With OOP technology, a breakerstatus simulation system of protection is successfully developed, which combines the network topology graphics and backup database.
应用面向对象的编程技术，研制成功电网拓扑图形与后台数据库相结合的继电保护开关状态仿真系统。
2
Periodic check the breaker, switchgear, operation unit, protection device, transformer, capacitor, UPS, lighting fixture working status;