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    7.4.1 AC field flashing,DC field flashing and residual voltage field flashing may be adopted for the field flashing mode of turbine generator units. The field flashing circuit may be designed based on a flashing current of 10% of the generator no-load fie...[繼續(xù)閱讀]

    8.1.1 All of the generator circuit breakers and high voltage circuit breaker of generator-transformer unit (when the generator circuit breaker is not equipped) shall be taken as synchronization points.The automatic synchronization shall be adopted as the ...[繼續(xù)閱讀]

    7.5.1 The mode of direct three-phase short-circuit should be adopted for generator electrical braking.7.5.2 The excitation power supply of electrical braking may be derived as the followings.(1) When the excitation transformer is connected to the generato...[繼續(xù)閱讀]

    1.0.1 This code is compiled to realize automation of large-and-medium-sized hydropower plants and to improve power quality,operation safety,economical benefit and labor productivity.1.0.2 This code is applied to automation design of newly-built,extended o...[繼續(xù)閱讀]

    6.2.1 As each of the oil pressure system,used as the servomotor oil source for butterfly valve,spherical valve and ring gate,is equipped with two oil pumps,the pumps shall be in a lead-lag control arrangement and the main and standby motors shall be autom...[繼續(xù)閱讀]

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    3.4.1 A ring gate shall be controlled either locally or remotely,and its joint control with unit automatic control shall be achieved.3.4.2 The following preconditions shall be satisfied before opening of ring gate.(1) Unit emergency shutdown sequence is n...[繼續(xù)閱讀]

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    3.1.1 An emergency gate shall be able to be controlled both locally(in the hoist room),and remotely (in the central control room and unit local control unit,LCU for short below). In the local control mode,closing and opening of the gates shall be able to ...[繼續(xù)閱讀]