Shunt Active Power Filter for Harmonic Mitigation by
... the harmonic current distortion on distribution systems. They have many negative effects on power system equipment and point of common coupling, such as additional losses in underground cables, transformers and electric machines, operation of the protection systems, over voltage and shunt capacitor, ...
... the harmonic current distortion on distribution systems. They have many negative effects on power system equipment and point of common coupling, such as additional losses in underground cables, transformers and electric machines, operation of the protection systems, over voltage and shunt capacitor, ...
AP3983E - Diodes Incorporated
... When the power switch is turned on, a turn-on spike on the output pulse rising edge will occur on the sense-resistor. To avoid false termination of the switching pulse, a typical 500ns leading edge blanking is built in. During this blanking period, the current sense comparator is disabled and the ga ...
... When the power switch is turned on, a turn-on spike on the output pulse rising edge will occur on the sense-resistor. To avoid false termination of the switching pulse, a typical 500ns leading edge blanking is built in. During this blanking period, the current sense comparator is disabled and the ga ...
VACUUM/PRESSURE STATION
... diaphragm and the unique head cavity of the pump are designed to provide extended diaphragm life by minimizing stress, wear and heat buildup. This has been done while ensuring and optimizing pressure and vacuum characteristics. The brushless pump motor is totally enclosed, thermally protected and ha ...
... diaphragm and the unique head cavity of the pump are designed to provide extended diaphragm life by minimizing stress, wear and heat buildup. This has been done while ensuring and optimizing pressure and vacuum characteristics. The brushless pump motor is totally enclosed, thermally protected and ha ...
Document
... No low frequency component exists in the waveform transmitted by transformer. A compact high frequency transformer is allowed for the transmission. The operation frequency of the two switches in the secondary side of the transformer is low. Thus leads to low switching loss and high efficiency. Low d ...
... No low frequency component exists in the waveform transmitted by transformer. A compact high frequency transformer is allowed for the transmission. The operation frequency of the two switches in the secondary side of the transformer is low. Thus leads to low switching loss and high efficiency. Low d ...
AND8019/D Offline Converter Provides 5.0 Volt, 1.0 Amp
... voltmeter. The output of the meter will be fed into the input connector on the board. The polarity is not important as this converter has an isolated output. Please keep in mind that the input side of this circuit is hot – including the ground. The output connector should be connected to an ammeter ...
... voltmeter. The output of the meter will be fed into the input connector on the board. The polarity is not important as this converter has an isolated output. Please keep in mind that the input side of this circuit is hot – including the ground. The output connector should be connected to an ammeter ...
Application Note AN1304 - Low Leakage
... of around 91 μA. Thus, two supplies used in parallel would have a combined leakage of around 180 μA at 230 V, less than the medical standard limit of 300 μA. ...
... of around 91 μA. Thus, two supplies used in parallel would have a combined leakage of around 180 μA at 230 V, less than the medical standard limit of 300 μA. ...
Preventing Component Circuit Damage from Above Range Current
... Conductive carbon chains embedded in plastic in the Multifuse® design create an environment of low impedance - 3 milliohms to 8 ohms. The proximity of the carbon chains in this crystalline structure provides for easy current flow and the component offers low resistance at operating current. As is co ...
... Conductive carbon chains embedded in plastic in the Multifuse® design create an environment of low impedance - 3 milliohms to 8 ohms. The proximity of the carbon chains in this crystalline structure provides for easy current flow and the component offers low resistance at operating current. As is co ...
1200V IGBT4 -High Power- Optimized Characteristics for High Current Modules M. Bäßler
... High Power comes with a kind of EmCon4 which is also optimized for extreme soft behaviour. Therefore the IGBT can turn on much faster. Taking benefit from the diode softness the turnon losses may be reduced by up to 20%. III. Conclusion: ...
... High Power comes with a kind of EmCon4 which is also optimized for extreme soft behaviour. Therefore the IGBT can turn on much faster. Taking benefit from the diode softness the turnon losses may be reduced by up to 20%. III. Conclusion: ...
Neptune Branch Unit - APL
... 1. Shore station voltage is positive to isolate all loads (is +voltage really necessary?) 2. S4 is closed 3. Circuit could be energized from either end 4. Voltage across Z1 or Z2 is the power supply for the controller 5. S5 or S6 will close S1 or S2 6. Voltage across Z3 opens S4 after a delay 7. S1 ...
... 1. Shore station voltage is positive to isolate all loads (is +voltage really necessary?) 2. S4 is closed 3. Circuit could be energized from either end 4. Voltage across Z1 or Z2 is the power supply for the controller 5. S5 or S6 will close S1 or S2 6. Voltage across Z3 opens S4 after a delay 7. S1 ...
Aalborg Universitet Transformers in series
... The system includes Lars Peter’s load and a virtual load that corresponds to a neighbour transformer. Both loads are 3-phase loads, which can be unbalanced to generated return currents. The leakage currents are simulated by considering a connection between one phase and the ground throughout a 10kΩ ...
... The system includes Lars Peter’s load and a virtual load that corresponds to a neighbour transformer. Both loads are 3-phase loads, which can be unbalanced to generated return currents. The leakage currents are simulated by considering a connection between one phase and the ground throughout a 10kΩ ...
Repeating circuit interrupter and battery charging circuit used
... nected to the line 14 through high voltage bushings 15 of the presence or absence of energy in the main distribu and the battery charging circuit 13 is coupled to the line tion line. However, because of the remoteness of such 14 by means of a current transformer 16 whose sec devices, it is impractic ...
