Development Trends of Superconducting Cable Technology for
... either reducing the flow volume or by enlarging the flow path, but the latter is not a feasible solution for places that require a compact conduit. To reduce the amount of coolant flow that is required, superconducting wires with lower losses are being developed to decrease the AC loss. ...
... either reducing the flow volume or by enlarging the flow path, but the latter is not a feasible solution for places that require a compact conduit. To reduce the amount of coolant flow that is required, superconducting wires with lower losses are being developed to decrease the AC loss. ...
Feed lines
... of the length of the lines and their proximity to each other. –Resistance in the metal itself slowing the flow –Therefore a feedline is a circuit which has reactance to the passage of AC current and which varies inversely as the operating frequency which means the value stays approximately the same ...
... of the length of the lines and their proximity to each other. –Resistance in the metal itself slowing the flow –Therefore a feedline is a circuit which has reactance to the passage of AC current and which varies inversely as the operating frequency which means the value stays approximately the same ...
Feed lines
... of the length of the lines and their proximity to each other. –Resistance in the metal itself slowing the flow –Therefore a feedline is a circuit which has reactance to the passage of AC current and which varies inversely as the operating frequency which means the value stays approximately the same ...
... of the length of the lines and their proximity to each other. –Resistance in the metal itself slowing the flow –Therefore a feedline is a circuit which has reactance to the passage of AC current and which varies inversely as the operating frequency which means the value stays approximately the same ...
Connecting to the Internet Through an ISP
... The Internet can be thought of as a network of routers, interconnected with one another. Very often, there are alternate routes between routers, and packets may take different paths between source and destination. If there is a problem with traffic flow at any point in the network; packets automatic ...
... The Internet can be thought of as a network of routers, interconnected with one another. Very often, there are alternate routes between routers, and packets may take different paths between source and destination. If there is a problem with traffic flow at any point in the network; packets automatic ...
Reflection Coefficient Applications in Test Measurements
... number of points set on the analyzer is 201. The step frequency is (5000 – 5) / 200 or 24.975 MHz. If there is a peak at 1015 MHz. The analyzer is going to make a measurement at 1004 MHz (40 points * 24.975 + 5 MHz) and 1028.975 MHz (1004 + 24.975). Because these frequencies are not exactly 1015 the ...
... number of points set on the analyzer is 201. The step frequency is (5000 – 5) / 200 or 24.975 MHz. If there is a peak at 1015 MHz. The analyzer is going to make a measurement at 1004 MHz (40 points * 24.975 + 5 MHz) and 1028.975 MHz (1004 + 24.975). Because these frequencies are not exactly 1015 the ...
Title Non-inductive variable reactor design and computer simulation
... Non-inductive reactor shows only the leakage inductance during normal operation. The self inductance of the limiting coil is the maximum inductance that could be seen during current limiting mode at fault condition with the test circuit as shown in Fig. 1. We performed simulations, using EMTDC (Elec ...
... Non-inductive reactor shows only the leakage inductance during normal operation. The self inductance of the limiting coil is the maximum inductance that could be seen during current limiting mode at fault condition with the test circuit as shown in Fig. 1. We performed simulations, using EMTDC (Elec ...
Voltmeter and Ammeter Loading Effects
... Ammeter Loading Effect Use a DMM ohmmeter to measure the actual resistance of a 4.7 Ω resistor. Use a DMM voltmeter to adjust the voltage source to 0.3 V. Calculate the unloaded current of the circuit in Figure 5. Actual resistance of the 4.7 Ω resistor = ____________Ω Unloaded current , I = _______ ...
... Ammeter Loading Effect Use a DMM ohmmeter to measure the actual resistance of a 4.7 Ω resistor. Use a DMM voltmeter to adjust the voltage source to 0.3 V. Calculate the unloaded current of the circuit in Figure 5. Actual resistance of the 4.7 Ω resistor = ____________Ω Unloaded current , I = _______ ...
Measuring Impedance and Frequency Response of Guitar Pickups
... The output is connected to channel A of the oscilloscope. Resistor Rmeas and the pickup inductance form a voltage divider, where the voltage across the inductor is measured by channel B of the oscilloscope. Ideally, Rmeas should be much larger than the maximum impedance of the pickup. However, for d ...
... The output is connected to channel A of the oscilloscope. Resistor Rmeas and the pickup inductance form a voltage divider, where the voltage across the inductor is measured by channel B of the oscilloscope. Ideally, Rmeas should be much larger than the maximum impedance of the pickup. However, for d ...
