Lodestar CL0.5
Lodestar CL0.5 was designed to work in isolated and compensated networks with extremely low levels of residual current. Lodestar CL0.5 has high accuracy of all types of faults detection.
The registering of faults is based on special intelligent algorithm, that makes possible to detect PtG fault and its direction from 0.5A. Real time sensors communication open up a wide range of communication sensors possibilities for data analysis.
Lodestar CL0.5 benefits:
• Detection of direction of all types of faults;
• Different indication patterns: via ultra brigt LEDs, in SCADA system or in Lodestar App;
• Extended memory. More than 200 last events can be saved in the memory and displayed in Lodestar App;
• Super sensitivity. Detects all types of faults from 0.5A;
• Can be used in any types grids with any types of neutral grounding;
• Used in radial and double-fed lines;
• Auto-adjustable PtG detection – no need to tune the residual current threshold.
Technical specifications
| PARAMETER | VALUE |
| Operating parameters | |
| Operating voltage | 6-35 kV 36-70 kV (option with Faraday cage) |
| Operating current | 0-1000 A |
| Operating frequency | 50/60 Hz |
| Conductor size | 5-40 mm / 19,6-1256 mm² |
| Fault sensing | |
| Type of faults | PtP faults PtG faults Transient faults |
| Detection of earth fault direction | Forward & Backward (Lodestar CL0.5)* |
| Absolute threshold | 20 A ... 1000 A |
| Differential thresholds | 20 A … 500 A / 50 % ... 500 % |
| Minimum fault sensing (PtG) Zero sequence thresholds/3I0 |
0.5 – 100 A (Lodestar CL0.5) 2 – 100 A (Lodestar CL2) 4 – 100 A (Lodestar CL4) |
| Response time | 20 ms |
| Fault notification | |
| Visual | Ultra bright LED (white) - 100 m – day time @sunny weather - 500 m – night time |
| Resistance | |
| Current withstand | 25 kA /500 ms |
| In-rush resistance | 0-200 ms /step 20 ms |
| Communication | |
| Short-range communication technology | Built-in BLE module, 50 m |
| On-site configuration and control | Mobile App Lodestar (Android, iOS) |
| Long-distance communication | Pole-mounted communication box (GSM) |
| Fault management software | KOMORSAN |
| Reset | |
| By timer | 1 hour ... 8 days (configurable) |
| Remote | Lodestar App, KOMORSAN |
| Reenergized line | By voltage |
| Manual | Magnet |
| Physical characteristics | |
| Dimensions | 140 x 114 x 158 mm |
| Weight | 0.55 kg |
| Housing | UV resistant polycarbonate |
| Ambient conditions | |
| Temperature range | -40 ... +75 °C |
| IP protection | IP68 |
| Salty fog | Resistant (IEC 60068-2-11) |
| Installation | |
| Installation tools | Dielectric rod Lodestar hotstick tool adaptor |
| Installation method | Live line |
| Battery | |
| Battery type and capacity | Lithium, 19 Ah, 3.6 V |
| Battery life time | >1000 h, >7 years |
| Low battery alarm | At 20 % of remaining battery load - visual by LED blinking (yellow color) - KOMORSAN notification |
| Other | |
| Applicable standards | ANSI / IEEE 495 |
| Internal memory | 20 000 events |
| Measured telemetry parameters | Currents (10-15% accuracy) Voltage absence/presence |
*Only for isolated neutral grounding. Min 5 km behind FPIs is required.
