Enhancement of THD in HVDC System using Shunt Active Power
... used filter configuration in industrial process. It is connected in parallel to the main power circuit as shown in Fig.2.1. The concept of the shunt active power filter is based on harmonic cancellation through the act of injecting equal and opposite harmonic currents into the supply line by means o ...
... used filter configuration in industrial process. It is connected in parallel to the main power circuit as shown in Fig.2.1. The concept of the shunt active power filter is based on harmonic cancellation through the act of injecting equal and opposite harmonic currents into the supply line by means o ...
CMK2000, CMK3000 MagnetoResistive Current
... compensate errors that are caused by the skin effect in the frequency response. In this configuration the singleended filtered output signal is available at TP8. By closing J2 and opening J1 an optional customer specific filter can be used to adapt the filter settings to the customers application an ...
... compensate errors that are caused by the skin effect in the frequency response. In this configuration the singleended filtered output signal is available at TP8. By closing J2 and opening J1 an optional customer specific filter can be used to adapt the filter settings to the customers application an ...
AN2118
... and provides some application hints. The device data sheet is an essential complement to this application note, providing important reference information that will simplify understanding of the content. ...
... and provides some application hints. The device data sheet is an essential complement to this application note, providing important reference information that will simplify understanding of the content. ...
B o o s t C o n... TDA4863 Power Factor Controller IC for High Power Factor
... regulated within an adequate time. Fast output changes occur during initial start-up, sudden load removal, or output arcing. While the integrator´s differential input voltage remains zero during this fast changes a peak current is flowing through the external capacitor into pin VAOUT. If this curren ...
... regulated within an adequate time. Fast output changes occur during initial start-up, sudden load removal, or output arcing. While the integrator´s differential input voltage remains zero during this fast changes a peak current is flowing through the external capacitor into pin VAOUT. If this curren ...
Low-Voltage, Low-Power and High Gain CMOS OTA
... gain-bandwidth product, and low power ampli ers [1, 2] demands innovative circuit design techniques and advances in integrated circuits process technology. CMOS technology becomes attractive even for some applications that were traditionally built with bipolar transistors. As MOS channel length decr ...
... gain-bandwidth product, and low power ampli ers [1, 2] demands innovative circuit design techniques and advances in integrated circuits process technology. CMOS technology becomes attractive even for some applications that were traditionally built with bipolar transistors. As MOS channel length decr ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... other coolant). Heatsink selection depends on the cooling method. The heatsinks carry the thyristor current; therefore they are selected from good electrical and heat conducting materials, usually aluminum or copper. 1.5.5 Thermal Considerations Theoretically, a TCR produces reactive power only. How ...
... other coolant). Heatsink selection depends on the cooling method. The heatsinks carry the thyristor current; therefore they are selected from good electrical and heat conducting materials, usually aluminum or copper. 1.5.5 Thermal Considerations Theoretically, a TCR produces reactive power only. How ...
Voltmeters and ammeters are used to measure voltage and current
... The two crucial characteristics of any galvanometer are itsresistance and its current sensitivity. Current sensitivity is the current that gives a full-scale deflection of the galvanometer's needle -- in other words, the maximum current that the instrument can measure. For example, a galvanometer w ...
... The two crucial characteristics of any galvanometer are itsresistance and its current sensitivity. Current sensitivity is the current that gives a full-scale deflection of the galvanometer's needle -- in other words, the maximum current that the instrument can measure. For example, a galvanometer w ...
Single-Phase to Three-Phases Sinusoidal Waveform
... the rms of line voltage for driving motor and spindle speed is smooth increasing follow. Fig.9 that show the reverse operation when switch S1 change from start to stop position. The magnitude of va* and modulation percentage of vab are smooth decreasing. That mean the rms of line voltage for driving ...
... the rms of line voltage for driving motor and spindle speed is smooth increasing follow. Fig.9 that show the reverse operation when switch S1 change from start to stop position. The magnitude of va* and modulation percentage of vab are smooth decreasing. That mean the rms of line voltage for driving ...
Difet OPA606 Wide-Bandwidth OPERATIONAL AMPLIFIER
... As in any situation where high impedances are involved, careful shielding is required to reduce “hum” pickup in input leads. If large feedback resistors are used, they should also be shielded along with the external input circuitry. Leakage currents across printed circuit boards can easily exceed th ...
... As in any situation where high impedances are involved, careful shielding is required to reduce “hum” pickup in input leads. If large feedback resistors are used, they should also be shielded along with the external input circuitry. Leakage currents across printed circuit boards can easily exceed th ...
