ABB SYN5302A-Z, V217 3BHB006716R0217 Automatic Synchronizer

SYN5302A-Z with firmware version V217 and part number 3BHB006716R0217 is a high-precision dual redundant automatic synchronizer belonging to ABB Synchrotact 5 platform, specially matched with UNITROL series generator excitation systems. It continuously monitors voltage, frequency and phase angle of generator terminals and grid busbars, automatically outputs voltage/frequency adjustment signals to AVR and governor, and sends accurate closing commands to circuit breakers to realize shock-free generator grid paralleling. The dual independent microprocessor architecture greatly improves operation safety and fault tolerance for critical power generation units.

This panel-mounted synchronizer supports up to seven configurable parameter sets for different breakers and working conditions, with built-in dead bus synchronization function for black start scenarios. Equipped with LCD display, status LED indicators and multi-type communication ports, it enables real-time data upload and remote parameter configuration via Synview PC software. With strict EMC compliance and industrial conformal coating, it adapts to harsh electromagnetic environments in thermal power, hydropower and industrial self-owned power plant control cabinets, serving as core synchronization spare hardware for generator excitation systems.

Main Specifications

• Brand: ABB; Model: SYN5302A-Z; Firmware Version: V217; Part No.: 3BHB006716R0217; Origin: Switzerland;In stock
• Product Series: Synchrotact 5 Automatic Synchronizing Equipment
• Core Architecture: Dual independent redundant microprocessors, dual-channel measurement circuits
• Applicable Frequency: Adaptive 50Hz / 60Hz power systems
• Voltage Measurement Range: AC 0–1000V, precision ±0.001Hz frequency resolution
• Parameter Storage: Max 7 independent parameter groups for multi-breaker parallel control
• Communication Interfaces: Ethernet, RS485, supports Modbus TCP, IEC 61850 protocols
• Power Supply: 24VDC ±20% or 110/220V AC/DC dual power supply options
• Local Display: Built-in LCD screen + multi-channel LED status & fault indicators
• Operating Environment: -10℃ ~ +60℃, humidity 5%~95% non-condensing, IP20 front protection
• Matching Hardware: HAC782AE main control board, PPD113 signal processing board, UNITROL1000 excitation cabinet

Core Functions

• Real-time comparison of three-phase voltage, frequency and phase difference between generator and grid, automatically sending raise/lower voltage and speed adjustment commands to excitation regulator and turbine governor.
• Calculate optimal breaker closing advance time based on slip frequency, output interlock closing signal only when all synchronization conditions are met to eliminate impulse current and mechanical impact on generator units.
• Dual redundant measurement channels and dual-core processor self-check avoid single-point failure, with complete interlock protection against overvoltage, underfrequency, phase sequence error and asynchronous closing.
• Dead bus synchronization function supports safe paralleling of generators to uncharged busbars during power grid black start and emergency power recovery.
• Store historical synchronization event logs and fault records, upload operation data to upper DCS or monitoring system via industrial communication bus for remote supervision and troubleshooting.
• Compatible with Synview configuration software for offline parameter editing, online debugging and firmware upgrade, supporting direct replacement without modifying excitation control logic.

Application Scenarios

• Spare synchronization unit replacement for UNITROL series excitation cabinets of thermal power plants, hydropower stations and pumped storage power stations.
• Automatic grid-parallel control equipment for synchronous generator sets of petrochemical refineries, metallurgical steel plants and pulp & paper industrial self-owned power plants.
• Maintenance backup inventory for biomass waste heat power stations, cement kiln power generation units and microgrid independent power supply systems.
• Matching synchronization module cooperating with ABB HAC782AE main control board and PPD113 voltage sampling board in excitation control racks.
• Retrofit and upgrade spare components for aging generator excitation systems with unstable synchronization and breaker mis-closing faults.

• Global aftermarket spare stock for energy industry maintenance workshops maintaining legacy ABB Synchrotact 5 and UNITROL excitation hardware.