STUDY OF ELECTRICAL AND CHEMICAL PROPERTIES OF
... Transformer is a device in static condition. The transformer transforms electrical energy from one circuit to another and important in the power system for voltage level conversion. Transformer failure might cause by several conditions such as an overload condition and most failure were caused by an ...
... Transformer is a device in static condition. The transformer transforms electrical energy from one circuit to another and important in the power system for voltage level conversion. Transformer failure might cause by several conditions such as an overload condition and most failure were caused by an ...
19. Circuit Breakers
... is dissipated in the arc. Therefore, it is employed only in d.c. circuit breakers and low-capacity a.c. circuit breakers. The resistance of the arc may be increased by : (i) Lengthening the arc. The resistance of the arc is directly proportional to its length. The length of the arc can be increased ...
... is dissipated in the arc. Therefore, it is employed only in d.c. circuit breakers and low-capacity a.c. circuit breakers. The resistance of the arc may be increased by : (i) Lengthening the arc. The resistance of the arc is directly proportional to its length. The length of the arc can be increased ...
A new Auxiliary Converter Topology with SiC
... Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download a ...
... Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download a ...
Electrical Machines: II. Synchronous Generators
... generators. They supply the electric power used by all sectors of modern societies: industrial, commercial, agricultural, and domestic. Synchronous generators usually operate together (or in parallel), forming a large power system supplying electrical energy to the loads or consumers. Synchronou ...
... generators. They supply the electric power used by all sectors of modern societies: industrial, commercial, agricultural, and domestic. Synchronous generators usually operate together (or in parallel), forming a large power system supplying electrical energy to the loads or consumers. Synchronou ...
LTC1983-3/LTC1983-5
... 3V version) from VOUT during normal operation. During shutdown, the resistor divider is disconnected from the output and the part draws only leakage current from the output. During no-load conditions, applying a 1Hz to 100Hz, 2% to 5% duty cycle signal to the SHDN pin ensures that the circuit of Fig ...
... 3V version) from VOUT during normal operation. During shutdown, the resistor divider is disconnected from the output and the part draws only leakage current from the output. During no-load conditions, applying a 1Hz to 100Hz, 2% to 5% duty cycle signal to the SHDN pin ensures that the circuit of Fig ...
A review of voltage dip mitigation techniques with distributed
... voltage during the dip. The work of Martinez-Velasco et al. [22], and some other researchers have shown how to utilize DG to mitigate the problem of voltage dips in an electrical power system. Besides the DG schemes, consumers might use their own equipment for ...
... voltage during the dip. The work of Martinez-Velasco et al. [22], and some other researchers have shown how to utilize DG to mitigate the problem of voltage dips in an electrical power system. Besides the DG schemes, consumers might use their own equipment for ...
LTC3405A-1.5/LTC3405A-1.8 - 1.5V, 1.8V, 1.5MHz, 300mA
... This formula has a maximum at VIN = 2VOUT, where IRMS = IOUT/2. This simple worst-case condition is commonly used for design because even significant deviations do not offer much relief. Note that the capacitor manufacturer’s ripple current ratings are often based on 2000 hours of life. This makes i ...
... This formula has a maximum at VIN = 2VOUT, where IRMS = IOUT/2. This simple worst-case condition is commonly used for design because even significant deviations do not offer much relief. Note that the capacitor manufacturer’s ripple current ratings are often based on 2000 hours of life. This makes i ...
Lab Manual Power Electronics (EE460)
... current and improves the input power factor. The output voltage contains harmonics. An output filter is normally used to obtain a smooth DC output voltage. The load inductance L acts as the output filter also. Also, the input current contains harmonics. An input filter is normally used to block harm ...
... current and improves the input power factor. The output voltage contains harmonics. An output filter is normally used to obtain a smooth DC output voltage. The load inductance L acts as the output filter also. Also, the input current contains harmonics. An input filter is normally used to block harm ...
Mitigation and Analysis of Very Fast Transient over
... three phases i.e. separate chambers were provided for each functional component such as circuit breakers, current transformers etc., of each phase. However, after gaining sufficient service experience and ability to maintain dielectric integrity three phases in one or phase integrated modules are no ...
... three phases i.e. separate chambers were provided for each functional component such as circuit breakers, current transformers etc., of each phase. However, after gaining sufficient service experience and ability to maintain dielectric integrity three phases in one or phase integrated modules are no ...
Application Information
... 11.0 V, the Bias Assist function is activated. While the Bias Assist function is operating, the decrease of the VCC voltage is suppressed by a supplementary current from the Startup circuit. By the Bias Assist function, the use of a small value C2 capacitor is allowed, resulting in improved response ...
... 11.0 V, the Bias Assist function is activated. While the Bias Assist function is operating, the decrease of the VCC voltage is suppressed by a supplementary current from the Startup circuit. By the Bias Assist function, the use of a small value C2 capacitor is allowed, resulting in improved response ...
Overvoltages - protection
... Hence , the refraction coefficients for voltage and current waves for open ended line respectively are: Dr M A Panneerselvam, Professor, Anna University ...
... Hence , the refraction coefficients for voltage and current waves for open ended line respectively are: Dr M A Panneerselvam, Professor, Anna University ...
MAX17003A/MAX17004A High-Efficiency, Quad-Output, Main Power- Supply Controllers for Notebook Computers General Description
... switch-mode, power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixedfrequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40 ...
... switch-mode, power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixedfrequency operation with optimal interleaving minimizes input ripple current from the lowest input voltages up to the 26V maximum input. Optimal 40 ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""