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Year: 2007, Volume: 7, Issue: 1
... CISPR 15 standard. The information about resonant circuit coupled to the junction. A load is coupled in disturbances emissions produced by compact lamps in 30 parallel with the ... for producing the disturbances; whether Figure 1. Electronic ballast: half-bridge series-resonant parallel loaded the power supply cable has any influence in emission of ballast these disturbances and ...
Year: 2007, Volume: 7, Issue: 1
... PUNCH-TROUGH STRUCTURE DEVICE quented at a special switching frequency, the power drawn by a load from a direct voltage source can be controlled. DC A punch-trough IGBT has ... is higher. Some over 230 C, the operation properties begin to degrade. overloads require that the device survives with forward Many silicon semiconductors on today's market are ...
Year: 2007, Volume: 7, Issue: 2
... time spent in The P5200 provides a safe means of measuring circuits operating in undesirable load or fault conditions. with floating potentials up to 1000 VRMS from ground and ... R. Schoen and Thomas G. Habetler, "Effects of Time- Varying Loads on Rotor Fault Detection in Induction Machines", [1] A.H. ...
Year: 2007, Volume: 7, Issue: 1
... of the incremental transducer, power circuit and motor; initial conditions that describe: initial position, speed and acceleration; initial condition of the stimuli and of the load; load, which is time variable load torque at motor axle. The functional module contains: microcontroller that Figure 2. The diagram of rG vector includes ...
Year: 2007, Volume: 7, Issue: 2
... basic feature of this scheme is, that the adjusting windings of the phase-shifting transformer are executed with adjusting branches removed on mobile contact of the mechanism of switching under loading (Tap Changer), which are connected directly to a supply voltage. In this case there is freedom of management as an additional ungle β o Figure ...
Year: 2007, Volume: 7, Issue: 2
... desired bandwidth and V(OUT) Time phase margin. That will have the form: Fig( s+ 16) Figure 6. Output voltage for a load varying from 20% to 100% GC( s)= 1.8 (10) s 410V Knowing the analogical controller GC( s), we can ...
Year: 2007, Volume: 7, Issue: 2
... stores data on this controller and can Peripheral Interface), 40 MHz maximum speed. The command it to send data to the application running on the microcontroller is loaded with a C written program and it remote computer. has the following tasks: read packets through SPI from The motor used for this project is a direct ...
Year: 2007, Volume: 87, Issue: 2
... of a plant constituted by an electrical power system M.K.S.A units. and a gas discharge lamp; this latter, increasingly used in street lighting, remains a nonlinear load element. Various approaches The channel dimension (or average profile of are used to represent it, one is the approximation of the discharge represented by a hot ...
Year: 2007, Volume: 7, Issue: 1
... 1.51E-01 2.12E-01 Phase Phase Phase Phase Phase -1.79E+ 02 -1.56E+ 01 1.77E+ 02 -2.31E+ 01 1.75E+ 02 Table 3. Coefficients of Fourier series for load current iZ Harmonics Harmonics Harmonics Harmonics Harmonics 0 1 2 3 4 Amplitude Amplitude Amplitude Amplitude Amplitude 2.999 1.599 5.30E-03 1.92E-01 1.54E-03 Phase Phase Phase Phase Phase 0 -6.62E ...
Year: 2007, Volume: 7, Issue: 2
... . 203 – 209 (1990). [3] A. C. Williamson, "Measurement of rotor temperatures of a 500 MW turbine generator with unbalanced loading", Proc. IEE, vol. 8, pp. 795 – 803 (1976). [4] M. Iordache, N. Voicu ...
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