DocumentCode :
3465970
Title :
Method for static and dynamic resistance measurements of HV circuit breaker
Author :
Stanisic, Zoran
Author_Institution :
Megger Sweden AB, Stockholm, Sweden
fYear :
2011
fDate :
5-7 Dec. 2011
Firstpage :
1
Lastpage :
5
Abstract :
S/DRM testing methods usually use long, heavy cables to connect high current source from ground to the circuit breaker. Alternative is to move current source close to the circuit breaker by using heavy batteries, transformers, dc/dc etc. In new proposed method batteries are replaced with ultra capacitors and constant current charger, resulting in a few hundred grams of powerful current source, capable to generate few hundred amperes into the breaker contacts, or any other power contacts. Measuring voltage drop across the circuit breaker and the current through it continuously monitors discharging of ultra capacitors, giving a high accurate resistance value of the measured object.
Keywords :
circuit breakers; constant current sources; electrical contacts; power cables; supercapacitors; HV circuit breaker; S-DRM testing method; battery; breaker power contact; constant current charger; dynamic resistance measurement; high current source connection; power cable; static resistance measurement; transformer; ultracapacitor; voltage drop measurement; Accuracy; Capacitors; Circuit breakers; Current measurement; Electrical resistance measurement; Resistance; Voltage measurement; circuit breaker; contact resistance; ultra capacitor;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Innovative Smart Grid Technologies (ISGT Europe), 2011 2nd IEEE PES International Conference and Exhibition on
Conference_Location :
Manchester
ISSN :
2165-4816
Print_ISBN :
978-1-4577-1422-1
Electronic_ISBN :
2165-4816
Type :
conf
DOI :
10.1109/ISGTEurope.2011.6162618
Filename :
6162618
Link To Document :
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