Subscriber Loop Design Techniques
... • The size of an exchange area (also called a serving area) obviously will depend largely on subscriber density and distribution. Subscriber traffic is another factor to be considered. • Exchange sizes are often in units of 10,000 lines. This is important in telephone numbering. • If statistics on s ...
... • The size of an exchange area (also called a serving area) obviously will depend largely on subscriber density and distribution. Subscriber traffic is another factor to be considered. • Exchange sizes are often in units of 10,000 lines. This is important in telephone numbering. • If statistics on s ...
L N F A B O R A T O R I
... semi–permeable, thin and homogeneous barrier, which allows the entrance of Hydrogen or Deuterium into Pd lattice as atomic H or D [Ref. 6]. Such a barrier acts as a poison for the recombination processes: H+H=H2 or D+D=D2. Such a layer was expected to increase the cathodic over–voltage, through the ...
... semi–permeable, thin and homogeneous barrier, which allows the entrance of Hydrogen or Deuterium into Pd lattice as atomic H or D [Ref. 6]. Such a barrier acts as a poison for the recombination processes: H+H=H2 or D+D=D2. Such a layer was expected to increase the cathodic over–voltage, through the ...
inductors - Murata Power Solutions
... are many properties of inductors which cannot be produced using ‘‘cheap’’ silicon, one that is immediately brought to mind is use in power circuitr y. Another area in which an inductor may prove to be cheaper is in a simple filter circuit, active filters are usually considerably more complex and oft ...
... are many properties of inductors which cannot be produced using ‘‘cheap’’ silicon, one that is immediately brought to mind is use in power circuitr y. Another area in which an inductor may prove to be cheaper is in a simple filter circuit, active filters are usually considerably more complex and oft ...
Wiring Matters cover
... their distribution networks where the supply neutral conductor provides the function of both neutral conductor and protective conductor (A TN-C-S system). Where PME is used, the public supply neutral conductor is referred to as the PEN (combined protective and neutral) conductor or CNE (combined neu ...
... their distribution networks where the supply neutral conductor provides the function of both neutral conductor and protective conductor (A TN-C-S system). Where PME is used, the public supply neutral conductor is referred to as the PEN (combined protective and neutral) conductor or CNE (combined neu ...
Selection Guide to Clamp-On Current Probes
... is held constant, the magnetic field (B) is directly proportional to the current in a conductor. Thus, the Hall output voltage (Vh) is representative of that current. Such an arrangement has two important benefits for universal current measurement. First, since the Hall voltage is not dependent on a ...
... is held constant, the magnetic field (B) is directly proportional to the current in a conductor. Thus, the Hall output voltage (Vh) is representative of that current. Such an arrangement has two important benefits for universal current measurement. First, since the Hall voltage is not dependent on a ...
chapter30
... electron orbiting in the same direction The net result is that the magnetic effect produced by the orbital motion of the electrons is either zero or very small ...
... electron orbiting in the same direction The net result is that the magnetic effect produced by the orbital motion of the electrons is either zero or very small ...
Coil Testing in a Manufacturing Environment
... The High Potential or Dielectric Voltage-Withstand Test is designed to verify insulation integrity between a winding and its adjacent conductors. These conductors may include other windings, a transformer core or motor armature, or some other gound path. The Hipot voltage level is commonly specified ...
... The High Potential or Dielectric Voltage-Withstand Test is designed to verify insulation integrity between a winding and its adjacent conductors. These conductors may include other windings, a transformer core or motor armature, or some other gound path. The Hipot voltage level is commonly specified ...
The Electric Motor
... scrape it off with a knife, or sand it off with sandpaper. Using either tool you will find it most effective to scrape or sand in one direction—towards the free end of the wire. The diameter of the wire is given by the “American Wire Gauge,” or AWG. The larger the gauge number, the smaller the wire ...
... scrape it off with a knife, or sand it off with sandpaper. Using either tool you will find it most effective to scrape or sand in one direction—towards the free end of the wire. The diameter of the wire is given by the “American Wire Gauge,” or AWG. The larger the gauge number, the smaller the wire ...
Document
... The tunneling current (0.01nA-50nA) is converted into a voltage by a current amplifier. To get a linear response with respect to the tunneling gap (the current is exponentially dependant on the tip-sample distance) the signal is processed by a logarithmic amplifier. The output of the logarithmic amp ...
