AR01415591564
... The control strategy of shunt FACTS devices is tested on a single machine infinite bus (SMIB) system. The same control strategy is also applied to symmetrical faults in 10machine 39-bus system. Simulation results indicated that the critical clearing time (CCT) obtained with the control is significan ...
... The control strategy of shunt FACTS devices is tested on a single machine infinite bus (SMIB) system. The same control strategy is also applied to symmetrical faults in 10machine 39-bus system. Simulation results indicated that the critical clearing time (CCT) obtained with the control is significan ...
Transformers AM326 KB
... secondary coil? (b) No transformer is 100% efficient, although most are nearly so. State two effects that may in practice reduce the efficiency of a transformer. (c) Explain why a transformer cannot provide an output of 20 V dc when connected to a car battery whose emf is 12 V. ...
... secondary coil? (b) No transformer is 100% efficient, although most are nearly so. State two effects that may in practice reduce the efficiency of a transformer. (c) Explain why a transformer cannot provide an output of 20 V dc when connected to a car battery whose emf is 12 V. ...
Lab 3
... “sticky.” If you are up to about 10 V and your motor is still not turning, try a different one. Measure the voltage V across the motor and the current through the motor at the point where the motor first starts to turn at a steady speed. Make sure you are measuring current in the motor, not in R1 or ...
... “sticky.” If you are up to about 10 V and your motor is still not turning, try a different one. Measure the voltage V across the motor and the current through the motor at the point where the motor first starts to turn at a steady speed. Make sure you are measuring current in the motor, not in R1 or ...
Digital Thermometer
... 4, 8, 16, 32, 64, & 128 times each other. They are followed by an Operational Amplifier in a voltage follower design to prevent loading the network and distorting the output. This output go to the other side of the voltage comparator. When the count generates a voltage that is slightly higher than t ...
... 4, 8, 16, 32, 64, & 128 times each other. They are followed by an Operational Amplifier in a voltage follower design to prevent loading the network and distorting the output. This output go to the other side of the voltage comparator. When the count generates a voltage that is slightly higher than t ...
Retarding Field Energy Analyzer Measurements of Ion Velocity
... The principle operation of a retarding field analyzer is to select or reject either positive ions or negative electrons from the plasma using electrostatic fields. These fields are created by applying variable voltages between parallel fine mesh screens through which the particles travel. Particles ...
... The principle operation of a retarding field analyzer is to select or reject either positive ions or negative electrons from the plasma using electrostatic fields. These fields are created by applying variable voltages between parallel fine mesh screens through which the particles travel. Particles ...
Group C
... of torque from the top drive motor to the drill head. This string can be very long, since it must span from the surface, where the rig is located, to drill head under the seabed. One issue that arises is that waves cause the floating rig to rise and fall relative to the drill head, thus changing the ...
... of torque from the top drive motor to the drill head. This string can be very long, since it must span from the surface, where the rig is located, to drill head under the seabed. One issue that arises is that waves cause the floating rig to rise and fall relative to the drill head, thus changing the ...
Evaluates: MAX1678 MAX1678 Evaluation Kit General Description Features
... The final circuit performance is determined by the quality of the components surrounding the MAX1678. The input and output capacitors must have low equivalent-seriesresistance (ESR) to handle the high peak currents found in switching regulators. Low ESR is especially critical in low-voltage circuits ...
... The final circuit performance is determined by the quality of the components surrounding the MAX1678. The input and output capacitors must have low equivalent-seriesresistance (ESR) to handle the high peak currents found in switching regulators. Low ESR is especially critical in low-voltage circuits ...
CHAPTER 8 Transmission of power
... to the square root of the power. That is, if the power to be transmitted is quadrupled, it can be transmitted twice as far for the same unit cost. It is therefore uneconomical to transmit power over a long distance unless a large quantity of power is involved. The cost of constructing a line undergr ...
... to the square root of the power. That is, if the power to be transmitted is quadrupled, it can be transmitted twice as far for the same unit cost. It is therefore uneconomical to transmit power over a long distance unless a large quantity of power is involved. The cost of constructing a line undergr ...
Amplifiers
... Output signal has a ramping factor. This will effect the reproduction of higher frequencies, as the signal “blurs” ...
... Output signal has a ramping factor. This will effect the reproduction of higher frequencies, as the signal “blurs” ...
