{"product_id":"abb-3dde300405-cma125-excitation-system-generator-card","title":"ABB 3DDE300405 CMA125 Excitation System Generator Card","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eABB 3DDE300405 CMA125\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a specialized Generator Card within the legacy MasterPiece and Advant OCS ecosystems. This module provides critical interface capabilities for generator excitation control and synchronization monitoring. It bridges the gap between high-power generation hardware and the digital control logic of the DCS, ensuring stable voltage regulation and frequency alignment. We offer this component as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e, facilitating the continued operation of vital power infrastructure without the risks associated with refurbished parts.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\/Manufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eABB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCMA125\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3DDE300405\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eGenerator Interface \/ Excitation Control\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e17.6 x 10.2 x 1.2 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCompatible Systems\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMasterPiece 200\/1, Advant OCS\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCooling Requirements\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNatural Convection\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePrecision Signal Processing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe CMA125 handles low-latency signal acquisition from generator sensors. This immediate processing allows the DCS to adjust excitation levels in real-time, maintaining grid stability during load fluctuations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSeamless Backplane Integration:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDesigned specifically for ABB rack architectures, the card slides into standard slots and initializes automatically upon system boot. This eliminates complex hardware configuration and minimizes downtime during maintenance cycles.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHardened Industrial Circuitry:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eABB engineered the 3DDE300405 with high-grade industrial shielding. This design rejects the electromagnetic interference (EMI) typically found in generator rooms and high-voltage substations, preventing signal corruption.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLegacy Lifecycle Support:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eMany facilities still rely on the MasterPiece series for power management. The CMA125 ensures these systems remain operational, providing a cost-effective alternative to a full-scale control system migration.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLow Thermal Footprint:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDespite its high processing role, the module generates minimal heat. This reduces the strain on cabinet cooling systems and improves the MTBF (Mean Time Between Failures) for the entire rack.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCan the CMA125 be hot-swapped while the generator is online?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile the rack architecture may support physical insertion, we strictly advise against swapping generator control cards while the unit is synchronized to the grid. Always follow ABB MasterPiece safety protocols to prevent accidental trips or loss of excitation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the difference between the CMA125 and CMA124?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CMA125 features specific circuitry optimized for later iterations of the 3DDE series, often including improved signal filtering and updated firmware compatibility for Advant OCS integrations compared to the earlier CMA124 models.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this card require periodic calibration?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe digital logic of the CMA125 remains stable over time; however, engineers should verify the analog input\/output scaling during annual plant turnarounds to ensure the generator feedback loop remains within specified tolerances.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this unit a refurbished or \"new-surplus\" item?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe supply the 3DDE300405 CMA125 as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New and Original\u003c\/strong\u003e. Each card undergoes rigorous quality checks to guarantee it meets factory specifications for power generation environments.\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":42974923817075,"sku":"3DDE300405 CMA125","price":88.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4348\/2227\/files\/449_c786690e-a31e-4af8-a2c6-4c73dc60dc7e.jpg?v=1776045007","url":"https:\/\/www.dcssupplier.com\/products\/abb-3dde300405-cma125-excitation-system-generator-card","provider":"DcsSupplier Limited","version":"1.0","type":"link"}