GE VERNOVA | CENTRALIZED & DISTRIBUTED BUS PROTECTION SYSTEM | MULTILIN B30
The Multilin B30 bus protection relay features integrated protection, visualization and metering for LV, MV, HV and EHV busbars, providing cost-effective, feature-focused centralized or distributed busbar protection scheme. Use the B30 to protect busbars with up to 6 feeders 2-zones (conventional CT inputs) or up to 16 feeders 6-zones (with process bus module) with up to six three-phase differential zones. The Multilin B30 relay is a cost-effective alternative to high-impedance schemes, ideal for breaker-and-half bus schemes, with integrated feeder backup protection.
Application
- Re-configurable simple bus applications, up to 16 feeders and 6 differential zones with breaker failure
- Conventional CT/VT or digital S/S via IEC 61850-9-2LE or IEC 61869 process bus
- Centralized (six feeders, two zones) or distributed (sixteen feeders, six zones) busbar schemes
- Integrated bus differential, backup protection visualization and metering for LV, MV, HV and EHV substations
- CPC schemes - multiple feeders
Key Benefits
- High speed differential protection algorithm for sub-cycle trip times of 0.75 power cycle with CT saturation detection with only 2ms of saturation-free current
- Multiple ethernet ports for station and process bus with Advanced IEC 61850 Ed. 1 and Ed. 2 certified implementation, complete settings via SCL files and highly flexible process bus support (IEC 61850-9-2LE or IEC 61850-9-2 Hardfiber) ensures interoperability, device managing optimization and reduced cost of ownership
- Routable GOOSE (R-GOOSE) enables GOOSE messages going beyond the substation
- Application flexibility with multiple I/O options including high density I/O, programmable logic, modularity, and specific customization
- Advance Cyber security features "CyberSentry" that helps meet modern industry requirements
- An integrated large, full color display, provides real-time visualization and control of the protected bay, via a bay mimic as well as annunciator functionality and graphical visualization of phasor
Protection & Control
The B30 can be deployed as either centralized or distributed phase segregated scheme. As centralized Bus Bar Protection, it does not rely on extensive communications between IEDs, an approach that increases overall reliability. As distributed Bus Bar protection, the B30 uses either "61850-9-2LE or IEC61869 merging units" or "61850-9-2 Brick" as bay units. This type of scheme is superior when expecting future busbar expansions.The B30 bus differential protection system provides secure, sub-cycle low-impedance bus protection for up to sixteen feeders and up to six busbar sections. The B30 is ideally suited for applications where high-impedance schemes were typically used. Overall system costs can be reduced with the B30, since there is no need for dedicated, or interposing, CTs. The B30 comes with advanced features, such as breaker failure, CT trouble detection, undervoltage supervision, and dynamic bus replica. With its extreme flexibility, which includes a CT ratio mismatch of up to 32:1 between terminals, the B30 is the ideal solution in a wide variety of bus differential applications.
Part of the Universal Relay family, the B30 comes with a variety of versatile features, truly integrating protection, monitoring, metering, communication and control in one easy-to-use relay. The Universal Relay family offers a high degree of modularity in its design and functionality, providing superior performance in protection and control, while meeting the toughest requirements of the marketplace.
Part of the Universal Relay family, the B30 comes with a variety of versatile features, truly integrating protection, monitoring, metering, communication and control in one easy-to-use relay. The Universal Relay family offers a high degree of modularity in its design and functionality, providing superior performance in protection and control, while meeting the toughest requirements of the marketplace.
Key Features
Complete IEC 61850 Process Bus solution providing resource optimization and minimizing total P&C life cycle costs.- Three independent 100Mbps Ethernet ports enable purpose specific LAN support that eliminates latency effect of heavy traffic protocols on mission critical communication services
- Embedded IEEE 1588 time-synch protocol support eliminates dedicated IRIG-B wiring requirements for IEDs
- Direct I/O secures high-speed exchange of binary data between URs
- Increase network availability by reducing failover time to zero through IEC62439-3 PRP, HSR or dual HSR support
Advanced Communications
The Multilin B30 bus protection relay provides for secure remote data and engineering access, making it easy and flexible to use and integrate into new and existing infrastructures. Fiber optic Ethernet provides high-bandwidth communications allowing for low-latency controls and high-speed file transfers of relay fault and event record information. The available three independent and redundant Ethernet options provide the means to create fault tolerant communication architectures in an easy, cost-effective manner.The B30 supports the most popular industry standard protocols enabling easy, direct integration into DCS and SCADA systems.
- IEC 61850-9-2LE or IEC 61869 point-to-point or networked or IEC61850-9-2 Hardfiber process bus support
- DNP 3.0 (serial & TCP/IP)
- Ethernet Global Data (EGD)
- IEC 60870-5-103 and IEC 60870-5-104
- Modbus RTU, Modbus TCP/IP
- HTTP, TFTP, SFTP and MMS file transfer
- Redundant SNTP and IEEE 1588 for time synchronization
- PRP as per IEC 62439-3
- Supports Routable GOOSE (R-GOOSE)
