منابع مشابه
Electromagnetic Losses in Magnetic Shields for Buried High Voltage Cables
The electromagnetic losses and shielding efficiency of shields for a buried three phase high voltage cable are studied for several shielding configurations. The shields are U-shaped gutters covered with plates, and the power cables are positioned either in trefoil or in flat configuration. The shielding efficiency and the losses are compared for shields with the same geometry but several shield...
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The response of a cable can be used to analyze the variation of the material characteristics along its length. For diagnosis of possible ageing, it is necessary to know how cable design, material properties and cable insulation ageing affects the wave propagation. A cable model has therefore been worked out based upon the high frequency properties of the cable insulation and conductor systems. ...
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This paper presents the numerical simulations of a direct lightning stroke into an open air HV (high-voltage) substation. Lightning current flowing through the conductive earthed structures over the ground and in grounding grids induced transients in low-voltage control cables. In calculation the different striking points, soil parameters and arrangements of cables have been taken into account.
متن کاملElectric Insulation Detection Method for High-voltage Insulators
The principle of partial discharge detection is that through partial bridged discharge under high voltage electric field, it detects the inner air-filled cavity of high-voltage insulators. And it is a nondestructive detection method based on discharge magnitude to judge the insulation quality. The detecting system that adopts the partial discharge detection is more rigorous than testing system ...
متن کاملMicrocontroller Based High Voltage Pulse Electric Field Generator for Pasteurization
In This paper describes the design and implementation of Microcontroller based High Voltage pulse electric field generator for Liquid food pasteurization. It generates a high voltage (15 kV) approximately in the frequency range from 250 Hz to 30 kHz. This high voltage applied for food pasteurization, which is placed between two electrodes.
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ژورنال
عنوان ژورنال: Transactions of the American Institute of Electrical Engineers
سال: 1903
ISSN: 0096-3860,2330-9431
DOI: 10.1109/t-aiee.1903.4764377