ABB CMA124 (3DDE300404) SYNPOL D Power Measuring Board

Product Description

The ABB CMA124 (3DDE300404) is a dedicated power measurement board for the ABB SYNPOL D generator protection and control system. It receives sampled AC signals, calculates active power, reactive power, apparent power, power factor and other electrical parameters of the generator, and transmits calculated data to the CMA127 main control board for protection logic judgment and data upload. It cooperates with other SYNPOL D modules to complete comprehensive generator monitoring and protection.

Features

• Power measurement processing board for SYNPOL D generator protection system, part number 3DDE300404
• Calculates generator active power, reactive power, apparent power and power factor
• Receives raw sampling data from analog acquisition board, outputs power measurement results via internal bus
• Built-in signal filtering, amplitude calibration and self-diagnosis for measurement circuit faults
• LED indicators for power supply, running status and measurement fault alarm
• Standard slot installation, compatible with SYNPOL D backplane and series modules
• High anti-interference performance, suitable for power plant generator protection cabinet environment
• Supports power-related protection functions such as reverse power protection and overload protection

Application Scenarios

• Thermal power and hydropower plant generator SYNPOL D protection cabinets
• Real-time power parameter calculation and power factor monitoring of generator sets
• Provide measurement data for reverse power, over power and other power protection logics
• Cooperate with CMA127, CMA123, CMA150 to realize complete generator protection
• Power plant generator protection system maintenance, spare parts replacement and retrofit

FAQ

Q: Which system does CMA124 belong to?
A: It is a power measurement board for ABB SYNPOL D generator protection system.

Q: What is the full part number?
A: CMA124 / 3DDE300404.

Q: What is the difference between CMA124 and CMA150?
A: CMA150 is analog input sampling board; CMA124 is responsible for power calculation based on sampling signals.

Q: Is this board discontinued?
A: SYNPOL D is legacy generator protection equipment; CMA124 is mainly supplied as surplus and fully tested refurbished spare parts.