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The thyristor parameters of the KGPS1000/4.0 IF power control cabinet

Time: 2019-07-03

The thyristor parameters of the KGPS1000/4.0 IF power control cabinet are as follows:

The design incoming line voltage is 380V, and the following data can be obtained after calculation:

     DC voltage Ud=1.35×380V=510V

     DC current Id=1000000÷510=1960A

IF voltage Us=1.5×Ud =765V

Rectifier silicon rated current IKK=0.38×Id=745A

     Rectified silicon rated voltage UV=1.414×UL=1.414×510V=721V

     Inverter silicon rated current Ikk=0.45×19600=882A

Inverter silicon rated voltage UV = 1.414 × Us = 1082V

Selection of thyristor models: use of Xiangfan Taiwan-based thyristor:

     Because the 6-pulse single-rectifier output is used, the rectified thyristor is KP2000A/1400V (6 in total), that is, the rated current is 2000A, and the rated voltage is 1400V. Compared with the theoretical value, the voltage margin is 1.94 times and the current margin is 2.68 times.

The inverter thyristor is KK2500A/1600V (four in total), that is, the rated current is 2500A, and the rated voltage is 1600V. Compared with the theoretical value, the voltage margin is 1.48 times and the current margin is 2.83 times.



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