Scalar Potential and Conservative Electric Field Within a Loaded
... the final electrical field distribution throughout the coil (1). We also consider the effect of charge distribution and scalar potential in the coil windings: To create rapid current changes in gradient coils, a very strong electromotive force is required to overcome the inductance of the gradient w ...
... the final electrical field distribution throughout the coil (1). We also consider the effect of charge distribution and scalar potential in the coil windings: To create rapid current changes in gradient coils, a very strong electromotive force is required to overcome the inductance of the gradient w ...
Raychem Testing Locating Faults Engineering Specifications
... They require an external 6-volt lantern battery as a separate voltage source. A potentiometer calibrated in percent permits the bridge to be balanced and the distance to the fault, from the negative end, is read as a percent of the actual cable length, L. Refer to the operation manual for complete d ...
... They require an external 6-volt lantern battery as a separate voltage source. A potentiometer calibrated in percent permits the bridge to be balanced and the distance to the fault, from the negative end, is read as a percent of the actual cable length, L. Refer to the operation manual for complete d ...
USER MANUAL VU01 Hukseflux
... the electrical connection of VU01. To use the alarm, the user must supply an alarm operating voltage U a of maximum 60 VDC. An external load resistor is required to make sure the sink current is between 2 and 20 x 10-3 A. For example, using a 1000 Ω load resistor will allow alarm operating voltages ...
... the electrical connection of VU01. To use the alarm, the user must supply an alarm operating voltage U a of maximum 60 VDC. An external load resistor is required to make sure the sink current is between 2 and 20 x 10-3 A. For example, using a 1000 Ω load resistor will allow alarm operating voltages ...
EE6352_Unit_1
... • Facilitates collection of current from the armature conductors • The commutator & brushes arrangement converts AC to DC It is of cylindrical structure and built up of wedge-shaped segments of high-conductivity hard-drawn or drop forged copper. • These segments are insulated from each other by thin ...
... • Facilitates collection of current from the armature conductors • The commutator & brushes arrangement converts AC to DC It is of cylindrical structure and built up of wedge-shaped segments of high-conductivity hard-drawn or drop forged copper. • These segments are insulated from each other by thin ...
GLD-AR84 Expander AudioRack
... The GLD-AR84 is the expander audio interface rack for the Allen & Heath GLD digital mixing system. It provides 8 remote controlled mic/line preamps and 4 XLR line outputs. Up to two AR84 AudioRacks can be added to a GLD system. The AR84 can connect to the GLD-AR2412 main AudioRack to expand the numb ...
... The GLD-AR84 is the expander audio interface rack for the Allen & Heath GLD digital mixing system. It provides 8 remote controlled mic/line preamps and 4 XLR line outputs. Up to two AR84 AudioRacks can be added to a GLD system. The AR84 can connect to the GLD-AR2412 main AudioRack to expand the numb ...
AVR496: Brushless DC Motor Control using
... This application note describes how to implement a brushless DC motor control in sensor mode using the ATtiny861 AVR microcontroller. The high performance AVR® core a long with the Timer 1 of the ATtiny861 allows to design high speed brushless DC motor applications. In this document, we will give a ...
... This application note describes how to implement a brushless DC motor control in sensor mode using the ATtiny861 AVR microcontroller. The high performance AVR® core a long with the Timer 1 of the ATtiny861 allows to design high speed brushless DC motor applications. In this document, we will give a ...
Aalborg Universitet Measurements for validation of high voltage underground cable modelling
... In recent years, interest towards using underground high voltage (HV) cables in power transmission, has increased considerably. In order to research the possibility of using large HV AC cable systems, it is necessary to have precise simulation models. HV transmission cable models are to correctly re ...
... In recent years, interest towards using underground high voltage (HV) cables in power transmission, has increased considerably. In order to research the possibility of using large HV AC cable systems, it is necessary to have precise simulation models. HV transmission cable models are to correctly re ...
Wireless FM Transmitter
... Referring to the schematic, C2 and C4 act as decoupling capacitors and typically 0.01 uF (or 0.1 uF) are used. C4 attempts to maintain a constant voltage across the entire circuit despite voltage fluctuations as the battery dies. A capacitor can be thought of as a frequency-dependent resistor (calle ...
... Referring to the schematic, C2 and C4 act as decoupling capacitors and typically 0.01 uF (or 0.1 uF) are used. C4 attempts to maintain a constant voltage across the entire circuit despite voltage fluctuations as the battery dies. A capacitor can be thought of as a frequency-dependent resistor (calle ...