... nected to the line 14 through high voltage bushings 15 of the presence or absence of energy in the main distribu and the battery charging circuit 13 is coupled to the line tion line. However, because of the remoteness of such 14 by means of a current transformer 16 whose sec devices, it is impractic ...
RT9363A - Richtek
... is arranged from 3.65V to 4.0V. The other voltage range occupies less than 20% battery energy and is insignificant. In the backlight application, the forward voltage of white LEDs most likely falls in 3.2 to 3.5V @ILED = 20mA. The developing concept of RT9363 is based on the backlight application wi ...
... is arranged from 3.65V to 4.0V. The other voltage range occupies less than 20% battery energy and is insignificant. In the backlight application, the forward voltage of white LEDs most likely falls in 3.2 to 3.5V @ILED = 20mA. The developing concept of RT9363 is based on the backlight application wi ...
Document
... • Objective: create a macro in CAPE to allow for easy calculation of arc flash at specified busses in a utility transmission system • Project: Study a few select substations, and develop an engineering report. • The method used for the select substations could then be applied to remaining system bus ...
... • Objective: create a macro in CAPE to allow for easy calculation of arc flash at specified busses in a utility transmission system • Project: Study a few select substations, and develop an engineering report. • The method used for the select substations could then be applied to remaining system bus ...
International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.12, pp. 1673-1679
... voltages into the grid at fundamental frequency and absorbs the active power from the grid at harmonic frequency. The 3rd harmonic is selected to exchange the active power between the converters through transmission line because it is a zero sequence harmonic that can easily blocked by the use of Υ- ...
... voltages into the grid at fundamental frequency and absorbs the active power from the grid at harmonic frequency. The 3rd harmonic is selected to exchange the active power between the converters through transmission line because it is a zero sequence harmonic that can easily blocked by the use of Υ- ...
FL3610001006
... wind farms. With gearless construction, such PMSG concept requires low maintenance, reduced losses and costs, high efficiency and good controllability. Currently, the PMSG-based WECS has been commercialized by some WT manufactures, such as Siemens Power Generation and GE Energy. Direct-drive wind en ...
... wind farms. With gearless construction, such PMSG concept requires low maintenance, reduced losses and costs, high efficiency and good controllability. Currently, the PMSG-based WECS has been commercialized by some WT manufactures, such as Siemens Power Generation and GE Energy. Direct-drive wind en ...
TRANSIENTS IN NO-LOAD CONDITION OF POWER
... depends on the load characteristics (power factor and load magnitude) at the moment the power transformer is turned off and also depends on the core material of the power transformer. If the power transformer is connected to sinusoidal voltage source, magnetic flux is also sinusoidal and the transfo ...
... depends on the load characteristics (power factor and load magnitude) at the moment the power transformer is turned off and also depends on the core material of the power transformer. If the power transformer is connected to sinusoidal voltage source, magnetic flux is also sinusoidal and the transfo ...
chapter 19 - electrochemistry
... To maintain electrically neutral solutions in both half-cells, anions flow into the anode half-cell and cations flows into the cathode half-cell. Thus, electric current is the flow of charged particles – electrons flows from anode to cathode through wire; cations and anions flows in opposite directi ...
... To maintain electrically neutral solutions in both half-cells, anions flow into the anode half-cell and cations flows into the cathode half-cell. Thus, electric current is the flow of charged particles – electrons flows from anode to cathode through wire; cations and anions flows in opposite directi ...
A Back-to-Back 2L-3L Grid Integration of a
... due to grid faults, grid loss and other faults. As stated earlier the power flow is bidirectional for both converters. During start-up active power is drawn from the grid to the DC-link and the grid-side inverter ...
... due to grid faults, grid loss and other faults. As stated earlier the power flow is bidirectional for both converters. During start-up active power is drawn from the grid to the DC-link and the grid-side inverter ...
J047026063
... fixed compensation, generates resonance problems and are bulky in size [6]. To overcome these disadvantages, active power filters are introduced which compensate for the current harmonics and reduces the total harmonic distortion. The SAPF is connected in parallel with the line through a coupling in ...
... fixed compensation, generates resonance problems and are bulky in size [6]. To overcome these disadvantages, active power filters are introduced which compensate for the current harmonics and reduces the total harmonic distortion. The SAPF is connected in parallel with the line through a coupling in ...
Lab #12 DC Power - Northern Arizona University
... 3. Reduce the frequency to about 1 Hz. You should be able to see the diodes turning on and off. Two diodes will be on at the same time for about 0.5 seconds, then the other pair will be on. Record which color diodes are on at the same time (circle in the table below). Note that VS is positive for ha ...
... 3. Reduce the frequency to about 1 Hz. You should be able to see the diodes turning on and off. Two diodes will be on at the same time for about 0.5 seconds, then the other pair will be on. Record which color diodes are on at the same time (circle in the table below). Note that VS is positive for ha ...
77 Fire Retardant Electric Arc Proofing Tape
... Scotch 77 Tape is a fire retardant arc proofing tape designed to protect all types of electrical cables. Its unique formulation allows the manufacture of an unsupported elastomer that expands to provide a thick char buildup. This insulating shield protects the cables and accessories from fault arc g ...
... Scotch 77 Tape is a fire retardant arc proofing tape designed to protect all types of electrical cables. Its unique formulation allows the manufacture of an unsupported elastomer that expands to provide a thick char buildup. This insulating shield protects the cables and accessories from fault arc g ...
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.