The paper presents the results of experimental tests performed with impulse voltage with short tail (STLI: 1.2/4 μs) on composite insulators in use in the MV distribution lines and electric traction lines. The voltage-time to breakdown characteristics under 1.2/4 μs waves are presented and compared with the characteristics under standard lightning impulse (LI: 1.2/50 μs). Models based on the disruptive effect, as proposed by Kind [9], and modified by Chowdhuri [13], are also considered and applied in order to predict the Volt-time characteristics under standard and non standard lightning voltages. The viability of the application of these models to the tested insulators is considered and discussed.
Breakdown characteristics of MV distribution and electric traction lines insulators stressed by standard and short tail lightning impulses / A., Ancajima; I., Baran; Carrus, Alys; E., Cinieri; G., Dragan; MAZZETTI DI PIETRALATA, Carlo. - (2005), pp. 1-7. (Intervento presentato al convegno 2005 IEEE Russia Power Tech, PowerTech tenutosi a St. Petersburg nel 27 June 2005 through 30 June 2005) [10.1109/ptc.2005.4524343].
Breakdown characteristics of MV distribution and electric traction lines insulators stressed by standard and short tail lightning impulses
CARRUS, Alys;MAZZETTI DI PIETRALATA, Carlo
2005
Abstract
The paper presents the results of experimental tests performed with impulse voltage with short tail (STLI: 1.2/4 μs) on composite insulators in use in the MV distribution lines and electric traction lines. The voltage-time to breakdown characteristics under 1.2/4 μs waves are presented and compared with the characteristics under standard lightning impulse (LI: 1.2/50 μs). Models based on the disruptive effect, as proposed by Kind [9], and modified by Chowdhuri [13], are also considered and applied in order to predict the Volt-time characteristics under standard and non standard lightning voltages. The viability of the application of these models to the tested insulators is considered and discussed.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