The Numerical Simulation Study of the DC Compensated Choke for
... core but also through the air and the second type of coupling increases if coils are close to each other. As filter coils should be weakly coupled, for further analysis coils arranged as far as possible from each other have been used, as shown in Fig. 8. As for the other output of the simulation, it ...
... core but also through the air and the second type of coupling increases if coils are close to each other. As filter coils should be weakly coupled, for further analysis coils arranged as far as possible from each other have been used, as shown in Fig. 8. As for the other output of the simulation, it ...
100V Line Systems
... As the voltages can approach 100 volts, a double insulated cable should be used at all times. The cable should be adequately secured and cable runs should be kept away from any potential source of interference. These include other cables: 3 phase mains, data, telecom cables etc. Loudspeaker switchi ...
... As the voltages can approach 100 volts, a double insulated cable should be used at all times. The cable should be adequately secured and cable runs should be kept away from any potential source of interference. These include other cables: 3 phase mains, data, telecom cables etc. Loudspeaker switchi ...
Alarmline® LWM-1 Linear Heat Detection System
... exceeded. Two 16 step dip-switches are available for the adjustment of the differential alarm: Diff-time and Diff-alarm. Difftime changes the integration time of the ambient temperature; the shorter the time interval, the lesser sensitive the system responses. Diff-alarm changes the temperature rang ...
... exceeded. Two 16 step dip-switches are available for the adjustment of the differential alarm: Diff-time and Diff-alarm. Difftime changes the integration time of the ambient temperature; the shorter the time interval, the lesser sensitive the system responses. Diff-alarm changes the temperature rang ...
ANT-916-JJB-HT-x Data Sheet
... calculated by measuring the voltage wave that is headed toward the load versus the voltage wave that is reflected back from the load. A perfect match will have a VSWR of 1:1. The higher the first number, the worse the match, and the more inefficient the system. Since a perfect match cannot ever be o ...
... calculated by measuring the voltage wave that is headed toward the load versus the voltage wave that is reflected back from the load. A perfect match will have a VSWR of 1:1. The higher the first number, the worse the match, and the more inefficient the system. Since a perfect match cannot ever be o ...
ANT-868-JJB-HT-x Data Sheet
... calculated by measuring the voltage wave that is headed toward the load versus the voltage wave that is reflected back from the load. A perfect match will have a VSWR of 1:1. The higher the first number, the worse the match, and the more inefficient the system. Since a perfect match cannot ever be o ...
... calculated by measuring the voltage wave that is headed toward the load versus the voltage wave that is reflected back from the load. A perfect match will have a VSWR of 1:1. The higher the first number, the worse the match, and the more inefficient the system. Since a perfect match cannot ever be o ...
FREE ENERGY
... An ordinary unipolar motor consists from a magnet disk, and a voltage applied to the axis and a peripheral point (a). But also, an ordinary unipolar motor can consists from an external magnet and a metal disk with voltage applied to the axis and a peripheral point (b) of the disk. This option of th ...
... An ordinary unipolar motor consists from a magnet disk, and a voltage applied to the axis and a peripheral point (a). But also, an ordinary unipolar motor can consists from an external magnet and a metal disk with voltage applied to the axis and a peripheral point (b) of the disk. This option of th ...
Loading coil
A loading coil or load coil is an inductor that is inserted into an electronic circuit to increase its inductance. A loading coil is not a transformer to provide coupling to another other circuit. The term originated in the 19th century for inductors used to prevent signal distortion in long-distance telegraph transmission cables. The term is also used for inductors in radio antennas, or between the antenna and its feedline, to make an electrically short antenna resonant at its operating frequency.Loading coils are historically also known as Pupin coils after Mihajlo Pupin, especially when used for the Heaviside condition and the process of inserting them is sometimes called pupinization.The concept of loading coils was discovered by Oliver Heaviside in studying the problem of slow signalling speed of the first transatlantic telegraph cable in the 1860s. He concluded additional inductance was required to prevent amplitude and time delay distortion of the transmitted signal. The mathematical condition for distortion-free transmission is known as the Heaviside condition. Previous telegraph lines were overland or shorter and hence had less delay, and the need for extra inductance was not as great. Submarine communications cables are particularly subject to the problem, but early 20th century installations using balanced pairs were often continuously loaded with iron wire or tape rather than discretely with loading coils, which avoided the sealing problem.