Technical Specifications

Parameter Name	Value
Product Model	ABB 2UBA002322R0018
Manufacturer	ABB
Product Type	Capacitance Plate / DC Link Capacitor Assembly
System Platform	ABB ACS580MV Medium Voltage Drive Series
Rated DC Voltage	Up to 690 V DC
Typical Capacitance	Approx. 1000 μF (dependent on configuration)
Dielectric Type	Metalized Polypropylene Film
ESR Design	Low ESR (Minimized Losses & Heating)
Insulation Test Voltage	1600 V AC @ 1 min (Typical)
Insulation Resistance	≥ 10 MΩ @ 500 V DC
Mounting Type	Cabinet Bolt Fixing + Main Circuit Busbar Connection
Substrate Material	High-Thermal-Conductivity Aluminum Alloy
Operating Temperature	-40°C to +70°C
Enclosure Protection	IP20 (Cabinet Mounted)
Approx. Weight	3.5 – 4.5 kg

 

Main Features and Advantages

Robust DC Bus Filtering and Energy Storage: The ABB 2UBA002322R0018 serves as the primary smoothing and energy storage element for the ACS580MV drive’s DC link. It effectively attenuates the 300Hz or 360Hz ripple voltage that results from the diode rectification of the AC mains, providing a clean and stable DC voltage source for the IGBT inverter stage . This filtering action is crucial for reducing harmonic distortion fed back into the power grid and ensuring the inverter can generate a high-quality output voltage waveform, minimizing stress on the motor’s insulation. The high capacitance value of the ABB 2UBA002322R0018 also provides a local energy reserve that can support the drive during rapid load changes, preventing nuisance DC undervoltage trips.

Thermal Management and Low ESR: One of the standout features of the ABB 2UBA002322R0018 is its advanced thermal design. The aluminum alloy base plate is engineered to act as an efficient heat spreader, channeling heat away from the capacitor cells and into the drive’s cabinet cooling system . Combined with a low Equivalent Series Resistance (ESR), the ABB 2UBA002322R0018 experiences significantly lower internal power dissipation and thermal stress compared to standard capacitor modules. This directly contributes to a longer operational lifespan, a critical factor in the 24/7 operation typical of mining, cement, and heavy process industries.

Precision Engineering for OEM Compatibility: The ABB 2UBA002322R0018 is not an off-the-shelf generic capacitor assembly. It is a meticulously engineered component whose dimensions, busbar hole spacing, mounting points, and electrical characteristics are precisely matched to the ACS580MV chassis . Using the ABB 2UBA002322R0018 as a direct replacement ensures that the copper busbar connections align without mechanical stress, that the insulation creepage and clearance distances meet safety standards, and that the charging pre-charge and discharge circuits operate with the intended impedance, guaranteeing system safety and reliability .

 

Application Field

The ABB 2UBA002322R0018 Capacitance Plate is exclusively deployed in industrial environments that utilize the ABB ACS580MV series medium voltage drives. These drives are the workhorses of heavy industry, and the ABB 2UBA002322R0018 is a critical internal component ensuring their operational integrity. In the cement and mining sectors, the ABB 2UBA002322R0018 is installed within drives that control large fans, crushers, conveyors, and mills . The high-inertia loads characteristic of these applications demand a robust DC link that can withstand the severe current transients and high ripple currents generated during the starting and braking of these massive machines. The ABB 2UBA002322R0018 provides the necessary energy buffer and filtering, enabling smooth and reliable motor control under extreme mechanical stress.

Beyond the heavy industrial heartland, the ABB 2UBA002322R0018 is also found in water and wastewater treatment facilities and power generation plants. In these settings, medium voltage drives control large pumps, fans, and boiler feed pumps. A failure in the DC link, such as capacitor aging, can lead to the drive tripping on a “DC Overvoltage” or “Ripple High” fault, which can cause significant process downtime . The ABB 2UBA002322R0018 is the specific OEM component selected for preventive maintenance replacements and emergency repairs. Its use as an “original, non-refurbished” part is critical, as the superior electrical and thermal performance of the OEM component is guaranteed to match the original design specifications, ensuring that the drive’s performance and the facility’s production output remain at peak levels .