Designed specifically for industrial and renewable energy scenarios, it supports a power range of 4-120 MVA, boasts an efficiency of >98%, uses IGCT (Integrated Gate Commutated Thyristor) technology for bidirectional power flow, features a dual-mode cooling system (air cooling/water cooling), and is controlled by the ABB AC800PEC PLC. It offers overload, short-circuit, overvoltage, and grid fault ride-through protection, primarily responsible for high-voltage grid circuit breaker control, grid-side synchronization, fault protection, and communication coordination. It is widely used in renewable energy grid connection, motor drive, and grid dynamic compensation.

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　　3BHE056532E16 Other Names:

　　Grid Breaker Unit 3BHE056532E16

　　3BHE056532E16 High-Voltage Grid Breaker Control Unit

　　Grid-Side Synchronization and System Protection Unit 3BHE056532E16

　　The PCS 6000 System Distribution Panel 3BHE056532E16 is a medium-voltage power conversion system launched by ABB. It primarily provides high-voltage grid breaker control, grid-side synchronization, fault protection, and communication coordination. It is widely used in renewable energy grid connection, motor drives, and grid dynamic compensation. Its core modules include the power unit, control cabinet (such as the GBU72), and power distribution cabinet (PDC). The PDC serves as the system's power distribution hub, designed specifically for industrial and renewable energy scenarios. It supports a power range of 4-120 MVA, boasts >98% efficiency, utilizes IGCT (Integrated Gate Commutated Thyristor) technology for bidirectional power flow, features a dual-mode cooling system (air/water cooling), and utilizes an ABB AC800PEC PLC controller with overload, short-circuit, overvoltage, and grid fault ride-through protection.

　　Core Functions and Technical Parameters

　　Core Functions:

　　Circuit Breaker Control: Enables closing and opening of the high-voltage grid, supporting remote or local control with a response time of <1μs.

　　Grid-Side Synchronization: Ensures frequency and phase synchronization between the inverter and the grid to avoid grid-connection shock.

　　Protection Mechanism: Integrated overcurrent, overvoltage, undervoltage, and short-circuit protection enable rapid and safe shutdown.

　　Communication and Coordination: Communicates with a host controller (such as the AC 800PEC) via protocols such as MODBUS and Profibus, supporting status feedback and parameter configuration.

　　Arc Extinguishment: Utilizes advanced arc extinguishing technology to limit short-circuit current peaks and extend device life.

　　Electrical Parameters: Rated voltage 72.5kV, rated current up to 3150A, insulation level 170kV, breaking capacity 25kA, control voltage 220V AC, weight approximately 600kg.

　　Compatibility: Supports communication with control units such as the ABB AC 800PEC PLC and PMI modules, making it suitable for applications such as wind turbine converters, industrial drives, and rail transit.

　　Key Technical Parameters:

　　Electrical Parameters: Rated voltage 72.5kV, rated current up to 3150A, insulation level 170kV, breaking capacity 25kA, control voltage 220V AC/24V DC.

　　Structural Features: Epoxy resin encapsulation, moisture-proof, dust-proof, and resistant to mechanical shock; heat dissipation design supports both air and water cooling modes, adapting to harsh environments.

　　Environmental Adaptability: Operating temperature range: -40°C to +125°C, IP54 protection level, and vibration tolerance in accordance with IEC 60068-2-6.

　　Application Scenarios and Advantages

　　Typical Applications:

　　Rail Transit: Subway traction converters, achieving smooth acceleration and braking, reducing energy consumption and failure rates.

　　Industrial Drives: High-power motor control in metallurgy, mining, cement, and other industries, ensuring safe high-voltage startup and shutdown.

　　Renewable Energy: Wind power converter systems, ensuring stable operation of IGCTs under grid fluctuations.

　　Grid Protection: Serves as a grid-side protection device, providing power outage protection, fault isolation, and system interlocking.

　　Core Advantages:

　　High Reliability: Epoxy resin encapsulation, moisture-proof, dust-proof, and resistant to mechanical shock, with a service life of up to 20 years.

　　Fast Response: Fault detection and shutdown times are less than 1μs, reducing the risk of equipment damage.

　　Flexible Communication: Supports multiple industrial protocols for easy integration into existing control systems.

　　Modular Design: Facilitates maintenance and expansion, reducing overall lifecycle costs.

　　Troubleshooting

　　Common Fault Code 0001 (Overcurrent): Check for excessive motor load, excessive acceleration time, motor/cable damage, incorrect phase sequence, and excessive ambient temperature (derating is required if the ambient temperature exceeds 40°C).

　　Other faults, such as overvoltage (Code 0002) and IGBT overheating (Code 0003), require checking the brake resistor, cooling system, and parameter settings.

　　Installation and Maintenance Key Points

　　Installation Specifications:

　　Must be performed by a qualified engineer and comply with safety standards (such as insulation testing and grounding requirements).

　　The cooling system must ensure unobstructed air/water cooling channels to prevent dust accumulation that could affect heat dissipation.

　　Cables must be routed away from other lines to prevent electromagnetic interference. Terminal connections must meet torque specifications (e.g., 76 Nm for an M12 bolt).

　　Maintenance Cycle:

　　Regularly check insulation resistance, cooling system status, and circuit breaker status, and perform a comprehensive maintenance every five years.

　　Troubleshooting requires specialized instruments, such as a multimeter to detect voltage/current anomalies and infrared thermal imaging to detect hot spots.

　　Safety Precautions:

　　Before any operation, disconnect the power supply and allow capacitors to discharge to avoid the risk of electric shock.

　　Wear anti-static equipment during maintenance to prevent static electricity from damaging sensitive components.

　　General Technical Parameters

　　The PCS 6000 system power distribution cabinet 3BHE056532E16 supports input voltages from 3.3 kV to 35 kV (customizable) and a power range from 5 MW to 200 MW+. It utilizes modular multilevel converter (MMC) technology and boasts an efficiency of ≥97%. As a submodule, the power distribution cabinet may have the following features:

　　Voltage/current adaptability: Designed according to the system voltage level, it supports medium-voltage power distribution requirements.

　　Protection functions: Integrated overload, short-circuit, and grid fault ride-through functions ensure system stability.

　　Modular expansion: Supports hot-swappable replacement of faulty modules, reducing downtime.

　　Cooling methods: Air or water cooling to adapt to different environmental conditions.

　　Comparison with Similar Models

　　3BHE055094R0001 Control Cabinet: As another core control cabinet unit in the PCS 6000 system, the 3BHE055094R0001 primarily handles circuit breaker control, grid-side synchronization, communication coordination, and status management. The 3BHS866401E27 power distribution cabinet may complement or expand upon the 3BHE055094R0001 in terms of functionality, forming a complete PCS 6000 system solution.

　　Configuration and Standards

　　Power Distribution Cabinet Structure: Adheres to the principles of "three-level power distribution, two-level leakage protection, one switch per machine, one cabinet per leakage protection." The cabinet's steel plate thickness is ≥1.5mm, and it features separate terminal blocks for the N/PE lines. It is equipped with a voltmeter, ammeter, energy meter, and leakage protection device (operating current ≤30mA, time <0.1s).

　　Safety Specifications: Complies with standards such as GB/T 15576-2008 and JGJ46-2005, is CCC certified, and supports remote monitoring and fault diagnosis.

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