calculation shall be based on the differenthead and various operating conditions so as to determine the closing ...[繼續(xù)閱讀]

    2.6. 1 Appropriate slow-speed overhead crane with single trolley or double trolleys or other type of crane may be selected according to the powerhouse conditions.The rated hoisting capacity of the crane shall be determinedin accordance with the total weig...[繼續(xù)閱讀]

    2.7.1 Pumping station under one of the following conditionsshould be installed with vacuum pumping system and water filling system,and the vacuum pumping system shall be wellsealed.1 Axial flow pumping station and mixed flow pumping station with siphoning...[繼續(xù)閱讀]

    2.8. 1 The technical water supply system consists of the watersupply for the cooling and lubricating of the main and auxiliaryequipment such as hydraulic turbine generator units/motor-pumpunits,water-cooled transformer,oil sump tank of the oil pressure un...[繼續(xù)閱讀]

    2.9. 1 The compressed air system supplies compressed air to oilpressure devices,unit braking,dewatering for condenser operation,air sealing,equipment maintenance clean-up,anti-freezingair blowing,vacuum breaking,etc.2.9.2 The compressed air system compris...[繼續(xù)閱讀]