CTI 2500-RBC 901E-2500-RBC Output logic module
According to the technical choices on the power conversion system, the Brayton Cycle can be started by using the generator as a motor. This solution implies having a direct link of the generator with turbine and compressor. With a view to drive the generator as a motor, a Synchronous Frequency Converter must be used. This system will control the speed of the lineshaft. It will drive it up to the speed when the turbine can sustain the lineshaft. The speed will then increase up to nominal. The generator can then be connected to the grid (synchronisation).
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----------------------Ruichang Mingsheng Automation Equipment Co., Ltd----------------------
PLC module, programmable controller, CPU module, IO module, DO module, AI module, DI module
Network communication module,
Ethernet module, motion control module, analog input module, analog output module, digital input module, digital output
Module, redundancy module, power module, relay output module, relay input module, processor module
The frequency converter
can be used when stopping the unit: the speed can be controlled
according to appropriate stages of deceleration and to help core cooling.
Finally, it can also stop the lineshaft acting as a brake.
Fig 1, 2a and 2b illustrate a simplified schematic single line diagram and the associated starting
sequence, both established for the General Atomics/ GT-MHR project.
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