Optimal placement of switch device is a combinatorial optimization problem with reliability cost objective function.
分段开关优化配置是一种以可靠性费用最小为目标函数的组合优化问题。
The monitor and protection device is made up of microprocessor and features stronger function, low cost and higher reliability.
基于对运行电流的各相序分量的分析，以微机构成监测保护装置，该装置功能强、成本低、可靠性高。
With the new control device, the reliability and the working function of the system can be improved, and the maintenance cost and the maintenance quantity of the system can be reduced in practice.
实践证明，该装置的使用提高了系统的可靠性和运转性能，减少了系统的维护量和维护费用。
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