Simulation and Analysis of Faults in High Voltage DC
... terminal grid but as far as the protection system is concerned, it is still lagging behind the AC systems, without rated protection devices and logic. By employing double thyristor switches, the diode freewheeling effect can be eliminated and the DC:link fault can be freely decayed [4]. This clears ...
... terminal grid but as far as the protection system is concerned, it is still lagging behind the AC systems, without rated protection devices and logic. By employing double thyristor switches, the diode freewheeling effect can be eliminated and the DC:link fault can be freely decayed [4]. This clears ...
LOVOS-5 LOVOS-10 Low voltage surge arrester
... As results from statistical data (Fig. above) 90% of lightning currents have values not greater than 60 kA. In the overhead low voltage network a lightning stroke in the line usually leads to shock of all three phases due to small distances between conductors. Assuming that the lightning current flo ...
... As results from statistical data (Fig. above) 90% of lightning currents have values not greater than 60 kA. In the overhead low voltage network a lightning stroke in the line usually leads to shock of all three phases due to small distances between conductors. Assuming that the lightning current flo ...
TP4056
... The TP4056 is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its SOP package and low external component count make the TP4056 ideally suited for portable applications. Furthermore, the TP4056 can work within USB and wall adapter. No blocking diode ...
... The TP4056 is a complete constant-current/constant-voltage linear charger for single cell lithium-ion batteries. Its SOP package and low external component count make the TP4056 ideally suited for portable applications. Furthermore, the TP4056 can work within USB and wall adapter. No blocking diode ...
SAMPLE Solar, Wind, or Storage IR (Inverter Based Generators)
... Please attach generator reactive capability curves. ...
... Please attach generator reactive capability curves. ...
UJT
... • UJT consists of a block of lightly-doped (high resistance) nmaterial with a p-material grown into its side. It is often used as a trigger device for SCRs and triacs. Its characteristics make it very useful in many industrial circuits, such as timers, oscillators, waveform generators and gate contr ...
... • UJT consists of a block of lightly-doped (high resistance) nmaterial with a p-material grown into its side. It is often used as a trigger device for SCRs and triacs. Its characteristics make it very useful in many industrial circuits, such as timers, oscillators, waveform generators and gate contr ...
generic high voltage power supply for electrical propulsion
... necessary. This leads to a minimum of switching elements at the power path and increases efficiency. Additionally, the large (due to high ac currents) resonance capacitor is not required. Instead, the high voltage transformer is directly coupled. Although this method provides no inherent transformer ...
... necessary. This leads to a minimum of switching elements at the power path and increases efficiency. Additionally, the large (due to high ac currents) resonance capacitor is not required. Instead, the high voltage transformer is directly coupled. Although this method provides no inherent transformer ...
Series/Parallel worksheet 2
... resistor connected in series. 2. Calculate the total resistance for ten 120 ohm resistors in series. 3. A string of fifty 15 ohm Christmas tree lights are connected in series. One burns out, they all burn out. Calculate the total resistance. 4. Calculate the total resistance for two 180 ohm resistor ...
... resistor connected in series. 2. Calculate the total resistance for ten 120 ohm resistors in series. 3. A string of fifty 15 ohm Christmas tree lights are connected in series. One burns out, they all burn out. Calculate the total resistance. 4. Calculate the total resistance for two 180 ohm resistor ...
High voltage power supplies t in electrostatic applications
... usually in the form of rectification and filtering in ac sources, and additional filtering in dc sources. Overload protection, EMI, EMC and monitoring circuits can also be found. The output of the input filter is typically a dc voltage source. This dc voltage provides the energy source for the inver ...
... usually in the form of rectification and filtering in ac sources, and additional filtering in dc sources. Overload protection, EMI, EMC and monitoring circuits can also be found. The output of the input filter is typically a dc voltage source. This dc voltage provides the energy source for the inver ...
Rectifier Circuit Current Ratios
... speed fuses. These requirements are generally more stringent than the fuse requirements for typical 60 cycle AC power distribution systems in commercial buildings or industrial plants. The diodes or SCRs are at the heart of the solid-state power equipment. These semiconductor devices have relatively ...
... speed fuses. These requirements are generally more stringent than the fuse requirements for typical 60 cycle AC power distribution systems in commercial buildings or industrial plants. The diodes or SCRs are at the heart of the solid-state power equipment. These semiconductor devices have relatively ...
dc glow discharge in atmospheric pressure air
... are between 0.1 and 10 A/cm2 and the estimated electron densities ne are in the range of 1012-1013 cm-3. The measured j is lower than the typical current density of arcs. Moreover, the measured cathode fall is typical of glow discharges. The stable operation of this discharge is supposedly provided ...
