Current Reset Fault Indicators can be installed on both underground and overhead systems. CRs are powered by the load current present on an energized line. A CR indicator will respond to a fault and remain in the faulted-display condition until the line is energized with normal line load at which time it will automatically reset. For underground applications, three-phase versions are available with integral and remote displays.
UV-stabilized housings, stainless steel, and vinyl-coated clamping mechanisms make CR Fault Indicators suitable for use in the harsh environments of overhead and underground applications.
Years of Maintenance-Free Operation—Apply this energy-harvesting fault indicator in pad-mounted and underground distribution equipment without elbow test points.
Ideal Fault-Finding Solution—Apply to primary 200 A class and 600 A class URD feeders in any medium-voltage radial distribution circuit. Install on medium-voltage primary underground cable applications or on low-voltage secondary lines in industrial environments. The unit automatically resets upon restoration of load current.
Time Savings and Safety—Use remote display options, such as the RadioRANGER Wireless Fault Indication System, to eliminate the need to open a pad-mounted or subsurface enclosure to determine fault status.
Report Back to SCADA—Choose the auxiliary contact option for SCADA compatibility.
|Current Reset||Load current ≥3 A|
|Current Reset||100 to 1200 A|
|Fault Powered||200 to 800 A|
|Maximum Fault||Current 25 kA for 10 cycles|
|Trip Response Time|
|Current Reset||1 ms|
|Fault Powered||8 ms nominal (function of current)|
|Outer Diameter Clamping Range||0.75" to 2.10" (please specify clamping diameter or range when ordering)|
|Reset Requirements||3 A|
|Housing Material||UV-stabilized polycarbonate resin|
|Clamp Material||Vinyl-coated silicon steel|
|Submersibility||Up to 15 feet|
|Temperature Range||—40° to +85°C|