It is applied in relay protection, system metering and analysis of power system. It has a close relation with the security and reliability of power system.
它被广泛应用于继电保护、系统监测、电力系统分析之中，关系到电力系统的安全性与可靠性。
Security and reliability of relay protection system are important factors for power system to operate safely.
继电保护系统的安全可靠是电力系统安全运行的重要保证。
Security and reliability of relay protection system are important factors for power system to operate safely.
继电保护系统的安全可靠是电力系统安全运行的重要保证。
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