Power Factor Correction and Harmonics
... Transformer windings suffer increased I2R self-heating (often called “copper losses”) due to the presence of harmonic currents plus their increased resistance at higher frequencies due to the “skin effect”. Also, the harmonic currents in neutral conductors in transformers suffer from harmonic build- ...
... Transformer windings suffer increased I2R self-heating (often called “copper losses”) due to the presence of harmonic currents plus their increased resistance at higher frequencies due to the “skin effect”. Also, the harmonic currents in neutral conductors in transformers suffer from harmonic build- ...
Overview - Yaskawa
... Yaskawa iQpump1000 and iQpump Micro variable frequency drives (VFD) operate using three-phase incoming power and are also suitable for use on single-phase power with appropriate considerations. Single-phase power considerations include the proper selection of drive model, input reactors, wiring and ...
... Yaskawa iQpump1000 and iQpump Micro variable frequency drives (VFD) operate using three-phase incoming power and are also suitable for use on single-phase power with appropriate considerations. Single-phase power considerations include the proper selection of drive model, input reactors, wiring and ...
ground fault neutralizer
... Injection of voltage into the transformer neutral using this system, also allows control of the phase-ground voltages under normal operation. This in turn allows partial discharge (PD) activity in the cables and connected plant to be incepted and extinguished through voltage increase and reduction o ...
... Injection of voltage into the transformer neutral using this system, also allows control of the phase-ground voltages under normal operation. This in turn allows partial discharge (PD) activity in the cables and connected plant to be incepted and extinguished through voltage increase and reduction o ...
Parallel operation of step transformers
... network, where the direction of the circulating current is determined by the sign of the difference UA0 – UB0 of the off-load voltages. With UA0 > UB0 for the currents ITA and ITB flowing in the transformers TA and TB, the following ...
... network, where the direction of the circulating current is determined by the sign of the difference UA0 – UB0 of the off-load voltages. With UA0 > UB0 for the currents ITA and ITB flowing in the transformers TA and TB, the following ...
power metal strip® resistors
... use brushless DC motors. A current sense resistor is used to control the peak value of the motor winding current (load current). This Is an application that requires low-inductance and highcurrent capabilities. See Figure A. Current sensing resistors are also used in the feedback circuit as replacem ...
... use brushless DC motors. A current sense resistor is used to control the peak value of the motor winding current (load current). This Is an application that requires low-inductance and highcurrent capabilities. See Figure A. Current sensing resistors are also used in the feedback circuit as replacem ...
E-2 CATHODIC PROTECTION
... Galvanic Series - A list of metals and alloys arranged in order of their potentials as measured in relation to a reference electrode when immersed in seawater. The table of potentials is arranged with the anodic or least noble metals at one end, and the cathodic or most noble metals at the other (se ...
... Galvanic Series - A list of metals and alloys arranged in order of their potentials as measured in relation to a reference electrode when immersed in seawater. The table of potentials is arranged with the anodic or least noble metals at one end, and the cathodic or most noble metals at the other (se ...
1.1A, Single-Input 5-V Power Supply IC for
... The bq25046 contains a thermal regulation loop that monitors the die temperature continuously. If the temperature exceeds TJ(REG), the device automatically reduces the input current limit to prevent the die temperature from increasing further. In some cases, the die temperature continues to rise des ...
... The bq25046 contains a thermal regulation loop that monitors the die temperature continuously. If the temperature exceeds TJ(REG), the device automatically reduces the input current limit to prevent the die temperature from increasing further. In some cases, the die temperature continues to rise des ...
Introduction
... The Electrical System Knowing how the electricity gets from the generating station to your service entrance gives you a better sense of "the big picture" in your electrical work. ...
... The Electrical System Knowing how the electricity gets from the generating station to your service entrance gives you a better sense of "the big picture" in your electrical work. ...
Designing 4 to 20 mA Current Loops
... maximum resistance and maximum signal current of 20 mA, and calculated again at the minimum resistance and minimum signal current of 4 mA. The maximum resistance of the wire (60°C) is 59.77Ω. Multiply this by the maximum signal current of 20 mA and the voltage drop of the wire equals: 59.77Ω x 0.02A ...
... maximum resistance and maximum signal current of 20 mA, and calculated again at the minimum resistance and minimum signal current of 4 mA. The maximum resistance of the wire (60°C) is 59.77Ω. Multiply this by the maximum signal current of 20 mA and the voltage drop of the wire equals: 59.77Ω x 0.02A ...
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.