REF620C is a voltage regulator designed by ABB for small and medium-sized synchronous generators and industrial equipment. The following is a detailed introduction about REF620C:

Design features:

REF620C combines performance control and a simple designed power circuit, making it a powerful small indirect excitation system.

It has built-in support for dual channels and is used for advanced load distribution, rotating diode monitoring, automatic synchronization, and multiple integrated communication options in parallel operating units.

IGBT semiconductor devices based on advanced microprocessor technology and allowing for continuous operation with current output up to 10ADC.

Performance parameters:

Input voltage range: 380-480V

Output voltage range: 0-416V

Output frequency range: 0-65Hz (but as mentioned in Article 3, a specific model of REF620C has an output frequency of 50Hz)

Rated current: 24A (but as mentioned in Article 3, a specific model of REF620C has a rated current of 5A)

Rated power: 22kW

Control accuracy: ± 0.5%

Functional features:

It can perform high-performance work under harsh conditions and different temperature ranges, and fully complies with DNV and UL standards.

Compared to previous versions, UNITROL 1020 also offers Ethernet, USB connectivity, data and event recording, and many new features.

Suitable for various occasions that require precise control of motor speed and torque, such as conveyor belts, pumps, fans, etc.

It can be used in conjunction with various sensors and controllers to achieve automated control and monitoring, improve production efficiency and equipment reliability.

Technical details:

REF620C provides digitizer input and HDMI interface (please note that the HDMI interface may vary in certain specific models, such as the HDMI interface mentioned in reference article 3).

It supports multiple communication options, such as Ethernet and USB connections, making data exchange and monitoring more convenient.

Application scenarios:

666666666666 is suitable for small and medium-sized synchronous generators and industrial equipment, which can ensure the stable operation of the power system and improve production efficiency and equipment reliability.

In summary, REF620C is a powerful and stable voltage regulator that is suitable for various industrial applications and provides a variety of functions and options to meet different needs.