Lodestar FM-CS
 +971 555-998-004

Lodestar FM-CS

Lodestar FM

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Lodestar FM-CS is a universal device for registration and analysis of fault processes in a network of any topology and neutral type. Lodestar FM-CS can be used as a logger, fault current indicator, high-voltage control device. It could be installed on the control board of relay compartment of a switchgear of any type on panels and control cabinets of relay equipment and on control boards of the substation.

The functionality of model Lodestar FM-CS is similar to model Lodestar FM, but it also has own easily mounted current sensors based on Rogowski coil that gives the following advantages:

• Current transformer does not have unnecessary load;
• It does not cause distortion when using a current transformer for measurements;
• It is used in substations where regular current transformers are not planned, installed or required.

Lodestar FM-CS model has:

• Different absolute and differentiated current thresholds;
• Other measurement accuracy;
• Communication protocol IEC 60870-5-104 is added.

Lodestar FM-CS benefits:

Detects fault direction Effective in resonant grounded neutral grids
Logs all types of emergency situations:
- phase-to-phase faults;
- phase-to-ground faults;
- 2-or-3-phase-to-ground faults
Operates in mixed systems:
overhead, cable and overheadcable ones
High accuracy in measurement of current and voltage Above 0.1 A short circuit fault logging
Immediate data processing in the Device Operates in double-ended and loopfed grids, as well as in radial grids
Feeder Monitor Lodestar FM-CS displays a faulted phase on the front LED-display Event information both visually and in the SCADA system
Easy to configure by a couple of clicks in SW Memorizes more than 200 events


Technical specifications

Types of logged faults - 2-and-3-phase short-circuit fault identification;
- 2-and-3-phase short-circuit fault direction finding;
- 2-and-3-phase-to-ground fault identification;
- 2-and-3-phase-to-ground fault direction finding;
- Phase-to-ground fault identification;
- Phase-to-ground fault direction finding
Determining the directions of PtG Yes
Logging the line switching faults Yes
Selectivity Phase-to-ground and short-cicuit faults direction finding (PtG, PtP)
Current response threshold PtG from 0,5 A
Current response threshold PtP from 10 A
Fault visual indication - LED-display;
- LED indication
Number of memorized faults 240
External measuring sensor - Rogovsky coil (3 pcs.)
- Standard / capacitive divider
Power supply used in the indicator - Inbuilt standby removable lithium storage battery (15 years);
- Powered via operation current source with any type of voltage =100 – 240 V (±10%)
Fault indication reset - By an external command;
- By the timer;
- By the device button
Interface RS-485 MODBUS communication protocol
Ethernet IEC104 communication protocol
Logging of - Voltage;
- Current;
- Power;
- Industrial frequency;
- Power factor in three phases;
- Flow distribution direction;
Measurement accuracy - Voltage:
- when using capacitive dividers- 3%;
- when using volatge transformer - 1%;
- Current3%;
- Active, reactive and full power 3%;
- Industrial frequency 1%


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  Office 2107, Iris Bay Tower - Al Mustaqbal St - Business Bay - Dubai - UAE


  +971 555-998-004

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