Dissertation > Excellent graduate degree dissertation topics show

Research on Operating Mechanism of CM2 Molded Case Circuit Breaker

Author: ZhangZuoChu
Tutor: NiJunFang
School: Suzhou University
Course: Mechanical and Electronic Engineering
Keywords: Circuit Breaker Operating mechanism Simulation
CLC: TM561
Type: Master's thesis
Year: 2009
Downloads: 159
Quote: 1
Read: Download Dissertation

Abstract


MCCB(Molded Case Circuit Breaker) is an important part of low-voltage electrical apparatus,its interrupting ability mostly depends on performance of operating mechanism. Domestic designers mainly use graphical solution method,i.e.drawing the position of mechanism motion at every moment to get motion characteristics of mechanisms,which has many disadvantages such as inaccuracy.In this paper,Close force and torque,Operating force and torque,Reset force and torque,Release force and torque of operating mechanism is calculated through the method of Static Analysis,the basic relationship of bars is determined,Based on calculating the base relationship of operating mechanism;the model of operating mechanism of CM2 is constructed and Adams is used to simulate the movement of the mechanism,the influences of spring’s elasticity、location of shaft and shape of the bars on the breaking speed of the operating mechanism are analyzed.Based on the results of simulation,MCCB of CM2 is made.the experiment of operating mechanism are tested and verified by comparison with simulation.The experimental results show that the performance index of the operating mechanism are achieved as above designed,the experimental results is verified as the simulation.The performance of the device is researched and manufactured successfully and put into use effectively in ChangShu switchgear MFG.CO.,LTD.

Related Dissertations

  1. The Setting Bases of Working Pressure in LNG Systems and Orthogonal Experiment Design of Heat Exchangers,TQ051.5
  2. Study of Interaction between Epoxy Molecules and Carbon Fiber Surface with Molecular Simulation,TB332
  3. Research on Mechanism Analysis and Modeling Simulation of Horizontal Well Tractor,P631.83
  4. Study on Springback of High-Strength Steel Stamping,TG386
  5. Numerical Simulation and Experiment on Hydroforming of Cups with Controllable Radial Pressure,TG386
  6. Research on Technology and Mechanism of Joining Cemented Carbide to Carbon Steel,TG454
  7. The Brake Performance of Hydraulic Retarder and Simualtion Research on Its Application for Aircraft Arrestment,TH137.331
  8. Satellite Attitude Determination Based on Gyro and Star Sensor,V448.2
  9. Numerical Simulation of Film Cooling in Turbine Cascade with Non-Axisymmetric Endwall Method,V231.3
  10. Research on Orbital Control Method for Space Rendezvous and Docking,V526
  11. High Speed Aerodynamic Convection and Coupled Heat Transfer of Complicated Bodies,V215.4
  12. The Analysis on Characteris of Vibration Source about Vertical Vibration of Surrounding Environment Induced by Rail Transit,U211.3
  13. Single Neuron PID Control for Electro-Hydraulic Servo Unit of Ship Rudder,U666.152
  14. Simulation Analysis on Temperature Stress of RCC Arch Dam and Its Construction Joints Design Research,TV642.2
  15. Study on the Heat Transfer Characteristics of Particle Cluster in Circulating Fluidized Bed,TK124
  16. Numerical Simulation of SNCR Process of a 600MW Utility Boiler,TK222
  17. Numerical Simulation of Biomass Direct Reburning,TK16
  18. Numerical Simulation on Pulverized Coal Combustion Process in a 670T/H Tangential Firing Furnace,TK224.11
  19. Numerical Simulation on the Combustion Process in the Furnace of a 1000MW Lignite-Fired USC Boiler,TK224.11
  20. Study on Gas-Solid Two-Phase Flow in Spouted Beds,TK173
  21. Experimental Study and Numerical Simulation on Aerodynamic Field of Tangential Bias Swirl Burner,TK223.23

CLC: > Industrial Technology > Electrotechnical > Electrical > Electrical switches,circuit breakers > Breaker
© 2012 www.DissertationTopic.Net  Mobile