Negative-Sequence Impedance Directional Element
... gives a negative-sequence impedance which is positive and a forward fault gives a negativesequence impedance which is negative, Z2R is always set more positive than Z2F. For practically every application, Z2F can be set for ½ the positive-sequence impedance of the line and Z2R can be set equal to Z2 ...
... gives a negative-sequence impedance which is positive and a forward fault gives a negativesequence impedance which is negative, Z2R is always set more positive than Z2F. For practically every application, Z2F can be set for ½ the positive-sequence impedance of the line and Z2R can be set equal to Z2 ...
Aalborg Universitet Secondary Control for Voltage Quality Enhancement in Microgrids
... control power flow and also to compensate the voltage unbalance. This two-inverter structure can be unattractive considering the cost and volume of the DG interface converter. In addition, it should be noted that the methods presented in [3]-[8] are designed to enhance voltage quality at the DG term ...
... control power flow and also to compensate the voltage unbalance. This two-inverter structure can be unattractive considering the cost and volume of the DG interface converter. In addition, it should be noted that the methods presented in [3]-[8] are designed to enhance voltage quality at the DG term ...
Lab
... 3. Now measure the voltage drops on each of the 3 resistors and enter into the measured values section of the table. 4. Compare the measured values with your calculated values. Do they agree? If not, then either your measured values are incorrect or the calculated values are wrong. Recheck and repea ...
... 3. Now measure the voltage drops on each of the 3 resistors and enter into the measured values section of the table. 4. Compare the measured values with your calculated values. Do they agree? If not, then either your measured values are incorrect or the calculated values are wrong. Recheck and repea ...
A.C. Chow and D.J. Perreault, “Design of an Active Ripple Filter using Voltage Injection,” 2001 IEEE Power Electronics Specialists Conference , Vancouver, Canada, June 2001, pp. 390-397.
... cancels or suppresses the low-frequency ripple components that are most difficult to attenuate with a passive low-pass filter. This approach permits a substantial reduction in the passive filter size, with potential benefits in converter size, weight, and cost. Active filters may be characterized by ...
... cancels or suppresses the low-frequency ripple components that are most difficult to attenuate with a passive low-pass filter. This approach permits a substantial reduction in the passive filter size, with potential benefits in converter size, weight, and cost. Active filters may be characterized by ...
62-0415 E-Mon Green Class Meter Manual
... ready to install the current sensors. The MAIN power board contains three header connectors located at the bottom right of the board. The connectors are labeled A, B, and C along with conductor color indication. This format must be followed in order for the meter to function correctly. The Green Cla ...
... ready to install the current sensors. The MAIN power board contains three header connectors located at the bottom right of the board. The connectors are labeled A, B, and C along with conductor color indication. This format must be followed in order for the meter to function correctly. The Green Cla ...
FIRST Electrical Design
... motor running. The breaker panel is defective. This actually is an effect of the some of the principles discussed earlier. High currents in the wires we use result in some voltage drop. Measuring at the motor, is in effect, compensating for this loss. Remember the wire foot, every foot of #10 at sta ...
... motor running. The breaker panel is defective. This actually is an effect of the some of the principles discussed earlier. High currents in the wires we use result in some voltage drop. Measuring at the motor, is in effect, compensating for this loss. Remember the wire foot, every foot of #10 at sta ...
MAX14820 IO-Link Device Transceiver General Description Features
... The MAX14820 transceiver is suitable for IO-Link® devices and 24V binary sensors/actuators. All specified IO-Link data rates are supported. In IO-Link applications, the transceiver acts as the physical layer interface to a microcontroller running the data-link layer protocol. Additional 24V digital ...
... The MAX14820 transceiver is suitable for IO-Link® devices and 24V binary sensors/actuators. All specified IO-Link data rates are supported. In IO-Link applications, the transceiver acts as the physical layer interface to a microcontroller running the data-link layer protocol. Additional 24V digital ...
Study Guide
... Determine the initial value of the voltage drop across the capacitor. This value may be given to you in the problem statement. More often, you will need to draw the circuit for t < 0 and use simple dc circuit analysis to find the capacitor voltage. Remember that in the circuit for t < 0 the capacito ...
... Determine the initial value of the voltage drop across the capacitor. This value may be given to you in the problem statement. More often, you will need to draw the circuit for t < 0 and use simple dc circuit analysis to find the capacitor voltage. Remember that in the circuit for t < 0 the capacito ...
