Grid Solutions Multilin G30 Protection for Small to Medium Generators Combined Generators and Transformers The MultilinTM G30 generator protection system provides comprehensive protection for small to mediumsized steam, hydraulic and combustion-turbine generators as well as applications that have both the generator and transformer in the same zone of protection. The G30 is ideal for protecting single and multi-pole generators with single or split-phase winding configurations of generators. The G30 includes advanced automation and communication capabilities, extensive I/O options, and powerful fault recording features that can simplify fault and disturbance troubleshooting and minimize generator downtime. Key Benefits • Advanced automation capabilities for providing customized protection and control solutions • Combined generator and transformer protection solution extending asset life • 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 phasors Protection and Control • Generator differential protection including transformer • Restricted ground fault, thermal overload protection, directional, time, instantaneous, phase, neutral, negative sequence and ground overcurrent protection • Advanced functionalities such as Loss of excitation, overexcitation, 3rd Harmonic neutral undervoltage, Generator unbalance, reverse and low forward power and accidental energization • Protection and control functionality in one box, reducing the number of devices • High density inputs/outputs to support the control of many switchyard assets – all from one powerful device • Advanced IEC 61850 Ed. 1 and Ed. 2 certified implementation, complete settings via SCL files and comprehensive process bus support (IEC 61850-9-2LE or IEC 61869 or IEC 61850-9-2 Hardfiber) ensures interoperability, device managing optimization and reduced cost of ownership • Integrated large, full color display, for real-time visualization and control of the protected bay • Routable GOOSE (R-GOOSE) enables GOOSE messages going beyond the substation, which enables wide area protection and control applications Advanced Communications • Supports latest edition of waveform capture (COMTRADE 2013) simplifying fault records management • 3 independent Ethernet ports for simultaneous & dedicated network connections with IEEE 1588 support • IEC 61850-9-2LE/IEC 61869 networked or IEC61850-9-2 Hardfiber process bus support • Increased network availability via failover time reduced to zero through IEC® 62439-3 “PRP” support • Small to medium-sized generators typically driven by steam, gas or hydraulic turbines • Pumped storage generators • Combined generator and transformer in the zone of protection • Distributed Generator (DG) interconnect protection as per IEEE® 1547 Cyber Security • CyberSentry™ provides high-end cyber security aligned to industry standards and services (NERC® CIP, AAA, Radius, RBAC, Syslog) Monitoring & Metering • Advanced recording capabilities with highcapacity event recorder, configurable and extended waveform capture and data logger • Metering: curr

G30 Generator Protection System Advanced CT saturation and failure detection algorithms maintain immunity to high current AC and low current DC saturation conditions that may occur due to external disturbances, such as transformer inrush or near generator faults, without sacrificing speed or sensitivity. As part of the UR family of Protection & Control devices, the Multilin G30 offers a high degree of modularity in its design and functionality, providing superior performance while meeting the toughest requirements of the marketplace. Advanced protection and control features of this relay includes:...

G30 Generator Protection System 2nd Harmonic Blocking Characteristic Loss of Excitation Generator loss of excitation protection is provided via two negative offset mho characteristics as per IEEE C37.102. Independent pickup time delay settings and blocking input provide security for blown VT fuses and power swing conditions. Frequency Rate of Change The adaptive 2nd harmonic inhibit function will stop blocking the differential element as soon as the 2nd harmonic level drops below the pickup level if the angle of the 2nd harmonic to fundamental ratio is close to 0° or 180° (Point A). If the angle...

G30 Generator Protection System Customers who may not be using GE MU devices, could use MU from other vendors. Interoperability with MU from other vendors is expected when they comply to the mentioned standards. Topologies: PRP Start Hot-Stanby IEC 61850-9-2 HardFiber Process Bus The IEC 61850 Process Bus module is designed to interface with the Multilin HardFiber System, allowing bi-directional IEC 61850 fiber optic communications. The HardFiber System is designed to integrate seamlessly with existing UR applications, including protection functions, FlexLogic™, metering and communications. Integrated...

G30 Generator Protection System Cyber Security - CyberSentry UR CyberSentry UR enabled UR devices deliver full cyber security features that help customers to comply with NERC CIP and NIST® IR 7628 cyber security requirements. This software option delivers the following core features: The G30 provides advanced commun-ications technologies for remote data and engineering access, making it the easiest and most flexible generator protection relay to use and integrate into new and existing infrastructures. Direct support for fiber optic Ethernet provides high-bandwidth communications allowing for...

G30 Generator Protection System Direct I/O provides superior relay-to-relay communications that can be used in advanced interlocking, generation rejection and other special protection schemes. • Communication with up to 16 UR relays in single or redundant rings rather than simplistic point-to-point configurations • Connect to standard DS0 channel banks through standard RS422, G.703 or IEEE C37.94 interfaces or via direct fiber optic connections • Built-in continuous loop and channel monitoring provides real-time diagnostics of your communication channels with no external or handheld tester required...