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Phase distance with independent compensation settings
Ground distance (three zones) with independent self and mutual zero sequence compensation
Out-of-step tripping and power swing blocking
Line pickup
Directional overcurrent: Phase, neutral and negative sequence
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Synchronism check
Four-shot auto-recloser
VT fuse failure detector
Customize protection and control functions with FlexLogic™, FlexCurves™, and FlexElements™
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The D30 is a cost effective distance protection relay intended for protecting sub-transmission lines and underground cables of different voltage levels. Part of the Universal Relay family, the D30 comes with a variety of versatile features truly integrating protection, monitoring, metering, communication and control in one easy-to-use device. The Universal Relay family offers higher degree of modularity in its design and functionality providing superior performance in protection and control meeting the toughest requirements of the marketplace. |
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Metering - current, voltage, power, energy, frequency
Oscillography – analog and digital parameters at 64 samples/cycle
Event Recorder - 1024 time tagged events with 0.5ms scan of digital inputs
Data Logger - 16 channels with sampling rate up to 1 sample / cycle
Setting Security Audit Trail for tracking changes to D30 configuration
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The D30 is the single point for protection, control, metering, and monitoring in one integrated device that can be easily connected directly to HMI or SCADA monitoring and control systems. |
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The D30 incorporates advanced automation features including powerful FlexLogic™ programmable logic, communication, and SCADA capabilities that far surpass what is found in the average line protection relay used for subtransmission. The D30 integrates seamlessly with other UR relays for complete system protection. |
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FlexLogicTM allows customizing the D30 for custom protection, control and automation allowing users to build line protection schemes and applications for their equipment. |
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Networking interfaces – 100Mbit Fiber Optic Ethernet, RS485, RS232, RS422, G.703, C37.94
Multiple Protocols - IEC61850, DNP 3.0 Level 2, Modbus RTU, Modbus TCP/IP, IEC60870-5-104, Ethernet Global Data (EGD)
Direct I/O – secure, high-speed exchange of data between URs for Direct Transfer Trip applications
Embedded Managed Ethernet Switch with 4 - 100 Mbit Fiber optic ports and 2 copper ports
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The D30 provides advanced commun-ications technologies for remote data and engineering access, making it easy and flexible to use and integrate into new and existing infrastructures. Direct support for 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 redundant Ethernet option and the embedded managed Ethernet switch provide the means of creating fault tolerant communication architectures in an easy, cost-effective manner. The D30 supports the most popular industry standard protocols enabling easy, direct integration into monitoring and SCADA systems.
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IEC 61850
DNP 3.0
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IEC 60870-5-104
Modbus RTU, Modbus TCP/IP
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In addition to providing high-speed connectivity directly to your Universal Relay, the MultiLink UR Switch module provides an additional 4 Fiber Ethernet ports, for connection to other relays in the system as well as upstream connectivity. It also provides 2 RJ-45 copper Ethernet ports which can be used to connect local devices such as PCs, meters, or virtually anything else in the system. |
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The UR Switch provides a simple way to add fully-managed Ethernet networking to your relays and devices without the need for additional hardware or a dedicated communications cabinet.
The UR Switch includes all the management and features that come with all MultiLink managed switches, and can be easily integrated into a network that has other Ethernet switches.
When used in a ring topology with other UR switch modules or MultiLink switches, the UR Switch can be configured to use MultiLink’s Smart RSTP feature to provide industry-leading network recovery for ring topologies, at a speed of less than 5ms per switch. Learn More |
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Use the D30 with integrated IEC 61850 to lower costs associated with generator protection, control and automation. GE’s leadership in
IEC 61850 comes from thousands of installed devices and follows on years of development experience with UCA 2.0. |
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The D30’s 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 the existing Universal Relay applications, including protection functions, FlexLogic, metering and communications. Learn More |
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The EnerVista™ Suite is an industry-leading set of software programs that simplifies every aspect of using the D30 relay. The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the D30 into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part of the UR Setup software included with every UR relay, to carry out postmortem event analysis to ensure proper protection system operation. Learn More |
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Access Control
Multilin devices and relays are designed with simple but powerful security to enable reliability and compliance for virtually any project or implementation. With support for multi-level permissions and multi-factor supervisory controls, Multilin devices can help you manage the integrity of your system during commissioning, testing, implementation, and beyond.
The UR Family provides separate authentication for settings and commands to the system. In addition, as discrete authentications for local and remote access, it also provides a supervisory control factor that can lock or unlock a device for configuration changes and other modifications. |
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Intrusion Detection
Multilin’s family of protection and control products can also help enable your security perimeter and intrusion detection programs. By providing essential alarming and logging of critical events, Multilin devices can help you detect potential breaches within your system and allow you to respond quickly and effectively. Specifically, unsuccessful access attempts are logged, alarmed, and lead to potential attackers being locked out. This ensures the reliability of your system during questionable activity.control factor that can lock or unlock a device for configuration changes and other modifications. |
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Auditing and Reporting
With the Security Audit Trail reporting feature and support for Event logging of key
activities such as configuration changes, Multilin devices can help ensure device and
protection system integrity, and perform forensic auditing of activities and changes
for compliance. |
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Protection & Control 
