Research on the non-contact early warning of dangerous electric field by overhead transmission lines

ABSTRACT

High voltage transmission line circuit during maintenance, high voltage transmission lines for professional workers live working inevitable. In order to ensure safety of workers produced a variety of danger electronic field warning device, and The traditional early warning mechanism of warning device in accordance with a single collected electric field values of electronic field sensor for early warning of dangerous electric field. Such as: hand-held electric field warning device according to the invention patent, the basic mechanism is based on the collection of a single electronic field values hazard warning. The disadvantage of such a warning is susceptible to this single sensor, subject to environmental impact, warning instability. Based on the Charge Simulation Method analysis simulation of the relationship between the height difference and the electric field difference under the same high voltage transmission lines at the same time come up with a warning mechanisms base on electronic field and the difference of electric field values, compare with traditional electronic field warning device it is can improve the accuracy and stability of the warning.

KEYWORDS:

• Field warning
• electric field difference
• charge simulation method

Funding

This work was financially supported by China Postdoctoral Science Foundation funded project (2012M511950).