Preliminary Datasheet
... PWM signal to reduce this regulation voltage by changing the PWM duty cycle to achieve LED brightness dimming control. Detail circuit, as show in Figure 14. The relationship between the duty cycle and LED current can be expressed as below: ...
... PWM signal to reduce this regulation voltage by changing the PWM duty cycle to achieve LED brightness dimming control. Detail circuit, as show in Figure 14. The relationship between the duty cycle and LED current can be expressed as below: ...
EPCOS Film Capacitors - Power Factor Correction
... EPCOS has extended its PFC portfolio by introducing the MMI7000 Multi-Measurement Interface. Whereas the MMI6000 is designed for single-phase measurements, the MMI7000 permits three-phase measurements. As a universal measuring device, the MMI7000 displays and records a large number of key grid param ...
... EPCOS has extended its PFC portfolio by introducing the MMI7000 Multi-Measurement Interface. Whereas the MMI6000 is designed for single-phase measurements, the MMI7000 permits three-phase measurements. As a universal measuring device, the MMI7000 displays and records a large number of key grid param ...
Oscillator Notes 2
... How do you reduce power dissipation in a LO buffer amplifier? The bias current of the amplifier is directly related to the output voltage swing and RL. If the supply voltage is fixed, then you can reduce current to save power. 1. Increase RL. This may be practical in situations where the frequency ...
... How do you reduce power dissipation in a LO buffer amplifier? The bias current of the amplifier is directly related to the output voltage swing and RL. If the supply voltage is fixed, then you can reduce current to save power. 1. Increase RL. This may be practical in situations where the frequency ...
1“ ELECTRONIC AIR CLEANER
... All filters restrict air flow. The degree of restriction is measured as “pressure drop” and will determine how long and how hard a fan motor will need to operate to achieve the desired heating or cooling level in your home. The Model 1000 has a pressure drop rating that is significantly lower than t ...
... All filters restrict air flow. The degree of restriction is measured as “pressure drop” and will determine how long and how hard a fan motor will need to operate to achieve the desired heating or cooling level in your home. The Model 1000 has a pressure drop rating that is significantly lower than t ...
7GHz Precision RF Detector with Fast Comparator Eliminates
... detector, the first to include a fast comparator. The device combines wide frequency range operation and low power in a small, cost-effective solution that allows precise detection of an RF signal. The LTC5536’s voltage output is compared against a DC voltage threshold that is set by the user. The c ...
... detector, the first to include a fast comparator. The device combines wide frequency range operation and low power in a small, cost-effective solution that allows precise detection of an RF signal. The LTC5536’s voltage output is compared against a DC voltage threshold that is set by the user. The c ...
Ferroresonance in Three-Phase Power Distribution Transformers
... percentage of the transformer rating can be enough to damp out the ferroresonance. But in two-phase open system it is sometimes more difficult to avoid the ferroresonance appearance by the use of a secondary load. Generally, the amount of load necessary will depend on the capacitance connected to th ...
... percentage of the transformer rating can be enough to damp out the ferroresonance. But in two-phase open system it is sometimes more difficult to avoid the ferroresonance appearance by the use of a secondary load. Generally, the amount of load necessary will depend on the capacitance connected to th ...
Motorized Pinwheel
... change in voltage in the gate makes a connection between the other two pins. Connect one end of the motor to the middle pin of the transistor. This pin is called the drain. When the Arduino activates the transistor by supplying voltage to the gate, this pin will be connected to the third pin, called ...
... change in voltage in the gate makes a connection between the other two pins. Connect one end of the motor to the middle pin of the transistor. This pin is called the drain. When the Arduino activates the transistor by supplying voltage to the gate, this pin will be connected to the third pin, called ...
Optimal DG Allocation in a Smart Distribution Wirote Buaklee Komsan Hongesombut
... To simulate the optimal siting and sizing of DG in distribution system as shown in Fig.1, the number of nests, the discovering probability and number of iteration in cuckoo search algorithm will be set to 25, 0.25 and 100 respectively. The other parameters will be according to the data provided in T ...
... To simulate the optimal siting and sizing of DG in distribution system as shown in Fig.1, the number of nests, the discovering probability and number of iteration in cuckoo search algorithm will be set to 25, 0.25 and 100 respectively. The other parameters will be according to the data provided in T ...
Mains electricity
Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.