ABB 3BHB0006715R0277 SYN5202a-Z,V277是SYNCHROTACT 5系列双通道自动同期装置，专门用于同步发电机与电网之间自动并网操作，固件版本V277。

ABB 3BHB0006715R0277 SYN5202a-Z,V277 is SYNCHROTACT 5 dual-channel automatic synchronizer for automatic paralleling between synchronous generator and power grid, firmware version V277.

配备两套完全独立的采样与运算通道，合闸出口采用双通道与逻辑校验，内置7组可切换参数模板，支持Modbus通讯上送状态数据，满足SIL2安全等级，是火电厂、水电厂机组同期屏核心替换备件。

It has two fully independent sampling and calculation channels, closing output adopts dual-channel AND logic check. 7 switchable parameter profiles and Modbus communication are supported for status upload, SIL2 compliant, critical spare for synchronizing panels of thermal and hydropower plants.

Main Specifications 技术参数

• 1. Product Series / 产品系列：ABB SYNCHROTACT 5 Synchronizing System

• 2. Part Numbers / 型号编码：3BHB0006715R0277，SYN5202a-Z,V277

• 3. Function Type / 类型：Dual-Channel Automatic Synchronizer 双通道自动同期装置

• 4. Key Features / 特性：Dual independent channel, 7 parameter sets, Modbus, SIL2, auto synchro check

• 5. Compatibility / 配套：Generator PT/CT, breaker control circuit, SynView configuration software

Core Functions 核心功能

• 1. 实时检测发电机侧与电网侧电压、频率、相位差，自动判定同期合闸条件。
  Real-time measurement of voltage, frequency and phase difference between generator and grid to judge synchronizing condition.

• 2. 双通道独立运算，只有两路通道同时判定满足条件，才输出合闸指令，防止误并网。
  Dual independent calculation, closing command issued only when both channels confirm ready to avoid wrong paralleling.

• 3. 内置7套参数配置，通过数字输入切换，适配多个并网断路器、不同并网点。
  7 built-in parameter groups, selected via digital input for multiple breakers and different paralleling points.

• 4. Modbus通讯接口，向DCS或监控系统上传并网状态、告警、测量值与事件记录。
  Modbus interface for uploading synchronizing status, alarms, measurements and event logs to DCS system.

• 5. 支持手动检同期模式、自动同期模式，具备压差、频差、频差变化率闭锁保护。
  Support manual synchrocheck and auto synchronizing mode, block protection for delta U, delta f and df/dt.

Application Scenarios 应用场景

• 1. 火力发电厂汽轮发电机组自动同期并网控制柜。
  Automatic synchronizing control cabinet for steam turbine generator units in thermal power plants.

• 2. 水电站水轮发电机、小水电电站机组同期控制与并列保护。
  Synchronizing control and paralleling protection for hydro turbine generators and small hydropower stations.

• 3. 自备电厂、化工厂备用发电机组与厂用电系统并网控制。
  Paralleling control for captive power plant and chemical plant backup generators.

• 4. 存量SYNCHROTACT5同期屏改造，老化故障SYN5202装置备件更换。
  Retrofit of legacy SYNCHROTACT5 panels, replacement for failed SYN5202 synchronizer.

• 5. 海外EPC电站项目，发电机组同期保护系统备件备货。
  Spare stocking for generator synchronizing protection system of overseas power EPC projects.

FAQ 常见问答

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