Wyniki wyszukiwania - BazTech

Ograniczanie wyników

1 Prace Naukowe Instytutu Podstaw Elektrotechniki i Elektrotechnologii Politechniki Wrocławskiej. Konferencje

1 2004

Powiadomienia systemowe

Sesja wygasła!

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: ceramic post insulator

Sortuj według:

Ogranicz wyniki do:

New ultrasonic equipment for non-destructive diagnostics of ceramic insulators in place of exploitation

Ranachowski P., Rejmund F., Zienkiewicz B.

Prace Naukowe Instytutu Podstaw Elektrotechniki i Elektrotechnologii Politechniki Wrocławskiej. Konferencje

2004

Vol. 40, nr 15

169-176

The paper presents designed and experienced in IFTR PAS apparatus - acoustic instrument for materials parameters investigation of special assignment. The presented set-up is mainly expected to serve for ultrasonic measurements of long-rod insulators in use on site. The main object of research are insulators after long period of exploitation, showing high degree of material ageing process advancement. Diagnostics of such elements requires definite parameters of work of a sending-receiving unit, piezoelectric transducers of special construction, elaboration of proper methodology of ultrasonic measurements along with criteria of the object classification. Presented equipment is the result of many years experience of non-destructive acoustic research of long-rod ceramic insulators. This equipment was specially adopted for the field tests on the overhead lines and stations. The composition of the set-up, principle of its work and the calibration procedure with standardized blocks were described. The measurements of post insulator SWZPAK-110 type from 1976 year illustrate possibilities of application of the set-up. A microscopic structural analysis was used as comparative method. Correlation between the microstructure of the porcelain and parameters of ultrasonic wave propagation was established. The investigation proved possibility to employ the apparatus for diagnostic measurements of the polymer and hybrid insulators.