1.
Because of the longer repair time for underground transmission systems, expensive duplication facilities are sometimes installed to reduce the risk of overlap-ping outages4.
由于地下输电系统的修理时间较长,因此有时就安装双套重复设施以降低重叠停电的危险。
2.
This has prompted system designers to consider underground AC or DC transmission by cable.
这就促使电力系统设计者考虑采用电缆由地下交流或直流输电。
3.
Research on Transmission Line Fault Location in Non-Direct Grounded Neutral System Under the Condition of Defect Data
缺陷数据条件下小电流接地系统输电线路故障测距的研究
4.
Research on the line faults and its protection of HVDC transmission system in metallic return operation
直流输电系统单极金属回线运行方式下线路接地故障及保护研究
5.
Research on the DC Current Distribution in AC Power System Caused by an HVDC System;
HVDC输电系统入地电流在交流系统中分布的研究
6.
MEASURE THE RESISTANCE BETWEEN THE SYSTEM RELAY OUTPUT CKT AND GROUN
测量系统继电器输出电路与地线之间的电阻。
7.
Modeling and Simulation for the Traffic and Transportation System of Underground Structure Group;
地下洞室群交通运输系统建模与仿真
8.
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,
9.
A PRELIMINARY RESEARCH ON TRANSMISSION SYSTEM PLANNING METHODOLOGY IN ELECTRICITY MARKET ENVIRONMENT;
电力市场环境下的输电系统规划方法初探
10.
Development of Tower Grounding Device s Impulse Ground Impedance Measurement System;
输电杆塔接地电阻的冲击测量系统的研制
11.
Application Study of Distribution Network Power Transformer Management Information System;
地区电网输变电管理信息系统的应用研究
12.
Transmission network resource management system based on digital map;
基于电子地图的电信传输网资源管理系统
13.
Selector and Locator of Faulted Transmission Line for Single Line to Earth Fault in Power System
电力系统输电线路单相接地故障选线与测距
14.
Research on Modes of Connecting Bulk Power Bases to Power Grids by UHV Transmission Systems
大型电源基地接入特高压输电系统方式研究
15.
SYSTEM RELAY OUTPUT CIRCUIT
系统继电器输出电路
16.
The Integration of Fault Location Network on Traveling Waves and Geography Information System
输电线路故障行波测距网与输变电地理信息系统集成
17.
Application Research of Transportation Visualization System for Complicated Electromagnetic Environment
复杂电磁环境下运输可视化系统应用研究
18.
Underground transmission is more expensive than the overhead alternative.
地下输电要比架空线输电成本高