ABB CMA131 3DDE300411 SYNPOL‑D Generator Protection Control Module

Technical Specifications

Model: CMA131

Part Number: 3DDE300411

Brand: ABB

Product Type: SYNPOL‑D generator protection & logic control module

Matching System: ABB SYNPOL‑D generator excitation and protection system

Power Supply: 380‑480VAC auxiliary power supply

Signal Processing: Protection logic judgment, excitation control signal output

Communication Interface: System internal parallel bus

Installation Method: Rack plug‑in card installation

Operating Temperature: ‑20℃ ~ +70℃, non‑condensing

Protection Class: IP20

Weight: 0.62kg

Dimension: 245mm ×145mm ×45mm

Compatible System: Power plant generator‑transformer set protection cabinet

Core Function: Core logic processing unit of SYNPOL‑D system, completes generator protection logic calculation, excitation control command processing, receives measurement signals from acquisition boards, outputs trip and control signals, guarantees safe and stable operation of generator unit.

Product Details

The CMA131 3DDE300411 is core logic processing module for ABB SYNPOL‑D generator excitation and protection system.

This board undertakes main logic operation task of SYNPOL‑D protection system. It receives measuring data from analog input boards, executes generator protection algorithm, completes fault discrimination, and outputs tripping, alarm and excitation adjustment control signals.

It monitors key operating parameters of generator set in real‑time, provides reliable protection against over‑current, over‑voltage and other typical generator faults.

On‑board hardware self‑diagnosis function can detect module power failure, circuit abnormality and internal fault, and trigger corresponding alarm output.

Conformal coated circuit board adapts to harsh power‑industry working environment, improves anti‑interference capability.

Standard rack plug‑in structure supports convenient maintenance and module replacement.

Widely used in overhaul and renovation projects of thermal and hydroelectric generator‑transformer set SYNPOL‑D protection system.

It is important spare hardware for generator protection cabinet maintenance, logic loop debugging and defective CMA131 module replacement.