The ABB 3BHB006716R0277 5302A-Z.V277 is a microprocessor-based automatic synchronizer designed for generator-grid paralleling operations in power plants and industrial cogeneration systems. This dual-channel device achieves <2ms closing window accuracy through 0.1% class voltage and phase angle measurement, ensuring seamless synchronization of 10-400kV generators. The SYN5302A-Z.V277 features adaptive slip frequency compensation, capable of handling turbine speed fluctuations up to ±5% during black start operations.
As part of ABB’s SYS-600 series protection platform, this unit integrates 6 analog inputs (3VT/3CT) with 24 digital I/O points for comprehensive grid parameter monitoring. The 3BHB006716R0277 variant specifically supports IEC 61850 Ed.2 communication alongside traditional MODBUS RTU, enabling simultaneous data exchange with SCADA systems and legacy relays. Its -25°C to +70°C operating range with 95% humidity tolerance makes it suitable for offshore wind farm collector stations.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 3BHB006716R0277 SYN5302A-Z.V277 |
| Manufacturer | ABB |
| Product Type | Synchronizing Device |
| Input Voltage | 100-240VAC/DC ±20% |
| Frequency Range | 45-65Hz ±0.01Hz |
| Phase Angle Resolution | 0.01° |
| Voltage Matching | ±0.5% of nominal |
| Slip Frequency | 0-0.5Hz adjustable |
| Breaker Close Time | 1-1000ms programmable |
| Communication | IEC 61850, MODBUS RTU, DNP3 |
| Operating Temp | -25°C to +70°C |
| Protection Class | IP54 |
| Certifications | IEC 60255, IEEE C37.90 |
Key Features and Advantages:
Adaptive synchronization: The SYN5302A-Z.V277 employs real-time slip frequency prediction algorithms to compensate for turbine governor response delays during islanded grid synchronization. Its dual-redundant ARM Cortex-A9 processors achieve 1ms sampling intervals for 64-point waveform analysis.
Multi-system compatibility: Simultaneously processes ANSI 25 and IEC 60255-151 protection logic, allowing hybrid operation in cross-border interconnection projects. The device’s dynamic vector group compensation automatically adjusts for Y-Δ transformer configurations in combined cycle power plants.
Cybersecurity hardened: Implements layer-2 packet filtering and role-based access control compatible with NERC CIP requirements. The front panel’s 5-inch capacitive touchscreen remains operational with -20dB SNR in substation environments.
SYNCHROTACT 6
Application Areas:
The ABB 3BHB006716R0277 SYN5302A-Z.V277 is essential for:
- Thermal Power: 1000MW steam turbine run-up synchronization
- Hydroelectric: Pumped storage unit mode transition control
- Marine: LNG carrier genset paralleling operations
- Microgrids: Renewable source seamless transfer switching
In steel mill captive power plants, this synchronizer manages 30+ daily grid connections with <0.5° phase difference. Offshore oil platforms utilize its corrosion-resistant coating (ISO 12944 C5-M) for harsh marine atmosphere operations. The device’s <0.1% THD voltage measurement ensures precise matching of DFIG-based wind turbines to weak grids.
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Installation and Maintenance:
Installation preparation: Before mounting the SYN5302A-Z.V277, verify CT/VT secondary circuit isolation (≥2kV) and ensure proper creepage distance (≥5mm/kV) between synchronization buses. Use ABB-recommended 6mm² shielded cables for analog signal connections in high EMI environments.
Maintenance recommendations: Perform annual contact resistance measurement on synchronization enable circuits. Calibrate voltage matching thresholds every 24 months using PML-630 test sets. Replace front panel membrane keypad every 10 years in coastal installations exposed to salt spray.
Product Assurance:
HONG KONG SAUL ELECTRICAL LIMITED provides 24-month warranty for 3BHB006716R0277 SYN5302A-Z.V277 units deployed in GSU applications. Our power system engineers offer 36-hour emergency support with spare units available from global stockpools. All devices undergo 72-hour burn-in testing at 125% rated voltage and complete 61850 MMS conformance certification. Legacy system upgrade packages include RS485 to fiber optic media conversion.
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