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Surge voltages and currents

Surge Voltages and Currents to Customers Due to Nearby Lightning... [Pg.13]

Ametani, A., K. Matsuoka, H. Ohmura, and Y. Nagai. 2009. Surge voltages and currents into a customer due to nearby lightning. Electric Power Syst. Res. 79 428-435. [Pg.471]

The same theory will apply in capacitor switching except that the interrupting current will now be leading the voltage by almost 90° instead of lagging. See also Section 23.5 to determine the amount of surge voltages and inrush currents. [Pg.571]

Valve or non-linear resistor In this version, a nonlinear SiC resistance is provided across the gap and the whole system works like a preset valve for the follow current. The resistance has an extremely low value on surge voltages and a very high one during normal operations to cause a near-open circuit. It is now easier to interrupt the follow currents. [Pg.589]

In addition to amplification, excitation, and filtering, signal-conditioning devices may provide isolation, voltage division, surge protection, and current-to-voltage conversion. [Pg.3687]

Fig. APII/4.1.3-1 shows the typical configuration for SPDs. As seen in the figure, there is protection both in differential mode (line to line) and common mode (line to earth). GDT, discussed previously, provides the first switching action to divert high voltage and current. Second elements comprising TVS provides the second line of defense especially for slower responding surges. Inductors are used to decouple the two protection stages. Basic purpose and functioning of various components have already been discussed in previous clause. Fig. APII/4.1.3-1 shows the typical configuration for SPDs. As seen in the figure, there is protection both in differential mode (line to line) and common mode (line to earth). GDT, discussed previously, provides the first switching action to divert high voltage and current. Second elements comprising TVS provides the second line of defense especially for slower responding surges. Inductors are used to decouple the two protection stages. Basic purpose and functioning of various components have already been discussed in previous clause.
FIGURE 6.9 A disturbed circuit for Case No. 1 (a) disturbed circuit, (b) flow of the surge voltage, and (c) countermeasures. Table 6.8 Recommended Values of Lightning Currents Flowing into a Ground Mesh... [Pg.428]

When a small current through the coil is suddenly broken, momentarily a surge of increased current and voltage ensues. [Pg.753]

Voltage regulators and current surge protectors Heat power source... [Pg.114]

See other pages where Surge voltages and currents is mentioned: [Pg.130]    [Pg.570]    [Pg.135]    [Pg.946]    [Pg.234]    [Pg.539]    [Pg.570]    [Pg.191]    [Pg.201]    [Pg.2485]    [Pg.561]    [Pg.569]    [Pg.570]    [Pg.589]    [Pg.589]    [Pg.589]    [Pg.589]    [Pg.592]    [Pg.612]    [Pg.634]    [Pg.647]    [Pg.706]    [Pg.729]    [Pg.793]    [Pg.92]    [Pg.234]    [Pg.432]    [Pg.125]    [Pg.509]    [Pg.281]    [Pg.2240]    [Pg.386]    [Pg.835]    [Pg.2489]    [Pg.144]    [Pg.44]   


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Surge Voltages and Currents into Customers due to Nearby Lightning

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