Technical Seminar Effective solutions for motor starting and protection presents about IEC Standard and Motor Starting Methods; effective solutions for motor starting and protection motor protection agenda; motor protection manual motor starters ms132 rated ultimate short circuit breaking capacity; main electrical parameters of motors and somethings else.
4.1 Concept of Energy Transmission and Distribution 4.2 Transmission Line Structures Joe C. Pohlman George G. Karady 4.3 Insulators and Accessories George G. Karady and R.G. Farmer 4.4 Transmission Line Construction and Maintenance Wilford Caulkins and Kristine Buchholz 4.5 Insulated Power Cables for High-Voltage Applications Carlos V. Núñez-Noriega and Felimón Hernandez 4.6 Transmission Line Parameters Manuel Reta-Hernández 4.7 Sag and Tension of Conductor D.A. Douglass and Ridley Thrash
4.8 Corona and Noise Giao N. Trinh 4.
Recent advances in power electronics and highspeed microprocessors have led to considerable
attention in electrical machines with regard to their applications in industrial drives. This paper brings to the fore, various types of electrical machines, their operations, and applications, as well as the method of determining their parameters. Various ways of protecting electric machines against overloads and mechanical faults are also highlighted.
Bài giảng Electrical and electronic principles - Chương 4 gồm có những nội dung chính sau: Maximum power transfer, matlab fundamentals, lass class cont’d, single frequency AC analysis (MultiSim). Mời các bạn cùng tham khảo.
Lecture Electric circuit theory - Two-port networks presents the following content: Parameters, relationships between parameters, two-port network analysis, interconnection of networks, equivalent two-port networks of magnetically coupled circuits,...
(BQ)This paper proposes an experimental investigation and optimization of the various machining parameters for the electrical discharge machining (EDM) processes on Inconel 718 super alloy using a multi objective particle swarm optimization (MOPSO) algorithm.
(BQ) The adequate selection of manufacturing conditions is one of the most important aspects to take into consideration in the die-sinking electrical discharge machining (EDM) of conductive ceramics, as these conditions are the ones that are to determine such important characteristics as: surface roughness, electrode wear (EW) and material removal rate, among others. In this work, a study was carried out on the influence of the factors of intensity (I), pulse time (ti) and duty cycle (η) over the listed technological characteristics.
(BQ) The present work deals with the comparison of the MRR for EN19 and EN41 material in a die sinking EDM machine. The various input factors like Pulse ON time, Pulse OFF time, Discharge current and voltage were considered as the input processing parameters, while the MRR is considered as the output. Optimization using Taguchi method was performed to predict the best combination of inputs towards maximum output.
(BQ) The article presents an idea about the effect of the various input process parameters like Pulse ON time, Pulse OFF time,
Discharge Current and Voltage over the Surface Roughness for an EN41 material. Here, 5 different output parameters concerned
with surface roughness like Ra, Rq, Rsk, Rku and Rsm are taken and optimized accordingly, using the Grey-Taguchi method.
(BQ) Electrical Discharge Machining (EDM) is a non-traditional machining process which is more efficient than traditional maching process due to ease of machining of difficult-to-machine materials with complex shapes. EDM is used for machining of toughened and high strength conductive materials which is hard enough to cut by traditional processes.
(BQ) Electrical Discharge Machining (EDM) is a non-traditional machining process which has the ability to machine hard, difficult to machine materials and the parts with complex internal shapes by using precisely controlled sparks that occurs between an electrode and a work piece in the presence of a dielectric fluid.
(BQ) Electrical Discharge Machining (EDM) is a non-traditional, thermo electrical process, which erodes material from the work piece by a series of discrete sparks between the work and tool electrode immersed in a liquid dielectric medium.
(BQ) In this research work two different materials have been used as work pieces. These EN8 and D3 steel materials have been
machined in an Electrical discharge machine which has wide application in Industry fields. The important process parameters that have been selected are peak current, pulse on time, die electric pressure and tool diameter. The outputs responses are material removal rate (MRR), tool wear rate (TWR) and surface roughness (SR).
(BQ) The present study discusses about having an overview of the
EDM process, modeling of process parameters, and influence of process parameters such as input electrical variables, pulse shape, and discharge energy on performance measures such as material removal rate, surface roughness and electrode wear rate.
(BQ) From the experimental results, it has been found that the electrical conductivity of the tool electrode has the most influencing nature on the machining characteristics in EDM process. The optimal combination of the input process parameters has been obtained using Taguchi-grey relational analysis.
(BQ) The method of electrical discharge machining (EDM), one of the processing methods based on non-traditional manufacturing procedures, is gaining increased popularity, since it does
not require cutting tools and allows machining involving hard, brittle, thin and complex geometry
(BQ) This paper is devoted to a study of the influences of EDM parameters on surface roughness for machining of 40CrMnNiMo864 tool steel (AISI P20) which is widely used in the production of plastic mold and die. The selected EDM parameters were pulsed current (8, 16 and 24 A), pulse time (2, 3, 4, 6, 12, 24, 48 and 100 s) and pulse pause time (2 and 3s). It was observed that surface roughness of workpiece and electrode were influenced by pulsed current and pulse time, higher values of these parameters increased surface roughness.
(BQ) The paper describes the application of the fuzzy logic analysis coupled with Taguchi methods to optimise the precision and accuracy of the high-speed electrical discharge machining (EDM) process. A fuzzy logic system is used to investigate relationships between the machining precision and accuracy for determining the efficiency of each parameter design of the Taguchi dynamic experiments.