ABB NBRA-669C Product Introduction

ABB NBRA-669C is a high-performance variable frequency brake chopper,designed for variable frequency speed regulation systems that require fast and precise braking.The following is a detailed introduction.

Product Overview

Brand and model:ABB NBRA-669C,belongs to the ABB brake drive series.

Product type:variable frequency brake chopper,used for braking control in variable frequency speed regulation systems.

Product features

High-efficiency braking performance

Quick response:Using advanced power electronics technology and intelligent control algorithms,it can monitor the operating status of the motor in real time,dynamically adjust the connection and removal of the brake resistor according to actual needs,and achieve fast and precise braking control.

Wide range adaptation:Supports a wide range of input voltage and frequency,and can match a variety of inverters and motors to meet the needs of different applications.

Reliability and safety

Multiple protections:It has multiple protection functions such as overheating,overcurrent,and short circuit to ensure the safe operation of the equipment under harsh working conditions.

Fault self-diagnosis:Built-in fault self-diagnosis function,which can promptly issue an alarm signal when a fault occurs,and take corresponding protection measures to ensure the stable operation of the system.

Compact design and efficient heat dissipation

Compact structure:It adopts a compact structure design,is easy to install,occupies a small space,and is easy to integrate into various automation systems.

Efficient heat dissipation:The built-in efficient heat dissipation system adopts a heat sink and a high-power fan design,which can quickly dissipate the heat generated during braking and keep the operating temperature of the brake chopper within the normal range.

Flexible configuration and wide application

Adjustable parameters:Users can adjust the parameter settings of the brake chopper,such as the resistance value of the brake resistor,the braking time,etc.,to meet the braking needs of different applications.

Wide application:It can be widely used in elevators,cranes,wind power generation and other occasions,providing stable and efficient braking control solutions for industrial automation systems.

Technical parameters

Rated voltage:Suitable for 690V inverters.

Drive power handling capacity:375 kilowatts per minute for 10 seconds or 30 seconds.

Resistor dissipation power:Continuous power(heat)dissipation is 13.5 kilowatts.

Dimensions and weight:334 mm wide x 240 mm deep x 583.5 mm high,weight 24 kg.

Mounting:4 7 mm holes,200 mm x 562 mm,for rear mounting.

Enclosure rating:IP00.

Applications

ABB NBRA-669C variable frequency brake chopper has been widely used in industrial automation and power transmission due to its excellent performance and innovative solutions,including but not limited to

Elevator system:Ensure smooth braking of elevators during operation and improve passenger comfort.

Hoisting machinery:Provide reliable braking control when cranes are lifting heavy objects to ensure safe operation.

Wind power generation:In wind turbines,it is used to control the speed and braking of the generator to improve power generation efficiency.