SCCR Update Based on 2008 NEC ®
... When devices such as slash rated circuit breakers or motor controllers (ie 480/277) are used, the entire assembly is also limited. Per 240.85 and 430.83(E), a device, which is slash voltage rated, limits the application of that device to only solidly grounded wye systems where the voltage of any con ...
... When devices such as slash rated circuit breakers or motor controllers (ie 480/277) are used, the entire assembly is also limited. Per 240.85 and 430.83(E), a device, which is slash voltage rated, limits the application of that device to only solidly grounded wye systems where the voltage of any con ...
LA1235
... phenomenon is caused by the fact that the noise component to be applied to the quadrature multiplication circuit is not syummetric with respect to 10.7MHz but is shifted toward lower frequency side because the frequency characteristic of IF amplifier attenuates at high frequencies and the phase shif ...
... phenomenon is caused by the fact that the noise component to be applied to the quadrature multiplication circuit is not syummetric with respect to 10.7MHz but is shifted toward lower frequency side because the frequency characteristic of IF amplifier attenuates at high frequencies and the phase shif ...
Precise Fault Locator
... introduce a significant improvement of the fault location. The advantages of the “two ended” fault locator are: The fault location of resistive fault is, independent of the load current and line length accurate. The algorithm only utilises the positive and negative sequence impedance. The zero seque ...
... introduce a significant improvement of the fault location. The advantages of the “two ended” fault locator are: The fault location of resistive fault is, independent of the load current and line length accurate. The algorithm only utilises the positive and negative sequence impedance. The zero seque ...
MAX3205E/MAX3207E/MAX3208E Dual, Quad, and Hex High-Speed Differential ESD-Protection ICs General Description
... the MAX3205E/MAX3207E/MAX3208E as close to the connector (or ESD contact point) as possible. A low-ESR 0.1µF capacitor is recommended between VCC and GND in order to get the maximum ESD protection possible. This bypass capacitor absorbs the charge transferred by a positive ESD event. Ideally, the su ...
... the MAX3205E/MAX3207E/MAX3208E as close to the connector (or ESD contact point) as possible. A low-ESR 0.1µF capacitor is recommended between VCC and GND in order to get the maximum ESD protection possible. This bypass capacitor absorbs the charge transferred by a positive ESD event. Ideally, the su ...
Guidance on the management of safe procedures for
... three-phase and neutral distribution board shown in the photograph. He energised the supply to the distribution board before the circuits connected to it were complete, to provide a supply to a socket-outlet. He was connecting the supply cables to a wall-mounted timer unit, with the line conductor c ...
... three-phase and neutral distribution board shown in the photograph. He energised the supply to the distribution board before the circuits connected to it were complete, to provide a supply to a socket-outlet. He was connecting the supply cables to a wall-mounted timer unit, with the line conductor c ...
Electrical System Bonding and Grounding
... A grounding electrode conductor (GEC) connects equipment or the grounded circuit of a wiring system to a grounding electrode. It must be a continuous unspliced conductor from its point of attachment at the grounding electrode to its point of attachment at the service or it may be spliced under speci ...
... A grounding electrode conductor (GEC) connects equipment or the grounded circuit of a wiring system to a grounding electrode. It must be a continuous unspliced conductor from its point of attachment at the grounding electrode to its point of attachment at the service or it may be spliced under speci ...
Electrical Safety in the Workplace
... For systems 600 volts or less, the default boundary is 4 feet FN000385/CR, Electrical Safety in the Workplace ...
... For systems 600 volts or less, the default boundary is 4 feet FN000385/CR, Electrical Safety in the Workplace ...
A CMOS Low-Dropout Regulator With Current
... drawback of linear regulators is their reduced power efficiency, which is determined by dropout voltage of regulation FET. LDRs provide low output noise and high power efficiency with low dropout voltage of pass device, they shield sensitive blocks from high frequency fluctuations on the power suppl ...
... drawback of linear regulators is their reduced power efficiency, which is determined by dropout voltage of regulation FET. LDRs provide low output noise and high power efficiency with low dropout voltage of pass device, they shield sensitive blocks from high frequency fluctuations on the power suppl ...
2005 Code Changes
... coordination of overcurrent devices fits well with the other requirements such as: • 700.4 maintenance and testing requirements • 700.9(B) emergency circuits separated from normal supply circuits • 700.9(C) wiring specifically located to minimize system hazards • 700.16 failure of one component must ...
... coordination of overcurrent devices fits well with the other requirements such as: • 700.4 maintenance and testing requirements • 700.9(B) emergency circuits separated from normal supply circuits • 700.9(C) wiring specifically located to minimize system hazards • 700.16 failure of one component must ...
MAX1739/MAX1839 Wide Brightness Range CCFL Backlight Controllers General Description
... increases the operating life of the transformer and eases its design requirements. These controllers also provide protection against many other fault conditions, including lamp-out and buck short faults. These controllers achieve 50:1 dimming range by simultaneously adjusting lamp current and “chopp ...
... increases the operating life of the transformer and eases its design requirements. These controllers also provide protection against many other fault conditions, including lamp-out and buck short faults. These controllers achieve 50:1 dimming range by simultaneously adjusting lamp current and “chopp ...
MAX3863 - Maxim Part Number Search
... Excluding IBIAS, IMOD, IBIASMON, IMODMON, IFAIL, and IPWC. Input clock and data are AC-coupled. Guaranteed by design and characterization. An external capacitor at APCFILT1 and APCFILT2 is used to set the time constant. For both data inputs DATA+, DATA- and clock inputs CLK+, CLK-. Measured using a ...
... Excluding IBIAS, IMOD, IBIASMON, IMODMON, IFAIL, and IPWC. Input clock and data are AC-coupled. Guaranteed by design and characterization. An external capacitor at APCFILT1 and APCFILT2 is used to set the time constant. For both data inputs DATA+, DATA- and clock inputs CLK+, CLK-. Measured using a ...
AC testing of cables and electrical apparatus is now easier than ever.
... diagnostic testing. HVI can serve the needs of the loads like cables and motors/generators. The lowerMICROFARADS the frequency of an AC source, the lower the cur- industry for cable testing better than any other. START rent and power required to apply a voltage to a ca- Contact HVI for additional in ...
... diagnostic testing. HVI can serve the needs of the loads like cables and motors/generators. The lowerMICROFARADS the frequency of an AC source, the lower the cur- industry for cable testing better than any other. START rent and power required to apply a voltage to a ca- Contact HVI for additional in ...
Singing Tesla Coil: Building a Musically
... 3.2 The Tesla Coil In 1891, Nikola Tesla invented one of his most famous devices, the Tesla coil. To be fair, electrical coils existed before Nikola Tesla. Ruhmkorff coils, named after Heinrich Ruhmkorff and designed by Nicholas Callan in 1836, converted low voltage DC to high voltage DC spikes. [9] ...
... 3.2 The Tesla Coil In 1891, Nikola Tesla invented one of his most famous devices, the Tesla coil. To be fair, electrical coils existed before Nikola Tesla. Ruhmkorff coils, named after Heinrich Ruhmkorff and designed by Nicholas Callan in 1836, converted low voltage DC to high voltage DC spikes. [9] ...
Polylux_Comp_gb1.pps
... therefore practically zero in a balanced system There is no phase shift between the 3rd harmonic currents therefore in the neutral you get the sum of all 3rd harmonic currents ...
... therefore practically zero in a balanced system There is no phase shift between the 3rd harmonic currents therefore in the neutral you get the sum of all 3rd harmonic currents ...
