Voltage Source Inverter Drives and the use of Power
... the magnitude of voltage “ring-up” on the 3 phase voltage can be as high as 2 times the fundamental voltage value. In the case of this example the peak voltage is approximately 1100V, or 1.7 times the fundamental value. Also based on the values of source inductance, power factor correction Kvars and ...
... the magnitude of voltage “ring-up” on the 3 phase voltage can be as high as 2 times the fundamental voltage value. In the case of this example the peak voltage is approximately 1100V, or 1.7 times the fundamental value. Also based on the values of source inductance, power factor correction Kvars and ...
Dynamic Logic Circuits
... Dynamic circuits require periodic clock signals for control of charge refreshing. ...
... Dynamic circuits require periodic clock signals for control of charge refreshing. ...
File - Department of Electrical Engineering
... : After completion of the course the student will be able to: Learn to represent the power system components into their equivalent parameters. Understand various causes of overvoltage resulting in insulation failure and principles of protection against over voltages. Learn about very basic pro ...
... : After completion of the course the student will be able to: Learn to represent the power system components into their equivalent parameters. Understand various causes of overvoltage resulting in insulation failure and principles of protection against over voltages. Learn about very basic pro ...
Multiple-output Switched Mode Power Supplies (SMPSs)
... Multiple-output Switched Mode Power Supplies (SMPSs) for personal computers (PCs) normally depict extremely bad power quality indices at the utility interface such as total harmonic distortion of the input current being more than 80%, power factor being lower than 0.5 and output voltage regulation b ...
... Multiple-output Switched Mode Power Supplies (SMPSs) for personal computers (PCs) normally depict extremely bad power quality indices at the utility interface such as total harmonic distortion of the input current being more than 80%, power factor being lower than 0.5 and output voltage regulation b ...
Switches in Series and Parallel Circuits
... the load. There will therefore be a limit on the number of switches which can be connected in series given the voltage applied to the circuit. 4. Current limiting resistors must be used in series with solid state switches connected in series to prevent a short circuit at the power supply output. If ...
... the load. There will therefore be a limit on the number of switches which can be connected in series given the voltage applied to the circuit. 4. Current limiting resistors must be used in series with solid state switches connected in series to prevent a short circuit at the power supply output. If ...
P7C Mechanical Specifications Submittal
... AC drive. Three-phase input line power is converted to a sine-coded, variable frequency output, which provides optimum speed control of any conventional squirrel cage induction motor. The use of IGBTs (Insulated Gate Bipolar Transistors), with a carrier frequency range of 2.0 kHz to 15 kHz, permits ...
... AC drive. Three-phase input line power is converted to a sine-coded, variable frequency output, which provides optimum speed control of any conventional squirrel cage induction motor. The use of IGBTs (Insulated Gate Bipolar Transistors), with a carrier frequency range of 2.0 kHz to 15 kHz, permits ...
ComboLight New Construction Recessed w/Trim - 12V PAR36 - 4 Light Square
... lamps in a 2x2 square configuration. ...
... lamps in a 2x2 square configuration. ...
Electronic Troubleshooting
... • This repeats every 1/2cycle while the digital input is a Logic 0 • For low current applications the internal TRIAC may be sufficient ...
... • This repeats every 1/2cycle while the digital input is a Logic 0 • For low current applications the internal TRIAC may be sufficient ...
Power Control Devices
... • This repeats every 1/2cycle while the digital input is a Logic 0 • For low current applications the internal TRIAC may be sufficient ...
... • This repeats every 1/2cycle while the digital input is a Logic 0 • For low current applications the internal TRIAC may be sufficient ...
A Simulation Study of the PWM Strategy for Inverters
... 1. Illustration of PWM Principle: Set the modulation index with 0.75 and modulation frequency of 60 Hz, apply SPWM to the inverter Complete the simulation of (1) by using SPWM and show some selected variables shown in the following figure to illustrate the operation principle of PWM strategy. You ma ...
... 1. Illustration of PWM Principle: Set the modulation index with 0.75 and modulation frequency of 60 Hz, apply SPWM to the inverter Complete the simulation of (1) by using SPWM and show some selected variables shown in the following figure to illustrate the operation principle of PWM strategy. You ma ...
transmission stability improvement by means of TCSC and SC
... Since spring of 1999, Eletronorte of Brazil has been operating a Thyristor-controlled Series Capacitor (TCSC) and five fixed Series Capacitors supplied by ABB in Eletronorte´s 500 kV interconnector between its northern and southern power systems. All in all, about 1.100 Mvar of series capacitors hav ...
... Since spring of 1999, Eletronorte of Brazil has been operating a Thyristor-controlled Series Capacitor (TCSC) and five fixed Series Capacitors supplied by ABB in Eletronorte´s 500 kV interconnector between its northern and southern power systems. All in all, about 1.100 Mvar of series capacitors hav ...
experiment 5 - UniMAP Portal
... counter clockwise and then turn off the power. Note: When measuring the various voltages, turn off the Power Supply before modifying the connections of the DAI to the circuit. 7. Are the voltages within the secondary delta equal to zero, thus confirming that it is safe to close the delta? Note: The ...
... counter clockwise and then turn off the power. Note: When measuring the various voltages, turn off the Power Supply before modifying the connections of the DAI to the circuit. 7. Are the voltages within the secondary delta equal to zero, thus confirming that it is safe to close the delta? Note: The ...
Product info PM400-800 LCD-P2
... - Compact line-interactive uninterrupted power supply with automatic voltage regulation - Protection against data losses and damage to the sensible PC equipment caused by blackouts, brownouts, peaks and surges - Built-in Smart RS-232 communication port - Controlled Shut-down function - 3 protected o ...
... - Compact line-interactive uninterrupted power supply with automatic voltage regulation - Protection against data losses and damage to the sensible PC equipment caused by blackouts, brownouts, peaks and surges - Built-in Smart RS-232 communication port - Controlled Shut-down function - 3 protected o ...
Lecture 4 - UniMAP Portal
... used by industry and the general public. The same fundamentals of measurement apply as for electric power measurement, but in addition the electricity meter provides the time-integrating means necessary for electric energy measurement. A single meter is sometimes used to measure the energy consumed ...
... used by industry and the general public. The same fundamentals of measurement apply as for electric power measurement, but in addition the electricity meter provides the time-integrating means necessary for electric energy measurement. A single meter is sometimes used to measure the energy consumed ...
Pulse Width Modulator
... PWM circuit current 1.5 mA at 12 V with no LED and no load D1 is a flywheel diode that shorts out the reverse Operating voltage 12 or 24 V, depending on the configuration voltage kick from inductive receives a variable voltage from the R6, VR1, R7 motor loads. In the 24 volt mode, regulator U2 conve ...
... PWM circuit current 1.5 mA at 12 V with no LED and no load D1 is a flywheel diode that shorts out the reverse Operating voltage 12 or 24 V, depending on the configuration voltage kick from inductive receives a variable voltage from the R6, VR1, R7 motor loads. In the 24 volt mode, regulator U2 conve ...
Electrical substation
A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control.A substation may include transformers to change voltage levels between high transmission voltages and lower distribution voltages, or at the interconnection of two different transmission voltages. The word substation comes from the days before the distribution system became a grid. As central generation stations became larger, smaller generating plants were converted to distribution stations, receiving their energy supply from a larger plant instead of using their own generators. The first substations were connected to only one power station, where the generators were housed, and were subsidiaries of that power station.