Title :
A new low frequency high voltage insulation analyzer using transient methods
Author :
Steiner, J.P. ; Quinlan, J.P. ; Braun, J.M. ; Morra, R.M. ; Sedding, H.G.
Author_Institution :
AVO Biddle Instrum., Blue Bell, PA, USA
Abstract :
The authors present the results obtained on several aged cable insulation types using very low frequency (⩽1 Hz) tan δ measurements performed in the laboratory. The large changes in tan δ recorded as a function of aging prompted the development of a field instrument capable of performing high-voltage low-frequency measurements on long lengths of aged cables. The authors present the critical requirements which must be met in designing an instrument for performing such low-frequency measurements in the field and provide an illustration of typical results. Preliminary measurements indicate that the analyzer will provide a technique with which to evaluate aging of power, control, and instrumentation cables in power stations
Keywords :
cable insulation; cable testing; dielectric loss measurement; high-voltage techniques; insulation testing; portable instruments; power cables; time-domain analysis; transient analysers; aged cable insulation; control cables; field instrument; high voltage; instrumentation cables; insulation analyzer; loss tangent; low frequency; power cables; time domain dielectric spectrometer; transient methods; Aging; Cables; Circuit testing; Current measurement; Dielectric measurements; Frequency measurement; Instruments; Insulation testing; Low voltage; Transient analysis;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1992. Annual Report. Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-0565-5
DOI :
10.1109/CEIDP.1992.283167
