Fuel Cell Specification Notes
... (0.5kW to 15kW) 1.0 Scope. This specification covers the technical requirements for general purpose military mobile power sources from 0.5kW to 15kW, with 50/60 Hz AC & DC outputs. Configurations include skid or trailer mounted systems; the power sources are fueled with JP-8 or DoD diesel fuels used ...
... (0.5kW to 15kW) 1.0 Scope. This specification covers the technical requirements for general purpose military mobile power sources from 0.5kW to 15kW, with 50/60 Hz AC & DC outputs. Configurations include skid or trailer mounted systems; the power sources are fueled with JP-8 or DoD diesel fuels used ...
Principles of Doubly-Fed Induction Generators (DFIG)
... Doubly-fed induction generator operation As seen in Exercise 2, a three-phase wound-rotor induction machine can be set up as a doubly-fed induction motor. In this case, the machine operates like a synchronous motor whose synchronous speed (i.e., the speed at which the motor of the ac currents shaft ...
... Doubly-fed induction generator operation As seen in Exercise 2, a three-phase wound-rotor induction machine can be set up as a doubly-fed induction motor. In this case, the machine operates like a synchronous motor whose synchronous speed (i.e., the speed at which the motor of the ac currents shaft ...
HMC307QS16GE Datasheet
... Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. ...
... Any combination of the above states will provide an attenuation approximately equal to the sum of the bits selected. ...
- IEEE PES Resource Center
... local grid codes have similar requirements. • The Excitation System SC will report on our many recent activities related to testing and modeling of excitation systems, associated controllers and limits to support meeting these requirements ...
... local grid codes have similar requirements. • The Excitation System SC will report on our many recent activities related to testing and modeling of excitation systems, associated controllers and limits to support meeting these requirements ...
MAX2870 - Maxim Part Number Search
... loop (PLL) with integrated voltage control oscillators (VCOs) capable of operating in both integer-N and fractional-N modes. When combined with an external reference oscillator and loop filter, the MAX2870 is a high-performance frequency synthesizer capable of synthesizing frequencies from 23.5MHz t ...
... loop (PLL) with integrated voltage control oscillators (VCOs) capable of operating in both integer-N and fractional-N modes. When combined with an external reference oscillator and loop filter, the MAX2870 is a high-performance frequency synthesizer capable of synthesizing frequencies from 23.5MHz t ...
Paralleling Dissimilar Generators
... arrangement, the voltage and frequency outputs of the generator sets are forced to exactly the same values when they are connected to the same bus. Consequently, generator set control systems cannot simply monitor bus voltage and speed as a reference for maintaining equal output levels, as they do w ...
... arrangement, the voltage and frequency outputs of the generator sets are forced to exactly the same values when they are connected to the same bus. Consequently, generator set control systems cannot simply monitor bus voltage and speed as a reference for maintaining equal output levels, as they do w ...
ECE 431 Electric Machines Lab Manual
... Today almost half of all energy worldwide is delivered in the form of electricity. Globally, about 2/3 of all electrical energy is delivered to electric machinery, and nearly 100% is produced by machines. It is well known that growth in electrical energy production has been closely correlated with e ...
... Today almost half of all energy worldwide is delivered in the form of electricity. Globally, about 2/3 of all electrical energy is delivered to electric machinery, and nearly 100% is produced by machines. It is well known that growth in electrical energy production has been closely correlated with e ...
Technical performance requirements for the connection of large
... Clause S5.2.5.2 of the NER requires the quality of the electricity generated by a Generator at the connection point to not have any detrimental effects on other customers. The Generator must not produce at the connection point voltage fluctuation, harmonic voltage distortion and voltage unbalance gr ...
... Clause S5.2.5.2 of the NER requires the quality of the electricity generated by a Generator at the connection point to not have any detrimental effects on other customers. The Generator must not produce at the connection point voltage fluctuation, harmonic voltage distortion and voltage unbalance gr ...
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.