Lodestar CL2


Description
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 | < 70 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%, 200% 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 +85°C |