K. Iwai et al., DEVELOPMENT OF A NEW APPARATUS FOR CONTAMINATION MEASUREMENT OF OVERHEAD TRANSMISSION-LINE INSULATORS, IEEE transactions on power delivery, 13(4), 1998, pp. 1412-1417
We have developed a new apparatus capable of detecting contamination o
n insulators on overhead transmission lines. The apparatus consists of
multiple leakage current detectors with Peltier modules and features
very compact size and light weight. Accumulated contaminants can be me
asured automatically and continuously without wiping them. The apparat
us has demonstrated excellent performance in both laboratory and field
tests.