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Pathfinder 360 ALPHA Selection Data |
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Pathfinder 360 ALPHA - permanently installed
overhead line fault passage indicator |
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System Data |
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System Voltage |
6KV thro 132KV |
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Type of System Construction |
Wood pole - unearthed |
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Installation Location |
3 metres below lowest conductors - symetrical between outers |
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Type of pole top configuration |
Flat, triangular - two wire single phase or three wire three phase |
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Pathfinder Enclosure Data |
Polycarbonate body and screw cap - watertight to IP67 |
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O' ring seal material |
Nitrile - BS1806:1989 |
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Support bracket |
Aluminium anodised |
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Humidity seal |
0 - 100% |
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Temperature range |
Including electronics -50 degrees C to +70 degrees C |
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Power Source |
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Primary Power |
1 x Lithium Thionyl Chloride 'D' Cell 16.5AH |
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Battery Life |
10 years @20 degrees C - shelf life 15 years nominal |
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Battery Health Check |
Hold Magnet over 'Test' area on side of Pathfinder - Flashing LED
confirms OK |
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Threshold Settings |
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Type of fault |
Earth fault (including Sensitive EF) and Overcurrent fault |
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Fault Current settings |
All fault current levels above 7A |
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Initial time delay (mag inrush) |
40mS |
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Sampling rate |
Continuous full wave sampling |
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Alarm Indicators |
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Main visual indication |
Xenon gas tube - 0.24 Joules of Flash |
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Flash rate |
5 - 6 per minute |
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Power demand |
15mA.hrs when flashing |
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Secondary visual indication |
Ultra bright LED |
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Power demand |
0.65mA.hrs |
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Flashing Capacity |
up to 1000 hrs nominal at 20 degrees C |
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Alarm Configuration |
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Model 'S' - permanent faults only |
Alarms after fault current and loss of system volts |
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Xenon Resets on restoration of HV volts or 3 hr Reset time which
ever sooner |
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If supply off longer than Reset Time then LED Alarms until HV
voltage restored |
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Model 'D' - Permanent & Transient faults |
Alarms after fault current and momentary or permanent loss of
system volts |
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Xenon Resets on restoration of HV volts or 3 hr Reset time which
ever sooner |
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LED begins Flashing for 24 hours after Xenon Resets |
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Model 'F' - all faults downstream |
Alarms after fault current on one or more phases |
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of fuses - All faults |
Xenon Flashes for 3 or (6hrs) then resets - no HV voltage reset |
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Model 'FD' - all faults downstream |
Alarms after fault current on one or more phases |
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of fuses - All faults |
Xenon Flashes for 3 (or 6hrs) then resets - LED begins Flashing
for 24 hours |
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No HV voltage reset |
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Alarm Reset |
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Manual - all Alarm functions |
Swipe magnet over 'Test' mark on side of Pathfinder |
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Manual Reset overrides all Alarm Configurations detailed above. |
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Flashing Capacity |
Typical examples |
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Model 'S' - Xenon resets after 3 hours |
Capacity - 355 fault occasions |
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Model 'D' - Xenon resets after 3 hours |
Capacity - 266 fault occasions |
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& LED after 24 hours |
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