Aalborg Universitet Flywheel Energy Storage System
... respectively, while iHEV is the current extracted by the fast DC charger(s). The HEV charger, grid interface and flywheel have their own specific dynamic features, so it is necessary to study the effect produced by each unit, in order to obtain the stability properties of the whole system. (1). HEV ...
... respectively, while iHEV is the current extracted by the fast DC charger(s). The HEV charger, grid interface and flywheel have their own specific dynamic features, so it is necessary to study the effect produced by each unit, in order to obtain the stability properties of the whole system. (1). HEV ...
... to 50% larger. As a demonstration, a chirp-free modulator, having ∼2V switching voltage and bandwidth of 15 GHz, was fabricated by placing the waveguide arms of a Mach-Zehnder interferometer in opposite domain oriented regions. The modulator could be driven in a single-drive configuration with inexp ...
Lighting Control Devices
... 2. Send and receive messages for real-time operation and feedback 3. Use industry standard RF protocols 4. Be in compliance with FCC and IEE standards ...
... 2. Send and receive messages for real-time operation and feedback 3. Use industry standard RF protocols 4. Be in compliance with FCC and IEE standards ...
Operating Instructions for EL1904
... The documentation has been prepared with care. The products described are, however, constantly under development. For that reason the documentation is not in every case checked for consistency with performance data, standards or other characteristics. In the event that it contains technical or edito ...
... The documentation has been prepared with care. The products described are, however, constantly under development. For that reason the documentation is not in every case checked for consistency with performance data, standards or other characteristics. In the event that it contains technical or edito ...
SIGC28T60SE
... Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Inf ...
... Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Inf ...
Seminar Report
... TO-220FP, TO-3, D²PAK and DPAK packages and several fixed output voltages, making it useful in a wide rangeof applications. These regulators can providelocal on-card regulation, eliminating thedistribution problems associated with single pointregulation. Each type employs internal currentlimiting, t ...
... TO-220FP, TO-3, D²PAK and DPAK packages and several fixed output voltages, making it useful in a wide rangeof applications. These regulators can providelocal on-card regulation, eliminating thedistribution problems associated with single pointregulation. Each type employs internal currentlimiting, t ...
CA201002EN
... transformer with its proven vacuum fault interrupter (VFI) in its Cooper Power series VFI transformer. This combination provides both voltage transformation and overcurrent protection in one spacesaving, money-saving package. The single-phase pad-mounted VFI transformer with loop protection is desig ...
... transformer with its proven vacuum fault interrupter (VFI) in its Cooper Power series VFI transformer. This combination provides both voltage transformation and overcurrent protection in one spacesaving, money-saving package. The single-phase pad-mounted VFI transformer with loop protection is desig ...
Current and Circuits
... Resistance and Ohm’s Law The unit for resistance is named for German scientist Georg Simon Ohm, who found that the ratio of potential difference to current is constant for a given conductor. The resistance for most conductors does not vary as the magnitude or direction of the potential applied to it ...
... Resistance and Ohm’s Law The unit for resistance is named for German scientist Georg Simon Ohm, who found that the ratio of potential difference to current is constant for a given conductor. The resistance for most conductors does not vary as the magnitude or direction of the potential applied to it ...
LABORATORY SESSION 6
... A series generator that is operated at no-load develops a small terminal voltage proportional to the residual flux. As the load increases, the field current rises, so Ea rises rapidly. The ( Ra + Rs ) I a drop goes up too, but at first the increase in Ea goes up more rapidly than the ( Ra + Rs ) I a ...
... A series generator that is operated at no-load develops a small terminal voltage proportional to the residual flux. As the load increases, the field current rises, so Ea rises rapidly. The ( Ra + Rs ) I a drop goes up too, but at first the increase in Ea goes up more rapidly than the ( Ra + Rs ) I a ...
Aalborg Universitet after disconnection
... Abstract: Some electrical distribution companies are nowadays replacing overhead lines with underground cables. These changes from overhead to underground cable provoke an increased reactive power production in the grid. To save circuit breakers the reactors needed for compensating this excessive re ...
... Abstract: Some electrical distribution companies are nowadays replacing overhead lines with underground cables. These changes from overhead to underground cable provoke an increased reactive power production in the grid. To save circuit breakers the reactors needed for compensating this excessive re ...
Opto-isolator
In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.