The new phase-comparison principle is the main feature of the new distance relay.
全新的比相原理是新型距离继电器的主要特色。
The most common form of protection on high voltage transmission systems is distance relay protection.
在高压传输系统中,应用最多的是距离保护。
The most common form of protection on high voltage transmission systems is distance relay protection.
在高压传输系统中,应用最多的是距离保护。
应用推荐