The SE-701 is a microprocessor-based ground-fault relay for resistance and solidly-grounded systems. In addition to common systems, it is uniquely suited for use on systems with significant harmonic content. The SE-701 can provide main-plant protection, feeder-level protection, or individual-load protection. Proper current transformer selection provides the desired pickup range. The output contacts can be connected for use in protective tripping circuits or in alarm indication circuits. The analog output can be used with a PLC or a meter.

Features & Benefits:

 

• Adjustable pickup (1-99%): Trip setting based on input CT primary, allows use with any CT. Minimum 50 mA with EFCT Series.
• Adjustable time delay (50 ms-2.5 s): Adjustable trip delay allows quick protection and system coordination
• Output contacts: Form A and Form B ground-fault output contacts for operation of separate annunciation and trip circuits
• Analog output (0-5 V): Allows for connecting an optional meter (PGA-0500) or a control system
• CT-Loop monitoring: Alarms when CT is not connected
• Selectable DFT or peak detection filtering: Compatible with variable-speed drives
• Harmonic filtering: Eliminates nuisance tripping
• Non-volatile trip memory: Retains trip state while de-energized to simplify troubleshooting
• Microprocessor based: No calibration required, saves on maintenance cost
• Universal power supply: Allows operation in application where one side of PT is faulted, provides flexibility for numerous applications

Documents and Downloads

Document	File Type	File Size	Download
SE-701 SERIES Datesheet	PDF	442 KB