SE-325ENT - SE-325 Series

Series: SE-325
Questions? Contact Littelfuse Support
External overview image
Roll Over to Zoom
 

The SE-325 Neutral-Grounding-Resistor Monitor is used on resistance-grounded systems up to 25 kV to monitor the integrity of the neutral-to-ground path and to detect ground faults. It measures current and voltage in a transformer or generator neutral-to-ground connection and continuity of the neutral-grounding resistor (NGR). The SE-325 coordinates these three measurements to detect a loose connection, corrosion, ground fault, or NGR failure, and provides one alarm or trip output contact.

Property (Mouseover for details) Value
Relay Contacts Config 1 Form A (N.O.)
Supply Voltage ac 240
IEEE Device Numbers 50G - 50N - 51G - 51N - 59N - 86
Relay Contacts Operation Fail-safe / Non Fail-safe
Weight (lbs/g) 0 Kg
Auto Manual Reset Non-latching
Conformally coated Standard
Frequency 50; 60; ASD
GF Trip Level A 0.5 - 4.0
GF Trip Time s 0.1 - 5.0
Harmonic Filtering Standard
Reset Type Front-panel switch/Remote Kit
RF Trip Level V 20 - 400 (systems up to 5 kV); 100 - 2000 (systems over 5 kV)
RF Trip Time s 5
System type Resistance Grounded AC
To request product environmental information, please complete the Product Environmental Information Request Form.