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Simulation of circuit breaker maglatch dynamic behaviour
Konšel, Ladislav ; Dostál, Lukáš (referee) ; Valenta, Jiří (advisor)
This work includes the theory of circuit breaker construction and is focused mainly on overload function. It mainly deals with electronic circuit breakers, i.e. equipped with an electronic trip unit. The work is focused on the part of trip unit - maglatch of trip unit. For the purposes of simulation, the geometric model is created. Maxwell program is used for the simulation. The work describes the options for conditions input which are necessary for simulation. Using the distribution of magnetic field intensity and magnetic flux density in the section of trip unit maglatch is determined by the simulation. Furthermore, the force effects acting on the armature of the maglatch are calculated. Force values and the directions acting on the armature are determined by changing the simulation parameters - shift of the armature and coil current. Simulations are performed both for steady-state and for dynamic simulation – movement of armature is taken into account. The supply source for the maglatch is created by an external circuit.
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Proprioception Training Effectiveness for Improving Balance analysed by Computerized Dynamic Posturography
Mukhtar, Mahera ; Nováková, Tereza (advisor) ; Vomáčková, Helena (referee)
Effectiveness of Proprioception Training for Improving Balance Analyzed by Computerized Dynamic Posturography The Master thesis, based on conduction of an experimental study. The aim of this experimental study was to find out how one-time proprioceptive training can help in improving the balance. The method used for analyzing the balance was done on Neurocom as it is considered a validated technique for testing balance. Then proprioceptive training was performed for the static and dynamic stability effect. For instance, both side legs were trained and focused on the "short foot"/ "three point standing" by Janda, followed by static single leg standing with eyes open and then closed; secondly Dynamic standing by adding arm or leg movement while maintain the posural stability progressively. All based on the knowledge acquired during the Master Degree Physiotherapy program at FTVS UK. The participant's characteristic in the research are between the ages of 20 to 30 years, with no specific diagnose. All the 40 participants were divide into 2 groups, 20 of each. The Control group and the Experimental group (Proprioception intervention), each group has had their balance tested twice on the Neurocom (CDP). The control group was measured first and after 20 minutes they were measured again. The experimental group was...
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Simulation of circuit breaker maglatch dynamic behaviour
Konšel, Ladislav ; Dostál, Lukáš (referee) ; Valenta, Jiří (advisor)
This work includes the theory of circuit breaker construction and is focused mainly on overload function. It mainly deals with electronic circuit breakers, i.e. equipped with an electronic trip unit. The work is focused on the part of trip unit - maglatch of trip unit. For the purposes of simulation, the geometric model is created. Maxwell program is used for the simulation. The work describes the options for conditions input which are necessary for simulation. Using the distribution of magnetic field intensity and magnetic flux density in the section of trip unit maglatch is determined by the simulation. Furthermore, the force effects acting on the armature of the maglatch are calculated. Force values and the directions acting on the armature are determined by changing the simulation parameters - shift of the armature and coil current. Simulations are performed both for steady-state and for dynamic simulation – movement of armature is taken into account. The supply source for the maglatch is created by an external circuit.
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