Industrial Measuring of Pollution Effects on the Operation of High Voltage Insulations

Subject Areas : Renewable energy

Mohammad Mehdi Ghanbarian ¹ (MSc/Islamic Azad University, Kazeroon Branch)
Mohammadreza Shariati ² (Energy Research - Tehran)
Mohammad Mohammadi ³ (Assistant Professor/Shiraz University)

Received: 2009-11-05 Accepted : 2010-05-02 Published : 2010-02-01

Keywords: pollution, Insulation, ESDD, NSDD, OLCA,

Abstract :

High voltage insulators are exposed to different ambient and climate conditions the interactions of ambient condition and insulator contamination led the insulators themselves become a proper medium for conduction of current, leaving their effects on the power system. Presently, approximate and empirical numbers are used to determine the level of contamination of the insulation. As a result ,creep internals in some area do not accord to ambient conditions and are below the design level. In this power by periodic ESDD and NSDD measurements, two method  direction dust gauge DGG are used to measure the intensity of the ambient pollution on the insulator and OLCA to display and record the leaking current as appropriate criteria for the degree and type of pollution.