UNITROL1020 3BHE030579R0003 ABB Voltage regulator

In terms of technology and performance:
Advanced control technology: Based on advanced microprocessor technology, it can accurately and quickly control and regulate the excitation of generators or industrial equipment, ensuring the stability and reliability of output voltage.
High current output capability: Using IGBT semiconductor devices, it allows for continuous operation of current output up to 20ADC, with high power output capability, which can meet the excitation needs of small and medium-sized equipment.
Fast response: It has a fast AVR (Automatic Voltage Regulator) response time, with a response time of less than 20ms (in some cases less than 50ms) for three-phase measurements and less than 50ms for single-phase measurements. It can quickly respond to load changes and maintain voltage stability.
High precision regulation: The voltage regulation accuracy can reach 0.2% at 25 ° C, providing precise voltage control.
In terms of functional features:
Multiple operating modes: equipped with automatic voltage control, power factor and reactive power control, excitation current regulation and other operating modes to meet the needs of different application scenarios. For example, in automatic voltage control mode with adjustable PID controller; Equipped with PID control algorithm for power factor and reactive power control.
Good communication function: equipped with Ethernet, USB, RS-485 and other communication interfaces, supporting multiple communication protocols, convenient for communication and data exchange with other devices or systems, achieving remote monitoring and management.
Powerful monitoring and protection functions: It has a rotating diode monitoring function, which can monitor the working status of the rotating diode in real time and detect faults in a timely manner; Equipped with multiple limiter functions, such as excitation current limiter, to protect the safe operation of equipment; It also has functions such as voltage transformer monitoring and synchronous inspection, which enhances the stability and reliability of the system.
Redundancy support: Built in dual channel support can achieve redundant backup, improving system reliability and stability. When one channel fails, the other channel can quickly take over the excitation control to ensure the continuous operation of the equipment.
In terms of environmental adaptability:
Wide temperature range: It can operate normally within a temperature range of -40 ° C to+70 ° C and maintain good performance and reliability even in harsh environmental conditions, suitable for various industrial environments.
High electromagnetic compatibility and immunity: By designing the power supply and measurement terminals separately from the I/O connectors, a high level of electromagnetic compatibility and immunity has been achieved, reducing the impact of external electromagnetic interference on the equipment.
In summary, ABB’s UNITOL 1020 3BHE030579R0003 voltage regulator has the characteristics of excellent performance, rich functionality, high reliability, and strong environmental adaptability. It is widely used in the power generation, transmission, and distribution sectors of the power system, as well as in industrial, commercial, and residential electricity applications.

Recently, ABB Group, headquartered in Switzerland, has attracted industry attention for a technology called “Flash Charging”. According to the information obtained from ABB (China) Enterprise Communication Department, “This technology was designed to be promoted globally

The system has been operating on the route between Geneva Airport and Palexpo Exhibition Center since May 26th and will continue until March 14th, 2014. The head of the company stated that this technology is suitable for ordinary cities, large cities, and mega cities seeking sustainable public transportation solutions. Used for high-frequency bus routes to alleviate traffic congestion in urban areas

According to ABB, this technology is equipped with a water-cooled lithium titanate oxide LTO battery pack with a service life of 10 years. There is a rooftop charging system at the station that can charge for 15 seconds at a power of 400 kilowatts. These charging systems are connected to the power grid and equipped with intermediate storage devices (supercapacitors) to reduce the impact of short-term high power on the grid. The fast charging point can charge buses up to 1.65 kWh. In addition, at the bus terminal, there is a 200 kW charger that can fully charge the battery in 3-4 minutes.

At present, pure electric buses using this technology can carry 135 people. When the vehicle stops at the station, it is located by infrared, and the charging point on the roof is connected to the moving arm controlled by laser after positioning. After completing a 15 second recharge, the vehicle continues to move forward without affecting the normal operation of the bus. Its concept is similar to that of a tram, but it does not require the installation of a complex network.

In addition to ABB, similar concepts of fast charging during driving are also being promoted by many companies in China. During an interview with reporters, Wang Binggang, the leader of the supervision and consulting expert group for the National 863 Program’s major projects on energy conservation and new energy vehicles, referred to this mode as “online charging” The online charging mode can effectively solve the contradiction between battery quantity and range Wang Binggang stated. It is reported that currently, bus companies such as Hunan CSR Times Electric Vehicle, Youth Bus, and Hengtong Electric Vehicle are developing and promoting similar technologies.

As a Fortune 500 company, ABB’s business scope includes power and automation technology. In the field of electric vehicles in China, ABB is a supplier of DC drives, motors, programmable controller products, electric vehicle charging infrastructure, and energy storage products. In the field of charging infrastructure, ABB has not had a good opportunity, perhaps the latest “flash charging technology” can find some market space for ABB.

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