scholarly journals Analysis and application research of new type online monitoring technologies for substation equipment

2021 ◽  
Vol 257 ◽  
pp. 01013
Author(s):  
Rong Cheng ◽  
Linjie Chai ◽  
Shiyao Hu ◽  
Yongpeng Shen

At present, a variety of online monitoring technologies for substation equipment including winding temperature by optical fiber, however, the accuracy and stability show great differences among them. This paper focuses on the advancement, feasibility and economics of various new technologies, combined with the construction and operation experience of wisdom substations, in order to select mature, reliable, and effective new online monitoring technologies that reduce the amount of equipment operation and maintenance from a number of new technologies. In the end, the article gives suggestions on the application of various new online monitoring technologies.

2021 ◽  
Vol 2074 (1) ◽  
pp. 012095
Author(s):  
Qishen Pan ◽  
Min Zhang ◽  
Haichang Zhou

Abstract Strong reality has been applied to training operations, and the use of virtual and augmented reality in aerospace, manufacturing and shipbuilding industries has yielded significant results. This paper mainly studies the application of Augmented Reality (AR) technology in power grid emergency training. This paper designs and implements an intelligent operation and maintenance system based on mobile augmented reality under the Android operating system. Augmented reality technology is applied to substation equipment operation and maintenance. Through the design and development of modules such as data management, equipment identification, holographic display of equipment information, integrated management and remote assistance, the application of Augmented Reality technology in substation equipment operation and maintenance is realized. Based on augmented reality and identification technology, the auxiliary information is transmitted to the intelligent terminal display of field operators in real time to assist the power grid emergency training and improve efficiency.


2021 ◽  
Vol 2 (1) ◽  
pp. 46-62
Author(s):  
Santiago Iglesias-Baniela ◽  
Juan Vinagre-Ríos ◽  
José M. Pérez-Canosa

It is a well-known fact that the 1989 Exxon Valdez disaster caused the escort towing of laden tankers in many coastal areas of the world to become compulsory. In order to implement a new type of escort towing, specially designed to be employed in very adverse weather conditions, considerable changes in the hull form of escort tugs had to be made to improve their stability and performance. Since traditional winch and ropes technologies were only effective in calm waters, tugs had to be fitted with new devices. These improvements allowed the remodeled tugs to counterbalance the strong forces generated by the maneuvers in open waters. The aim of this paper is to perform a comprehensive literature review of the new high-performance automatic dynamic winches. Furthermore, a thorough analysis of the best available technologies regarding towline, essential to properly exploit the new winches, will be carried out. Through this review, the way in which the escort towing industry has faced this technological challenge is shown.


2010 ◽  
Vol 97-101 ◽  
pp. 64-68
Author(s):  
Jian Chen ◽  
Jin Wang ◽  
Guo Dong Lu ◽  
Zheng Qi Ling

High- precision and large scale are the developing trend for injection molding machine clamping system .This paper compared the characteristics of three-platen toggle and dual-platen hydraulic clamping system. The key impact factors that effecting plastic parts` precision from clamping system were discussed systematically first time. Based on these analyses, a new clamping system has been proposed and manufactured to improve the plastics parts` precision, including three new technologies: new type dual-platen structure, parallelism adaptive correction technology and numerical controlled hydraulic servo system technology. It has been applied in practical machine successfully, and experiment result proves that it is effective enough to satisfying the high-precision molding of large plastics parts.


1969 ◽  
Vol 6 (03) ◽  
pp. 254-267
Author(s):  
J. E. Kaune ◽  
W. A. Fritz

At a meeting held in the Naval Ship Engineering Center, Philadelphia Division, in January and February 1967, the following were found to be the principal reasons for the 1200-psi-boiler problems:Introduction of a new type of boiler without a sufficient training program;lack of a sufficient supply parts backup;lack of adequate manuals and documentation;lack of sufficient auxiliary equipment to assist in boiler operation and maintenance, and lack of optimum design features. This paper describes the aforementioned problems and what has been and is being done to improve conditions. An extensive program is now underway to vastly improve overall boiler reliability and decrease maintenance requirements.


1999 ◽  
Author(s):  
Mitsuteru Kimura ◽  
Katsuhisa Toshima ◽  
Harunobu Satoh

Abstract A new type all optical vibration and acceleration sensor using the combination of micromachined Si cantilever and optical fiber is proposed, and its fundamental characteristics are demonstrated. The light emitted from bulb-lens set into the V-groove is reflected at the reflector formed on the Si cantilever and then recoupled into the bulb-lens. Several sensors with different length (0.64–6.0 mm long) of the Si cantilever are fabricated to compare the theoretical resonance frequency fr obtained from the simple model and experimental ones. They had good agreement. From the sensing principle the sensing frequency range of the vibration is suitable below the fr of the Si cantilever of the sensor.


Author(s):  
Lynda Avendaño Santana

Lateral learning in the last two decades can be seen in peer-to-peer learning that is being promoted by new technologies where there are apps that allow students to work together in real time through virtual space, a method which thereby shifts the focus from the solitary self to the interdependent group which lives an educational experience of a collaborative and distributed nature, whose focus lies in instilling the principle of the social nature of knowledge. The ideological bases of lateral thinking are sustained by issues such as emancipation of the student from the authority of the teacher, the relationship of collaboration, permitting the development of individual appreciations and ideas, based simultaneously on those of their peers, on the democratization of knowledge, and so on, which ultimately refers to a collaborative creative education, to a democratic education, and to an education for democracy that assumes the new technologized context in which we live. Because of this, lateral thinking is increasingly influencing everyday life and areas such as education and the arts, as it happens in the post-Internet art, and more specifically net.art (i.e., an online art), which is a collaborative creative experience that has become an instrument which allows us to see a “new type of art in the 21st century.” Net.art, Internet art and the most experimental design, therefore constitutes a community experience that hypertextualizes computerized languages and generates poetic perspectives as artistic practices of lateral thinking. It has bestowed upon us a series of mechanisms to devise collaborative development strategies for lateral learning based on those creative ludic educational experiences of using and interacting with new technologies. This is essential to bear in mind because, as Jeremy Rifkin says, collaborative learning helps students to expand their own self-awareness, including their “self” in reference to diverse “others,” and promotes in-depth participation in more interdependent communities. It extends the territory comprised within the boundaries of empathy.


Author(s):  
Pei Zhang ◽  
Wenshuai Hu ◽  
Xiaolong Hao ◽  
Dingding Xi ◽  
Shuaishuai Yan

In order to better guarantee the operation effect of substation equipment, a remote fault diagnosis method of substation equipment based on image recognition technology is proposed. Combined with image recognition technology, the running image of substation equipment is tracked and collected, the information characteristics of substation equipment are deeply excavated, and the fault area of substation equipment is accurately judged. Remote positioning has been carried out to realize the accurate detection of substation equipment fault. Finally, through the experiment, the remote diagnosis method of substation equipment fault based on image recognition technology is in the actual application process With higher accuracy, it can effectively ensure the safety of substation equipment operation.


Sign in / Sign up

Export Citation Format

Share Document