Lodestar CL2
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Lodestar CL2

Fault Locator Lodestar CL HV
Fault Locator Lodestar CL HV
Lodestar CL4 set


Lodestar CL2 was designed especially for medium voltage utility overhead lines. It ensures 99% accuracy of detection of load currents from 2A. CL2 is provided with current and voltage unique measurement algorithms and outstanding fault detection capabilities. Three devices Lodestar CL2 located on different phases of the line perform synchronous vector measurements.

Lodestar CL2 can be integrated into an existing SCADA or smart grid system and can operate in various communication environments. Pole-mounted communication equipment (Smartbox or Ligthbox) receives and manages all data and acts as a reciever for communcation environment.

Lodestar CL2 benefits:

• Can be used in networks with any types of neutral grounding;
• Detects and indicates all types of faults: phase to phase, phase to ground, multiple phase faults, permanent and transient faults;
• Vector calculations — synchronous measurement of currents – allow Lodestar to deal with phases as well as magnitudes;
• Minimum fault sensing PtG 2A;
• Flexible configuration — a rich set of configurable parameters enables adaptation to a variety of customer needs.

Technical characteristics

Lodestar model CL25 CL25B CL4 CL2 CL0.5
Operating voltage 6-35 kV
MIN fault sensing 25A 25A 4A 2A 0.5A
Absolute current threshold 100А, 250А,
500А, 1000А
25A to 1000А 20A to 1000А
Differential current threshold 50%, 100%,
25A, 100A,
200A, 500A
25А to 500A
50% to 500%
20А to 500A
50% to 500%
Response time 20 ms 20 ms
Inrush resistance 0 to 200 ms 0 to 200 ms
Fault detected  
Phase to Phase
Single-phase short circuit
Phase to Ground
(from 25 A)

(from 25 A)
Fault phase indication
Fault direction indication
Current withstand 25 kA / 500 ms
Communication No Smartphone via BLE, 3G/4G to SCADA system via Combox
Adjustable reset time 6, 12, 24, 48 hours 1h to 7d
Reset Time, Magnet
Reenergized line
Smartphone with Lodestar App, Time, Combox, Reenergized line
Test Magnet Remote, Magnet, Smartphone with Lodestar App
Battery life 10 years 7 years
Total indicating time >1000 hrs
Temperature -40°C to +75°C



Our customers

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