Through the comparison of LOGO and relay control, it's clear that LOGO control module has superiority and better price and application prospect in similar engineering.
Having been run on simulated experiments for many times, the designed device measures up to requirements of the relay function, which is of certain engineering value.
通过实验，设计的装置多项性能指标符合继电保护的要求，有一定的工程意义。
3
The digital substation construction scheme, engineering application model, network mode and the configuration of relay are discussed.