电气系统

The first one mainly introduced engineering calculate method of load and selected the all electric implements. They are in charge of the motor four rotation states, and the sensor is in charge of testing the position of helicopter airscrew and display by computer. The second one designed the controller of the motor based on low-voltage electric implement and analyzed the all system.

第一部分，主要介绍了负载参数的工程计算，选取整个系统的电气元件，电气元件部分主要负责双速电机的正向、反向和高、低速旋转状态，测速传感器用于完成对桨距位置的检测和最终的显示任务；第二部分，设计了基于低压电器的总桨距调节控制器，并对整个系统进行详细的分析。

This design explains is basis of graduate design assignment book, combine bear on book that《electric equipment》、《electric system steady condition analyzing》、《relay safeguard》、《electric engineering specialty enchiridion of graduate design》,this is my summarize of three years in university .

本设计说明书是根据毕业设计任务书的要求，结合"电气设备"、"电力系统暂态分析"、"电力系统稳态分析"、"继电保护"、"电气工程专业毕业设计指南"等有关书籍而制定的，是我三年大学学习的总结。

The paper introduces to the control principle of the radial drilling machine. Established the programmable controller improve the design project of electric control system of Z3040 radial drilling machine. Completed the design of the software and hardware of the electric control system, Among them include the model of PLC choice、the I/O allotment of the address、the I/O hardware connects the line diagram、PLC trapezium diagram ' s design.

论文分析了摇臂钻床的控制原理，制定了可编程控制器改造Z3040摇臂钻床电气控制系统的设计方案，完成了电气控制系统硬件和软件的设计，其中包括PLC机型的选择、I/O端口的分配、I/O硬件接线图的绘制、PLC梯形图程序的设计。

This paper is to studies the machine process in common use Z 3040 in inside radial drilling machine electric control system improves problem. The aim is solving device complexity, inferior reliability and stability, malfunction analysis and trouble obviation of the traditional relay electric control system.

本论文是研究机械加工中常用的 Z3040摇臂钻床传统电气控制系统的改造问题，旨在解决传统继电器-接触器电气控制系统存在的线路复杂、可靠性稳定性差、故障诊断和排除困难等难题。

Aimed at this stative, an expert system of general electric switching operation was designed, which adopts these methods which establish a virtual substation and construct the models of facilities.

针对目前已开发出的电气倒闸操作票生成系统仍存在某些缺陷的状况，开发出了一种通用型电厂电气倒闸操作专家系统。

The company is mainly specializing in design,manufacture,installation and maintenance of many kinds of marine hydraulic and electric equipments,such as marine hydraulic steering gear,winch,anchor wind lass,oil box,control station and alarm systems etc;we also can design,manufacture and assemble various customized hydraulic and electric control systems as well as the import and export service for the marine hydraulic and electric equipments.

公司以设计、制造、安装和维修各种船舶液压和电气设备（如液压舵机、液压绞盘，液压锚机、油箱，驾控台，报警系统等）为主要业务，并可承接各种机械液压站和电气控制系统的设计、制造和安装调试，同时可进行各种船舶配套设备的进出口业务。

ABSTRACT:Aim at the electricity control system that the porcelain and ceramics presses the brick machine, design to press the total control method and contents of the PLC the electricity control system of the brick machine.

摘 要：针对陶瓷压砖机的电气控制系统，设计了压砖机的PLC的电气控制系统的总体控制方式和内容。

The special equipment of a piston ring-process action requirements of piston ring beveller is explained.

阐述了一种活塞环专用设备—活塞环倒角机的工艺要求，介绍了该设备的继电器控制系统的设计方案，给出了电气控制系统的主电路、控制电路图以及主要电气元件的选择方法。

The article introduces electric and control system grounding function and mode; discusses each station valve chamber grounding mode and characteristics in natural gas transmission and distribution pipe network , and analyzes its possible problems, then puts forward solving measures.

文章介绍了电气和控制系统接地的作用和接地方式；探讨天然气输配管网中各场站、阀室电气和控制系统的接地方式和特点，并分析这种接地方式可能存在的问题，提出解决措施。

In this paper, a tooth for milling tenon electrical control of the entire process, electrical components will be used to achieve the milling work tenon tooth path of automatic and manual control, selected relay - access control systems to accomplish this purpose, it has the advantage of Line intuitive, are most commonly used electrical appliances, the replacement of convenience, cheaper prices, through repeated experiments and demonstration confirmed by the use of electrical components can accurately on a milling machine tenon teeth effective control of the machine tools to improve the control of a certain value .

本文研究了专用榫齿铣电气控制的全部过程，将利用电气元件来实现对榫齿铣工作路径的自动与手动控制，选用了继电-接触系统来完成这一控制目的，它的优点是线路直观，大部分电器均为常用电器，更换方便，价格较便宜，通过反复的实验与论证结果证实所用电气元件能准确对机床榫齿铣进行有效控制，对机床控制的改进有一定的参考价值。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。