Programmable short-circuit and earth fault indicators – Linetroll 111K

SKU: Linetroll 111k

Code: Linetroll 111K

Linetroll 111K
is used to locate short-circuit and earth faults in overhead line distribution networks.
Linetroll 111K is a 3-phase unit fully covering the different fault configurations that may occur.

The indicators are placed at strategic locations along the line such as after branching points and sectionalisers.

It is mounted on the pole, 3-5 meters below the conductors, by means of screws or wrapping bands. Live line mounting is done safely, easily and rapidly.

Upon detecting a fault on the line, the indicator gives off an intermittent Xenon gas flash. This flash can be seen within 200-300 meters distance in bright day-light and 2-3 km at night. The lens of the indicator allows a uniform 360 degrees monitoring.

The fault indicators are provided with Lithium batteries and can be replaced after 5-10 years or 500 hours of signaling.

Parameter name


Nominal operating voltage (kV)

6 – 132

Maximum sensitivity for magnetic filed (B) Di/Dt

4; 7; 15; or 50 A for fault period > 25 ms

Power supply

Lithium battery: 3,6 V; 14,5 Ah

Dimensions (mm)

135 x 255 x 220

Operational and storage temperature range (0C)


Weight (including battery) (kg)