Back to: Overhead line fault indicators (6-70kV)

Lodestar CL25 BM-S

Technical characteristics

PARAMETER	VALUE
Power supply
Types of registered events	PtP faults PtG faults transient faults
Short-circuit current sensitivity, A	25
Automatic fault current threshold adjustment	+
Voltage monitoring	+
Zero sequence current sensitivity, A	25
Selective determination of Phase-to-Phase Fault	+
Detection of earth fault direction	-
Detection of direction of zero sequence current flow	-
Power supply from the overhead line	-
General description of devices
Operating voltage, kV	6-36
Operating frequency, Hz	50/60
Visual indication	blinking ultra-bright LEDs detection range up to 100 m (during the day), up to 500 m (at night)
LED brightness	at least 20000 mcd per LED, 360° view
Number of alarms stored in the internal non-volatile memory	up to 20 000
Remote control (for field config)	Bluetooth BLE (2,4 GHz)
Remote communication	Lodestar CLxx BM-Master is equipped with a GSM channel, for transmitting information from the indicators to the data collection server
Types of actuation control	visual by short-range radio channel (handheld remote control) remote via Komorsan & SCADA
Reset indication	voltage restoration by timer magnet from the portable control
Indicator health control	magnet portable remote control remotely
Changing settings (setpoints)	on the short-range radio channel using a portable remote control remotely using the «KOMORSAN Web-client» software.
SMS notification	up to 8 phone numbers composition of the message: GPS coordinates, type of accident, serial number
Reading GPS coordinates	+
Time to prepare the kit for repeated triggering	no more than 3 sec.
Integration with SCADA systems	connection to any existing SCADA easily via IEC 60870-5-104 by using KOMORSAN software built-in GSM modem (for Lodestar Master FPI) data transmission to SCADA system using DNP3 protocol
Source of power	2 removable lithium batteries in Lodestar CLxx BM-Master 1 removable lithium battery in Lodestar CLxx BM-Slave.
Total indication time, hours	> 2000
Indicator life, hours	130000
Battery life (in standby mode)	8-10 years
Thresholds
Absolute current threshold, A	25÷1000
Differential current threshold in A	25÷500
Differential current threshold in %	50÷500%
Current withstand (IEEE495, 4.4.7)	25 kA/500 ms
Inrush current restraint, ms	0-200
Setting the reset timer, hours	arbitrarily from 1 to 72
The minimum duration of the emergency process, s	0,02
Exploitation
Installation location	on the overhead line (conductor)
Conductor diameters, mm	5-40
Installation on live line	+
Temperature range, °С	from - 40 to + 85
Protection class	IP 68 according IEC 60529
Impact of climatic environmental factors	resistant to UV radiation resistant to wind load of 40 m/s without ice and 23 m/s with ice with 35 mm wall thickness
Impact of mechanical factors	corresponds to exploitation group M1 resistant to galloping

Lodestar CL25 BM-S is a fault indicator which is used in MV power distribution networks.

The Lodestar CL25 BM‑S fault passage indicators are mounted directly on overhead line conductors and are designed to detect all types of faults in 6–36 kV distribution networks. The Lodestar CL25 BM‑S enables fault notification systems with precise GPS coordinates for accurate fault location.

Benefits:

Built‑in GSM module – direct data transmission, no additional equipment required.
No external concentrator – reduces system cost and complexity.
Hot‑stick installation – easy mounting without de‑energizing the line.
Flexible SCADA integration – IEC 60870‑5‑104 via KOMORSAN software or direct DNP3 connection.
Directional fault detection – identifies fault current direction.
Any neutral grounding type – effective operation in any network.
Versatile network compatibility – suitable for radial and looped networks with single or multiple feeds.

Lodestar CL25 BM-S

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