电气系统

The products includes on-line intelligent monitoring and diagnosis system of six dissolved gases and water contents in transformer oil; transformer partial discharge on-line monitoring system; capacitive electrical apparatus and metal oxide arrestor insulation on-line monitoring system,etc,.

该产品包括变压器油中六种溶解气体及微水含量在线智能监测诊断系统；变压器局部放电在线监测系统、电容性电气设备及金属氧化物避雷器绝缘在线监测系统等十多种系列产品，监测特征量多、功能齐全，智能化程度高，可靠性和灵敏度满足工程运行要求。

Bulldozer single-lever steering and braking electro-hydraulic proportional control system is composed of fluid control system and electric control system.

推土机单手柄转向制动电液比例控制系统是由液压控制系统和电气控制系统组成的。

Mainly engaged in wind power Units main control system, wind monitoring system and related electrical control system Development and manufacturing of professional firms.

主要从事风力发电机组主控制系统、风场监控系统及相关电气控制系统的开发和制造的专业公司。

On the subject of the composition and working principle of the proposed system, the control module, motor diffluence module and distribution module of hydraulic system, position detecting module and PLC control module of electric system are analyzed and designed.

针对该系统的组成和工作原理，具体分析设计了液压同步控制系统的控制阀组、马达分流模块、配油模块；电气同步控制系统的位置测量模块、 PLC 控制模块等。

Swithced reluctance machine is a new structure of electromotor. Combining this new structure with the modem power electronics technique and modem control technique, swithced reluctance drive has been one of the pop issues of the development of modem electric dirve.

开关型磁阻电动机调速系统融开关型磁阻电动机与现代电力电子技术、控制技术为一体，兼有异步电动机变频调速系统和直流电动机调速系统的优点，已经成为当代电气传动发展的热门课题之一。

In association with the improvement design practices on winding equipment for main cable of large span cable bridges liking Shantou Gulf Bridge, Xiling Yangtse River Bridge and Xiamen Haicang Bridge, some contents are systematically described on the basis of electric control system of ZLC series winding machine for main cable, including mechanism composition of the winding machine for main cable, mathematical relationship between rotation speed of winding system and travel speed of the winding machine, work principle of accurately matching control on the two speeds with PLC and frequency converter, wireless measurement and monitor of winding system tension, automatic override control on cable clamp as well as practical effect of a real bridge application.

结合对汕头海湾大桥、西陵长江大桥和厦门海沧大桥等大跨度悬索桥的主缆缠丝施工设备－主缆缠丝机的改进设计实践，以ZLC系列主缆缠丝机的电气控制系统为基础，系统介绍了主缆缠丝机的机构组成、缠丝系统旋转速度与缠丝机行走速度之间的数学关系、采用PLC及变频器对两速度进行精确匹配控制的工作原理、缠丝系统张力的无线测量、监控、索夹的自动跨越控制以及实桥的应用效果。

The test stand is mainly comprised of main body, water circulation system, hydraulic system, electropneumatic control system and computers.

试验台主要由主机、水路系统、液压系统、电气控制系统和微机系统构成。

It consists of belt/roller coater/plate-chain/multi-times chain/trolley conveyer line, package line, varies of special machine, vacuumizing system, working performance test system, safety test system, electronic control system and is a complete set of equipment.

由皮带输送线、辊筒输送线、板链输送线、倍速链输送线、台车输送线、包装线、各种专机、抽真空系统、工况检测系统、安全检测系统、电气控制系统组合而成，形成完整的成套设备。

Combined with the nonlinear characteristics of wind turbines and the control strategy of generator-side converter and grid-side converter, used the design method for digital PI regulator, the back-to-back PWM converter on the wind-power system with direct-driven permanent magnet synchronous generator was built in the simulink of the MATLAB.

结合风力机的非线性特性和机侧变换器与网侧变换器的控制策略，应用数字PI调节器参数设计方法，在MATLAB/simulink仿真环境下构建了基于背靠背变换器的永磁直驱风力发电系统，系统包括风力机、永磁同步发电机、变频器、电网及其电气控制部分的数学模型，仿真结果表明风电系统的PI调节器参数设计合理且系统具有良好的运行特性。

Combined with technical transformation of 125MN extrusion press extrusion dummy block transportation system, by analyzing the existing problem in the old system, choose a scientific project-to make a frequency-converter speeding-adjusting system of crane based on communication of Profibus-DP.

结合125MN挤压机运垫系统的改造，通过分析老系统存在的问题，制定科学的改造方案－基于Profibus-DP标准的通信变频调速系统，并组织设计、选型和实施，从根本上降低设备故障率，提高系统运行速度和控制精度，并为其他在线设备的电气改造提供可靠的经验。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。