The B-PRO relays provide low impedance differential protection for any bus bar configuration with CT saturation security, integrated breaker failure, overcurrent protection and SCADA control in a fully integrated solution. The B-PRO also provides control, automation, metering, monitoring, and high quality fault oscillography and sequence of events logging.
Application in B-PRO 4000 Bus Protection Relay
- Simple bus applications with up to 6 feeders and 2 differential zones with breaker failure, or 4 feeders and 1 transformer, including separate full transformer differential protection (87T)
- 1 or 2 separate differential zones – bus and transformer or Bus 1 and Bus 2 for multiple buses
Application in Multi-Busbar Protection Scheme
- Applications for bus configurations for up to 24 feeders Protection for 3 differential zones and a check zone.
- Scalable architecture allows flexibility to use the most cost effective hardware combinations, based on the actual number of zones and number of current inputs in the bus system
- Dynamic zone selection (including fixed zones) and Selective Bus Tripping based on Isolator status
Common Features and Benefits
- Functional Specific
- Delta Phase and Rate of Change of Differential (ROCOD) algorithms provide enhanced security during external faults with heavy CT saturation
- Protection functions include IEEE devices 87B, 27, 59, 60, 81, 50LS, 50BF, 50/51/67, 50N/51N/67, 46/50/51/67
- Backup overcurrent and breaker failure protection for each input current
- High quality fault recording capabilities and event log
- Flexible Communications
- State-of-the-art communications to accommodate the industry’s latest network-based communications
- Ethernet ports with 2 unique MAC addresses that easily accommodate network access security needs
- Substation Automation
- IEC 61850 Station Bus on dedicated optical/copper Ethernet ports included at no extra cost
- Enhanced DNP3.0 Level 2 SCADA communication protocol including user-selectable point lists, class support and multiple master station support
- Easy to Use
- User-friendly, Windows®-based relay setting and record analysis software
- Flexible programmable logic for building customized schemes with ProLogic™ statements – 24 control logic statements (total of 192 statements)
B-PRO 继电器为任何母线配置提供低阻抗差动保护，具有电流互感器饱和保护、集成断路器故障保护、过电流保护和 SCADA 控制功能，是一个完全集成的解决方案。 B-PRO 还提供控制、自动化、计量、监测以及高质量的故障示波和事件序列记录功能。
B-PRO 4000 母线保护继电器的应用
- 适用于最多 6 条馈线和 2 个差动保护区（带断路器故障保护）的简单母线应用，或 4 条馈线和 1 台变压器，包括独立的变压器差动保护 (87T)
- 1 个或 2 个独立的差动保护区 – 母线和变压器，或母线 1 和母线 2（用于多个应用）
多母线保护方案的应用
- 适用于最多 24 条馈线的母线配置，可保护 3 个差动区和 1 个检查区。
- 可扩展的架构允许根据母线系统中实际的区域数量和电流输入数量，灵活地使用最具成本效益的硬件组合。
- 基于隔离器状态的动态区域选择（包括固定区域）和选择性母线跳闸
常见特性和优势
- 特定功能
- Δ相位和差动变化率 (ROCOD) 算法可在 CT 饱和度较高的情况下，通过外部故障提供更高的安全性
- 保护功能包括符合 IEEE 87B、27、59、60、81、50LS、50BF、50/51/67、50N/51N/67、46/50/51/67 标准的设备
- 每个输入电流均提供后备过电流和断路器故障保护
- 高质量的故障记录功能和事件日志
- 灵活的通信
- 采用最先进的通信技术，满足行业最新的网络通信需求
- 配备两个独立 MAC 地址的以太网端口，轻松满足网络访问安全需求
- 变电站自动化
- IEC 61850 站总线，通过专用光纤/铜缆以太网端口免费提供
- 增强型 DNP3.0 Level 2 SCADA 通信协议，包括用户可选点列表、类别支持和多主站支持
- 易于使用
- 用户友好的基于 Windows® 的继电器设置和记录分析软件
- 使用 ProLogic™ 语句构建自定义方案的灵活可编程逻辑 – 24 个控制逻辑语句（共 192 个语句）
