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National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.01 seconds. 
Simulation of circuit-breaker trip unit
 Dostál, Lukáš ; Augusta, Zbyněk (referee) ; Valenta, Jiří (advisor)
Securing of electrical devices is important not only to protect against destruction under the effects of electric current, but also for protection of people or animals against electric shock. With increasing of living standards goes hand in hand increasing of the electricity consumption. Therefore In the grid of low voltage, there are increasing short-circuit currents. With improving technology is posed considerable demand on the performance, security and switching capacity of circuit breakers. This thesis is oriented on development of thermal and electromagnetic switch of circuit breaker on which is put a big demand in development of new types of circuit breakers. The thesis is interesting because of comprehensive use of circuits’ breakers since it can be used in AC and DC networks with frequency of 50 Hz and 400 Hz.
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Fluid couplings and torque convertors
 Dančák, Zdeněk ; Sloupenský, Zdeněk (referee) ; Klas, Roman (advisor)
This work presents basic points and informations as to fluid couplings, torque convertors and the means of connection in hydromechanical transmissions. Work describes various structural design, it’s perfection, disavantages, and cooperation with engine. There are described the possible means of torque characteristics optimalization according to the needs of operation as well as the means to achieve better efficiency.
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National Repository of Grey Literature : 12 records found   previous11 - 12  jump to record:
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