Title :
Verification of the influence of the number of voltage applications on the performance of the protection for high voltage power frequency test transformers during disruptive discharge voltage tests
Author :
Mello, D.R. ; Silva, A.C.F.
Author_Institution :
CEPEL-Center for Electr. Energy Res., Rio de Janeiro, Brazil
Abstract :
An attempt was made to verify which of the protective circuits used, in several laboratories, for the execution of a power frequency disruptive discharge test have the better performance, using the results of tests performed on 1-meter post insulators without any protection as standard values. The tests were made with 5 voltage applications and repeated with 10 and 20 applications, for each type of protection used, in order to verify the agreement between the medium value of each group of test results. The dispersion of the results was also investigated
Keywords :
high-voltage techniques; power transformers; surge protection; test equipment; transformer protection; HV type; disruptive discharge voltage tests; high voltage power frequency test transformers; protective circuits; transient protection; voltage applications; Capacitors; Circuit testing; Flashover; Frequency; IEC standards; Inductors; Power engineering and energy; Protection; Resistors; Voltage transformers;
Conference_Titel :
Properties and Applications of Dielectric Materials, 1991., Proceedings of the 3rd International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-87942-568-7
DOI :
10.1109/ICPADM.1991.172092
