1) rate of electric network loss
电能损失率
2) power and energy losses
功率损耗与电能损失
3) energy loss
电能损失
1.
Its electrical energy loss is compared in theory with the existing single-end feeding system with AT-parallel only in the section posts and its advantages are obvious, furthermore, the protection and control system of its feed sections is analyzed.
针对同相AT牵引供电系统,提出了一种采用全并联AT的双边供电(或多电源供电)的牵引网供电方式,对其电能损失在理论上与现有的AT分区所并联的单边供电系统进行了比较,优越性显而易见,并进一步对其供电臂的保护控制方案进行了分析。
2.
From annual operation cost and energy loss the writer derives optimal conductor section for an electrical power distrbution line and calculates the optimal supply radius subject to the rate voltage fall in the paper.
文章从电力线路的年运行费用和电能损失两个方面求导出配电线路的最佳导线截面,然后根据电压降作为控制条件,求取最佳的供电半径。
4) loss of electric energy
电能损失
1.
The way of reducing the loss of electric energy to its minimum was discussed from several paths such as reducing the loss of voltage in power supply line, selection of dissimilar line section according to the densities both of permissive current and economical current.
本文从减少供电线路的电压损失 ,按照允许电流和经济电流密度选择线路导线截面等几方面 ,分析探讨最大限度降低电能损失的途
5) kinetic energy loss rate
动能损失率
1.
To reflect the kinetic energy loss intensity in a compound channel, two new concepts, transverse kinetic energy correction coefficient (TKECC) and kinetic energy loss rate (KELR) are put forward for steady, mean and turbulent flow.
为了反映动能损失的强度,针对恒定、均匀、紊动水流,提出了横向动能校正系数和动能损失率的概念。
补充资料:电能利用率
电能利用率
utilization rate of elec-trical energy
d一onnengl一yongl山电能利用率(utslization rate of eleetrieal en-ergy)用电体系(即用电对象或范围)内的有效电能量占供给电能量的百分数。电能利用率表示用电体系在一定的生产周期内,完成生产计划或产品时,供给电能量的有效利用程度,是衡量用电体系合理用电程度的主要标志,是判断用电体系耗能水平与电能利用合理性、经济性的一项综合性指标,也是考察企业、车间电能利用状况的基本依据。电能利用率一般通过电能平衡测试取得。其表达式为11一欲‘10。%或H一(‘一畏)只10。%式中H为用电体系的电能利用率.%;W。为供给电能量,是指从用电体系边界外供给用电体系的有功电能量,kw·h;Wy为有效电能量,指用电体系在一定生产工艺条件下,达到预定生产目标及工艺规定的产品质量标准时,在物理化学变化中必须消耗的有功电能量,kw·h;W.为损失电能量,其值为供给电能量与有效电能量之差,kw·h
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