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Lodestar FM-FL

Technical characteristics of Lodestar FM-FLx system

PARAMETER	Lodestar FM-FL HV	Lodestar FM-FL	Lodestar FM-FL +
Mains voltage level, kV	230	6-36
Mains frequency, Hz	from 45 Hz to 65
Recorded fault types
Identification of single-phase faults	+
Identification of two-phase and three-phase faults	+
Determination of two-phase and three-phase faults direction	+
Direction determination for phase-to-phase and three-phase faults involving ground	+
Identification of single-phase PtG	+
Determination of single-phase PtG direction	+
Selectivity	determination of short-circuit faults direction	determination of single-phase PtG, short-circuit faults direction
Fault location determination	with an accuracy of ±300 m KOMORSAN software implementing a fault location mechanism
Power supply
Supply from any of the following control voltages:	220 V DC, 110 V DC, or 220 V AC mains supply 12 V DC backup power supply
Fault indication reset	external command by timer by the front panel button
General description of devices
Visual fault indication	LED indication LCD indicator
Minimum zero-sequence current for single-phase PtG registration, А	-	0.5	-
Fault detection during line switch-on	+
Number of latest faults stored in the internal memory	240
Communication	RS-485 Modbus protocol Ethernet IEC 608 70-5-104 protocol
Operation monitoring	visual relay output RS-485 Ethernet
Changing settings	via USB using client software via the device menu remotely via GSM using software KOMORSAN Web Client
Integration with SCADA systems	via the KOMORSAN software when the Lodestar FM-FL + is connected to the Lodestar KL Smartbox directly to the SCADA system using the IEC 60870-5-104 protocol
Recording	voltage current power power frequency three-phase power factor power flow direction minimum and maximum power flow values
Measurement accuracy	voltage 1% current 1% active, reactive and apparent power 1 % frequency 1%	voltage: with 3% accuracy capacitive dividers when using voltage transformers with an accuracy of 1% current 1% active, reactive and apparent power 5% frequency 1%
Mounting	switchboard panel	into a switchgear cell, on a control panel
Connection	current sensor (current transformers) voltage transformer	current sensor (current transformers) standard voltage transformer capacitive divider	current sensor Rogowski coil standard voltage transformer capacitive divider
Operating temperature range, °С	from –40 to +70
IP rating of the feeder monitor	IP 20

Now it is possible to detect simply the fault localization on overhead and cable power lines with the new universal device Lodestar FM-FL. Such ultra-compact device, mounted easily in the switchgear, monitors the network status constantly and determines the damage location with accuracy of 300 meters. Working in networks with any type of neutral, Lodestar FM-FL Fault Location System records any type of emergency situations on cable and overhead distribution line.

For switchgear that are not equipped with their own current sensors, it is recommended to install Lodestar FM-FL with current sensors based on the Rogowski coil, which is installed in substations where standard current transformers are not planned, mounted or required.

The intelligent feeder monitor analyzes a wide range of parameters and displays on-line the characteristics of current, power, voltage, etc., as well as minimum and maximum values of flow.

Lodestar FM-FL is available to order in three modifications depending on the voltage class and current sensors:

Lodestar FM-FL+ voltage class 6-36 kV with Rogowski coils;
Lodestar FM-FL voltage class 6-36 kV with current transformer sensors SCTххх;
Lodestar FM-FL HV voltage class up to 230 kV with current transformer sensors SCTххх.

Benefits:

Multiple configurations – wide range of versions for different network requirements.
Continuous network monitoring – real‑time network status awareness.
Geographic fault visualization – exact fault location displayed on a map.
High‑accuracy fault location – determines fault location with ±300 m accuracy for long-distance lines.
Comprehensive fault recording – records all types of faults.
Flexible SCADA integration – supports IEC 60870‑5‑104 over Ethernet; Modbus over RS‑485.

Lodestar FM-FL

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