Lecture VI - AC Machines II
... efficiency. Therefore induction machines are usually referred to as induction motors. ...
... efficiency. Therefore induction machines are usually referred to as induction motors. ...
DS1088C Fixed-Frequency EconoOscillator™ General Description Features
... Note 3: This is the change in output frequency due to changes in voltage at TA = +25°C. Note 4: Guaranteed by design. Note 5: This is the change in output frequency due to changes in temperature from the +25°C frequency at VCC = 3.3V. Note 6: This indicates the time elapsed between power-up and ...
... Note 3: This is the change in output frequency due to changes in voltage at TA = +25°C. Note 4: Guaranteed by design. Note 5: This is the change in output frequency due to changes in temperature from the +25°C frequency at VCC = 3.3V. Note 6: This indicates the time elapsed between power-up and ...
Power Quality Improvement by Shunt Active Performance Filters
... non-linear appliances [8] are some kind of pollution of the supply networks [7].To these non-linear loads belong: • controlled actuations, motor starters • electric lights • PCs, UPS and other electric devices All of these devices are generating undesirable harmonic currents to the supply network. C ...
... non-linear appliances [8] are some kind of pollution of the supply networks [7].To these non-linear loads belong: • controlled actuations, motor starters • electric lights • PCs, UPS and other electric devices All of these devices are generating undesirable harmonic currents to the supply network. C ...
Quality factor of components and approximate analysis of high
... inductor modeled by a pure inductance L. In the audio frequency range, QL may vary from 5 to 20, whereas in the radio frequency range, it may reach above 100 for practical circuits. Although RS also varies with frequency (due to the so-called skin effect), we shall, at the level of this text, treat ...
... inductor modeled by a pure inductance L. In the audio frequency range, QL may vary from 5 to 20, whereas in the radio frequency range, it may reach above 100 for practical circuits. Although RS also varies with frequency (due to the so-called skin effect), we shall, at the level of this text, treat ...
Stresa, Italy, 25-27 April 2007
... loss of mass. To avoid this inconvenience, we propose to etch small depth of silicon present in between the top electrodes. This step is called as Backside DRIE. Fig. 8 shows a side view of modified design. Fig. 9 shows a variation in Cmax and Cmin as a function of backside DRIE depth, based on FEM ...
... loss of mass. To avoid this inconvenience, we propose to etch small depth of silicon present in between the top electrodes. This step is called as Backside DRIE. Fig. 8 shows a side view of modified design. Fig. 9 shows a variation in Cmax and Cmin as a function of backside DRIE depth, based on FEM ...
Liebert NXc UPS; 30 - 40kVA; 380/400/415V Detailed Specification
... Hz/s Setting range: 0.1 ~ o.6 (UPS module), 0.6 (parallel system) rate of synchronisation frequency) Note: 1.. Fact y set to 380V. 400V or 415V selectable by service engineer. 2.. Fact y set to 50Hz. 60Hz selectable by service engineer. Note that the system frequency can be changed only when the UPS ...
... Hz/s Setting range: 0.1 ~ o.6 (UPS module), 0.6 (parallel system) rate of synchronisation frequency) Note: 1.. Fact y set to 380V. 400V or 415V selectable by service engineer. 2.. Fact y set to 50Hz. 60Hz selectable by service engineer. Note that the system frequency can be changed only when the UPS ...
TPS54160 60-V, Step-Down LED Driver Design Guide Application Report ..............................................................
... The TPS54160 is normally used as a buck voltage regulator. In these applications, a lower dc voltage is derived from a higher input voltage. The output voltage is regulated by the internal current mode control circuitry to maintain a constant voltage over varying line and load conditions. The TPS541 ...
... The TPS54160 is normally used as a buck voltage regulator. In these applications, a lower dc voltage is derived from a higher input voltage. The output voltage is regulated by the internal current mode control circuitry to maintain a constant voltage over varying line and load conditions. The TPS541 ...
(Induction) Machines
... One of energy can be obtained from the other form with the help of converters. Converters that are used to continuously translate electrical input to mechanical output or vice versa are called electric machines. The process of translation is known as electromechanical energy conversion. ...
... One of energy can be obtained from the other form with the help of converters. Converters that are used to continuously translate electrical input to mechanical output or vice versa are called electric machines. The process of translation is known as electromechanical energy conversion. ...
Utility frequency
The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency of the oscillations of alternating current (AC) in an electric power grid transmitted from a power plant to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains power around the world.During the development of commercial electric power systems in the late 19th and early 20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one over the other and no apparent desire for complete worldwide standardization.Unless specified by the manufacturer to operate on both 50 and 60 Hz, appliances may not operate efficiently or even safely if used on anything other than the intended frequency.