Flexible composite suppression method for ground arc in resonant grounding system

An Assessment of Power System Stability Using Resonant Grounding Technique

Resonant grounding is efficient system for grounding electrical appliances. Unlike solidly grounded system where the fault current developed keeps circulating in the system causing arcing and other heat losses which end up causing total power failure. The action of resonant grounding in Nigerian power system was critically studied in this work. In Nigerian power system, solid grounding has been...

Method and System for Gas Metal Arc Welding

An Efficient Method to Reduce the Peak Transient Grounding Resistance Value of a Grounding System

In this paper, an efficient method is proposed to reduce the peak transient grounding resistance (P-TGR) of a grounding system. By surrounding the lifting line with a material volume, the P-TGR of the grounding system is greatly reduced. The effect of the surrounding volume conductivity and relative permittivity on the P-TGR is also tested. Second, the rectangular surrounding material volume is...

What is the Ground? Continuous Maps for Grounding Perceptual Primitives

Analysis of the Symbol Grounding Problem has typically focused on the nature of symbols and how they tie to perception without focusing on the actual qualities of what the symbols are to be grounded in. We formalize the requirements of the ground and propose a basic model of grounding perceptual primitives to regions in perceptual space that demonstrates the significance of continuous mapping a...

Active Vibration Suppression of a Nonlinear Flexible Spacecraft

In this article, the issue of attitude control and active vibration suppression of a nonlinear flexible spacecraft is assessed through piezoelectric patches as actuator and sensors. Two controller loops are applied: the inner loop, to make the panel vibration damped through piezoelectric patches; and the outer loop, to perform spacecraft maneuver using the reaction wheel acting on the hub. An o...