Question Bank
... (c) Reproducibility (d) Static error 21. The smallest measurable input change is called---------------(a) Resolution (b) threshold (c) dead zone (d) drift 22.--------- is defined as the difference between the largest and smallest reading of instrument (a) Span (b) Range (c) dead space (d) Resolution ...
... (c) Reproducibility (d) Static error 21. The smallest measurable input change is called---------------(a) Resolution (b) threshold (c) dead zone (d) drift 22.--------- is defined as the difference between the largest and smallest reading of instrument (a) Span (b) Range (c) dead space (d) Resolution ...
Trajectory Sensitivities to Assess Influence of Components and
... This paper applies the well-established concept of trajectory sensitivities to assessment of control actions across the transmission-level of the power system. Initial and final values of the sensitivities are taken to characterize both the immediate and long-term effect of control actions. Tap-chan ...
... This paper applies the well-established concept of trajectory sensitivities to assessment of control actions across the transmission-level of the power system. Initial and final values of the sensitivities are taken to characterize both the immediate and long-term effect of control actions. Tap-chan ...
Voltage-Controlled Oscillators and Frequency Dividers
... impedance to ground so as to maintain a more constant quality factor for oscillation. The tail current in Fig. 5.5(a) and (b) can be removed to accommodate lowsupply operation but at a cost of higher supply sensitivity. An approach preserving these merits while eliminating its noise contribution is ...
... impedance to ground so as to maintain a more constant quality factor for oscillation. The tail current in Fig. 5.5(a) and (b) can be removed to accommodate lowsupply operation but at a cost of higher supply sensitivity. An approach preserving these merits while eliminating its noise contribution is ...
BD8312HFN
... Timer latch system short-circuit protection circuit When DC/DC converter is 100% High Duty , the internal SCP circuit starts counting. The internal counter is in synch with OSC, the latch circuit is activated about 2.7 msec after the counter counts about 4000 oscillations to turn off DC/DC converter ...
... Timer latch system short-circuit protection circuit When DC/DC converter is 100% High Duty , the internal SCP circuit starts counting. The internal counter is in synch with OSC, the latch circuit is activated about 2.7 msec after the counter counts about 4000 oscillations to turn off DC/DC converter ...
a Dual Fractional-N/Integer-N Frequency Synthesizer ADF4252
... wireless receivers and transmitters. Both the RF and IF synthesizers consist of a low noise digital PFD (phase frequency detector), a precision charge pump, and a programmable reference divider. The RF synthesizer has a ⌺-⌬-based fractional interpolator that allows programmable fractional-N division ...
... wireless receivers and transmitters. Both the RF and IF synthesizers consist of a low noise digital PFD (phase frequency detector), a precision charge pump, and a programmable reference divider. The RF synthesizer has a ⌺-⌬-based fractional interpolator that allows programmable fractional-N division ...
variable speed drives and motors a gambica technical guide
... voltage drives as it provides limited accuracy and limited useful information. It is therefore little used by manufacturers who have developed their own procedures. Testing of an a.c. drive system must necessarily be undertaken by a direct method, and should be undertaken at the appropriate duty poi ...
... voltage drives as it provides limited accuracy and limited useful information. It is therefore little used by manufacturers who have developed their own procedures. Testing of an a.c. drive system must necessarily be undertaken by a direct method, and should be undertaken at the appropriate duty poi ...
OH3424982502
... A very large number of transformers are used in the electric power systems. These costly and critical devices provide the necessary voltage conversions to transfer power through the system. Internal faults in transformers can cause huge damages in a very short time, and in some cases the damages are ...
... A very large number of transformers are used in the electric power systems. These costly and critical devices provide the necessary voltage conversions to transfer power through the system. Internal faults in transformers can cause huge damages in a very short time, and in some cases the damages are ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... In recent years, there has been a huge increase in the demand for power due to rapid industrial growth, along with an increase in residential loads. As it is necessary to meet these increasing power demands, and since non-renewable energy resources such as fossil fuels are quickly being depleted, al ...
... In recent years, there has been a huge increase in the demand for power due to rapid industrial growth, along with an increase in residential loads. As it is necessary to meet these increasing power demands, and since non-renewable energy resources such as fossil fuels are quickly being depleted, al ...
Sérgio CRUZ 1,2 , Flávio GASPAR 2
... When the inertia of the load is very high, the speed oscillations of the motor will be very small, and that ellipse will tend to a circumference. On the other hand, for extremely low values of the inertia, the ellipse tends to degenerate into a straight line oriented along the second quadrant of th ...
... When the inertia of the load is very high, the speed oscillations of the motor will be very small, and that ellipse will tend to a circumference. On the other hand, for extremely low values of the inertia, the ellipse tends to degenerate into a straight line oriented along the second quadrant of th ...
this PDF file
... modules correspond to the estimated power of 20 kW. This means the radiator must cool approximately Pz = 800 W. We therefore chose a radiator with dimensions 125×300×135 mm with fans on both sides. The placement of the transistors is shown in Fig. 2. It was decided to connect the modules according t ...
... modules correspond to the estimated power of 20 kW. This means the radiator must cool approximately Pz = 800 W. We therefore chose a radiator with dimensions 125×300×135 mm with fans on both sides. The placement of the transistors is shown in Fig. 2. It was decided to connect the modules according t ...
Aalborg Universitet Wind Turbines using Harmonic State Space (HSS)
... frequency (h ∙ f ), where h is the harmonic number and the fo is the fundamental frequency concerned. Step6) The converted time domain waveforms can be compared with the nonlinear time domain simulation to verify the HSS model. Step7) If the main parameters are changed to test the dynamics, the HTF ...
... frequency (h ∙ f ), where h is the harmonic number and the fo is the fundamental frequency concerned. Step6) The converted time domain waveforms can be compared with the nonlinear time domain simulation to verify the HSS model. Step7) If the main parameters are changed to test the dynamics, the HTF ...
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.