FPI - Fault Passage Indicator

Radius FPI 100 fault passage indicator is constructed for application to distribution networks where automated switchgear are installed.

Operational features
When a fault is detected the indicator operates alarm contacts for remote indication and illuminates an integral LED. Indicators placed in the distribution network aid identification of faulty sections of the network. Where a fault occurs the FPI can provide alarms for over currents, earth-faults, sensitive earth faults and persistent current alarms for non-tripping situations. Temporary faults can be discovered with extended indicating times allowing planned inspection of suspect line sections. For permanent faults the indicating period is selectable for up to 6 hours, while for a transient fault the indicating period is 24 hours.

Technical Information
Technical Data
Mounting	DIN Rail
Size	H80 x W92 x D40 H3.15 x W3.62 x D1.57 inch Auxiliary Resistor Unit - H78 x W45 x D50 Auxiliary Resistor Unit - H3.07 x W1.77 x D1.97 inch
Temperature Range	-25^oC to + 70^oC
Power Supply	9 to 30 VDC (24 V normal) Passive current 30 mA
Mains Sensing	40 VAC to 250 VAC
Reset
1	Local push button, Press until both LED's stay on.
2	Remote pulsed reset signal from local telemetry system (9-48) VDC of more than 0.5 sec. duration
3	On completion of timing period
Threshold Current
Over-current	(CT secondary) 0.5 A, 0.74 A, 1.0 A and 1.25 A (±15%) for a 500/1 CT the setting above are equivalent to: -250 A, 375 A, 500 A and 635 A
Earth-fault	(CT secondary) 0.08 , 0.12 A, 0.16 A, and 0.2 A (±15%) 0/1 CT above re equivalent to: 40 A, 60 A, 80 A and100 A.
Earth-fault	(Core CT secondary) A single setting of 0.833 A (±

Downloads

FPI Product Brochure (A4) (0.24 MB)