In recent years, accidents of urban large scale sewage treatment plant at home and abroad have took a big loss to countries and individuals. Based on field research and scientific analysis of one large sewage treatment plant this paper use the safety check list to evaluate its safety and get that the main risk factors which should be focused on are poisoning and suffocation, electrical injuries...

Wei Teng 1,2,*, Xiaolong Zhang 1, Yibing Liu 1,2, Andrew Kusiak 3 and Zhiyong Ma 1 1 School of Energy, Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China; [email protected] (X.Z.); [email protected] (Y.L.); [email protected] (Z.M.) 2 Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education, North Chi...

Painters of the electric power industry, IT has accelerated the development of a smart grid environment. Of Electric Power Industry in the server, watt-hour meter, modem, network, and remote metering and remote meter reading, remote control, and demand is adjustable. Through server optimization techniques to obtain the information of the remote terminal server is installed as a regional, if you...

In order to address the issue of low degree of automation and huge waste of electric energy of the equipment in drilling engineering freezing station which adopts the freezing method of coal mine, we need to design an intelligent control system to control both the brine pump and double stage ammonia screw compressor. According to the actual cooling need in freezing project, this new system is a...

The total replacement value of the US transmission lines alone (excluding land) is conservatively estimated at over $100 billion dollars [1] and triples when including transformers and circuit breakers. Investment in new transmission equipment has significantly declined over the past 15 years. Some of the equipment is well beyond intended life, yet is operated under increasing stress, as load g...

It has been known for some time that non-destructive electric breakdowns precede destructive thermal dielectric breakdown. We have been studying both processes in oxides between 5 nm and 80 nm in thickness. We have shown that the electric breakdowns can trigger dielectric breakdown under certain conditions. This triggering of dielectric breakdown causes TDDB distributions to be nonunique. The T...

There is a strong push within the mining sector to automate equipment such as large excavators. A challenging problem is the control of motion on high inertia degrees of freedom where the actuators are constrained in the power they can deliver to and extract from the system and the machine’s underlying control system sits between the automation system and the actuators. The swing motion of an e...

In this paper we show how it is possible to reuse optical supports (CDs, DVDs, etc.) without using chemical or physical transformation, only employing a software that can easily run on domestic computers. This software can make obsolete optical supports useful again, converting de facto WEEE (Waste electric and electronic equipment) into EEE (Electric and electronic equipment). A massive use of...

The widespread use of Power Electronics based equipment has produced a significant impact on quality of electric power supply. Conventional power quality mitigation equipment is providing to be inadequate for an increasing number of applications. One modern and very promising solution that deals with both load current and supply voltage imperfections is the Unified Power Quality Conditioner (UP...