第一，从经济性的角度，继续沿用原有的保护装置及保护方案，则需要尽量减少

第一，从经济性的角度，继续沿用原有的保护装置及保护方案，则需要尽量减少或规避DG 接入对配
电网的影响；第二，鉴于DG 接入后，对短路电流值和短路电流方向带来影响，严重影响了电流保护
的整定，可以考虑采用其他原理的保护方案，降低或消除短路电流值变化对保护整定的影响

結果 (中文) 3:

First, from the economic point of view, continue to use the original protection devices and protection programs, you need to minimize or circumvent DG access matchingThe influence of the grid; second, in view of the DG access, the short-circuit current value and short-circuit current direction, seriously affected the current protectionCan be considered using other principles of protection scheme to reduce or eliminate the impact of short-circuit current value on the protection setting