SIEMENS SICAM FCM FEEDER CONDITION MONITOR SHORT-CIRCUIT INDICATOR FOR CABLE
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Product Description
SIEMENS SICAM FCM FEEDER CONDITION MONITOR SHORT-CIRCUIT INDICATOR FOR CABLE
Feeder Condition Monitor Digital short circuit indicator with measuring function for medium voltage switchgears. The key to continuous improvement in the power supply is accurate knowledge about the relevant circumstances of the local energy supply system. Functionality: The SICAM FCM (Feeder Condition Monitor) is a phase fault and ground-fault indicator with directional indication that operates with protection algorithms and low-power current transformer technology as per IEC 60044-8/ IEC 61869-10 or the conventional 1 A/5 A instrument transformers. As an alternative, the SICAM FCM can also be connected using a capacitive voltage tap, thus effecting economical directional fault detection in the cable network. The SICAM FCM additionally offers the possibility of providing up-to-date measured values via the integrated Modbus RTU interface, thus ensuring a precise assessment of the distribution system. Cost-effective measuring device for use in Low voltage switchgears. The SICAM FCM (Feeder Condition Monitor) also performs well as a low-cost power meter in a low-voltage power system. It is optimized for flush mounting in low-voltage switch bays because of the low height.
Functions for medium voltage
- For grounded, isolated and resonant- grounded systems
- Flexible ground-fault detection starting from 0.4 A
- Integrated power-flow direction indicators
- Directional short-circuit and ground-fault detection
- Direct voltage measurement in low-voltage power systems
- Link to capacitive voltage-detecting systems
Communication
Signalization
- Display for presenting up-to-date measured values or fault information in the power distribution system, 4 function keys
- 3 LEDs for the operating state
- 2 binary outputs
Measured Quantities
- RMS measured values; accuracy class 0.5
- Phase-to-ground voltages and currents, ground current, power frequency and cos φ, phase angle, active power, reactive power, and apparent power
- Energy meter
- Trailing pointer
Inputs
- 3 inputs for alternating voltage selectively adjustable for 100 V/√3, low-power sensors with 3.25 V/√3 (as per IEC 60044-7) or 3 direct inputs for AC 230 V
- Alternatively: 3 inputs for linking to LRM voltage-detecting systems (as per IEC 61243-5)
- 3 inputs for low-power current transformers with 225 mV at rated current (as per IEC 60044-8/61869-10), the rated primary current is adjustable in the SICAM FCM device from 50 A to 2500 A; L2 current input can be configured for sensitive ground-fault detection using low-power current transformers with 225 mV at rated current (as per IEC 60044-8/61869-10), the rated primary current is adjustable in the SICAM FCM device
- Alternatively: inputs for conventional instrument transformers 1 A/5 A via adaptors
- 1 binary input
Temperature Range
- From -40 °C to +70 °C
Auxiliary Voltage
- DC 24 to 250 V, AC 230 V
- Battery with lifetime > 15 years
Housing
- Polycarbonate housing for panel flush mounting
- Dimensions: 96 x 48 x 109,5 mm (W/H/D)
- Protection class: front panel IP40, rear panel IP20
Low-Power Current Transformers for Medium Voltage
- Phase-current sensor, 225 mV@300 A, 225 mV@700 A, accuracy class 0.5, split core, narrow type of construction
- Core balance current sensor, 225 mV@60 A, accuracy class 1, split core, narrow type of construction
- Voltage sensor, 10 kV, 10 kV/√3 : 3.25/√3, for symmetrical and asymmetrical T plugs, accuracy class 1
- Voltage sensor, 20 kV, 20 kV/√3 : 3.25/√3, for symmetrical and asymmetrical T plugs, accuracy class 1
Functions for low voltage
Functions as a Power Meter
- Calculation of active power, reactive power, and apparent power (P, Q, S), per phase and 3-phase
- Calculation of power factors, per phase and 3-phase
- Calculation of active and reactive energy for import/export, 3-phase
- Inversion of the P, Q values
- Rotating field detection
- Power-flow direction indication
- Directional short-circuit and ground-fault detection
- Link to low-power sensors or conventional 1 A/5 A instrument transformers
- Adjustable over current, over voltage and under voltage alarms
- Trailing-pointer functionality for currents/power
Communication
- RS485 interface including Modbus RTU communication for all information and for remote parameterization/firmware updates, PC programming as an alternative
Signalization
- Display for presenting up-to-date measured values or fault information in the power distribution system, 4 function keys
- 3 LEDs for the operating state
- 2 binary outputs
Measured Quantities
- RMS measured values; accuracy class 0.5
- Phase-to-ground voltages and currents, ground current, power frequency and cos φ, phase angle, active power, reactive power, and apparent power, per phase and 3-phase, power factor, per phase and 3-phase, rotating-field detection
- Energy meter
- Trailing pointer
Inputs
- 3 inputs for alternating voltage selectively adjustable for 100 V/√3, low-power sensors with 3.25 V/√3 (as per IEC 60044-7) or 3 direct inputs for AC 230 V
- Alternatively: 3 inputs for linking to LRM voltage-detecting systems (as per IEC 61243-5)
- 3 inputs for low-power current transformers with 225 mV at rated current (as per IEC 60044-8/61869-10), the rated primary current is adjustable in the SICAM FCM device from 50 A to 2500 A; L2 current input can be configured for sensitive ground-fault detection using low-power current transformers with 225 mV at rated current (as per IEC 60044-8/61869-10), the rated primary current is adjustable in the SICAM FCM device
- Alternatively: inputs for conventional instrument transformers 1 A/5 A via adaptors
- 1 binary input
Temperature Range
- From -40 °C to +70 °C
Auxiliary Voltage
- DC 24 to 250 V, AC 230 V
- Battery with lifetime > 15 years
Housing
- Polycarbonate housing for panel flush mounting
- Dimensions: 96 x 48 x 109,5 mm (W/H/D)
- Protection class: front panel IP40, rear panel IP20
Low-Power Current Transformers for Low Voltage
- 2 variants for rated currents of 100 A to 400 A, 300 A to 1000 A
- As per the IEC 61869-10 standard
- Accuracy class 1/0.5 with correction factors
- Small housing form, installation without tools and without modifying the primary equipment
- Sensor cable for direct connection (7 m in length)
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