Current Transformers
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Current Transformers (CT) are used for current metering and protection in high voltage network systems. They transform the high current on the high voltage side into low current (1 or 5 A) adequate to be processed in measuring and protection instruments (secondary equipment, such as relays and recorders). A current transformer also isolates the measuring instruments from the high voltage of the monitored circuit. Current transformers are commonly used for metering and protection in the electrical power industry.
Features :
Meets all latest IEC and IS metering and protection classes, including special core classes (other standards available on request)
Low weight & minimum oil volume design. High accuracy up to 0.1 and 0.2s class
Rated primary currents up to 3000 A. Rated secondary current 1 A or 5 A
Rated short circuit withstand up to 40 kA for 3 secs
Highly refined and processed oil/paper insulation system. Available in both dead tank & live tank design
True hermetical sealing
Uniformly distributed secondary windings guarantee accurate transformation at both rated and high currents
Stable accuracy over a long period of time
Successful field experience since the manufacture of the first current instrument transformer in 2001
CTs are virtually maintenance free during a long lifetime
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