Current Reset Type
Eaton's Cooper Power series S.T.A.R. Current Reset (CR) Faulted Circuit Indicators are designed to quickly and easily locate faulted sections of cable systems. These faulted circuit indicators (FCIs) can be installed on pad-mounted distribution transformers, sector cabinets, switchgear and overhead bare conductors. The closed core current transformer (CT) senses the fault current and provides power to operate the FCI. The unit automatically resets back to the normal position when the continuous current exceeds the 2.4 A reset value. CR FCIs provide a reliable means of fault location and isolation. They also eliminate fault chasing methods that are costly and time consuming, and very stressful on system components exposed to fault currents. Installation can be achieved on a wide range of cable diameters with a single hotstick.
|Electrial Ratings and Characteristics||Refer to Catalog CA320008EN|
- An inrush restraint feature eliminates false tripping and is standard on all units. The S.T.A.R. Faulted Circuit Indicator will ignore inrush currents caused by reclosing operations of protective devices on the system. A dead time of 200 ms will activate the inrush restraint feature.
- A low pass filter, also a standard feature, will prevent the S.T.A.R. Faulted Circuit Indicator from tripping on high frequency transients like those caused by capacitive discharges.
- The quick response time of the S.T.A.R. Current Reset Faulted Circuit Indicator provides easy coordination with current-limiting fuses and other protection devices.
- This unique combination of standard features makes the S.T.A.R. Faulted Circuit Indicator extremely reliable.