57KB - NZQA
... A typical application for each type of motor is stated with reasons for the suitability of the choice. ...
... A typical application for each type of motor is stated with reasons for the suitability of the choice. ...
PE3426652670
... and other components that build up the power system. This is easily done in new installations but can be problematic when there is a need for higher short-circuit power in an existing system. In these cases, the installation of a fault current limiter could be an alternative to rebuilding the switch ...
... and other components that build up the power system. This is easily done in new installations but can be problematic when there is a need for higher short-circuit power in an existing system. In these cases, the installation of a fault current limiter could be an alternative to rebuilding the switch ...
Aalborg Universitet Distributed energy resources in grid interactive AC microgrids
... Grid interactive ac microgrids involve significantly lot of issues somewhat different than in conventional distribution networks. A number of power electronics interfaces, inherently without inertias, and the intentional or non-intentional islanding operation modes challenge the control design of a ...
... Grid interactive ac microgrids involve significantly lot of issues somewhat different than in conventional distribution networks. A number of power electronics interfaces, inherently without inertias, and the intentional or non-intentional islanding operation modes challenge the control design of a ...
Network Analyzer Basics
... – nonlinear: harmonics, intermodulation, compression, AMto-PM conversion ...
... – nonlinear: harmonics, intermodulation, compression, AMto-PM conversion ...
ECE 310 - Departments | Engineering at Illinois
... The simplest generator model, known as the classical model, treats the generator as a voltage source behind the direct-axis transient reactance; the voltage magnitude is fixed, but its angle changes according to the mechanical dynamics ...
... The simplest generator model, known as the classical model, treats the generator as a voltage source behind the direct-axis transient reactance; the voltage magnitude is fixed, but its angle changes according to the mechanical dynamics ...
... is varied in proportion to the amplitude of a sine wave evaluated at the centre of the same pulse. The distortion factor and lower order harmonics are reduced significantly. The gating signals are generated by comparing a sinusoidal reference signal with a triangular carrier wave of frequency Fc.The ...
BDTIC www.BDTIC.com/infineon W i r e l e s s ... S m a r t L E W I S
... The Automatic Frequency Control (AFC) can be used to decrease the used Channel Filters to the given theoretical occupied bandwidth of the transmitted signal. By doing this, the sensitivity of the receiver system which is defined by the front end noise figure and the used receive channel bandwidth ca ...
... The Automatic Frequency Control (AFC) can be used to decrease the used Channel Filters to the given theoretical occupied bandwidth of the transmitted signal. By doing this, the sensitivity of the receiver system which is defined by the front end noise figure and the used receive channel bandwidth ca ...
ULTRA SLIMPAK G478-0001 Frequency Input, Field Configurable Isolator
... to DC signal output within the ranges specified. Calibration utilizes ‘Touch-Cal’ technology in which the user simply applies the minimum and maximum input frequencies, and touches a recessed button to configure the corresponding minimum and maximum output range. The Ultra SlimPak housing allows ins ...
... to DC signal output within the ranges specified. Calibration utilizes ‘Touch-Cal’ technology in which the user simply applies the minimum and maximum input frequencies, and touches a recessed button to configure the corresponding minimum and maximum output range. The Ultra SlimPak housing allows ins ...
File
... 2. Draw the characteristics of torque and power limitations of dc drives operating with combined armature of field control. 3. What is meant by continuous and discontinuous operations? 4. What is the difference between continuous and discontinuous conduction modes? 5. Write the conditions under whic ...
... 2. Draw the characteristics of torque and power limitations of dc drives operating with combined armature of field control. 3. What is meant by continuous and discontinuous operations? 4. What is the difference between continuous and discontinuous conduction modes? 5. Write the conditions under whic ...
References - Carollo Engineers
... too large, there is a potential for the capacitor current to be equal to the magnetizing current drawn by the induction motor either during operation or during the starting or stopping of the motor. This creates a resonant condition and an excessive voltage at the terminals of the motor [1]. This is ...
... too large, there is a potential for the capacitor current to be equal to the magnetizing current drawn by the induction motor either during operation or during the starting or stopping of the motor. This creates a resonant condition and an excessive voltage at the terminals of the motor [1]. This is ...
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.