Order Publications

Reference: ISH2015_215

Type:
ISH Collection
Title:

Dielectric testing of HV vacuum interrupters during capacitive current switching

 

Abstracts

Vacuum circuit breakers are well established in the distribution voltage level due to their various advantages, e.g. frequent switching operations, low life-cycle-costs, excellent thermal arc quenching capabilities, and nearly maintenance free operation. In order to establish this technology at higher voltages, the dielectric withstand capability must be increased. E.g. non-sustained disruptive discharges, while interrupting capacitive currents, have to be identified and reduced. In this work, a special test setup to investigate this aspect on commercially available high-voltage vacuum interrupters for test voltages up to 200 kV is presented and its features are discussed. In particular, requirements in terms of measuring and analysis of low frequent pre-breakdown currents immediately after arc extinction will be presented. Furthermore, a simple procedure for an additional simultaneous measurement of high frequent pre-breakdown currents is pointed out.
 

File Size: 124,3 KB

Year: 2015

 
 
 
Download
Member
FREE free
Non member
FREE free
 

Your AccountYour Account

Password forgotten

Members

may download free of charge all publications including most recent ones


Non Members

may download free of charge publications over three years old and purchase all publications

ContactContact

For any questions in connection with the on-line library, contact:


Publications and Editions Manager

publications@cigre.org