Grounding resistor monitoring system SE-701 series

continuous

The SE-701 series is a microprocessor-based, ground-fault relay for resistance-grounded and solidly grounded ac 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. Its output relay can operate in the fail-safe or non-fail-safe mode for undervoltage or shunt-trip applications. The analog output can be used with a PLC or a meter. Features Adjustable pickup (1–99 %) Adjustable time delay (50–2.5 ms) Output contacts Analog outputs (0–5 V) CT-loop monitoring Non-volatile trip memory Selectable DFT or peak detection filtering Harmonic filtering Universal power supply Microprocessor-based