ALSTOM MCGG62N1CB0753F High-Performance Control Module

Continuing the overcurrent protection logic of previous models (such as MCGG52H1), it may support a wider current monitoring range (e.g., 0.1A - 100A adjustable) with higher action threshold accuracy (error ≤ ±5%), adapting to complex load scenarios.

It may have an inverse time characteristic: the more the current exceeds the threshold, the shorter the action time, meeting the hierarchical protection requirements of industrial equipment.

Supports standard DIN rail installation, with a compact size (e.g., approximately 100mm×80mm×60mm), facilitating integration into control cabinets or distributed systems.

Compatible with multiple communication protocols (such as Modbus RTU, CANopen), enabling real-time interaction with PLC and DCS systems for remote monitoring and parameter configuration.

Expanded operating temperature range (e.g., -25°C ~ +70°C), meeting high and low-temperature industrial environments (such as metallurgy, mining).

The protection level may reach IP54, with dustproof and splash-proof capabilities, resistance to vibration (e.g., 10-500Hz, 2G acceleration), and electromagnetic interference (complying with IEC 61000 standards).

Real-time sampling of the main circuit current through a built-in current transformer (CT), converting it to a digital signal via ADC, and comparing it with the preset threshold by the microprocessor.

When the current exceeds the set value, it triggers the action of electromagnetic or solid-state relay contacts, cutting off the load circuit or outputting alarm signals (such as dry contact output, LED indicator flashing).

Supports bidirectional communication: the upper computer can remotely read real-time current values, fault records (such as timestamps of the latest 100 overcurrent events), and modify protection parameters (such as thresholds, action delays).

Has a self-diagnosis function: regularly detects internal faults such as CT anomalies and power undervoltage to ensure the reliability of protection functions.

Environmental requirements: Avoid installing in strong magnetic fields (such as near transformers) and high humidity (RH ≤95%, no condensation), with a distance of ≥100mm from heating elements.

Wiring specifications: The primary side of the current transformer is connected in series to the main circuit, the secondary side wiring uses shielded twisted pair (cross-sectional area ≥1.5mm2), and the grounding end is separately connected to the protective ground (ground resistance ≤4Ω).

Parameter initialization: Set basic parameters such as rated current, action threshold, and communication address through supporting software (such as ALSTOM ProView).

Simulation test: Use an adjustable current source to input 1.2 times the rated current to verify whether the contact action time and alarm signal output meet the set values; input 0.8 times the rated current to confirm that the relay does not misoperate.

Fault record verification: After simulating an overcurrent fault, check whether the device stores the fault type, time, and current peak, and whether they can be read by the upper computer.

Power system: Overcurrent protection for distribution lines, motors, and transformers to prevent short circuits or overload damage.

Rail transit: Current monitoring and protection for traction converters and auxiliary power systems to ensure safe train power supply.

Industrial automation: Overload protection for fans, pumps, and other equipment, cooperating with PLC to achieve equipment linkage shutdown.