摘要
本文提出了一种利用微机软件实现的变压器差动保护电流回路断线闭锁方案。文中简述了该方案的构成原理及实施的软件框图。根据框图编制的程序经数字仿真和模拟仿真试验,证明这是一种可行的,简便可靠的,较完善的断线闭锁方案。
A blocking scheme for current circuit break in differential protection system of transformers performed by software of micro-computer is proposed in this paper. Next, a completed soft-ware block diagram is described. At last, the tests of the proposed scheme on both the digital simulation and the physical transformer model are performed. The results indicate that the scheme is feasible, simple and reliable.
