The SE-134C/SE-135 is a microprocessor-based, combination ground-wire monitor and ground-fault relay for resistance-grounded or solidly grounded systems. It continuously monitors the integrity of the ground conductor to protect portable equipment from hazardous voltages caused by ground faults. The SE-134C/SE-135 is field proven in monitoring trailing cables on large mobile equipment such as drag-lines, mining shovels, shore-to-ship power cables, dock-side cranes, stacker-reclaimers, submersible pumps, and portable conveyors.

Features & Benefits:

 

• Adjustable pickup (0.5 - 12.5 A for SE-CS10) (2 - 50 A for SE-CS40): Unit can be used on a wide variety of trailing cable applications
• Adjustable time delay (0.1 - 2.5 s): Adjustable trip delay for quick protection and system coordination
• Output contacts: Separate annunciation of ground-fault and ground-check faults
• Ground-check LED indication: Indication of open or short ground-check wire makes it easier to find faults
• CT-loop monitoring: Alarms when CT is not connected
• High-induced-ac rejection: Makes unit suitable for applications with high voltages and long cables
• DFT (Harmonic) filter: Prevents false operation
• Zener-characteristic termination assembly: Provides reliable ground-check loop verification
• Fail-safe circuits: Ensures ground-check and ground-fault circuits remain safe even in the event of equipment failure
• Conformal coating: Additional coating protects circuit boards against harsh environment
• XGC option: Increases maximum cable length for ground-check monitoring (10 km typical)

Documents and Downloads

Document	File Type	File Size	Download
SE-135 Series Datesheet	PDF	291 KB