Calculation Of110kV Substation Relay Protection Configuration And Setting

By analyzing the power system specific analysis and calculation,we can learn the various configuration is how to protect the system,it can be a fixed value,to meet the requirements of system protection device in the fixed value to work,this is called the setting calculation of relay protection. Setting calculation plays an important role in the protection work.By setting the fine calculation,each protective device in the system together to work safely.According to the data of the power load110kV substation design, in accordance with the relevant provisions and norms, to relay protection configuration and setting calculation of1lOkV substation, including the main wiring design and the configuration of relay protection, short-circuit current calculation and relay protection device selection etc. Design according to the substation data, through technical comparison and economic comparison of selection of transformer, and then determine the110kV main electrical wiring diagram, then the maximum and minimum operation mode of short circuit current calculation，the transformer and the circuit of configuration design of relay protection,and finally completes the system protection configuration diagram.