ABB CMA132 3DDE300412 SYNPOL‑D Generator Relay Terminal Board

Technical Specifications

Model: CMA132

Part Number: 3DDE300412

Brand: ABB

Product Type: Generator relay terminal interface board

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

Power Supply: Rack backplane auxiliary DC power supply

Terminal Channel: Multi‑channel wiring terminal, relay signal output interface

Isolation Mode: Galvanic isolation between power circuit and logic circuit

Communication Interface: System internal parallel backplane bus

Installation Method: Rack plug‑in card installation

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

Protection Class: IP20

Weight: 0.62kg

Dimension: 210mm ×135mm ×45mm

Compatible System: Thermal power, hydroelectric power plant generator‑transformer set protection cabinet

Core Function: Serve as signal relay interface unit of SYNPOL‑D protection system, realize external wiring connection for protection trip, alarm and excitation control signals, provide galvanic isolation between field secondary circuit and internal logic circuit, transmit relay control signals reliably for generator protection system.

Product Details

The CMA132 3DDE300412 is generator relay terminal interface board for ABB SYNPOL‑D generator excitation and protection system.

This module cooperates with CMA131 logic processing board, it is the key signal connection component between protection logic unit and field secondary wiring. It receives internal trip, alarm and excitation adjustment control signals, and outputs signals through multi‑channel terminal blocks to external relay equipment and on‑site loop circuit.

Adopts galvanic isolation design, effectively suppresses surge interference from power plant secondary circuit, avoids external disturbance affecting internal logic operation of protection system, improves system operation stability.

It supports convenient field wiring, inspection and signal debugging. On‑board circuit monitors signal channel status, helps staff quickly locate wiring and signal faults.

Conformal coated circuit board adapts to harsh power‑industry working environment, has good dust‑proof and moisture‑proof performance.

Standard rack plug‑in structure, convenient for on‑site maintenance and module replacement.

Widely used in overhaul and renovation projects of legacy SYNPOL‑D generator protection system in thermal power and hydropower plants.

It is important spare hardware for generator protection cabinet maintenance, secondary loop debugging and defective CMA132 module replacement.