Fault indicators

Pathfinder MK Range

  • Nominal voltage 6 kV a 66 kV
  • Min. fault current 4 A
  • Fault indication Via red flag & SMS
  • Installation 1 product per pole
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  • big_Pathfinder_MK_Range_2.jpg
  • big_pathfinder MK9B.jpeg
  • big_Pathfinder_MK_Range_1.jpg
  • big_Pathfinder_MK_Range_2.jpg
  • big_pathfinder MK9B.jpeg

Function

The STREAMER Pathfinder MK are portable fault indicators. They are intended to be used by the line's operation or maintenance team when a fault appears on the line. The Pathfinder MK helps to locate the faults phase to phase or phase to ground on the line and therefore sensibly reduces the downtimes.



Operation principle

The STREAMER Pathfinder MK Fault Indicators sense out of balance electromagnetic fields in a single or 3-phases medium voltage network. Sensing is triggered when it detects fault current, above the current/time threshold curve, passing in the line conductors. The STREAMER Pathfinder MK will indicate the fault by showing a bright red mechanical flag and/or by sending the information by SMS.

1. Place the Pathfinder MKs at the beginning of each section

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2. Close the main breaker and check the Pathfinder MKs to find the faulty section

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3. Move the Pathfinder MKs to the faulty section and repeat step 2 in order to isolate the fault accurately

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Technical characteristics

MODEL

PATHFINDER MK8
NEW
PATHFINDER MK98

PATHFINDER MK10
APPLICATION Temporary Temporary Temporary
INSTALLATION On pole (wooden, metal, concrete) On pole (wooden, metal, concrete) On pole (wooden, metal, concrete)
OPERATING VOLTAGE <110 kV <110 kV <110 kV
CURRENT TRIPPING High Sensivity 14A
Low Sensivity 72A
Sensetive earth 4А
Normal 15А
High Sensivity 14A
Low Sensivity 72A
RESPONSE TIME min 20 ms min 40 ms min 20 ms
INDICATION Flag Flag Flag + COM
FAULT DETECTED
P-P Yes Yes Yes
P-G Yes Yes Yes
COMMUNICATION No No GSM/GPRS
CONFIGURATION Manual Manual Мanual or СОМ
RESET Manual Manual Мanual or СОМ
TEST Manual Manual Мanual or СОМ
LIVE LINE INSTALLATION Yes Yes Yes
BATTERY LIFE 6 years 10 years 5 years
TEMPERATURE -20°C to +70°C -20°C to +60°C -20°C to +70°C
PROTECTION CLASS IP67 IP67 IP67
OPTION 3 pcs carry-on case 3 pcs carry-on case 3 pcs carry-on case


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Accessories

A case for up to 3 MK is available to store and move the sensitive devices securely.

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