ABB UNITRAL1010 3BHE035301R0001 UNS 0121 A-Z, V1 brushless excitation system

ABB UNITRAL1010 3BHE035301R0001 UNS 0121 A-Z, V1 brushless excitation system

Core Features and Advantages

1. Brushless structural design enhances operational reliability

By adopting brushless excitation technology, the traditional excitation system eliminates the carbon brush and slip ring structure, fundamentally solving problems such as carbon brush wear, spark interference, and regular maintenance. This design not only reduces the failure rate of equipment, but also reduces the workload and cost of daily maintenance, especially suitable for high-speed, long-term continuous operation generator scenarios, effectively improving the operational stability and service life of the entire power generation system.

2. Precise excitation control to ensure power quality

Equipped with ABB's advanced excitation control algorithm and high-performance microprocessor, UNITOLO1010 can achieve precise adjustment of excitation current, with voltage regulation accuracy up to ± 0.5% (rated voltage). When the generator load fluctuates or the grid voltage changes, the system can quickly respond and adjust the excitation parameters to ensure the stability of the generator output voltage, effectively suppress voltage fluctuations and flicker, and provide high-quality electricity to the grid, meeting strict grid access standards.

3. Improve protection functions and build a strong security defense line

Built in comprehensive fault monitoring and protection module, covering multiple protection functions such as overexcitation protection, underexcitation protection, overvoltage protection, overcurrent protection, excitation circuit fault protection, etc. When the system detects abnormal working conditions, it can quickly trigger protection actions by reducing excitation, cutting excitation, or linking the generator protection system to avoid the expansion of faults, protect the generator, excitation system, and related equipment from damage, and ensure the safety of personnel and equipment.

4. Flexible adaptability and scalability

This system is suitable for synchronous generators of different capacities (from small to large) and can achieve good compatibility with ABB and other brands of generators. At the same time, it supports multiple communication protocols (such as Modbus, Profibus, IEC 61850, etc.), making it easy to access power plant distributed control systems (DCS) or monitoring information systems (SIS), achieving remote monitoring and centralized management. In addition, the system reserves expansion interfaces that can add functional modules such as excitation limitation and power factor adjustment according to actual needs.

5. Intelligent operation and convenient maintenance

Equipped with a user-friendly operating interface (HMI) that supports multiple language displays such as Chinese, it can intuitively present system operating parameters (such as excitation voltage, excitation current, generator voltage, etc.), fault information, and operating status, making it easy for on-site personnel to quickly grasp the system situation. The system supports online configuration and modification of parameters, and has a comprehensive self diagnostic function that can automatically identify fault types and locate fault points, greatly reducing the time for fault investigation and maintenance.

6. Environmental performance that adapts to complex working conditions

Designed according to industrial grade high reliability standards, UNITOLO1010 has excellent environmental adaptability and can operate stably in power plant environments with temperatures ranging from -10 ℃ to 50 ℃ (special configurations can support a wider range), humidity levels of 5% to 95% (no condensation), and high dust and strong electromagnetic interference. Its core components have undergone rigorous reliability testing and are able to withstand the impact of complex working conditions such as power grid shocks and voltage fluctuations, ensuring the continuous and reliable operation of the excitation system.

Key technical parameters

Order Number

3BHE035301R0001

Product Model

UNITROL1010

software version

UNS 0121 A-Z,V1

Applicable generator capacity

Usually supports 10MW~1000MW (adjusted according to specific configuration)

Voltage regulation accuracy

≤± 0.5% rated voltage (steady state)

Excitation voltage range

0~120% rated excitation voltage (continuously adjustable)

Range of excitation current

0~120% rated excitation current (continuously adjustable)

response time

Voltage step response time ≤ 0.1s

working power supply

AC 220V/380V (± 10%) or DC 220V (± 15%)

Working temperature range

-10 ℃~50 ℃ (no condensation)

Protection level

IP42 (cabinet), IP20 (module)

communication protocol

Supports Modbus RTU/TCP, Profibus DP, IEC 61850, etc

Applicable scenarios

-Thermal power station: provides stable excitation for steam turbine generators, adapts to coal-fired and gas-fired generators of different capacities, ensures voltage stability during power generation, and meets the needs of power grid dispatch.

-Hydroelectric power station: Adapting to the working conditions of hydro generators, it quickly adjusts the excitation parameters when the unit load changes with water level and flow rate, ensuring stable operation of the generator and improving power generation efficiency.

-Industrial self owned power station: used as a self owned generator for large industrial enterprises such as steel, chemical, and cement, providing reliable self owned power for enterprise production and avoiding the impact of power outages on production.

-New energy supporting power generation: As an excitation system for energy storage stations or backup generators supporting new energy sources such as wind power and photovoltaics, it enhances the grid stability and reliability of the new energy power generation system.

-Emergency power generation system: used as an emergency generator in hospitals, data centers, important transportation hubs, and other places to ensure that the generator can quickly start and output stable voltage in emergency situations, ensuring power supply for critical loads.

Precautions for use

1. Before installing the system, it is necessary to verify that the equipment model, order number, and software version are consistent with the design requirements. Check whether the appearance and internal modules of the equipment are intact to avoid damage during transportation.

2. The installation environment should meet the requirements of temperature, humidity, dust prevention, etc. The cabinet should be installed firmly to avoid vibration; Cable wiring should be standardized, and power cables and control cables should be laid separately to reduce electromagnetic interference.

Before the first operation, it is necessary to complete the parameter configuration according to the official manual, including the rated parameters of the generator, excitation limit values, protection settings, etc., to ensure that the parameters match the working conditions of the generator and the power grid.

4. During operation, it is necessary to regularly monitor the system's operating parameters through the operation interface, check whether the cooling system and power system are normal, and promptly handle any abnormalities to avoid the expansion of faults.

During maintenance, it is necessary to strictly follow the safety operating procedures, first cut off the system power and control power, and ensure that the high-voltage part is reliably grounded; It is prohibited to modify key parameters arbitrarily, and a backup must be made before modification.

6. Software upgrades must be operated by authorized ABB engineers, using official and genuine upgrade programs to avoid system failures caused by illegal software; After the upgrade, functional testing is required to ensure the normal operation of the system.