economical operation

This paper has determined the real power economical operating zone of a three circuit transformer through analysing and calculating its economical load factor and optimal economical load factor, then given a reliable theoretical guidance to the economical operation of three-circuit transformers.

本文通过对三绕组变压器有功经济负载系数和有功最佳经济负载系数的分析，确定出三绕组变压器的有功经济运行区，为指导三绕组变压器有功功率的经济运行提供了理论依据。

Based on forenamed economical theories, we find and judge the factors affecting the demand changing and supply insufficiency of rural credit by particular analyzing the capital operation and management in rural area.

通过对农村信贷的资金运营和经营管理等各方面进行详细而深入的分析，找出影响农村信贷需求变化和供给不足的现实因素，并在前面分析的基础上，对这些因素加以剖析。

Two-year operation data shows that excellent economical benefits have been gained by the optimization of heat exchange network. Terminal temperature of crude heat exchange has been increased from 285 ℃ to 305 ℃. Energy conservation effect is evident.

两年的实际运行表明，本次换热网络优化取得了显著的经济效益，原油换热终温由改造前不到285℃提高到305℃，节能效果显著。

Fourthly , there is a new improvement in the quality of economical operation.

经济运行的质量有新的提高.

Fault location equipment is very important for safety and economical operation of power system.

故障测距装置对于保证电力系统安全、经济运行的一种是非常重要的.

Study of the economical operation form of pumped-storage plant in the electric systems

抽水蓄能电厂在电力系统中的经济运行方式初探

The Economical Operation of Pipe-main Scheme Steam Turbo-generator Sets

母管制汽轮发电机组的经济运行

The Applied Research on the Economical Operation of Transformers in the Area Power Network

地区电网变压器经济运行工程化研究

Among our country project of transmitting and converting electricity, mutual inductor guarantee power system safe, reliable and economical operation essential equipment.

在我国输变电工程中，互感器是保证电力系统安全、可靠和经济运行必不可少的设备。

Voltage and reactive power ( volt/ var) control is an important issue related to voltage stability, voltage quality and economical operation of power systems.

地区电网电压无功控制问题是一个关系到系统电压稳定、保证电压质量、提高电网运行经济性的重大课题，因此一直受到电力系统运行人员和研究人员的关注。

By use of dynamic payback period method, analysis economical thermal resistance, R_e, in most economic status for cost of construction and operation of exterior-protected construction's thermal insulating layer.

以隔热层最小热阻为基准，选择动态投资回收期法，分析围护结构隔热层建设投资费用与运行费用等综合最经济状态下的经济热阻R e。

Economical operation of machine tool and tool enterprise for a top half time on 2003

2003年上半年机床工具行业经济运行情况

Advance a king of arithmetic on C-cutter radius compensation basing on linear interpolation. To turn trigonometric function and evolution operation to that of addition and subtraction, simple and practical, there for solving the problem how to comprehensively realize C-cutter radius compensation in economical CNC system.

提出一种基于直线插补思想的C刀补算法，将三角函数及开方运算转换为加、减运算，算法简单实用，解决了C刀补在单片机开发的经济型CNC系统中的实现问题。

The Condensers' Characteristic Test and Plant Safe and Economical Operation in Daya Bay Nuclear Power Station

大亚湾核电站凝汽器特性试验与机组安全经济运行

A method for effective and economical operation of water treatment system

给水处理系统高效经济运行研究之一&策略与模式

Analysis on Economical Operation for Cold Storage Building with Two Temperature Levels

双温冷库经济运行分析

Research on the Constraints to Operation Mode of Main Wiring Diagram in the Economical Operation Problems of Hydropower Plant

水电厂内经济运行问题中主结线运行方式约束的研究

Investigation on Optimal Control of Economical Operation of Water Source Heat Pump

水源热泵系统节能运行控制研究