Faster interruption of circuit breakers in the transmission voltage offers significant advantage to the transmission system.

断路器在输电电压下的快速开断对输电系统是明显有利的。

youdao

In 1949, the largest thermal power unit of China was 10 MW and the highest transmission voltage was 220 kV, all designed and made by foreign countries.

1949年我国火电最大机组为1万千瓦，输电电压等级最高为220千伏，且全部为外国设计制造。

youdao

With the expansion of power grid and the increase of the transmission voltage grade, the status of relay protection in power system is becoming more and more important.

电网规模的扩大、输电电压等级的提高，使得继电保护在电力系统中的地位变得更加重要。

youdao

Northern Ireland Electricity (NIE) said the blackout was caused by an issue with the high voltage transmission network.

BBC: NIE confirm network fault caused Belfast blackout

It also wants any new high voltage transmission lines to avoid areas of outstanding natural beauty, national parks, world heritage sites and green belt land.

BBC: Fears over pylons in beauty spots

Higher-voltage transmission lines that have become more common in recent years are intrinsically more susceptible to upset, and those lines are largely concentrated in the manufacturing centers of the Midwest.

FORBES: Intelligence Community Warns Solar Storms Could Collapse Electric Grid