... are between 0.1 and 10 A/cm2 and the estimated electron densities ne are in the range of 1012-1013 cm-3. The measured j is lower than the typical current density of arcs. Moreover, the measured cathode fall is typical of glow discharges. The stable operation of this discharge is supposedly provided ...
14 i Energy Meters (kWh Meters)
... as DC systems. The panel mounting kWh meters are accurate to class 1 to IEC1036 and AC models have a user selectable CT ratio through a rotary switch accessible from a removable cover on the meter. The meters are housed in a compact DIN96 enclosure measuring only 61mm in depth and are available comb ...
... as DC systems. The panel mounting kWh meters are accurate to class 1 to IEC1036 and AC models have a user selectable CT ratio through a rotary switch accessible from a removable cover on the meter. The meters are housed in a compact DIN96 enclosure measuring only 61mm in depth and are available comb ...
2SC4134 数据资料DataSheet下载
... customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures tha ...
... customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer' s products or equipment. SANYO Semiconductor Co.,Ltd. assumes no responsibility for equipment failures tha ...
the use of simulation to comply with the
... for the modeling and simulation of power electronics and drive systems. Use is made of a multilevel modRectifier modeled in a circuit model. el, which includes a Figure 1: circuit model for the power converter, a block-diagram model for the analog controllers or components and a modeling language fo ...
... for the modeling and simulation of power electronics and drive systems. Use is made of a multilevel modRectifier modeled in a circuit model. el, which includes a Figure 1: circuit model for the power converter, a block-diagram model for the analog controllers or components and a modeling language fo ...
Inductance in an AC Circuit
... REACTANCE VS RESISTANCE As current flows through a resistor it interacts with the material of the resistor and experiences an opposition to its flow known as resistance. This is expressed by Ohm’s Law. V IR ...
... REACTANCE VS RESISTANCE As current flows through a resistor it interacts with the material of the resistor and experiences an opposition to its flow known as resistance. This is expressed by Ohm’s Law. V IR ...
Part I - Indian Navy
... current from one voltage level to a different voltage level.Electrical machines are divided into three main categories based on how they convert energy. Generators convert mechanical energy to electrical energy. Motors convert electrical energy to mechanical energy. Transformers change the voltage o ...
... current from one voltage level to a different voltage level.Electrical machines are divided into three main categories based on how they convert energy. Generators convert mechanical energy to electrical energy. Motors convert electrical energy to mechanical energy. Transformers change the voltage o ...
Comparison of Three Phase Voltage Back to Back Converter and
... Thomas Friedli, Johann W. Kolar, Jose Rodriguez and Patrick W. Wheeler, “Comparative Evaluation of Three-Phase AC–AC Matrix Converter and Voltage DC-Link Back-to-Back Converter Systems”, IEEE Transactions on Industrial Electronics, VOL. 59, NO. 12, 2012 Jose Rodriguez, Marco Rivera, Johan W. Kolar a ...
... Thomas Friedli, Johann W. Kolar, Jose Rodriguez and Patrick W. Wheeler, “Comparative Evaluation of Three-Phase AC–AC Matrix Converter and Voltage DC-Link Back-to-Back Converter Systems”, IEEE Transactions on Industrial Electronics, VOL. 59, NO. 12, 2012 Jose Rodriguez, Marco Rivera, Johan W. Kolar a ...
PowerPad Model 8333 Data Sheet
... Create and store a complete library of configurations that can be uploaded as needed Zoom in and out and pan through sections of the graph to analyze the data Download, display and analyze recorded data Display waveforms, trend graphs, harmonic spectrums, text summaries, transients, event l ...
... Create and store a complete library of configurations that can be uploaded as needed Zoom in and out and pan through sections of the graph to analyze the data Download, display and analyze recorded data Display waveforms, trend graphs, harmonic spectrums, text summaries, transients, event l ...
Aalborg Universitet Single-Phase Shunt Active Power Filters Under Adverse Grid Conditions
... presence of distortion in the grid voltage results in errors in the reference current generation. III. S UGGESTED RCG T ECHNIQUE Fig. 2(a) illustrates the basic scheme of the suggested RCG technique, in which the SOGI structures are employed to generate the filtered in-phase and quadrature-phase ve ...
... presence of distortion in the grid voltage results in errors in the reference current generation. III. S UGGESTED RCG T ECHNIQUE Fig. 2(a) illustrates the basic scheme of the suggested RCG technique, in which the SOGI structures are employed to generate the filtered in-phase and quadrature-phase ve ...
Mercury-arc valve
A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.