... The tunneling current (0.01nA-50nA) is converted into a voltage by a current amplifier. To get a linear response with respect to the tunneling gap (the current is exponentially dependant on the tip-sample distance) the signal is processed by a logarithmic amplifier. The output of the logarithmic amp ...
Hot-Wire Anemometry
... Anemometer signal output The thermal anemometer provides an analogue output which represents the velocity in a point. Velocity information is thus available ...
... Anemometer signal output The thermal anemometer provides an analogue output which represents the velocity in a point. Velocity information is thus available ...
4.2_Multphase_presentation
... A typical worst-case load transient is when the CPU current snaps from full load to no load, causing the control loop to immediately shrink the duty cycle to zero, and the energy stored in the inductor dumped into the output capacitors. The left figure below shows such a load transient in a single-p ...
... A typical worst-case load transient is when the CPU current snaps from full load to no load, causing the control loop to immediately shrink the duty cycle to zero, and the energy stored in the inductor dumped into the output capacitors. The left figure below shows such a load transient in a single-p ...
Power Fundamentals: Buck Regulator Architectures
... A typical worst-case load transient is when the CPU current snaps from full load to no load, causing the control loop to immediately shrink the duty cycle to zero, and the energy stored in the inductor dumped into the output capacitors. The left figure below shows such a load transient in a single-p ...
... A typical worst-case load transient is when the CPU current snaps from full load to no load, causing the control loop to immediately shrink the duty cycle to zero, and the energy stored in the inductor dumped into the output capacitors. The left figure below shows such a load transient in a single-p ...
1- A resistor is a device. It adds resistance to a circuit . BY
... 1-The standard power supply available from local electric utility companies. It changes its direction of flow (cycles) 2- A motor operating on current that flows in either direction. There are two general types: induction and synchronous. 3- The space between the rotating (rotor) and stationary (st ...
... 1-The standard power supply available from local electric utility companies. It changes its direction of flow (cycles) 2- A motor operating on current that flows in either direction. There are two general types: induction and synchronous. 3- The space between the rotating (rotor) and stationary (st ...
NSPB-LV/MV Contents
... The 3 types of current supply loss of metal materials are shown below. 1) Hysteresis loss (iron loss) 2) Eddy-current lose (induced current loss) 3) Copper loss. These losses eventually increase loss resistance. Compared to the characters of steel, a ferromagnetic body and high permeability, using a ...
... The 3 types of current supply loss of metal materials are shown below. 1) Hysteresis loss (iron loss) 2) Eddy-current lose (induced current loss) 3) Copper loss. These losses eventually increase loss resistance. Compared to the characters of steel, a ferromagnetic body and high permeability, using a ...
Services and Service Equipment CEC-6
... In order to comply with Rule 10-208(2), feeders supplying buildings housing livestock shall have a dedicated bonding conductor included with the feeder. The grounded circuit conductor (neutral) supplying buildings housing livestock shall be grounded only at the source or main service. An accepted is ...
... In order to comply with Rule 10-208(2), feeders supplying buildings housing livestock shall have a dedicated bonding conductor included with the feeder. The grounded circuit conductor (neutral) supplying buildings housing livestock shall be grounded only at the source or main service. An accepted is ...
Long Length Characterization of CC Tapes
... We could now determine Ic(x, Bo, θ=0) and Ic(x, Bo, θo) , where Bo is a fixed field, and θ is the angle at which the field is applied (θ=0° is the c axis) and θ is typically 90° (ab plane) or perhaps 45° ...
... We could now determine Ic(x, Bo, θ=0) and Ic(x, Bo, θo) , where Bo is a fixed field, and θ is the angle at which the field is applied (θ=0° is the c axis) and θ is typically 90° (ab plane) or perhaps 45° ...
Skin effect
Skin effect is the tendency of an alternating electric current (AC) to become distributed within a conductor such that the current density is largest near the surface of the conductor, and decreases with greater depths in the conductor. The electric current flows mainly at the ""skin"" of the conductor, between the outer surface and a level called the skin depth. The skin effect causes the effective resistance of the conductor to increase at higher frequencies where the skin depth is smaller, thus reducing the effective cross-section of the conductor. The skin effect is due to opposing eddy currents induced by the changing magnetic field resulting from the alternating current. At 60 Hz in copper, the skin depth is about 8.5 mm. At high frequencies the skin depth becomes much smaller. Increased AC resistance due to the skin effect can be mitigated by using specially woven litz wire. Because the interior of a large conductor carries so little of the current, tubular conductors such as pipe can be used to save weight and cost.