Description
The ABB NBRA-659C is a Universal Brake Chopper designed to dissipate the energy generated by an electric motor during braking or deceleration. It’s commonly used in industrial applications where motors need to be controlled precisely and efficiently.
Key Features:
- Power Dissipation: The NBRA-659C can handle a wide range of power dissipation capacities, from 30 kW to 352 kW. This makes it suitable for various motor sizes and applications.
- Regenerative Braking: It can convert some of the braking energy back into the electrical supply, improving energy efficiency and reducing power consumption.
- Dynamic Braking: It can also provide dynamic braking, which uses the motor’s own magnetic field to slow it down, without feeding energy back to the supply.
- Overvoltage Protection: The NBRA-659C features overvoltage protection to safeguard the motor and the drive from potential damage caused by excessive voltage spikes.
- Compact Design: It’s designed for a compact and space-saving installation within control cabinets.
Applications:
The NBRA-659C is widely used in various industrial automation applications involving controlled motor braking, such as:
- Elevators and escalators: Ensuring smooth and controlled stopping of elevators and escalators.
- Conveyor systems: Controlling the speed and stopping of conveyor belts, especially in applications with frequent starts and stops.
- Crane and hoisting systems: Enabling precise braking and positioning of cranes and hoists.
- Machine tools: Providing controlled deceleration of machine tool spindles and axes.
